Annotation of gforth/configure.in, revision 1.290

1.1       anton       1: dnl Process this file with autoconf to produce a configure script.
1.20      anton       2: 
1.287     anton       3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009,2010 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
1.285     pazsan     23: AC_INIT([gforth],[0.7.9-20101227],[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!
1.285     pazsan     28: UPDATED="December 27, 2010"
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 "$withval" = "yes"; then DEBUGFLAG=-g; fi)
1.122     pazsan     70: 
1.185     pazsan     71: GCC_LD="\$(GCC)"
                     72: EC_MODE="false"
1.275     pazsan     73: NO_EC=""
1.185     pazsan     74: EC=""
1.204     anton      75: engine2='engine2$(OPT).o'
                     76: engine_fast2='engine-fast2$(OPT).o'
1.185     pazsan     77: no_dynamic=""
                     78: image_i=""
                     79: signals_o="io.o signals.o"
                     80: 
1.275     pazsan     81: AC_CANONICAL_HOST
1.182     pazsan     82: AC_ARG_WITH(ec,
                     83:        AC_HELP_STRING([--with-ec=<arch>],
1.168     pazsan     84:                        [  Build gforth for systems without OS.]),
1.182     pazsan     85: [if test "$withval" = "no"; then
                     86:   echo "defining hosted system"
                     87: else
                     88:   echo "defining standalone system (${withval})"
1.168     pazsan     89:   AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
1.167     pazsan     90:   EC_MODE="true"
1.178     pazsan     91:   EC="-ec"
1.275     pazsan     92:   NO_EC="#"
1.178     pazsan     93:   engine2=""
                     94:   engine_fast2=""
                     95:   no_dynamic="-DNO_DYNAMIC"
                     96:   image_i="image.i"
1.182     pazsan     97:   if test "$withval" != "yes"; then
                     98:     signals_o="io-${withval}.o"
                     99:   else
                    100:     signals_o="io.o"
                    101:   fi
1.275     pazsan    102:   if test -f "arch/$host_cpu/${withval}/config.sh"; then
                    103:     source "arch/$host_cpu/${withval}/config.sh"
                    104:   fi
1.183     pazsan    105:   GCC_PATH=$(which $CC)
                    106:   LIB_PATH=${GCC_PATH%/*/*}
                    107:   GCC_LD="\$(LD)"
1.184     pazsan    108:   platform=${withval}
1.182     pazsan    109: fi])
1.167     pazsan    110: 
1.290   ! pazsan    111: AC_ARG_WITH(cross,
        !           112:        AC_HELP_STRING([--with-cross=<arch>],
        !           113:                        [  Build gforth using a cross compiler.]),
        !           114: [if test "$withval" = "no"; then
        !           115:   echo "defining hosted system"
        !           116: else
        !           117:   echo "defining cross compiled system (${withval})"
        !           118:   if test -f "arch/$host_cpu/${withval}/config.sh"; then
        !           119:     source "arch/$host_cpu/${withval}/config.sh"
        !           120:   fi
        !           121:   GCC_PATH=$(which $CC)
        !           122:   LIB_PATH=${GCC_PATH%/*/*}
        !           123:   GCC_LD="\$(LD)"
        !           124:   platform=${withval}
        !           125: fi])
        !           126: 
1.104     anton     127: #variables mentioned in INSTALL
1.203     anton     128: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
1.104     anton     129: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
1.203     anton     130: 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     131: 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     132: 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     133: AC_ARG_VAR(LIBCC_BUILD_SRC, [(Additional) libcc interface source files that should be processed on building and installation (default none)])
1.173     anton     134: 
1.104     anton     135: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
1.183     pazsan    136: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
1.104     anton     137: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
                    138: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
                    139: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
                    140: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
                    141: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
                    142: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
1.254     anton     143: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
                    144: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
1.123     anton     145: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
                    146: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
1.190     anton     147: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
1.166     anton     148: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
1.174     anton     149: AC_ARG_VAR(asmcomment, [assembler comment start string])
1.175     anton     150: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
1.250     anton     151: AC_ARG_VAR(LTDL_LIBRARY_PATH, [additional directories for libltdl (for some 64-bit platforms)])
1.82      anton     152: 
1.96      anton     153: #set up feature test macros, so the tests get them right:
                    154: # turn on all POSIX, SUSv3, and GNU features if available
1.97      anton     155: AC_GNU_SOURCE
                    156: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
                    157: 
                    158: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
                    159: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
                    160: dnl but not for _XOPEN_SOURCE)
                    161: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
                    162: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
                    163: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96      anton     164: # turn on large file support with 64-bit off_t where available
1.105     anton     165: AC_SYS_LARGEFILE
                    166: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
                    167: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96      anton     168: 
1.82      anton     169: #currently we force direct threading this way.  Eventually we should
                    170: #setup in the arch and engine files right
1.16      anton     171: 
1.15      pazsan    172: AC_PROG_CC
                    173: 
1.92      anton     174: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9       pazsan    175: 
1.190     anton     176: AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
                    177: test x$condbranch_opt = x && 
1.238     anton     178: if ($CC -v 2>&1 |grep 'gcc version 3' >/dev/null); then
1.190     anton     179:    condbranch_opt=0
                    180: else
                    181:    condbranch_opt=1
                    182: fi
                    183: AC_MSG_RESULT($condbranch_opt)
                    184: AC_SUBST(condbranch_opt)
                    185: 
1.15      pazsan    186: AC_SUBST(CC)
1.183     pazsan    187: AC_SUBST(GCC_LD)
1.9       pazsan    188: AC_SUBST(DEBUGFLAG)
1.178     pazsan    189: AC_SUBST(EC)
1.275     pazsan    190: AC_SUBST(NO_EC)
1.167     pazsan    191: AC_SUBST(EC_MODE)
1.178     pazsan    192: AC_SUBST(engine2)
                    193: AC_SUBST(engine_fast2)
                    194: AC_SUBST(no_dynamic)
                    195: AC_SUBST(image_i)
1.179     pazsan    196: AC_SUBST(signals_o)
1.7       anton     197: 
1.174     anton     198: #this is used to disable some (not generally essential) part of the
                    199: #Makefile that some makes don't grok.  It would be better to test for
                    200: #this specific Makefile feature than the make version.
1.128     pazsan    201: AC_MSG_CHECKING(make type)
1.174     anton     202: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
1.128     pazsan    203: GNUMAKE='#'
                    204: test "$make_type" = "GNU Make" && GNUMAKE=''
                    205: AC_MSG_RESULT($make_type)
                    206: AC_SUBST(GNUMAKE)
                    207: 
1.50      jwilke    208: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
                    209: OLDLDFLAGS=$LDFLAGS
                    210: LDFLAGS="$LDFLAGS -export-dynamic"
1.69      anton     211: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
                    212: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
                    213: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50      jwilke    214: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
                    215: AC_MSG_RESULT($ac_export_dynamic)
                    216: 
1.1       anton     217: #terminology is a bit unusual here: The host is the system on which
                    218: #gforth will run; the system on which configure will run is the `build'
                    219: case "$host_cpu" in
1.136     anton     220:        arm*)
                    221:                machine=arm
                    222:                CFLAGS="$CFLAGS -fomit-frame-pointer"
1.184     pazsan    223:                if test x$platform = xnxt; then
1.183     pazsan    224:                   CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
                    225:                fi
1.175     anton     226:                if test -z $arm_cacheflush; then
1.212     dvdkhlng  227:                   case "$host_os" in
                    228:                     *linux*)
1.260     anton     229:                        AC_LIBOBJ(../arch/arm/cacheflush-linux) 
1.212     dvdkhlng  230:                        ;;
                    231:                     *)   
                    232:                        no_dynamic_default=1
1.260     anton     233:                        AC_LIBOBJ(../arch/arm/cacheflush0)
1.212     dvdkhlng  234:                        AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    235:                        ;;
                    236:                    esac
1.260     anton     237:                 else
                    238:                    AC_LIBOBJ(../$arm_cacheflush)
                    239:                    test $srcdir = . || AC_MSG_WARN([setting arm_cacheflush requires building in the source directory])
1.136     anton     240:                fi
1.177     anton     241:                 #longer skipcodes lead to problems on ARM, and it uses
                    242:                 #only 4-byte alignment anyway
                    243:                test "$skipcode" || skipcode="nop"
1.136     anton     244:                ;;
1.1       anton     245:        hppa*)
1.34      anton     246:                machine=hppa
1.87      pazsan    247:                AC_LIBOBJ(../arch/hppa/cache)
1.134     anton     248:                #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
                    249:                LDFLAGS="$LDFLAGS -Xlinker -N"
1.47      anton     250:                LIBS="$LIBS -L/lib/pa1.1/"
1.1       anton     251:                ;;
                    252:        sparc*)
1.34      anton     253:                machine=sparc
1.1       anton     254:                ;;
1.31      anton     255:        i386)
1.34      anton     256:                machine=386
1.189     anton     257:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
1.31      anton     258:                ;;
                    259:        i486)
1.34      anton     260:                machine=386
1.282     dvdkhlng  261:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
                    262:                CFLAGS_1="$CFLAGS"
                    263:                CFLAGS="$CFLAGS -march=i486"
                    264:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
                    265:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
1.31      anton     266:                ;;
1.77      anton     267:        i*86)
1.34      anton     268:                machine=386
1.189     anton     269:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
1.56      pazsan    270:                CFLAGS_1="$CFLAGS"
1.282     dvdkhlng  271:                CFLAGS="$CFLAGS -march=pentium -mtune=generic"
                    272:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -march=pentium")
1.56      pazsan    273:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.282     dvdkhlng  274:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
1.1       anton     275:                ;;
1.133     anton     276:        x86_64)
1.192     pazsan    277:                case $CC
                    278:                in
                    279:                    *-m32*)
                    280:                        machine=386
                    281:                        CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
                    282:                        CFLAGS_1="$CFLAGS"
                    283:                        CFLAGS="$CFLAGS -march=athlon64"
                    284:                        ;;
                    285:                    *)
                    286:                        machine=amd64
                    287:                        ;;
                    288:                esac
1.133     anton     289:                ;;
1.136     anton     290:        ia64*)
                    291:                machine=ia64
                    292:                AC_LIBOBJ(../arch/ia64/flush_icache_block)
                    293:                test "$skipcode" || skipcode="nop.i 0"
                    294:                #".skip 16" passes the test below,
                    295:                # but gives an assembler error in engine
                    296:                ;;
1.26      pazsan    297:         m68k)
1.34      anton     298:                machine=m68k
1.32      pazsan    299:                CFLAGS="$CFLAGS -fomit-frame-pointer"
                    300:                if test "$host_os" = "nextstep3"
                    301:                then
1.87      pazsan    302:                        AC_LIBOBJ(termios)
1.32      pazsan    303:                fi
1.26      pazsan    304:                ;;
1.1       anton     305:        mips*)
1.34      anton     306:                machine=mips
1.281     dvdkhlng  307:                AC_LIBOBJ(../arch/mips/check_prim) 
1.92      anton     308:                #dynamic native code has the following problems on MIPS:
                    309:                #
                    310:                #1) J/JAL seems relocatable, but is are only
                    311:                #relocatable within a 256MB-segment.  While we try to
                    312:                #get the linker to arrange this, there is no guarantee
                    313:                #that this will succeed (and if the user uses a lot of
                    314:                #memory, it is likely to fail).
                    315:                #
                    316:                #2) The way we generate dynamic native code may
                    317:                #violate MIPS architectural restrictions (in
                    318:                #particular, the delay slots of LW, MFLO, etc.)
                    319:                #
                    320:                #Therefore we disable dynamic native code by default:
1.255     anton     321:                if test -z "$no_dynamic_default"; then
1.136     anton     322:                    no_dynamic_default=1
                    323:                    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
                    324:                fi
1.1       anton     325:                ;;
1.9       pazsan    326:        alpha*)
1.34      anton     327:                machine=alpha
1.58      anton     328:                #full IEEE FP support for more uniformity across platforms:
                    329:                CFLAGS="$CFLAGS -mieee"
1.9       pazsan    330:                ;;
1.69      anton     331:        power*|rs6000)
1.34      anton     332:                machine=power
1.138     anton     333:                AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103     anton     334:                #long long is broken on (at least) gcc-2.95.* for PPC
1.165     anton     335:                test x$ac_cv_sizeof_long_long = x && 
1.238     anton     336:                ($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) &&
1.263     anton     337:                      ac_cv_sizeof_long_long=0
1.203     anton     338:                 #The only architecture with enough callee-saved registers
                    339:                 test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
                    340:                 #or use 2, hardly slower at run-time and starts up faster
1.263     anton     341: 
                    342:                 #the skipcode that is normally selected below does not
                    343:                 #work with gcc-3.[34]
                    344:                test "$skipcode" || skipcode="nop\nnop\nnop\nnop"
1.31      anton     345:                ;;
1.1       anton     346:        *)
1.92      anton     347:                AC_MSG_WARN([Using a generic machine description])
                    348:                AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
                    349:                AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34      anton     350:                machine=generic
1.97      anton     351:                #I-cache flushing would be needed for dynamic code generation
1.136     anton     352:                if test -z $no_dynamic_default; then
                    353:                    no_dynamic_default=1
                    354:                    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    355:                fi
1.1       anton     356: esac
1.10      anton     357: AC_SUBST(host)
1.151     anton     358: 
1.184     pazsan    359: MAKEINC=""
1.276     pazsan    360: GFORTH_EXE="true"
1.184     pazsan    361: 
                    362: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
1.183     pazsan    363: if test x$EC_MODE = xtrue
                    364: then
1.184     pazsan    365:        echo "Check for arch/$machine/$platform/gforth.ld"
                    366:        if test -f arch/$machine/$platform/gforth.ld
1.183     pazsan    367:        then
1.184     pazsan    368:                LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
                    369:                if test x$platform = xnxt; then
1.183     pazsan    370:                        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 $LIBS"
                    371:                fi
                    372:        fi
1.184     pazsan    373:        if test -f arch/$machine/$platform/make.inc
                    374:        then
                    375:                MAKEINC="include ../arch/$machine/$platform/make.inc"
1.276     pazsan    376:                GFORTH_EXE="\$(MAKE) -f arch/$machine/$platform/make.inc \$@.exe"
1.184     pazsan    377:        fi
1.183     pazsan    378: fi
1.184     pazsan    379: AC_SUBST(MAKEINC)
1.183     pazsan    380: 
1.203     anton     381: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
                    382: 
                    383: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
                    384: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
                    385:                   [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
1.151     anton     386: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
                    387: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
                    388:                   [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146     pazsan    389: 
1.173     anton     390: test x$GCC_PR15242_WORKAROUND = x ||
                    391: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
                    392:                    [force (1) or forbid (0) use of a workaround for a gcc performance bug])
                    393: 
1.103     anton     394: dnl the following macro produces a warning with autoconf-2.1
                    395: AC_CHECK_SIZEOF(char *)
                    396: case "$ac_cv_sizeof_char_p" in
                    397:   2)
                    398:     wordsize=16
                    399:     ;;
                    400:   4)
                    401:     wordsize=32
                    402:     ;;
                    403:   8)
                    404:     wordsize=64
                    405:     ;;
                    406: esac
                    407: 
1.183     pazsan    408: AC_CHECK_SIZEOF(void *)
                    409: case "$ac_cv_sizeof_void_p" in
                    410:   2)
                    411:     vwordsize=16
                    412:     ;;
                    413:   4)
                    414:     vwordsize=32
                    415:     ;;
                    416:   8)
                    417:     vwordsize=64
                    418:     ;;
                    419: esac
                    420: 
1.103     anton     421: AC_CHECK_SIZEOF(char)
                    422: AC_CHECK_SIZEOF(short)
                    423: AC_CHECK_SIZEOF(int)
                    424: AC_CHECK_SIZEOF(long)
                    425: AC_CHECK_SIZEOF(long long)
                    426: AC_CHECK_SIZEOF(intptr_t)
                    427: AC_CHECK_SIZEOF(int128_t)
1.144     pazsan    428: AC_CHECK_SIZEOF(uint128_t)
1.103     anton     429: 
                    430: AC_MSG_CHECKING([for a C type for cells])
                    431: ac_cv_int_type_cell=none
                    432: case "$ac_cv_sizeof_char_p" in
                    433:   $ac_cv_sizeof_int)
                    434:     ac_cv_int_type_cell=int
                    435:     ;;
                    436:   $ac_cv_sizeof_short)
                    437:     ac_cv_int_type_cell=short
                    438:     ;;
                    439:   $ac_cv_sizeof_char)
                    440:     ac_cv_int_type_cell=char
                    441:     ;;
                    442:   $ac_cv_sizeof_long)
                    443:     ac_cv_int_type_cell=long
                    444:     ;;
                    445:   $ac_cv_sizeof_long_long)
                    446:     ac_cv_int_type_cell="long long"
                    447:     ;;
                    448:   $ac_cv_sizeof_intptr_t)
                    449:     ac_cv_int_type_cell="intptr_t"
                    450:     ;;
                    451: esac
                    452: AC_MSG_RESULT($ac_cv_int_type_cell)
                    453: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
                    454: 
1.153     pazsan    455: AC_MSG_CHECKING([for a C type for wydes])
                    456: ac_cv_wyde_type_cell=none
                    457: case 2 in
                    458:   $ac_cv_sizeof_int)
                    459:     ac_cv_wyde_type_cell=int
                    460:     ;;
                    461:   $ac_cv_sizeof_short)
                    462:     ac_cv_wyde_type_cell=short
                    463:     ;;
                    464:   $ac_cv_sizeof_char)
                    465:     ac_cv_wyde_type_cell=char
                    466:     ;;
                    467:   $ac_cv_sizeof_long)
                    468:     ac_cv_wyde_type_cell=long
                    469:     ;;
                    470:   $ac_cv_sizeof_long_long)
                    471:     ac_cv_wyde_type_cell="long long"
                    472:     ;;
                    473:   $ac_cv_sizeof_intptr_t)
                    474:     ac_cv_wyde_type_cell="intptr_t"
                    475:     ;;
                    476: esac
                    477: AC_MSG_RESULT($ac_cv_wyde_type_cell)
                    478: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
                    479: 
                    480: AC_MSG_CHECKING([for a C type for tetrabytes])
                    481: ac_cv_tetrabyte_type_cell=none
                    482: case 4 in
                    483:   $ac_cv_sizeof_int)
                    484:     ac_cv_tetrabyte_type_cell=int
                    485:     ;;
                    486:   $ac_cv_sizeof_short)
                    487:     ac_cv_tetrabyte_type_cell=short
                    488:     ;;
                    489:   $ac_cv_sizeof_char)
                    490:     ac_cv_tetrabyte_type_cell=char
                    491:     ;;
                    492:   $ac_cv_sizeof_long)
                    493:     ac_cv_tetrabyte_type_cell=long
                    494:     ;;
                    495:   $ac_cv_sizeof_long_long)
                    496:     ac_cv_tetrabyte_type_cell="long long"
                    497:     ;;
                    498:   $ac_cv_sizeof_intptr_t)
                    499:     ac_cv_tetrabyte_type_cell="intptr_t"
                    500:     ;;
                    501: esac
                    502: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
                    503: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
                    504: 
1.277     pazsan    505: AC_MSG_CHECKING([for a C type for octabytes])
                    506: ac_cv_octabyte_type_cell=none
                    507: case 8 in
                    508:   $ac_cv_sizeof_int)
                    509:     ac_cv_octabyte_type_cell=int
                    510:     ;;
                    511:   $ac_cv_sizeof_short)
                    512:     ac_cv_octabyte_type_cell=short
                    513:     ;;
                    514:   $ac_cv_sizeof_char)
                    515:     ac_cv_octabyte_type_cell=char
                    516:     ;;
                    517:   $ac_cv_sizeof_long)
                    518:     ac_cv_octabyte_type_cell=long
                    519:     ;;
                    520:   $ac_cv_sizeof_long_long)
                    521:     ac_cv_octabyte_type_cell="long long"
                    522:     ;;
                    523:   $ac_cv_sizeof_intptr_t)
                    524:     ac_cv_octabyte_type_cell="intptr_t"
                    525:     ;;
                    526: esac
                    527: AC_MSG_RESULT($ac_cv_octabyte_type_cell)
                    528: AC_DEFINE_UNQUOTED(OCTABYTE_TYPE,$ac_cv_octabyte_type_cell,[an integer type that is 8 bytes long])
                    529: 
1.103     anton     530: AC_MSG_CHECKING([for a C type for double-cells])
                    531: ac_cv_int_type_double_cell=none
                    532: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    533:   $ac_cv_sizeof_short)
                    534:     ac_cv_int_type_double_cell=short
                    535:     ;;
                    536:   $ac_cv_sizeof_int)
                    537:     ac_cv_int_type_double_cell=int
                    538:     ;;
                    539:   $ac_cv_sizeof_long)
                    540:     ac_cv_int_type_double_cell=long
                    541:     ;;
                    542:   $ac_cv_sizeof_long_long)
                    543:     ac_cv_int_type_double_cell="long long"
                    544:     ;;
                    545:   $ac_cv_sizeof_intptr_t)
                    546:     ac_cv_int_type_double_cell="intptr_t"
                    547:     ;;
1.205     anton     548:   $ac_cv_sizeof_int128_t)
1.103     anton     549:     ac_cv_int_type_double_cell="int128_t"
                    550:     ;;
                    551: esac
                    552: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144     pazsan    553: 
                    554: AC_MSG_CHECKING([for a C type for unsigned double-cells])
                    555: ac_cv_int_type_double_ucell=none
                    556: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    557:   $ac_cv_sizeof_short)
                    558:     ac_cv_int_type_double_ucell="unsigned short"
                    559:     ;;
                    560:   $ac_cv_sizeof_int)
                    561:     ac_cv_int_type_double_ucell="unsigned int"
                    562:     ;;
                    563:   $ac_cv_sizeof_long)
                    564:     ac_cv_int_type_double_ucell="unsigned long"
                    565:     ;;
                    566:   $ac_cv_sizeof_long_long)
                    567:     ac_cv_int_type_double_ucell="unsigned long long"
                    568:     ;;
                    569:   $ac_cv_sizeof_intptr_t)
                    570:     ac_cv_int_type_double_ucell="unsigned intptr_t"
                    571:     ;;
                    572:   $ac_cv_sizeof_uint128_t)
                    573:     ac_cv_int_type_double_ucell="uint128_t"
                    574:     ;;
                    575: esac
                    576: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
                    577: 
1.204     anton     578: if test "$ac_cv_int_type_double_cell" != none && \
                    579:    test "$ac_cv_int_type_double_ucell" != none
1.144     pazsan    580: then
1.103     anton     581:        AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144     pazsan    582:        AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.206     anton     583:         OPTS=-ll
                    584: else
1.217     pazsan    585:         if test "$ac_cv_sizeof_char_p" = 8; then
1.213     anton     586:            OPTS="-ll -noll"
1.206     anton     587:         else
                    588:            OPTS=-noll
                    589:         fi
1.103     anton     590: fi
1.207     anton     591: 
1.258     anton     592: if grep FORCE_REG $srcdir/arch/$machine/machine.h >/dev/null; then
1.227     pazsan    593:    OPTS2=''
                    594:    for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done
                    595:    OPTS="$OPTS2 $OPTS"
1.223     anton     596: else
                    597:   AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG])
1.207     anton     598: fi
1.206     anton     599: AC_SUBST(OPTS)
1.103     anton     600: 
                    601: AC_TYPE_OFF_T
                    602: AC_CHECK_SIZEOF(off_t)
                    603: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
                    604: ac_small_off_t=$?
                    605: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1       anton     606: 
1.109     anton     607: ENGINE_FLAGS=
                    608: AC_SUBST(ENGINE_FLAGS)
                    609: 
                    610: # Try if GCC understands -fno-gcse
                    611: 
                    612: AC_MSG_CHECKING([if $CC understands -fno-gcse])
                    613: CFLAGS_1="$CFLAGS"
                    614: CFLAGS="$CFLAGS -fno-gcse"
                    615: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
                    616: CFLAGS="$CFLAGS_1"
                    617: AC_MSG_RESULT($ac_nogcse)
                    618: 
                    619: # Try if GCC understands -fno-strict-aliasing
                    620: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
                    621: CFLAGS_1="$CFLAGS"
                    622: CFLAGS="$CFLAGS -fno-strict-aliasing"
                    623: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
                    624: CFLAGS="$CFLAGS_1"
                    625: AC_MSG_RESULT($ac_nostrictaliasing)
                    626: 
1.123     anton     627: # Try if GCC understands -fno-crossjumping
                    628: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88      pazsan    629: CFLAGS_1="$CFLAGS"
1.123     anton     630: CFLAGS="$CFLAGS -fno-crossjumping"
1.125     anton     631: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109     anton     632: CFLAGS="$CFLAGS_1"
1.124     pazsan    633: AC_MSG_RESULT($ac_nocrossjumping)
1.88      pazsan    634: 
1.137     pazsan    635: # Try if GCC understands -fno-reorder-blocks
                    636: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
                    637: CFLAGS_1="$CFLAGS"
                    638: CFLAGS="$CFLAGS -fno-reorder-blocks"
                    639: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
                    640: CFLAGS="$CFLAGS_1"
                    641: AC_MSG_RESULT($ac_noreorder_blocks)
                    642: 
1.189     anton     643: # Try if GCC understands -falign-labels=1
                    644: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
                    645: CFLAGS_1="$CFLAGS"
                    646: CFLAGS="$CFLAGS -falign-labels=1"
1.194     anton     647: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
1.189     anton     648: CFLAGS="$CFLAGS_1"
                    649: AC_MSG_RESULT($ac_align_labels)
                    650: 
1.193     anton     651: # Try if GCC understands -falign-loops=1
                    652: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
                    653: CFLAGS_1="$CFLAGS"
                    654: CFLAGS="$CFLAGS -falign-loops=1"
1.194     anton     655: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
1.193     anton     656: CFLAGS="$CFLAGS_1"
                    657: AC_MSG_RESULT($ac_align_loops)
                    658: 
                    659: # Try if GCC understands -falign-jumps=1
                    660: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
                    661: CFLAGS_1="$CFLAGS"
                    662: CFLAGS="$CFLAGS -falign-jumps=1"
1.194     anton     663: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
1.193     anton     664: CFLAGS="$CFLAGS_1"
                    665: AC_MSG_RESULT($ac_align_jumps)
                    666: 
1.271     anton     667: if test -z "$LIBTOOL_CC"
                    668: then
                    669:   LIBTOOL_CC="$CC"
                    670:   # Try if GCC understands -Wimplicit-function-declaration
                    671:   AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration])
                    672:   CFLAGS_1="$CFLAGS"
                    673:   CFLAGS="$CFLAGS -Wimplicit-function-declaration"
                    674:   AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",)
                    675:   CFLAGS="$CFLAGS_1"
                    676:   AC_MSG_RESULT($ac_align_jumps)
                    677: fi
                    678: AC_SUBST(LIBTOOL_CC)
                    679: 
                    680: 
                    681: 
1.130     anton     682: # Try if GCC understands __attribute__((unused))
                    683: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
                    684: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
                    685: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
                    686: AC_MSG_RESULT($MAYBE_UNUSED)
                    687: 
1.289     anton     688: # Try if GCC understands __thread
                    689: AC_MSG_CHECKING([whether gcc understands '__thread'])
                    690: AC_TRY_COMPILE(,[extern __thread int foo;],PER_THREAD='__thread',)
                    691: AC_DEFINE_UNQUOTED(PER_THREAD,$PER_THREAD,[storage class for thread-local variables])
                    692: AC_MSG_RESULT($PER_THREAD)
                    693: 
1.195     anton     694: #try if m4 understands -s
                    695: AC_MSG_CHECKING([how to invoke m4])
1.196     anton     696: if m4 -s /dev/null >/dev/null 2>&1; then
1.195     anton     697:  M4="m4 -s"
                    698: else
                    699:  M4=m4
                    700: fi
                    701: AC_SUBST(M4)
                    702: AC_MSG_RESULT($M4)
                    703: 
1.202     pazsan    704: # Find installed Gforth
                    705: AC_MSG_CHECKING([for gforth])
1.215     anton     706: GFORTH="`cd / && which gforth 2>/dev/null`"
1.257     anton     707: #the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
                    708: (cd / && $GFORTH -e bye >/dev/null 2>/dev/null  && test "$srcdir" = ".") || GFORTH=""
1.215     anton     709: if test -z "$GFORTH"; then
1.223     anton     710:   PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
1.233     anton     711:   kernel_anti_dependence=''
1.215     anton     712: else
1.239     anton     713:   PREFORTH="$GFORTH -i `cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`" ;
1.233     anton     714:   kernel_anti_dependence='$(kernel_fi)'
1.215     anton     715: fi
                    716: AC_SUBST(PREFORTH)
1.233     anton     717: AC_SUBST(kernel_anti_dependence)
1.215     anton     718: AC_MSG_RESULT($PREFORTH)
1.202     pazsan    719: 
1.215     anton     720: #echo "machine='$machine'"
1.191     anton     721: 
                    722: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.275     pazsan    723: if test x$EC_MODE = xfalse
                    724: then
1.278     dvdkhlng  725:   AS_IF([test -f $srcdir/arch/$machine/asm.fs],
                    726:         [asm_fs=arch/$machine/asm.fs])
1.275     pazsan    727: fi
1.61      anton     728: AC_SUBST(asm_fs)
                    729: 
1.191     anton     730: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.275     pazsan    731: if test x$EC_MODE = xfalse
                    732: then
1.278     dvdkhlng  733:   AS_IF([test -f $srcdir/arch/$machine/disasm.fs],
                    734:        [disasm_fs=arch/$machine/disasm.fs])
1.275     pazsan    735: fi
1.61      anton     736: AC_SUBST(disasm_fs)
                    737: 
1.116     anton     738: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114     anton     739: 
1.39      pazsan    740: case "$host_os" in
1.157     pazsan    741:        *win32*)
                    742:                # !!!FIXME!!! problems with cygwin and ';' as path separator
1.108     anton     743:                DIRSEP="\\\\"
1.127     anton     744:                PATHSEP=";"
1.142     anton     745:                #we want the builtins of command.com/cmd.exe and its
                    746:                # handling of .com files.
                    747:                #$COMSPEC contains the name of the Windows shell;
                    748:                # the ./ is there, because the bash does not recognize
                    749:                # absolute DOS filenames
                    750:                DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39      pazsan    751:                ;;
1.97      anton     752:        *darwin*)
                    753:                #Darwin uses some funny preprocessor by default; eliminate it:
1.127     anton     754:                AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120     anton     755:                CFLAGS="$CFLAGS -no-cpp-precomp"
1.98      anton     756:                DIRSEP="/"
1.127     anton     757:                PATHSEP=":"
1.141     anton     758:                DEFAULTSYSTEMPREFIX=""
1.243     anton     759:                 #the following magic value was suggested by
                    760:                 #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
                    761:                 AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
1.98      anton     762:                ;;
1.246     pazsan    763:        *linux*)
                    764:                DIRSEP="/"
                    765:                PATHSEP=":"
                    766:                DEFAULTSYSTEMPREFIX=""
1.250     anton     767:                if test -z "$LTDL_LIBRARY_PATH" -a "$wordsize" = 64; then
1.253     pazsan    768:                   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    769:                fi
                    770:                ;;
1.39      pazsan    771:        *)
1.88      pazsan    772:                DIRSEP="/"
1.127     anton     773:                PATHSEP=":"
1.141     anton     774:                DEFAULTSYSTEMPREFIX=""
1.39      pazsan    775:                ;;
                    776: esac
1.88      pazsan    777: AC_SUBST(DIRSEP)
1.89      pazsan    778: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127     anton     779: AC_SUBST(PATHSEP)
                    780: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141     anton     781: AC_SUBST(DEFAULTSYSTEMPREFIX)
                    782: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.250     anton     783: if test -n "$LTDL_LIBRARY_PATH"; then
                    784:    AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux])
                    785: fi                                                                
1.39      pazsan    786: 
1.170     anton     787: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
1.172     anton     788: #This magic incantation  seems to be completely undocumented.
                    789: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
1.170     anton     790: 
1.1       anton     791: dnl Now a little support for DOS/DJGCC
1.276     pazsan    792: GFORTHFAST_EXE="$GFORTH_EXE"
                    793: GFORTHITC_EXE="$GFORTH_EXE"
                    794: GFORTHDITC_EXE="$GFORTH_EXE"
1.30      pazsan    795: AC_SUBST(GFORTH_EXE)
1.48      anton     796: AC_SUBST(GFORTHFAST_EXE)
1.83      anton     797: AC_SUBST(GFORTHITC_EXE)
1.30      pazsan    798: AC_SUBST(GFORTHDITC_EXE)
1.27      anton     799: 
                    800: AC_SUBST(FORTHSIZES)
1.24      anton     801: 
1.104     anton     802: dnl if test "$PEEPHOLE" = "yes"
                    803: dnl then
                    804: dnl    PEEPHOLEFLAG="true"
                    805: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
                    806: dnl else
                    807: dnl    PEEPHOLEFLAG="false"
                    808: dnl fi
                    809: PEEPHOLEFLAG="true"
1.79      pazsan    810: AC_SUBST(PEEPHOLEFLAG)
                    811: 
1.1       anton     812: dnl copy commands for systems that don't have links
1.29      pazsan    813: AC_SUBST(LINK_KERNL)
                    814: LINK_KERNL=""
1.1       anton     815: 
                    816: #if test $host_os=dos
                    817: #then
                    818: #  echo Configuring for DOS!!!
                    819: #  MAKE_EXE="coff2exe gforth"
1.29      pazsan    820: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1       anton     821: #fi
                    822: 
                    823: dnl the following macro produces a warning with autoconf-2.1
                    824: AC_C_BIGENDIAN
1.23      pazsan    825: AC_SUBST(KERNEL)
1.1       anton     826: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
1.256     pazsan    827: if test $ac_cv_c_bigendian != no; then
1.1       anton     828:   bytesex=b
1.23      pazsan    829:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1       anton     830: else
                    831:   bytesex=l
1.23      pazsan    832:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1       anton     833: fi
                    834: 
1.91      anton     835: #check how to do asm(".skip 16")
1.169     anton     836: #echo "CFLAGS=$CFLAGS"
                    837: #echo "ac_link=$ac_link"
1.92      anton     838: AC_MSG_CHECKING([if and how we can waste code space])
1.279     dvdkhlng  839: if test -z "$skipcode" && test x$cross_compiling = xyes; then
                    840:    # we cannot perform the AC_TRY_RUN check when cross-compiling.  
                    841:    skipcode=no
                    842:    AC_MSG_RESULT([$skipcode, can't run checks since cross-compiling])
                    843: elif test -z "$skipcode"; then
1.148     anton     844:     skipcode=no
                    845:     CFLAGS_1="$CFLAGS"
                    846:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136     anton     847:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
                    848:     do
1.91      anton     849:        AC_TRY_RUN(
1.136     anton     850: [int foo(int,int,int);
1.91      anton     851: main()
                    852: {
1.136     anton     853:   exit(foo(0,0,0)!=16);
1.91      anton     854: }
1.136     anton     855: int foo(int x, int y, int z)
1.91      anton     856: {
1.136     anton     857:   static void *labels[]={&&label1, &&label2};
1.91      anton     858:   if (x) {
1.136     anton     859:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91      anton     860:   label1:
1.148     anton     861:     asm("$i"); /* or ".space 16" or somesuch */
1.136     anton     862:   label2: ;
                    863:   }
                    864:   {
                    865:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
                    866:   return labels[1]-labels[0];
1.91      anton     867:   }
1.136     anton     868: }]
1.92      anton     869:        ,skipcode=$i; break
                    870:        ,,)
1.136     anton     871:     done
1.148     anton     872:     CFLAGS=$CFLAGS_1
1.136     anton     873: fi
1.92      anton     874: AC_MSG_RESULT($skipcode)
                    875: if test "$skipcode" = no
                    876: then 
1.136     anton     877:     if test -z $no_dynamic_default; then
                    878:        no_dynamic_default=1
                    879:        AC_MSG_WARN(Disabling default dynamic native code generation)
                    880:     fi
1.280     dvdkhlng  881:     AC_DEFINE_UNQUOTED(SKIP16,asm(""),statement for skipping 16 bytes)
1.92      anton     882: else
                    883:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
                    884: fi
1.91      anton     885: 
1.174     anton     886: AC_MSG_CHECKING([if and how we can do comments in asm statements])
                    887: #the point here is to get asm statements that look different to
                    888: #gcc's "optimizer"
                    889: if test -z "$asmcomment"; then
                    890:     asmcomment=no
                    891:     CFLAGS_1="$CFLAGS"
                    892:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.176     anton     893:     for i in '"# "' '"! "' '"; "'; do
1.174     anton     894:        AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
                    895:     done
                    896:     CFLAGS=$CFLAGS_1
                    897: fi
                    898: AC_MSG_RESULT($asmcomment)
                    899: if test "$asmcomment" != no
                    900: then 
                    901:     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
                    902: fi
                    903: 
1.136     anton     904: test "$no_dynamic_default" || no_dynamic_default=0
1.92      anton     905: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91      anton     906: 
1.1       anton     907: dnl Checks for programs.
                    908: AC_PROG_LN_S
1.95      anton     909: AC_PROG_INSTALL
1.163     pazsan    910: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
1.1       anton     911: 
1.288     anton     912: dnl check for the presence of Emacs
                    913: AC_CHECK_PROGS(EMACS,emacs xemacs)
                    914: test -n "$EMACS" && gforth_elc=gforth.elc
                    915: AC_SUBST(gforth_elc)
                    916: 
1.198     anton     917: dnl MacOS X has a libtool that does something else
1.264     pazsan    918: AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
1.198     anton     919: 
1.269     anton     920: dnl Checks for library functions
                    921: dnl This check is just for making later checks link with libm.
                    922: dnl using sin here is no good idea since it is built-into gcc and typechecked
                    923: AC_CHECK_LIB(m,asin)
                    924: AC_CHECK_LIB(ltdl,lt_dlinit)
                    925: 
                    926: if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
1.258     anton     927:   build_libcc_named=build-libcc-named
                    928: else
                    929:   build_libcc_named=""
1.274     anton     930:   AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries])
1.258     anton     931: fi
                    932: AC_SUBST(build_libcc_named)
                    933: 
1.274     anton     934: 
                    935: if test -z "$GNU_LIBTOOL"; then
                    936:   AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.])
                    937:   AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.])
                    938:   GNU_LIBTOOL=libtool
                    939: fi
                    940: 
1.235     anton     941: #check for libffi 2.x
1.237     anton     942: AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
                    943: if test -z "$FFI_H_NAME"; then
                    944:   AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
                    945: fi
                    946: AC_SUBST(FFI_H_NAME)
1.286     pazsan    947: AC_CHECK_LIB(ffi,ffi_call,LIBS="$LIBS")
1.241     anton     948: if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
1.235     anton     949: then
                    950:   LIBFFIFLAG="true"
1.236     anton     951:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs"
1.235     anton     952: else
                    953:   LIBFFIFLAG="false"
                    954: fi
                    955: #check for ffcall libraries
                    956: #unfortunately, these four calls are separated out into a library each.
1.286     pazsan    957: AC_CHECK_LIB(avcall,__builtin_avcall,LIBS="$LIBS")
1.234     pazsan    958: dnl AC_CHECK_LIB(callback,__vacall_r)
                    959: dnl AC_CHECK_LIB(vacall,vacall)
                    960: dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
1.235     anton     961: if test $ac_cv_lib_avcall___builtin_avcall = yes; then
                    962:   FFCALLFLAG="true"
1.236     anton     963:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs"
1.235     anton     964: else
                    965:   FFCALLFLAG="false"
                    966: fi
                    967: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then
                    968:   AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries])
                    969: fi
                    970: AC_SUBST(LIBFFIFLAG)
                    971: AC_SUBST(FFCALLFLAG)
1.236     anton     972: AC_SUBST(LIBCC_BUILD_SRC)
1.32      pazsan    973: if test "$host_os" != "nextstep3"
                    974: then
                    975:        AC_FUNC_MEMCMP
                    976: fi
1.25      pazsan    977: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97      anton     978: AC_FUNC_FSEEKO
1.186     anton     979: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
1.111     anton     980: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19      anton     981: AC_DECL_SYS_SIGLIST
1.138     anton     982: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90      anton     983: AC_CHECK_FUNCS(expm1 log1p)
                    984: AC_REPLACE_FUNCS(rint ecvt)
1.1       anton     985: dnl No check for select, because our replacement is no good under
                    986: dnl anything but DOS
1.277     pazsan    987: AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h endian.h)
1.63      anton     988: AC_FUNC_FNMATCH
1.87      pazsan    989: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.255     anton     990: AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth)
1.34      anton     991: AM_PATH_LISPDIR
1.1       anton     992: 
1.183     pazsan    993: kernel_fi=kernl${vwordsize}${bytesex}.fi
1.178     pazsan    994: include_fi=kernl${wordsize}${bytesex}${EC}.fi
1.23      pazsan    995: AC_SUBST(kernel_fi)
1.178     pazsan    996: AC_SUBST(include_fi)
1.50      jwilke    997: 
1.76      anton     998: #this breaks bindists
                    999: #dnl replace srource directory by absolute value
                   1000: #if test $srcdir = "."; then srcdir=`pwd` 
                   1001: #fi
1.8       anton    1002: 
1.34      anton    1003: AC_SUBST(machine)
1.95      anton    1004: AC_CONFIG_FILES([
1.31      anton    1005: Makefile
1.45      pazsan   1006: Makedist
1.43      anton    1007: gforthmi
1.80      anton    1008: vmgen
1.79      pazsan   1009: machpc.fs
1.159     pazsan   1010: envos.fs
1.223     anton    1011: preforth
1.35      anton    1012: engine/Makefile
1.188     anton    1013: engine/libcc.h
1.161     pazsan   1014: doc/version.texi
                   1015: build-ec ])
1.95      anton    1016: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43      anton    1017: chmod +x gforthmi
1.80      anton    1018: chmod +x vmgen
1.162     pazsan   1019: chmod +x build-ec
1.223     anton    1020: chmod +x preforth
1.188     anton    1021: test -d kernel||mkdir kernel
1.258     anton    1022: if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi
1.188     anton    1023: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
1.262     anton    1024: $srcdir/mkinstalldirs arch/$machine
                   1025: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],
                   1026: [PACKAGE_VERSION=$PACKAGE_VERSION
                   1027:  machine=$machine])
1.95      anton    1028: AC_OUTPUT

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