Annotation of gforth/configure.in, revision 1.307

1.1       anton       1: dnl Process this file with autoconf to produce a configure script.
1.20      anton       2: 
1.297     anton       3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009,2010,2011 Free Software Foundation, Inc.
1.20      anton       4: 
                      5: #This file is part of Gforth.
                      6: 
                      7: #Gforth is free software; you can redistribute it and/or
                      8: #modify it under the terms of the GNU General Public License
1.201     anton       9: #as published by the Free Software Foundation, either version 3
1.20      anton      10: #of the License, or (at your option) any later version.
                     11: 
                     12: #This program is distributed in the hope that it will be useful,
                     13: #but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14: #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the
                     15: #GNU General Public License for more details.
                     16: 
                     17: #You should have received a copy of the GNU General Public License
1.201     anton      18: #along with this program. If not, see http://www.gnu.org/licenses/.
1.20      anton      19: 
1.121     anton      20: 
1.34      anton      21: dnl We use some automake macros here,
                     22: dnl but don't use automake for creating Makefile.in
1.299     pazsan     23: AC_INIT([gforth],[0.7.9-20120317],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
1.113     anton      24: AC_PREREQ(2.54)
1.47      anton      25: #snapshots have numbers major.minor.release-YYYYMMDD
1.92      anton      26: #note that lexicographic ordering must be heeded.
1.47      anton      27: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
1.299     pazsan     28: UPDATED="March 17, 2012"
1.84      anton      29: AC_SUBST(UPDATED)
1.94      anton      30: AC_CONFIG_HEADERS(engine/config.h)
1.14      anton      31: 
1.225     anton      32: #remnants from having ltdl as convenience library
                     33: LTDLDEPS=""
                     34: LTDLINCL=""
                     35: LIBLTDL=""
                     36: LTDL_LDLIBS=""
                     37: AC_SUBST(LTDLDEPS)
                     38: AC_SUBST(LTDLINCL)
                     39: AC_SUBST(LIBLTDL)
1.219     anton      40: AC_SUBST(LTDL_LDLIBS)
                     41: 
1.121     anton      42: #suppress the "-g -O2" default
                     43: test "$CFLAGS" || CFLAGS=-O2
                     44: 
1.150     pazsan     45: AC_ARG_ENABLE(force-cdiv,
                     46:        AC_HELP_STRING([--enable-force-cdiv],
                     47:                       [  Use the native C division - symmetric - instead of
                     48:                          floored division (default disabled).]),
                     49:        ,enable_force_cdiv=no)
                     50: test "$enable_force_cdiv" = "no"||
                     51:   AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance])
                     52: 
1.149     anton      53: AC_SUBST(PROFEXES)
                     54: AC_SUBST(PROFOBJS)
1.135     anton      55: AC_ARG_ENABLE(prof,
1.149     anton      56:        AC_HELP_STRING([--enable-prof],
                     57:                        [ Build gforth-prof, which outputs frequently occuring
                     58:                           sequences of primitives.]),
                     59:        ,enable_prof=no)
1.204     anton      60: if test "$enable_prof" != "no"; then
                     61:   PROFEXES='gforth-prof$(OPT)$(EXE)'; PROFOBJS='engine-prof$(OPT).o main-prof$(OPT).o profile$(OPT).o'
1.149     anton      62: fi
1.1       anton      63: 
1.9       pazsan     64: AC_ARG_WITH(debug,
1.122     pazsan     65: [  --with-debug                  specifies option -g to compile with debug info
                     66:   --without-debug        omits the -g switch and creates smaller images on
                     67:                          machines where "strip" has problems with gcc style
                     68:                          debugging informations.],
1.9       pazsan     69: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
1.122     pazsan     70: 
1.185     pazsan     71: GCC_LD="\$(GCC)"
                     72: EC_MODE="false"
1.275     pazsan     73: NO_EC=""
1.291     pazsan     74: NO_CROSS=""
1.185     pazsan     75: EC=""
1.204     anton      76: engine2='engine2$(OPT).o'
                     77: engine_fast2='engine-fast2$(OPT).o'
1.185     pazsan     78: no_dynamic=""
                     79: image_i=""
                     80: signals_o="io.o signals.o"
                     81: 
1.275     pazsan     82: AC_CANONICAL_HOST
1.182     pazsan     83: AC_ARG_WITH(ec,
                     84:        AC_HELP_STRING([--with-ec=<arch>],
1.168     pazsan     85:                        [  Build gforth for systems without OS.]),
1.182     pazsan     86: [if test "$withval" = "no"; then
                     87:   echo "defining hosted system"
                     88: else
                     89:   echo "defining standalone system (${withval})"
1.168     pazsan     90:   AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
1.167     pazsan     91:   EC_MODE="true"
1.178     pazsan     92:   EC="-ec"
1.275     pazsan     93:   NO_EC="#"
1.291     pazsan     94:   NO_CROSS="#"
1.178     pazsan     95:   engine2=""
                     96:   engine_fast2=""
                     97:   no_dynamic="-DNO_DYNAMIC"
                     98:   image_i="image.i"
1.182     pazsan     99:   if test "$withval" != "yes"; then
                    100:     signals_o="io-${withval}.o"
                    101:   else
                    102:     signals_o="io.o"
                    103:   fi
1.275     pazsan    104:   if test -f "arch/$host_cpu/${withval}/config.sh"; then
                    105:     source "arch/$host_cpu/${withval}/config.sh"
                    106:   fi
1.183     pazsan    107:   GCC_PATH=$(which $CC)
                    108:   LIB_PATH=${GCC_PATH%/*/*}
                    109:   GCC_LD="\$(LD)"
1.184     pazsan    110:   platform=${withval}
1.182     pazsan    111: fi])
1.167     pazsan    112: 
1.290     pazsan    113: AC_ARG_WITH(cross,
                    114:        AC_HELP_STRING([--with-cross=<arch>],
                    115:                        [  Build gforth using a cross compiler.]),
                    116: [if test "$withval" = "no"; then
                    117:   echo "defining hosted system"
                    118: else
                    119:   echo "defining cross compiled system (${withval})"
                    120:   if test -f "arch/$host_cpu/${withval}/config.sh"; then
                    121:     source "arch/$host_cpu/${withval}/config.sh"
                    122:   fi
                    123:   GCC_PATH=$(which $CC)
                    124:   LIB_PATH=${GCC_PATH%/*/*}
                    125:   platform=${withval}
1.291     pazsan    126:   NO_EC=""
                    127:   NO_CROSS="#"
1.290     pazsan    128: fi])
                    129: 
1.307   ! pazsan    130: AC_ARG_WITH(arch,
        !           131:        AC_HELP_STRING([--with-arch=<arch>],
        !           132:                        [  Build gforth binaries with <arch> postfix]),
        !           133: [if test "$withval" = "no"; then
        !           134:   ARCH=""
        !           135: else
        !           136:   ARCH=-${withval}
        !           137: fi])
        !           138: AC_SUBST(ARCH)
        !           139: 
1.104     anton     140: #variables mentioned in INSTALL
1.302     pazsan    141: AC_ARG_VAR(SH, [The shell])
1.203     anton     142: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
1.104     anton     143: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
1.203     anton     144: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
1.151     anton     145: AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).])
1.173     anton     146: AC_ARG_VAR(GCC_PR15242_WORKAROUND, [Force the enabling (1) or disabling (0) of a workaround for a gcc-3.x performance bug (default unset: use workaround for gcc-3.x)])
1.236     anton     147: AC_ARG_VAR(LIBCC_BUILD_SRC, [(Additional) libcc interface source files that should be processed on building and installation (default none)])
1.173     anton     148: 
1.104     anton     149: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
1.183     pazsan    150: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
1.104     anton     151: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
                    152: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
                    153: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
                    154: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
                    155: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
                    156: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
1.254     anton     157: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
                    158: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
1.123     anton     159: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
                    160: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
1.190     anton     161: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
1.166     anton     162: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
1.174     anton     163: AC_ARG_VAR(asmcomment, [assembler comment start string])
1.175     anton     164: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
1.250     anton     165: AC_ARG_VAR(LTDL_LIBRARY_PATH, [additional directories for libltdl (for some 64-bit platforms)])
1.82      anton     166: 
1.96      anton     167: #set up feature test macros, so the tests get them right:
                    168: # turn on all POSIX, SUSv3, and GNU features if available
1.97      anton     169: AC_GNU_SOURCE
                    170: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
                    171: 
                    172: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
                    173: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
                    174: dnl but not for _XOPEN_SOURCE)
                    175: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
                    176: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
                    177: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96      anton     178: # turn on large file support with 64-bit off_t where available
1.105     anton     179: AC_SYS_LARGEFILE
                    180: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
                    181: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96      anton     182: 
1.82      anton     183: #currently we force direct threading this way.  Eventually we should
                    184: #setup in the arch and engine files right
1.16      anton     185: 
1.15      pazsan    186: AC_PROG_CC
                    187: 
1.92      anton     188: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9       pazsan    189: 
1.302     pazsan    190: test "x$SH" = "x" && SH="/bin/sh"
                    191: 
1.190     anton     192: AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
                    193: test x$condbranch_opt = x && 
1.238     anton     194: if ($CC -v 2>&1 |grep 'gcc version 3' >/dev/null); then
1.190     anton     195:    condbranch_opt=0
                    196: else
                    197:    condbranch_opt=1
                    198: fi
                    199: AC_MSG_RESULT($condbranch_opt)
                    200: AC_SUBST(condbranch_opt)
1.301     pazsan    201: AC_SUBST(host_cpu)
1.190     anton     202: 
1.302     pazsan    203: AC_SUBST(SH)
1.15      pazsan    204: AC_SUBST(CC)
1.183     pazsan    205: AC_SUBST(GCC_LD)
1.9       pazsan    206: AC_SUBST(DEBUGFLAG)
1.178     pazsan    207: AC_SUBST(EC)
1.275     pazsan    208: AC_SUBST(NO_EC)
1.291     pazsan    209: AC_SUBST(NO_CROSS)
1.167     pazsan    210: AC_SUBST(EC_MODE)
1.178     pazsan    211: AC_SUBST(engine2)
                    212: AC_SUBST(engine_fast2)
                    213: AC_SUBST(no_dynamic)
                    214: AC_SUBST(image_i)
1.179     pazsan    215: AC_SUBST(signals_o)
1.7       anton     216: 
1.174     anton     217: #this is used to disable some (not generally essential) part of the
                    218: #Makefile that some makes don't grok.  It would be better to test for
                    219: #this specific Makefile feature than the make version.
1.128     pazsan    220: AC_MSG_CHECKING(make type)
1.174     anton     221: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
1.128     pazsan    222: GNUMAKE='#'
                    223: test "$make_type" = "GNU Make" && GNUMAKE=''
                    224: AC_MSG_RESULT($make_type)
                    225: AC_SUBST(GNUMAKE)
                    226: 
1.304     pazsan    227: if test "$ac_export_dynamic" != yes; then
                    228:   AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
                    229:   OLDLDFLAGS=$LDFLAGS
                    230:   LDFLAGS="$LDFLAGS -export-dynamic"
                    231:   dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
                    232:   dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
                    233:   AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
                    234:   test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
                    235:   AC_MSG_RESULT($ac_export_dynamic)
                    236: else
                    237:   LDFLAGS="$LDFLAGS -export-dynamic"
                    238: fi
1.50      jwilke    239: 
1.1       anton     240: #terminology is a bit unusual here: The host is the system on which
                    241: #gforth will run; the system on which configure will run is the `build'
                    242: case "$host_cpu" in
1.136     anton     243:        arm*)
                    244:                machine=arm
                    245:                CFLAGS="$CFLAGS -fomit-frame-pointer"
1.184     pazsan    246:                if test x$platform = xnxt; then
1.183     pazsan    247:                   CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
                    248:                fi
1.175     anton     249:                if test -z $arm_cacheflush; then
1.212     dvdkhlng  250:                   case "$host_os" in
                    251:                     *linux*)
1.260     anton     252:                        AC_LIBOBJ(../arch/arm/cacheflush-linux) 
1.212     dvdkhlng  253:                        ;;
                    254:                     *)   
                    255:                        no_dynamic_default=1
1.260     anton     256:                        AC_LIBOBJ(../arch/arm/cacheflush0)
1.212     dvdkhlng  257:                        AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    258:                        ;;
                    259:                    esac
1.260     anton     260:                 else
                    261:                    AC_LIBOBJ(../$arm_cacheflush)
                    262:                    test $srcdir = . || AC_MSG_WARN([setting arm_cacheflush requires building in the source directory])
1.136     anton     263:                fi
1.177     anton     264:                 #longer skipcodes lead to problems on ARM, and it uses
                    265:                 #only 4-byte alignment anyway
                    266:                test "$skipcode" || skipcode="nop"
1.136     anton     267:                ;;
1.1       anton     268:        hppa*)
1.34      anton     269:                machine=hppa
1.87      pazsan    270:                AC_LIBOBJ(../arch/hppa/cache)
1.134     anton     271:                #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
                    272:                LDFLAGS="$LDFLAGS -Xlinker -N"
1.47      anton     273:                LIBS="$LIBS -L/lib/pa1.1/"
1.1       anton     274:                ;;
                    275:        sparc*)
1.34      anton     276:                machine=sparc
1.1       anton     277:                ;;
1.31      anton     278:        i386)
1.34      anton     279:                machine=386
1.189     anton     280:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
1.31      anton     281:                ;;
                    282:        i486)
1.34      anton     283:                machine=386
1.282     dvdkhlng  284:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
                    285:                CFLAGS_1="$CFLAGS"
                    286:                CFLAGS="$CFLAGS -march=i486"
                    287:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
                    288:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
1.31      anton     289:                ;;
1.77      anton     290:        i*86)
1.34      anton     291:                machine=386
1.189     anton     292:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
1.56      pazsan    293:                CFLAGS_1="$CFLAGS"
1.282     dvdkhlng  294:                CFLAGS="$CFLAGS -march=pentium -mtune=generic"
                    295:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -march=pentium")
1.56      pazsan    296:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.282     dvdkhlng  297:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
1.1       anton     298:                ;;
1.133     anton     299:        x86_64)
1.192     pazsan    300:                case $CC
                    301:                in
                    302:                    *-m32*)
                    303:                        machine=386
                    304:                        CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
                    305:                        CFLAGS_1="$CFLAGS"
                    306:                        CFLAGS="$CFLAGS -march=athlon64"
                    307:                        ;;
                    308:                    *)
                    309:                        machine=amd64
                    310:                        ;;
                    311:                esac
1.133     anton     312:                ;;
1.136     anton     313:        ia64*)
                    314:                machine=ia64
                    315:                AC_LIBOBJ(../arch/ia64/flush_icache_block)
                    316:                test "$skipcode" || skipcode="nop.i 0"
                    317:                #".skip 16" passes the test below,
                    318:                # but gives an assembler error in engine
                    319:                ;;
1.26      pazsan    320:         m68k)
1.34      anton     321:                machine=m68k
1.32      pazsan    322:                CFLAGS="$CFLAGS -fomit-frame-pointer"
                    323:                if test "$host_os" = "nextstep3"
                    324:                then
1.87      pazsan    325:                        AC_LIBOBJ(termios)
1.32      pazsan    326:                fi
1.26      pazsan    327:                ;;
1.1       anton     328:        mips*)
1.34      anton     329:                machine=mips
1.281     dvdkhlng  330:                AC_LIBOBJ(../arch/mips/check_prim) 
1.92      anton     331:                #dynamic native code has the following problems on MIPS:
                    332:                #
                    333:                #1) J/JAL seems relocatable, but is are only
                    334:                #relocatable within a 256MB-segment.  While we try to
                    335:                #get the linker to arrange this, there is no guarantee
                    336:                #that this will succeed (and if the user uses a lot of
                    337:                #memory, it is likely to fail).
                    338:                #
                    339:                #2) The way we generate dynamic native code may
                    340:                #violate MIPS architectural restrictions (in
                    341:                #particular, the delay slots of LW, MFLO, etc.)
                    342:                #
                    343:                #Therefore we disable dynamic native code by default:
1.255     anton     344:                if test -z "$no_dynamic_default"; then
1.136     anton     345:                    no_dynamic_default=1
                    346:                    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
                    347:                fi
1.1       anton     348:                ;;
1.9       pazsan    349:        alpha*)
1.34      anton     350:                machine=alpha
1.58      anton     351:                #full IEEE FP support for more uniformity across platforms:
                    352:                CFLAGS="$CFLAGS -mieee"
1.9       pazsan    353:                ;;
1.69      anton     354:        power*|rs6000)
1.34      anton     355:                machine=power
1.138     anton     356:                AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103     anton     357:                #long long is broken on (at least) gcc-2.95.* for PPC
1.165     anton     358:                test x$ac_cv_sizeof_long_long = x && 
1.238     anton     359:                ($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) &&
1.263     anton     360:                      ac_cv_sizeof_long_long=0
1.203     anton     361:                 #The only architecture with enough callee-saved registers
                    362:                 test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
                    363:                 #or use 2, hardly slower at run-time and starts up faster
1.263     anton     364: 
                    365:                 #the skipcode that is normally selected below does not
                    366:                 #work with gcc-3.[34]
                    367:                test "$skipcode" || skipcode="nop\nnop\nnop\nnop"
1.31      anton     368:                ;;
1.1       anton     369:        *)
1.92      anton     370:                AC_MSG_WARN([Using a generic machine description])
                    371:                AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
                    372:                AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34      anton     373:                machine=generic
1.97      anton     374:                #I-cache flushing would be needed for dynamic code generation
1.136     anton     375:                if test -z $no_dynamic_default; then
                    376:                    no_dynamic_default=1
                    377:                    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    378:                fi
1.1       anton     379: esac
1.10      anton     380: AC_SUBST(host)
1.151     anton     381: 
1.184     pazsan    382: MAKEINC=""
1.276     pazsan    383: GFORTH_EXE="true"
1.184     pazsan    384: 
                    385: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
1.183     pazsan    386: if test x$EC_MODE = xtrue
                    387: then
1.184     pazsan    388:        echo "Check for arch/$machine/$platform/gforth.ld"
                    389:        if test -f arch/$machine/$platform/gforth.ld
1.183     pazsan    390:        then
1.184     pazsan    391:                LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
                    392:                if test x$platform = xnxt; then
1.183     pazsan    393:                        LIBS="$LIB_PATH/lib/gcc/arm-elf/$($CC --version | grep GCC | cut -d' ' -f3)/interwork/libgcc.a $LIB_PATH/arm-elf/lib/interwork/libc.a $LIBS"
                    394:                fi
                    395:        fi
1.184     pazsan    396:        if test -f arch/$machine/$platform/make.inc
                    397:        then
                    398:                MAKEINC="include ../arch/$machine/$platform/make.inc"
1.276     pazsan    399:                GFORTH_EXE="\$(MAKE) -f arch/$machine/$platform/make.inc \$@.exe"
1.184     pazsan    400:        fi
1.183     pazsan    401: fi
1.184     pazsan    402: AC_SUBST(MAKEINC)
1.183     pazsan    403: 
1.203     anton     404: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
                    405: 
                    406: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
                    407: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
                    408:                   [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
1.151     anton     409: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
                    410: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
                    411:                   [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146     pazsan    412: 
1.173     anton     413: test x$GCC_PR15242_WORKAROUND = x ||
                    414: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
                    415:                    [force (1) or forbid (0) use of a workaround for a gcc performance bug])
                    416: 
1.103     anton     417: dnl the following macro produces a warning with autoconf-2.1
                    418: AC_CHECK_SIZEOF(char *)
                    419: case "$ac_cv_sizeof_char_p" in
                    420:   2)
                    421:     wordsize=16
                    422:     ;;
                    423:   4)
                    424:     wordsize=32
                    425:     ;;
                    426:   8)
                    427:     wordsize=64
                    428:     ;;
                    429: esac
                    430: 
1.183     pazsan    431: AC_CHECK_SIZEOF(void *)
                    432: case "$ac_cv_sizeof_void_p" in
                    433:   2)
                    434:     vwordsize=16
                    435:     ;;
                    436:   4)
                    437:     vwordsize=32
                    438:     ;;
                    439:   8)
                    440:     vwordsize=64
                    441:     ;;
                    442: esac
                    443: 
1.103     anton     444: AC_CHECK_SIZEOF(char)
                    445: AC_CHECK_SIZEOF(short)
                    446: AC_CHECK_SIZEOF(int)
                    447: AC_CHECK_SIZEOF(long)
                    448: AC_CHECK_SIZEOF(long long)
                    449: AC_CHECK_SIZEOF(intptr_t)
                    450: AC_CHECK_SIZEOF(int128_t)
1.144     pazsan    451: AC_CHECK_SIZEOF(uint128_t)
1.103     anton     452: 
                    453: AC_MSG_CHECKING([for a C type for cells])
                    454: ac_cv_int_type_cell=none
                    455: case "$ac_cv_sizeof_char_p" in
                    456:   $ac_cv_sizeof_int)
                    457:     ac_cv_int_type_cell=int
                    458:     ;;
                    459:   $ac_cv_sizeof_short)
                    460:     ac_cv_int_type_cell=short
                    461:     ;;
                    462:   $ac_cv_sizeof_char)
                    463:     ac_cv_int_type_cell=char
                    464:     ;;
                    465:   $ac_cv_sizeof_long)
                    466:     ac_cv_int_type_cell=long
                    467:     ;;
                    468:   $ac_cv_sizeof_long_long)
                    469:     ac_cv_int_type_cell="long long"
                    470:     ;;
                    471:   $ac_cv_sizeof_intptr_t)
                    472:     ac_cv_int_type_cell="intptr_t"
                    473:     ;;
                    474: esac
                    475: AC_MSG_RESULT($ac_cv_int_type_cell)
                    476: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
                    477: 
1.153     pazsan    478: AC_MSG_CHECKING([for a C type for wydes])
                    479: ac_cv_wyde_type_cell=none
                    480: case 2 in
                    481:   $ac_cv_sizeof_int)
                    482:     ac_cv_wyde_type_cell=int
                    483:     ;;
                    484:   $ac_cv_sizeof_short)
                    485:     ac_cv_wyde_type_cell=short
                    486:     ;;
                    487:   $ac_cv_sizeof_char)
                    488:     ac_cv_wyde_type_cell=char
                    489:     ;;
                    490:   $ac_cv_sizeof_long)
                    491:     ac_cv_wyde_type_cell=long
                    492:     ;;
                    493:   $ac_cv_sizeof_long_long)
                    494:     ac_cv_wyde_type_cell="long long"
                    495:     ;;
                    496:   $ac_cv_sizeof_intptr_t)
                    497:     ac_cv_wyde_type_cell="intptr_t"
                    498:     ;;
                    499: esac
                    500: AC_MSG_RESULT($ac_cv_wyde_type_cell)
                    501: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
                    502: 
                    503: AC_MSG_CHECKING([for a C type for tetrabytes])
                    504: ac_cv_tetrabyte_type_cell=none
                    505: case 4 in
                    506:   $ac_cv_sizeof_int)
                    507:     ac_cv_tetrabyte_type_cell=int
                    508:     ;;
                    509:   $ac_cv_sizeof_short)
                    510:     ac_cv_tetrabyte_type_cell=short
                    511:     ;;
                    512:   $ac_cv_sizeof_char)
                    513:     ac_cv_tetrabyte_type_cell=char
                    514:     ;;
                    515:   $ac_cv_sizeof_long)
                    516:     ac_cv_tetrabyte_type_cell=long
                    517:     ;;
                    518:   $ac_cv_sizeof_long_long)
                    519:     ac_cv_tetrabyte_type_cell="long long"
                    520:     ;;
                    521:   $ac_cv_sizeof_intptr_t)
                    522:     ac_cv_tetrabyte_type_cell="intptr_t"
                    523:     ;;
                    524: esac
                    525: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
                    526: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
                    527: 
1.277     pazsan    528: AC_MSG_CHECKING([for a C type for octabytes])
                    529: ac_cv_octabyte_type_cell=none
                    530: case 8 in
                    531:   $ac_cv_sizeof_int)
                    532:     ac_cv_octabyte_type_cell=int
                    533:     ;;
                    534:   $ac_cv_sizeof_short)
                    535:     ac_cv_octabyte_type_cell=short
                    536:     ;;
                    537:   $ac_cv_sizeof_char)
                    538:     ac_cv_octabyte_type_cell=char
                    539:     ;;
                    540:   $ac_cv_sizeof_long)
                    541:     ac_cv_octabyte_type_cell=long
                    542:     ;;
                    543:   $ac_cv_sizeof_long_long)
                    544:     ac_cv_octabyte_type_cell="long long"
                    545:     ;;
                    546:   $ac_cv_sizeof_intptr_t)
                    547:     ac_cv_octabyte_type_cell="intptr_t"
                    548:     ;;
                    549: esac
                    550: AC_MSG_RESULT($ac_cv_octabyte_type_cell)
                    551: AC_DEFINE_UNQUOTED(OCTABYTE_TYPE,$ac_cv_octabyte_type_cell,[an integer type that is 8 bytes long])
                    552: 
1.103     anton     553: AC_MSG_CHECKING([for a C type for double-cells])
                    554: ac_cv_int_type_double_cell=none
                    555: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    556:   $ac_cv_sizeof_short)
                    557:     ac_cv_int_type_double_cell=short
                    558:     ;;
                    559:   $ac_cv_sizeof_int)
                    560:     ac_cv_int_type_double_cell=int
                    561:     ;;
                    562:   $ac_cv_sizeof_long)
                    563:     ac_cv_int_type_double_cell=long
                    564:     ;;
                    565:   $ac_cv_sizeof_long_long)
                    566:     ac_cv_int_type_double_cell="long long"
                    567:     ;;
                    568:   $ac_cv_sizeof_intptr_t)
                    569:     ac_cv_int_type_double_cell="intptr_t"
                    570:     ;;
1.205     anton     571:   $ac_cv_sizeof_int128_t)
1.103     anton     572:     ac_cv_int_type_double_cell="int128_t"
                    573:     ;;
                    574: esac
                    575: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144     pazsan    576: 
                    577: AC_MSG_CHECKING([for a C type for unsigned double-cells])
                    578: ac_cv_int_type_double_ucell=none
                    579: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    580:   $ac_cv_sizeof_short)
                    581:     ac_cv_int_type_double_ucell="unsigned short"
                    582:     ;;
                    583:   $ac_cv_sizeof_int)
                    584:     ac_cv_int_type_double_ucell="unsigned int"
                    585:     ;;
                    586:   $ac_cv_sizeof_long)
                    587:     ac_cv_int_type_double_ucell="unsigned long"
                    588:     ;;
                    589:   $ac_cv_sizeof_long_long)
                    590:     ac_cv_int_type_double_ucell="unsigned long long"
                    591:     ;;
                    592:   $ac_cv_sizeof_intptr_t)
                    593:     ac_cv_int_type_double_ucell="unsigned intptr_t"
                    594:     ;;
                    595:   $ac_cv_sizeof_uint128_t)
                    596:     ac_cv_int_type_double_ucell="uint128_t"
                    597:     ;;
                    598: esac
                    599: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
                    600: 
1.204     anton     601: if test "$ac_cv_int_type_double_cell" != none && \
                    602:    test "$ac_cv_int_type_double_ucell" != none
1.144     pazsan    603: then
1.103     anton     604:        AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144     pazsan    605:        AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.206     anton     606:         OPTS=-ll
                    607: else
1.217     pazsan    608:         if test "$ac_cv_sizeof_char_p" = 8; then
1.213     anton     609:            OPTS="-ll -noll"
1.206     anton     610:         else
                    611:            OPTS=-noll
                    612:         fi
1.103     anton     613: fi
1.207     anton     614: 
1.258     anton     615: if grep FORCE_REG $srcdir/arch/$machine/machine.h >/dev/null; then
1.227     pazsan    616:    OPTS2=''
                    617:    for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done
                    618:    OPTS="$OPTS2 $OPTS"
1.223     anton     619: else
                    620:   AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG])
1.207     anton     621: fi
1.206     anton     622: AC_SUBST(OPTS)
1.103     anton     623: 
                    624: AC_TYPE_OFF_T
                    625: AC_CHECK_SIZEOF(off_t)
                    626: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
                    627: ac_small_off_t=$?
                    628: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1       anton     629: 
1.109     anton     630: ENGINE_FLAGS=
                    631: AC_SUBST(ENGINE_FLAGS)
                    632: 
                    633: # Try if GCC understands -fno-gcse
                    634: 
                    635: AC_MSG_CHECKING([if $CC understands -fno-gcse])
                    636: CFLAGS_1="$CFLAGS"
                    637: CFLAGS="$CFLAGS -fno-gcse"
                    638: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
                    639: CFLAGS="$CFLAGS_1"
                    640: AC_MSG_RESULT($ac_nogcse)
                    641: 
                    642: # Try if GCC understands -fno-strict-aliasing
                    643: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
                    644: CFLAGS_1="$CFLAGS"
                    645: CFLAGS="$CFLAGS -fno-strict-aliasing"
                    646: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
                    647: CFLAGS="$CFLAGS_1"
                    648: AC_MSG_RESULT($ac_nostrictaliasing)
                    649: 
1.123     anton     650: # Try if GCC understands -fno-crossjumping
                    651: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88      pazsan    652: CFLAGS_1="$CFLAGS"
1.123     anton     653: CFLAGS="$CFLAGS -fno-crossjumping"
1.125     anton     654: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109     anton     655: CFLAGS="$CFLAGS_1"
1.124     pazsan    656: AC_MSG_RESULT($ac_nocrossjumping)
1.88      pazsan    657: 
1.137     pazsan    658: # Try if GCC understands -fno-reorder-blocks
                    659: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
                    660: CFLAGS_1="$CFLAGS"
                    661: CFLAGS="$CFLAGS -fno-reorder-blocks"
                    662: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
                    663: CFLAGS="$CFLAGS_1"
                    664: AC_MSG_RESULT($ac_noreorder_blocks)
                    665: 
1.189     anton     666: # Try if GCC understands -falign-labels=1
                    667: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
                    668: CFLAGS_1="$CFLAGS"
                    669: CFLAGS="$CFLAGS -falign-labels=1"
1.194     anton     670: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
1.189     anton     671: CFLAGS="$CFLAGS_1"
                    672: AC_MSG_RESULT($ac_align_labels)
                    673: 
1.193     anton     674: # Try if GCC understands -falign-loops=1
                    675: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
                    676: CFLAGS_1="$CFLAGS"
                    677: CFLAGS="$CFLAGS -falign-loops=1"
1.194     anton     678: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
1.193     anton     679: CFLAGS="$CFLAGS_1"
                    680: AC_MSG_RESULT($ac_align_loops)
                    681: 
                    682: # Try if GCC understands -falign-jumps=1
                    683: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
                    684: CFLAGS_1="$CFLAGS"
                    685: CFLAGS="$CFLAGS -falign-jumps=1"
1.194     anton     686: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
1.193     anton     687: CFLAGS="$CFLAGS_1"
                    688: AC_MSG_RESULT($ac_align_jumps)
                    689: 
1.271     anton     690: if test -z "$LIBTOOL_CC"
                    691: then
                    692:   LIBTOOL_CC="$CC"
                    693:   # Try if GCC understands -Wimplicit-function-declaration
                    694:   AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration])
                    695:   CFLAGS_1="$CFLAGS"
                    696:   CFLAGS="$CFLAGS -Wimplicit-function-declaration"
                    697:   AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",)
                    698:   CFLAGS="$CFLAGS_1"
                    699:   AC_MSG_RESULT($ac_align_jumps)
                    700: fi
                    701: AC_SUBST(LIBTOOL_CC)
                    702: 
                    703: 
                    704: 
1.130     anton     705: # Try if GCC understands __attribute__((unused))
                    706: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
                    707: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
                    708: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
                    709: AC_MSG_RESULT($MAYBE_UNUSED)
                    710: 
1.289     anton     711: # Try if GCC understands __thread
1.306     pazsan    712: AC_CACHE_CHECK([whether gcc understands '__thread'], [ac_cv_thread],
                    713:      [AC_TRY_COMPILE(,[extern __thread int foo;],
                    714:                         [ac_cv_thread=yes],
                    715:                         [ac_cv_thread=no])])
                    716: test x$ac_cv_thread = xyes && PER_THREAD='__thread'
1.289     anton     717: AC_DEFINE_UNQUOTED(PER_THREAD,$PER_THREAD,[storage class for thread-local variables])
                    718: 
1.195     anton     719: #try if m4 understands -s
                    720: AC_MSG_CHECKING([how to invoke m4])
1.196     anton     721: if m4 -s /dev/null >/dev/null 2>&1; then
1.195     anton     722:  M4="m4 -s"
                    723: else
                    724:  M4=m4
                    725: fi
                    726: AC_SUBST(M4)
                    727: AC_MSG_RESULT($M4)
                    728: 
1.215     anton     729: #echo "machine='$machine'"
1.191     anton     730: 
                    731: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.275     pazsan    732: if test x$EC_MODE = xfalse
                    733: then
1.278     dvdkhlng  734:   AS_IF([test -f $srcdir/arch/$machine/asm.fs],
                    735:         [asm_fs=arch/$machine/asm.fs])
1.275     pazsan    736: fi
1.61      anton     737: AC_SUBST(asm_fs)
                    738: 
1.191     anton     739: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.275     pazsan    740: if test x$EC_MODE = xfalse
                    741: then
1.278     dvdkhlng  742:   AS_IF([test -f $srcdir/arch/$machine/disasm.fs],
                    743:        [disasm_fs=arch/$machine/disasm.fs])
1.275     pazsan    744: fi
1.61      anton     745: AC_SUBST(disasm_fs)
                    746: 
1.116     anton     747: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114     anton     748: 
1.39      pazsan    749: case "$host_os" in
1.157     pazsan    750:        *win32*)
                    751:                # !!!FIXME!!! problems with cygwin and ';' as path separator
1.108     anton     752:                DIRSEP="\\\\"
1.127     anton     753:                PATHSEP=";"
1.142     anton     754:                #we want the builtins of command.com/cmd.exe and its
                    755:                # handling of .com files.
                    756:                #$COMSPEC contains the name of the Windows shell;
                    757:                # the ./ is there, because the bash does not recognize
                    758:                # absolute DOS filenames
                    759:                DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39      pazsan    760:                ;;
1.97      anton     761:        *darwin*)
                    762:                #Darwin uses some funny preprocessor by default; eliminate it:
1.127     anton     763:                AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120     anton     764:                CFLAGS="$CFLAGS -no-cpp-precomp"
1.98      anton     765:                DIRSEP="/"
1.127     anton     766:                PATHSEP=":"
1.141     anton     767:                DEFAULTSYSTEMPREFIX=""
1.243     anton     768:                 #the following magic value was suggested by
                    769:                 #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
                    770:                 AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
1.98      anton     771:                ;;
1.246     pazsan    772:        *linux*)
                    773:                DIRSEP="/"
                    774:                PATHSEP=":"
                    775:                DEFAULTSYSTEMPREFIX=""
1.250     anton     776:                if test -z "$LTDL_LIBRARY_PATH" -a "$wordsize" = 64; then
1.253     pazsan    777:                   LTDL_LIBRARY_PATH=`/sbin/ldconfig -p |tail -n +2 |sed 's/^.* => //'|sed 's|/[[^/]]*$||'| grep 64 | sort -u | tr '\n' : | sed -e 's/:$//'`
1.246     pazsan    778:                fi
                    779:                ;;
1.39      pazsan    780:        *)
1.88      pazsan    781:                DIRSEP="/"
1.127     anton     782:                PATHSEP=":"
1.141     anton     783:                DEFAULTSYSTEMPREFIX=""
1.39      pazsan    784:                ;;
                    785: esac
1.88      pazsan    786: AC_SUBST(DIRSEP)
1.89      pazsan    787: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127     anton     788: AC_SUBST(PATHSEP)
                    789: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141     anton     790: AC_SUBST(DEFAULTSYSTEMPREFIX)
                    791: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.250     anton     792: if test -n "$LTDL_LIBRARY_PATH"; then
                    793:    AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux])
                    794: fi                                                                
1.39      pazsan    795: 
1.170     anton     796: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
1.172     anton     797: #This magic incantation  seems to be completely undocumented.
                    798: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
1.170     anton     799: 
1.1       anton     800: dnl Now a little support for DOS/DJGCC
1.276     pazsan    801: GFORTHFAST_EXE="$GFORTH_EXE"
                    802: GFORTHITC_EXE="$GFORTH_EXE"
                    803: GFORTHDITC_EXE="$GFORTH_EXE"
1.30      pazsan    804: AC_SUBST(GFORTH_EXE)
1.48      anton     805: AC_SUBST(GFORTHFAST_EXE)
1.83      anton     806: AC_SUBST(GFORTHITC_EXE)
1.30      pazsan    807: AC_SUBST(GFORTHDITC_EXE)
1.27      anton     808: 
                    809: AC_SUBST(FORTHSIZES)
1.24      anton     810: 
1.104     anton     811: dnl if test "$PEEPHOLE" = "yes"
                    812: dnl then
                    813: dnl    PEEPHOLEFLAG="true"
                    814: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
                    815: dnl else
                    816: dnl    PEEPHOLEFLAG="false"
                    817: dnl fi
                    818: PEEPHOLEFLAG="true"
1.79      pazsan    819: AC_SUBST(PEEPHOLEFLAG)
                    820: 
1.1       anton     821: dnl copy commands for systems that don't have links
1.29      pazsan    822: AC_SUBST(LINK_KERNL)
                    823: LINK_KERNL=""
1.1       anton     824: 
                    825: #if test $host_os=dos
                    826: #then
                    827: #  echo Configuring for DOS!!!
                    828: #  MAKE_EXE="coff2exe gforth"
1.29      pazsan    829: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1       anton     830: #fi
                    831: 
                    832: dnl the following macro produces a warning with autoconf-2.1
                    833: AC_C_BIGENDIAN
1.23      pazsan    834: AC_SUBST(KERNEL)
1.1       anton     835: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
1.256     pazsan    836: if test $ac_cv_c_bigendian != no; then
1.1       anton     837:   bytesex=b
1.23      pazsan    838:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1       anton     839: else
                    840:   bytesex=l
1.23      pazsan    841:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1       anton     842: fi
                    843: 
1.91      anton     844: #check how to do asm(".skip 16")
1.169     anton     845: #echo "CFLAGS=$CFLAGS"
                    846: #echo "ac_link=$ac_link"
1.92      anton     847: AC_MSG_CHECKING([if and how we can waste code space])
1.279     dvdkhlng  848: if test -z "$skipcode" && test x$cross_compiling = xyes; then
                    849:    # we cannot perform the AC_TRY_RUN check when cross-compiling.  
                    850:    skipcode=no
                    851:    AC_MSG_RESULT([$skipcode, can't run checks since cross-compiling])
                    852: elif test -z "$skipcode"; then
1.148     anton     853:     skipcode=no
                    854:     CFLAGS_1="$CFLAGS"
                    855:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136     anton     856:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
                    857:     do
1.91      anton     858:        AC_TRY_RUN(
1.136     anton     859: [int foo(int,int,int);
1.91      anton     860: main()
                    861: {
1.136     anton     862:   exit(foo(0,0,0)!=16);
1.91      anton     863: }
1.136     anton     864: int foo(int x, int y, int z)
1.91      anton     865: {
1.136     anton     866:   static void *labels[]={&&label1, &&label2};
1.91      anton     867:   if (x) {
1.136     anton     868:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91      anton     869:   label1:
1.148     anton     870:     asm("$i"); /* or ".space 16" or somesuch */
1.136     anton     871:   label2: ;
                    872:   }
                    873:   {
                    874:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
                    875:   return labels[1]-labels[0];
1.91      anton     876:   }
1.136     anton     877: }]
1.92      anton     878:        ,skipcode=$i; break
                    879:        ,,)
1.136     anton     880:     done
1.148     anton     881:     CFLAGS=$CFLAGS_1
1.136     anton     882: fi
1.92      anton     883: AC_MSG_RESULT($skipcode)
                    884: if test "$skipcode" = no
                    885: then 
1.136     anton     886:     if test -z $no_dynamic_default; then
                    887:        no_dynamic_default=1
                    888:        AC_MSG_WARN(Disabling default dynamic native code generation)
                    889:     fi
1.280     dvdkhlng  890:     AC_DEFINE_UNQUOTED(SKIP16,asm(""),statement for skipping 16 bytes)
1.92      anton     891: else
                    892:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
                    893: fi
1.91      anton     894: 
1.174     anton     895: AC_MSG_CHECKING([if and how we can do comments in asm statements])
                    896: #the point here is to get asm statements that look different to
                    897: #gcc's "optimizer"
                    898: if test -z "$asmcomment"; then
                    899:     asmcomment=no
                    900:     CFLAGS_1="$CFLAGS"
                    901:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.176     anton     902:     for i in '"# "' '"! "' '"; "'; do
1.174     anton     903:        AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
                    904:     done
                    905:     CFLAGS=$CFLAGS_1
                    906: fi
                    907: AC_MSG_RESULT($asmcomment)
                    908: if test "$asmcomment" != no
                    909: then 
                    910:     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
                    911: fi
                    912: 
1.136     anton     913: test "$no_dynamic_default" || no_dynamic_default=0
1.92      anton     914: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91      anton     915: 
1.1       anton     916: dnl Checks for programs.
                    917: AC_PROG_LN_S
1.95      anton     918: AC_PROG_INSTALL
1.163     pazsan    919: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
1.1       anton     920: 
1.288     anton     921: dnl check for the presence of Emacs
                    922: AC_CHECK_PROGS(EMACS,emacs xemacs)
                    923: test -n "$EMACS" && gforth_elc=gforth.elc
                    924: AC_SUBST(gforth_elc)
                    925: 
1.198     anton     926: dnl MacOS X has a libtool that does something else
1.264     pazsan    927: AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
1.198     anton     928: 
1.269     anton     929: dnl Checks for library functions
                    930: dnl This check is just for making later checks link with libm.
                    931: dnl using sin here is no good idea since it is built-into gcc and typechecked
                    932: AC_CHECK_LIB(m,asin)
1.305     pazsan    933: AC_CHECK_LIB(ltdl,lt_dlinit)
                    934: dnl ,LIB_SUFFIX=.la,LIB_SUFFIX=.so)
                    935: if test "x$ac_cv_lib_ltdl_lt_dlinit" = xyes; then
                    936:   LIB_SUFFIX=.la
                    937: else
                    938:   LIB_SUFFIX=.so
                    939: fi
1.304     pazsan    940: AC_SUBST(LIB_SUFFIX)
1.295     pazsan    941: AC_CHECK_LIB(rt,clock_gettime)
1.269     anton     942: 
                    943: if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
1.258     anton     944:   build_libcc_named=build-libcc-named
                    945: else
                    946:   build_libcc_named=""
1.274     anton     947:   AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries])
1.258     anton     948: fi
                    949: AC_SUBST(build_libcc_named)
                    950: 
1.274     anton     951: 
                    952: if test -z "$GNU_LIBTOOL"; then
                    953:   AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.])
                    954:   AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.])
                    955:   GNU_LIBTOOL=libtool
                    956: fi
                    957: 
1.235     anton     958: #check for libffi 2.x
1.237     anton     959: AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
                    960: if test -z "$FFI_H_NAME"; then
                    961:   AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
                    962: fi
                    963: AC_SUBST(FFI_H_NAME)
1.286     pazsan    964: AC_CHECK_LIB(ffi,ffi_call,LIBS="$LIBS")
1.241     anton     965: if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
1.235     anton     966: then
                    967:   LIBFFIFLAG="true"
1.236     anton     968:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs"
1.235     anton     969: else
                    970:   LIBFFIFLAG="false"
                    971: fi
                    972: #check for ffcall libraries
                    973: #unfortunately, these four calls are separated out into a library each.
1.286     pazsan    974: AC_CHECK_LIB(avcall,__builtin_avcall,LIBS="$LIBS")
1.234     pazsan    975: dnl AC_CHECK_LIB(callback,__vacall_r)
                    976: dnl AC_CHECK_LIB(vacall,vacall)
                    977: dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
1.235     anton     978: if test $ac_cv_lib_avcall___builtin_avcall = yes; then
                    979:   FFCALLFLAG="true"
1.236     anton     980:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs"
1.235     anton     981: else
                    982:   FFCALLFLAG="false"
                    983: fi
                    984: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then
                    985:   AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries])
                    986: fi
                    987: AC_SUBST(LIBFFIFLAG)
                    988: AC_SUBST(FFCALLFLAG)
1.236     anton     989: AC_SUBST(LIBCC_BUILD_SRC)
1.32      pazsan    990: if test "$host_os" != "nextstep3"
                    991: then
                    992:        AC_FUNC_MEMCMP
                    993: fi
1.300     pazsan    994: AC_REPLACE_FUNCS(memmove strtoul pow10 sincos strerror strsignal atanh)
1.97      anton     995: AC_FUNC_FSEEKO
1.296     pazsan    996: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep clock_gettime)
1.111     anton     997: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19      anton     998: AC_DECL_SYS_SIGLIST
1.138     anton     999: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90      anton    1000: AC_CHECK_FUNCS(expm1 log1p)
                   1001: AC_REPLACE_FUNCS(rint ecvt)
1.1       anton    1002: dnl No check for select, because our replacement is no good under
                   1003: dnl anything but DOS
1.277     pazsan   1004: AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h endian.h)
1.63      anton    1005: AC_FUNC_FNMATCH
1.87      pazsan   1006: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.255     anton    1007: AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth)
1.34      anton    1008: AM_PATH_LISPDIR
1.1       anton    1009: 
1.183     pazsan   1010: kernel_fi=kernl${vwordsize}${bytesex}.fi
1.178     pazsan   1011: include_fi=kernl${wordsize}${bytesex}${EC}.fi
1.23      pazsan   1012: AC_SUBST(kernel_fi)
1.178     pazsan   1013: AC_SUBST(include_fi)
1.50      jwilke   1014: 
1.292     pazsan   1015: # Find installed Gforth
                   1016: AC_MSG_CHECKING([for gforth])
                   1017: GFORTH="`cd / && which gforth 2>/dev/null`"
                   1018: #the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
                   1019: (cd / && $GFORTH -e bye >/dev/null 2>/dev/null  && test "$srcdir" = ".") || GFORTH=""
                   1020: if test -z "$GFORTH"; then
                   1021:   PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
1.293     pazsan   1022:   GFORTHKER='echo "You need to configure with a gforth in \$PATH to build this part" && false'
1.292     pazsan   1023:   kernel_anti_dependence=''
                   1024: else
                   1025:   GFORTH_FI=`cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`
                   1026:   PREFORTH="$GFORTH -i $GFORTH_FI" ;
1.294     pazsan   1027:   KERNLX_FI1=`echo $GFORTH_FI | sed -e s/lib/share/g -e s/gforth.fi/kernl*.fi/g`
                   1028:   KERNLX_FI2=`echo $GFORTH_FI | sed -e s/gforth.fi/kernl*.fi/g`
                   1029:   test -f $KERNLX_FI1 && KERNLX_FI=$KERNLX_FI1
                   1030:   test -f $KERNLX_FI2 && KERNLX_FI=$KERNLX_FI2
1.293     pazsan   1031:   GFORTHKER="$GFORTH -i `echo $KERNLX_FI`" ;
1.292     pazsan   1032:   kernel_anti_dependence='$(kernel_fi)'
                   1033: fi
                   1034: AC_SUBST(PREFORTH)
1.293     pazsan   1035: AC_SUBST(GFORTHKER)
1.292     pazsan   1036: AC_SUBST(kernel_anti_dependence)
                   1037: AC_MSG_RESULT($PREFORTH)
                   1038: 
1.76      anton    1039: #this breaks bindists
                   1040: #dnl replace srource directory by absolute value
                   1041: #if test $srcdir = "."; then srcdir=`pwd` 
                   1042: #fi
1.8       anton    1043: 
1.34      anton    1044: AC_SUBST(machine)
1.95      anton    1045: AC_CONFIG_FILES([
1.31      anton    1046: Makefile
1.45      pazsan   1047: Makedist
1.43      anton    1048: gforthmi
1.80      anton    1049: vmgen
1.79      pazsan   1050: machpc.fs
1.159     pazsan   1051: envos.fs
1.223     anton    1052: preforth
1.303     pazsan   1053: libforth
1.293     pazsan   1054: gforthker
1.35      anton    1055: engine/Makefile
1.188     anton    1056: engine/libcc.h
1.161     pazsan   1057: doc/version.texi
                   1058: build-ec ])
1.95      anton    1059: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43      anton    1060: chmod +x gforthmi
1.80      anton    1061: chmod +x vmgen
1.162     pazsan   1062: chmod +x build-ec
1.223     anton    1063: chmod +x preforth
1.303     pazsan   1064: chmod +x libforth
1.293     pazsan   1065: chmod +x gforthker
1.188     anton    1066: test -d kernel||mkdir kernel
1.258     anton    1067: if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi
1.188     anton    1068: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
1.262     anton    1069: $srcdir/mkinstalldirs arch/$machine
                   1070: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],
                   1071: [PACKAGE_VERSION=$PACKAGE_VERSION
                   1072:  machine=$machine])
1.95      anton    1073: AC_OUTPUT

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