Annotation of gforth/configure.in, revision 1.297

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
1.294     pazsan     23: AC_INIT([gforth],[0.7.9-20111117],[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!
1.294     pazsan     28: UPDATED="November 17, 2011"
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: 
1.104     anton     130: #variables mentioned in INSTALL
1.203     anton     131: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
1.104     anton     132: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
1.203     anton     133: 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     134: 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     135: 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     136: AC_ARG_VAR(LIBCC_BUILD_SRC, [(Additional) libcc interface source files that should be processed on building and installation (default none)])
1.173     anton     137: 
1.104     anton     138: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
1.183     pazsan    139: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
1.104     anton     140: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
                    141: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
                    142: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
                    143: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
                    144: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
                    145: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
1.254     anton     146: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
                    147: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
1.123     anton     148: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
                    149: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
1.190     anton     150: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
1.166     anton     151: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
1.174     anton     152: AC_ARG_VAR(asmcomment, [assembler comment start string])
1.175     anton     153: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
1.250     anton     154: AC_ARG_VAR(LTDL_LIBRARY_PATH, [additional directories for libltdl (for some 64-bit platforms)])
1.82      anton     155: 
1.96      anton     156: #set up feature test macros, so the tests get them right:
                    157: # turn on all POSIX, SUSv3, and GNU features if available
1.97      anton     158: AC_GNU_SOURCE
                    159: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
                    160: 
                    161: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
                    162: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
                    163: dnl but not for _XOPEN_SOURCE)
                    164: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
                    165: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
                    166: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96      anton     167: # turn on large file support with 64-bit off_t where available
1.105     anton     168: AC_SYS_LARGEFILE
                    169: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
                    170: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96      anton     171: 
1.82      anton     172: #currently we force direct threading this way.  Eventually we should
                    173: #setup in the arch and engine files right
1.16      anton     174: 
1.15      pazsan    175: AC_PROG_CC
                    176: 
1.92      anton     177: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9       pazsan    178: 
1.190     anton     179: AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
                    180: test x$condbranch_opt = x && 
1.238     anton     181: if ($CC -v 2>&1 |grep 'gcc version 3' >/dev/null); then
1.190     anton     182:    condbranch_opt=0
                    183: else
                    184:    condbranch_opt=1
                    185: fi
                    186: AC_MSG_RESULT($condbranch_opt)
                    187: AC_SUBST(condbranch_opt)
                    188: 
1.15      pazsan    189: AC_SUBST(CC)
1.183     pazsan    190: AC_SUBST(GCC_LD)
1.9       pazsan    191: AC_SUBST(DEBUGFLAG)
1.178     pazsan    192: AC_SUBST(EC)
1.275     pazsan    193: AC_SUBST(NO_EC)
1.291     pazsan    194: AC_SUBST(NO_CROSS)
1.167     pazsan    195: AC_SUBST(EC_MODE)
1.178     pazsan    196: AC_SUBST(engine2)
                    197: AC_SUBST(engine_fast2)
                    198: AC_SUBST(no_dynamic)
                    199: AC_SUBST(image_i)
1.179     pazsan    200: AC_SUBST(signals_o)
1.7       anton     201: 
1.174     anton     202: #this is used to disable some (not generally essential) part of the
                    203: #Makefile that some makes don't grok.  It would be better to test for
                    204: #this specific Makefile feature than the make version.
1.128     pazsan    205: AC_MSG_CHECKING(make type)
1.174     anton     206: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
1.128     pazsan    207: GNUMAKE='#'
                    208: test "$make_type" = "GNU Make" && GNUMAKE=''
                    209: AC_MSG_RESULT($make_type)
                    210: AC_SUBST(GNUMAKE)
                    211: 
1.50      jwilke    212: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
                    213: OLDLDFLAGS=$LDFLAGS
                    214: LDFLAGS="$LDFLAGS -export-dynamic"
1.69      anton     215: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
                    216: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
                    217: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50      jwilke    218: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
                    219: AC_MSG_RESULT($ac_export_dynamic)
                    220: 
1.1       anton     221: #terminology is a bit unusual here: The host is the system on which
                    222: #gforth will run; the system on which configure will run is the `build'
                    223: case "$host_cpu" in
1.136     anton     224:        arm*)
                    225:                machine=arm
                    226:                CFLAGS="$CFLAGS -fomit-frame-pointer"
1.184     pazsan    227:                if test x$platform = xnxt; then
1.183     pazsan    228:                   CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
                    229:                fi
1.175     anton     230:                if test -z $arm_cacheflush; then
1.212     dvdkhlng  231:                   case "$host_os" in
                    232:                     *linux*)
1.260     anton     233:                        AC_LIBOBJ(../arch/arm/cacheflush-linux) 
1.212     dvdkhlng  234:                        ;;
                    235:                     *)   
                    236:                        no_dynamic_default=1
1.260     anton     237:                        AC_LIBOBJ(../arch/arm/cacheflush0)
1.212     dvdkhlng  238:                        AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    239:                        ;;
                    240:                    esac
1.260     anton     241:                 else
                    242:                    AC_LIBOBJ(../$arm_cacheflush)
                    243:                    test $srcdir = . || AC_MSG_WARN([setting arm_cacheflush requires building in the source directory])
1.136     anton     244:                fi
1.177     anton     245:                 #longer skipcodes lead to problems on ARM, and it uses
                    246:                 #only 4-byte alignment anyway
                    247:                test "$skipcode" || skipcode="nop"
1.136     anton     248:                ;;
1.1       anton     249:        hppa*)
1.34      anton     250:                machine=hppa
1.87      pazsan    251:                AC_LIBOBJ(../arch/hppa/cache)
1.134     anton     252:                #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
                    253:                LDFLAGS="$LDFLAGS -Xlinker -N"
1.47      anton     254:                LIBS="$LIBS -L/lib/pa1.1/"
1.1       anton     255:                ;;
                    256:        sparc*)
1.34      anton     257:                machine=sparc
1.1       anton     258:                ;;
1.31      anton     259:        i386)
1.34      anton     260:                machine=386
1.189     anton     261:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
1.31      anton     262:                ;;
                    263:        i486)
1.34      anton     264:                machine=386
1.282     dvdkhlng  265:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
                    266:                CFLAGS_1="$CFLAGS"
                    267:                CFLAGS="$CFLAGS -march=i486"
                    268:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
                    269:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
1.31      anton     270:                ;;
1.77      anton     271:        i*86)
1.34      anton     272:                machine=386
1.189     anton     273:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
1.56      pazsan    274:                CFLAGS_1="$CFLAGS"
1.282     dvdkhlng  275:                CFLAGS="$CFLAGS -march=pentium -mtune=generic"
                    276:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -march=pentium")
1.56      pazsan    277:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.282     dvdkhlng  278:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
1.1       anton     279:                ;;
1.133     anton     280:        x86_64)
1.192     pazsan    281:                case $CC
                    282:                in
                    283:                    *-m32*)
                    284:                        machine=386
                    285:                        CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
                    286:                        CFLAGS_1="$CFLAGS"
                    287:                        CFLAGS="$CFLAGS -march=athlon64"
                    288:                        ;;
                    289:                    *)
                    290:                        machine=amd64
                    291:                        ;;
                    292:                esac
1.133     anton     293:                ;;
1.136     anton     294:        ia64*)
                    295:                machine=ia64
                    296:                AC_LIBOBJ(../arch/ia64/flush_icache_block)
                    297:                test "$skipcode" || skipcode="nop.i 0"
                    298:                #".skip 16" passes the test below,
                    299:                # but gives an assembler error in engine
                    300:                ;;
1.26      pazsan    301:         m68k)
1.34      anton     302:                machine=m68k
1.32      pazsan    303:                CFLAGS="$CFLAGS -fomit-frame-pointer"
                    304:                if test "$host_os" = "nextstep3"
                    305:                then
1.87      pazsan    306:                        AC_LIBOBJ(termios)
1.32      pazsan    307:                fi
1.26      pazsan    308:                ;;
1.1       anton     309:        mips*)
1.34      anton     310:                machine=mips
1.281     dvdkhlng  311:                AC_LIBOBJ(../arch/mips/check_prim) 
1.92      anton     312:                #dynamic native code has the following problems on MIPS:
                    313:                #
                    314:                #1) J/JAL seems relocatable, but is are only
                    315:                #relocatable within a 256MB-segment.  While we try to
                    316:                #get the linker to arrange this, there is no guarantee
                    317:                #that this will succeed (and if the user uses a lot of
                    318:                #memory, it is likely to fail).
                    319:                #
                    320:                #2) The way we generate dynamic native code may
                    321:                #violate MIPS architectural restrictions (in
                    322:                #particular, the delay slots of LW, MFLO, etc.)
                    323:                #
                    324:                #Therefore we disable dynamic native code by default:
1.255     anton     325:                if test -z "$no_dynamic_default"; then
1.136     anton     326:                    no_dynamic_default=1
                    327:                    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
                    328:                fi
1.1       anton     329:                ;;
1.9       pazsan    330:        alpha*)
1.34      anton     331:                machine=alpha
1.58      anton     332:                #full IEEE FP support for more uniformity across platforms:
                    333:                CFLAGS="$CFLAGS -mieee"
1.9       pazsan    334:                ;;
1.69      anton     335:        power*|rs6000)
1.34      anton     336:                machine=power
1.138     anton     337:                AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103     anton     338:                #long long is broken on (at least) gcc-2.95.* for PPC
1.165     anton     339:                test x$ac_cv_sizeof_long_long = x && 
1.238     anton     340:                ($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) &&
1.263     anton     341:                      ac_cv_sizeof_long_long=0
1.203     anton     342:                 #The only architecture with enough callee-saved registers
                    343:                 test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
                    344:                 #or use 2, hardly slower at run-time and starts up faster
1.263     anton     345: 
                    346:                 #the skipcode that is normally selected below does not
                    347:                 #work with gcc-3.[34]
                    348:                test "$skipcode" || skipcode="nop\nnop\nnop\nnop"
1.31      anton     349:                ;;
1.1       anton     350:        *)
1.92      anton     351:                AC_MSG_WARN([Using a generic machine description])
                    352:                AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
                    353:                AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34      anton     354:                machine=generic
1.97      anton     355:                #I-cache flushing would be needed for dynamic code generation
1.136     anton     356:                if test -z $no_dynamic_default; then
                    357:                    no_dynamic_default=1
                    358:                    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    359:                fi
1.1       anton     360: esac
1.10      anton     361: AC_SUBST(host)
1.151     anton     362: 
1.184     pazsan    363: MAKEINC=""
1.276     pazsan    364: GFORTH_EXE="true"
1.184     pazsan    365: 
                    366: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
1.183     pazsan    367: if test x$EC_MODE = xtrue
                    368: then
1.184     pazsan    369:        echo "Check for arch/$machine/$platform/gforth.ld"
                    370:        if test -f arch/$machine/$platform/gforth.ld
1.183     pazsan    371:        then
1.184     pazsan    372:                LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
                    373:                if test x$platform = xnxt; then
1.183     pazsan    374:                        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 $LIBS"
                    375:                fi
                    376:        fi
1.184     pazsan    377:        if test -f arch/$machine/$platform/make.inc
                    378:        then
                    379:                MAKEINC="include ../arch/$machine/$platform/make.inc"
1.276     pazsan    380:                GFORTH_EXE="\$(MAKE) -f arch/$machine/$platform/make.inc \$@.exe"
1.184     pazsan    381:        fi
1.183     pazsan    382: fi
1.184     pazsan    383: AC_SUBST(MAKEINC)
1.183     pazsan    384: 
1.203     anton     385: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
                    386: 
                    387: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
                    388: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
                    389:                   [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
1.151     anton     390: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
                    391: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
                    392:                   [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146     pazsan    393: 
1.173     anton     394: test x$GCC_PR15242_WORKAROUND = x ||
                    395: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
                    396:                    [force (1) or forbid (0) use of a workaround for a gcc performance bug])
                    397: 
1.103     anton     398: dnl the following macro produces a warning with autoconf-2.1
                    399: AC_CHECK_SIZEOF(char *)
                    400: case "$ac_cv_sizeof_char_p" in
                    401:   2)
                    402:     wordsize=16
                    403:     ;;
                    404:   4)
                    405:     wordsize=32
                    406:     ;;
                    407:   8)
                    408:     wordsize=64
                    409:     ;;
                    410: esac
                    411: 
1.183     pazsan    412: AC_CHECK_SIZEOF(void *)
                    413: case "$ac_cv_sizeof_void_p" in
                    414:   2)
                    415:     vwordsize=16
                    416:     ;;
                    417:   4)
                    418:     vwordsize=32
                    419:     ;;
                    420:   8)
                    421:     vwordsize=64
                    422:     ;;
                    423: esac
                    424: 
1.103     anton     425: AC_CHECK_SIZEOF(char)
                    426: AC_CHECK_SIZEOF(short)
                    427: AC_CHECK_SIZEOF(int)
                    428: AC_CHECK_SIZEOF(long)
                    429: AC_CHECK_SIZEOF(long long)
                    430: AC_CHECK_SIZEOF(intptr_t)
                    431: AC_CHECK_SIZEOF(int128_t)
1.144     pazsan    432: AC_CHECK_SIZEOF(uint128_t)
1.103     anton     433: 
                    434: AC_MSG_CHECKING([for a C type for cells])
                    435: ac_cv_int_type_cell=none
                    436: case "$ac_cv_sizeof_char_p" in
                    437:   $ac_cv_sizeof_int)
                    438:     ac_cv_int_type_cell=int
                    439:     ;;
                    440:   $ac_cv_sizeof_short)
                    441:     ac_cv_int_type_cell=short
                    442:     ;;
                    443:   $ac_cv_sizeof_char)
                    444:     ac_cv_int_type_cell=char
                    445:     ;;
                    446:   $ac_cv_sizeof_long)
                    447:     ac_cv_int_type_cell=long
                    448:     ;;
                    449:   $ac_cv_sizeof_long_long)
                    450:     ac_cv_int_type_cell="long long"
                    451:     ;;
                    452:   $ac_cv_sizeof_intptr_t)
                    453:     ac_cv_int_type_cell="intptr_t"
                    454:     ;;
                    455: esac
                    456: AC_MSG_RESULT($ac_cv_int_type_cell)
                    457: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
                    458: 
1.153     pazsan    459: AC_MSG_CHECKING([for a C type for wydes])
                    460: ac_cv_wyde_type_cell=none
                    461: case 2 in
                    462:   $ac_cv_sizeof_int)
                    463:     ac_cv_wyde_type_cell=int
                    464:     ;;
                    465:   $ac_cv_sizeof_short)
                    466:     ac_cv_wyde_type_cell=short
                    467:     ;;
                    468:   $ac_cv_sizeof_char)
                    469:     ac_cv_wyde_type_cell=char
                    470:     ;;
                    471:   $ac_cv_sizeof_long)
                    472:     ac_cv_wyde_type_cell=long
                    473:     ;;
                    474:   $ac_cv_sizeof_long_long)
                    475:     ac_cv_wyde_type_cell="long long"
                    476:     ;;
                    477:   $ac_cv_sizeof_intptr_t)
                    478:     ac_cv_wyde_type_cell="intptr_t"
                    479:     ;;
                    480: esac
                    481: AC_MSG_RESULT($ac_cv_wyde_type_cell)
                    482: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
                    483: 
                    484: AC_MSG_CHECKING([for a C type for tetrabytes])
                    485: ac_cv_tetrabyte_type_cell=none
                    486: case 4 in
                    487:   $ac_cv_sizeof_int)
                    488:     ac_cv_tetrabyte_type_cell=int
                    489:     ;;
                    490:   $ac_cv_sizeof_short)
                    491:     ac_cv_tetrabyte_type_cell=short
                    492:     ;;
                    493:   $ac_cv_sizeof_char)
                    494:     ac_cv_tetrabyte_type_cell=char
                    495:     ;;
                    496:   $ac_cv_sizeof_long)
                    497:     ac_cv_tetrabyte_type_cell=long
                    498:     ;;
                    499:   $ac_cv_sizeof_long_long)
                    500:     ac_cv_tetrabyte_type_cell="long long"
                    501:     ;;
                    502:   $ac_cv_sizeof_intptr_t)
                    503:     ac_cv_tetrabyte_type_cell="intptr_t"
                    504:     ;;
                    505: esac
                    506: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
                    507: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
                    508: 
1.277     pazsan    509: AC_MSG_CHECKING([for a C type for octabytes])
                    510: ac_cv_octabyte_type_cell=none
                    511: case 8 in
                    512:   $ac_cv_sizeof_int)
                    513:     ac_cv_octabyte_type_cell=int
                    514:     ;;
                    515:   $ac_cv_sizeof_short)
                    516:     ac_cv_octabyte_type_cell=short
                    517:     ;;
                    518:   $ac_cv_sizeof_char)
                    519:     ac_cv_octabyte_type_cell=char
                    520:     ;;
                    521:   $ac_cv_sizeof_long)
                    522:     ac_cv_octabyte_type_cell=long
                    523:     ;;
                    524:   $ac_cv_sizeof_long_long)
                    525:     ac_cv_octabyte_type_cell="long long"
                    526:     ;;
                    527:   $ac_cv_sizeof_intptr_t)
                    528:     ac_cv_octabyte_type_cell="intptr_t"
                    529:     ;;
                    530: esac
                    531: AC_MSG_RESULT($ac_cv_octabyte_type_cell)
                    532: AC_DEFINE_UNQUOTED(OCTABYTE_TYPE,$ac_cv_octabyte_type_cell,[an integer type that is 8 bytes long])
                    533: 
1.103     anton     534: AC_MSG_CHECKING([for a C type for double-cells])
                    535: ac_cv_int_type_double_cell=none
                    536: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    537:   $ac_cv_sizeof_short)
                    538:     ac_cv_int_type_double_cell=short
                    539:     ;;
                    540:   $ac_cv_sizeof_int)
                    541:     ac_cv_int_type_double_cell=int
                    542:     ;;
                    543:   $ac_cv_sizeof_long)
                    544:     ac_cv_int_type_double_cell=long
                    545:     ;;
                    546:   $ac_cv_sizeof_long_long)
                    547:     ac_cv_int_type_double_cell="long long"
                    548:     ;;
                    549:   $ac_cv_sizeof_intptr_t)
                    550:     ac_cv_int_type_double_cell="intptr_t"
                    551:     ;;
1.205     anton     552:   $ac_cv_sizeof_int128_t)
1.103     anton     553:     ac_cv_int_type_double_cell="int128_t"
                    554:     ;;
                    555: esac
                    556: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144     pazsan    557: 
                    558: AC_MSG_CHECKING([for a C type for unsigned double-cells])
                    559: ac_cv_int_type_double_ucell=none
                    560: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    561:   $ac_cv_sizeof_short)
                    562:     ac_cv_int_type_double_ucell="unsigned short"
                    563:     ;;
                    564:   $ac_cv_sizeof_int)
                    565:     ac_cv_int_type_double_ucell="unsigned int"
                    566:     ;;
                    567:   $ac_cv_sizeof_long)
                    568:     ac_cv_int_type_double_ucell="unsigned long"
                    569:     ;;
                    570:   $ac_cv_sizeof_long_long)
                    571:     ac_cv_int_type_double_ucell="unsigned long long"
                    572:     ;;
                    573:   $ac_cv_sizeof_intptr_t)
                    574:     ac_cv_int_type_double_ucell="unsigned intptr_t"
                    575:     ;;
                    576:   $ac_cv_sizeof_uint128_t)
                    577:     ac_cv_int_type_double_ucell="uint128_t"
                    578:     ;;
                    579: esac
                    580: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
                    581: 
1.204     anton     582: if test "$ac_cv_int_type_double_cell" != none && \
                    583:    test "$ac_cv_int_type_double_ucell" != none
1.144     pazsan    584: then
1.103     anton     585:        AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144     pazsan    586:        AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.206     anton     587:         OPTS=-ll
                    588: else
1.217     pazsan    589:         if test "$ac_cv_sizeof_char_p" = 8; then
1.213     anton     590:            OPTS="-ll -noll"
1.206     anton     591:         else
                    592:            OPTS=-noll
                    593:         fi
1.103     anton     594: fi
1.207     anton     595: 
1.258     anton     596: if grep FORCE_REG $srcdir/arch/$machine/machine.h >/dev/null; then
1.227     pazsan    597:    OPTS2=''
                    598:    for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done
                    599:    OPTS="$OPTS2 $OPTS"
1.223     anton     600: else
                    601:   AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG])
1.207     anton     602: fi
1.206     anton     603: AC_SUBST(OPTS)
1.103     anton     604: 
                    605: AC_TYPE_OFF_T
                    606: AC_CHECK_SIZEOF(off_t)
                    607: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
                    608: ac_small_off_t=$?
                    609: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1       anton     610: 
1.109     anton     611: ENGINE_FLAGS=
                    612: AC_SUBST(ENGINE_FLAGS)
                    613: 
                    614: # Try if GCC understands -fno-gcse
                    615: 
                    616: AC_MSG_CHECKING([if $CC understands -fno-gcse])
                    617: CFLAGS_1="$CFLAGS"
                    618: CFLAGS="$CFLAGS -fno-gcse"
                    619: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
                    620: CFLAGS="$CFLAGS_1"
                    621: AC_MSG_RESULT($ac_nogcse)
                    622: 
                    623: # Try if GCC understands -fno-strict-aliasing
                    624: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
                    625: CFLAGS_1="$CFLAGS"
                    626: CFLAGS="$CFLAGS -fno-strict-aliasing"
                    627: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
                    628: CFLAGS="$CFLAGS_1"
                    629: AC_MSG_RESULT($ac_nostrictaliasing)
                    630: 
1.123     anton     631: # Try if GCC understands -fno-crossjumping
                    632: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88      pazsan    633: CFLAGS_1="$CFLAGS"
1.123     anton     634: CFLAGS="$CFLAGS -fno-crossjumping"
1.125     anton     635: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109     anton     636: CFLAGS="$CFLAGS_1"
1.124     pazsan    637: AC_MSG_RESULT($ac_nocrossjumping)
1.88      pazsan    638: 
1.137     pazsan    639: # Try if GCC understands -fno-reorder-blocks
                    640: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
                    641: CFLAGS_1="$CFLAGS"
                    642: CFLAGS="$CFLAGS -fno-reorder-blocks"
                    643: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
                    644: CFLAGS="$CFLAGS_1"
                    645: AC_MSG_RESULT($ac_noreorder_blocks)
                    646: 
1.189     anton     647: # Try if GCC understands -falign-labels=1
                    648: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
                    649: CFLAGS_1="$CFLAGS"
                    650: CFLAGS="$CFLAGS -falign-labels=1"
1.194     anton     651: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
1.189     anton     652: CFLAGS="$CFLAGS_1"
                    653: AC_MSG_RESULT($ac_align_labels)
                    654: 
1.193     anton     655: # Try if GCC understands -falign-loops=1
                    656: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
                    657: CFLAGS_1="$CFLAGS"
                    658: CFLAGS="$CFLAGS -falign-loops=1"
1.194     anton     659: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
1.193     anton     660: CFLAGS="$CFLAGS_1"
                    661: AC_MSG_RESULT($ac_align_loops)
                    662: 
                    663: # Try if GCC understands -falign-jumps=1
                    664: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
                    665: CFLAGS_1="$CFLAGS"
                    666: CFLAGS="$CFLAGS -falign-jumps=1"
1.194     anton     667: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
1.193     anton     668: CFLAGS="$CFLAGS_1"
                    669: AC_MSG_RESULT($ac_align_jumps)
                    670: 
1.271     anton     671: if test -z "$LIBTOOL_CC"
                    672: then
                    673:   LIBTOOL_CC="$CC"
                    674:   # Try if GCC understands -Wimplicit-function-declaration
                    675:   AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration])
                    676:   CFLAGS_1="$CFLAGS"
                    677:   CFLAGS="$CFLAGS -Wimplicit-function-declaration"
                    678:   AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",)
                    679:   CFLAGS="$CFLAGS_1"
                    680:   AC_MSG_RESULT($ac_align_jumps)
                    681: fi
                    682: AC_SUBST(LIBTOOL_CC)
                    683: 
                    684: 
                    685: 
1.130     anton     686: # Try if GCC understands __attribute__((unused))
                    687: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
                    688: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
                    689: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
                    690: AC_MSG_RESULT($MAYBE_UNUSED)
                    691: 
1.289     anton     692: # Try if GCC understands __thread
                    693: AC_MSG_CHECKING([whether gcc understands '__thread'])
                    694: AC_TRY_COMPILE(,[extern __thread int foo;],PER_THREAD='__thread',)
                    695: AC_DEFINE_UNQUOTED(PER_THREAD,$PER_THREAD,[storage class for thread-local variables])
                    696: AC_MSG_RESULT($PER_THREAD)
                    697: 
1.195     anton     698: #try if m4 understands -s
                    699: AC_MSG_CHECKING([how to invoke m4])
1.196     anton     700: if m4 -s /dev/null >/dev/null 2>&1; then
1.195     anton     701:  M4="m4 -s"
                    702: else
                    703:  M4=m4
                    704: fi
                    705: AC_SUBST(M4)
                    706: AC_MSG_RESULT($M4)
                    707: 
1.215     anton     708: #echo "machine='$machine'"
1.191     anton     709: 
                    710: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.275     pazsan    711: if test x$EC_MODE = xfalse
                    712: then
1.278     dvdkhlng  713:   AS_IF([test -f $srcdir/arch/$machine/asm.fs],
                    714:         [asm_fs=arch/$machine/asm.fs])
1.275     pazsan    715: fi
1.61      anton     716: AC_SUBST(asm_fs)
                    717: 
1.191     anton     718: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.275     pazsan    719: if test x$EC_MODE = xfalse
                    720: then
1.278     dvdkhlng  721:   AS_IF([test -f $srcdir/arch/$machine/disasm.fs],
                    722:        [disasm_fs=arch/$machine/disasm.fs])
1.275     pazsan    723: fi
1.61      anton     724: AC_SUBST(disasm_fs)
                    725: 
1.116     anton     726: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114     anton     727: 
1.39      pazsan    728: case "$host_os" in
1.157     pazsan    729:        *win32*)
                    730:                # !!!FIXME!!! problems with cygwin and ';' as path separator
1.108     anton     731:                DIRSEP="\\\\"
1.127     anton     732:                PATHSEP=";"
1.142     anton     733:                #we want the builtins of command.com/cmd.exe and its
                    734:                # handling of .com files.
                    735:                #$COMSPEC contains the name of the Windows shell;
                    736:                # the ./ is there, because the bash does not recognize
                    737:                # absolute DOS filenames
                    738:                DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39      pazsan    739:                ;;
1.97      anton     740:        *darwin*)
                    741:                #Darwin uses some funny preprocessor by default; eliminate it:
1.127     anton     742:                AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120     anton     743:                CFLAGS="$CFLAGS -no-cpp-precomp"
1.98      anton     744:                DIRSEP="/"
1.127     anton     745:                PATHSEP=":"
1.141     anton     746:                DEFAULTSYSTEMPREFIX=""
1.243     anton     747:                 #the following magic value was suggested by
                    748:                 #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
                    749:                 AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
1.98      anton     750:                ;;
1.246     pazsan    751:        *linux*)
                    752:                DIRSEP="/"
                    753:                PATHSEP=":"
                    754:                DEFAULTSYSTEMPREFIX=""
1.250     anton     755:                if test -z "$LTDL_LIBRARY_PATH" -a "$wordsize" = 64; then
1.253     pazsan    756:                   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    757:                fi
                    758:                ;;
1.39      pazsan    759:        *)
1.88      pazsan    760:                DIRSEP="/"
1.127     anton     761:                PATHSEP=":"
1.141     anton     762:                DEFAULTSYSTEMPREFIX=""
1.39      pazsan    763:                ;;
                    764: esac
1.88      pazsan    765: AC_SUBST(DIRSEP)
1.89      pazsan    766: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127     anton     767: AC_SUBST(PATHSEP)
                    768: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141     anton     769: AC_SUBST(DEFAULTSYSTEMPREFIX)
                    770: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.250     anton     771: if test -n "$LTDL_LIBRARY_PATH"; then
                    772:    AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux])
                    773: fi                                                                
1.39      pazsan    774: 
1.170     anton     775: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
1.172     anton     776: #This magic incantation  seems to be completely undocumented.
                    777: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
1.170     anton     778: 
1.1       anton     779: dnl Now a little support for DOS/DJGCC
1.276     pazsan    780: GFORTHFAST_EXE="$GFORTH_EXE"
                    781: GFORTHITC_EXE="$GFORTH_EXE"
                    782: GFORTHDITC_EXE="$GFORTH_EXE"
1.30      pazsan    783: AC_SUBST(GFORTH_EXE)
1.48      anton     784: AC_SUBST(GFORTHFAST_EXE)
1.83      anton     785: AC_SUBST(GFORTHITC_EXE)
1.30      pazsan    786: AC_SUBST(GFORTHDITC_EXE)
1.27      anton     787: 
                    788: AC_SUBST(FORTHSIZES)
1.24      anton     789: 
1.104     anton     790: dnl if test "$PEEPHOLE" = "yes"
                    791: dnl then
                    792: dnl    PEEPHOLEFLAG="true"
                    793: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
                    794: dnl else
                    795: dnl    PEEPHOLEFLAG="false"
                    796: dnl fi
                    797: PEEPHOLEFLAG="true"
1.79      pazsan    798: AC_SUBST(PEEPHOLEFLAG)
                    799: 
1.1       anton     800: dnl copy commands for systems that don't have links
1.29      pazsan    801: AC_SUBST(LINK_KERNL)
                    802: LINK_KERNL=""
1.1       anton     803: 
                    804: #if test $host_os=dos
                    805: #then
                    806: #  echo Configuring for DOS!!!
                    807: #  MAKE_EXE="coff2exe gforth"
1.29      pazsan    808: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1       anton     809: #fi
                    810: 
                    811: dnl the following macro produces a warning with autoconf-2.1
                    812: AC_C_BIGENDIAN
1.23      pazsan    813: AC_SUBST(KERNEL)
1.1       anton     814: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
1.256     pazsan    815: if test $ac_cv_c_bigendian != no; then
1.1       anton     816:   bytesex=b
1.23      pazsan    817:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1       anton     818: else
                    819:   bytesex=l
1.23      pazsan    820:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1       anton     821: fi
                    822: 
1.91      anton     823: #check how to do asm(".skip 16")
1.169     anton     824: #echo "CFLAGS=$CFLAGS"
                    825: #echo "ac_link=$ac_link"
1.92      anton     826: AC_MSG_CHECKING([if and how we can waste code space])
1.279     dvdkhlng  827: if test -z "$skipcode" && test x$cross_compiling = xyes; then
                    828:    # we cannot perform the AC_TRY_RUN check when cross-compiling.  
                    829:    skipcode=no
                    830:    AC_MSG_RESULT([$skipcode, can't run checks since cross-compiling])
                    831: elif test -z "$skipcode"; then
1.148     anton     832:     skipcode=no
                    833:     CFLAGS_1="$CFLAGS"
                    834:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136     anton     835:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
                    836:     do
1.91      anton     837:        AC_TRY_RUN(
1.136     anton     838: [int foo(int,int,int);
1.91      anton     839: main()
                    840: {
1.136     anton     841:   exit(foo(0,0,0)!=16);
1.91      anton     842: }
1.136     anton     843: int foo(int x, int y, int z)
1.91      anton     844: {
1.136     anton     845:   static void *labels[]={&&label1, &&label2};
1.91      anton     846:   if (x) {
1.136     anton     847:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91      anton     848:   label1:
1.148     anton     849:     asm("$i"); /* or ".space 16" or somesuch */
1.136     anton     850:   label2: ;
                    851:   }
                    852:   {
                    853:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
                    854:   return labels[1]-labels[0];
1.91      anton     855:   }
1.136     anton     856: }]
1.92      anton     857:        ,skipcode=$i; break
                    858:        ,,)
1.136     anton     859:     done
1.148     anton     860:     CFLAGS=$CFLAGS_1
1.136     anton     861: fi
1.92      anton     862: AC_MSG_RESULT($skipcode)
                    863: if test "$skipcode" = no
                    864: then 
1.136     anton     865:     if test -z $no_dynamic_default; then
                    866:        no_dynamic_default=1
                    867:        AC_MSG_WARN(Disabling default dynamic native code generation)
                    868:     fi
1.280     dvdkhlng  869:     AC_DEFINE_UNQUOTED(SKIP16,asm(""),statement for skipping 16 bytes)
1.92      anton     870: else
                    871:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
                    872: fi
1.91      anton     873: 
1.174     anton     874: AC_MSG_CHECKING([if and how we can do comments in asm statements])
                    875: #the point here is to get asm statements that look different to
                    876: #gcc's "optimizer"
                    877: if test -z "$asmcomment"; then
                    878:     asmcomment=no
                    879:     CFLAGS_1="$CFLAGS"
                    880:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.176     anton     881:     for i in '"# "' '"! "' '"; "'; do
1.174     anton     882:        AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
                    883:     done
                    884:     CFLAGS=$CFLAGS_1
                    885: fi
                    886: AC_MSG_RESULT($asmcomment)
                    887: if test "$asmcomment" != no
                    888: then 
                    889:     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
                    890: fi
                    891: 
1.136     anton     892: test "$no_dynamic_default" || no_dynamic_default=0
1.92      anton     893: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91      anton     894: 
1.1       anton     895: dnl Checks for programs.
                    896: AC_PROG_LN_S
1.95      anton     897: AC_PROG_INSTALL
1.163     pazsan    898: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
1.1       anton     899: 
1.288     anton     900: dnl check for the presence of Emacs
                    901: AC_CHECK_PROGS(EMACS,emacs xemacs)
                    902: test -n "$EMACS" && gforth_elc=gforth.elc
                    903: AC_SUBST(gforth_elc)
                    904: 
1.198     anton     905: dnl MacOS X has a libtool that does something else
1.264     pazsan    906: AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
1.198     anton     907: 
1.269     anton     908: dnl Checks for library functions
                    909: dnl This check is just for making later checks link with libm.
                    910: dnl using sin here is no good idea since it is built-into gcc and typechecked
                    911: AC_CHECK_LIB(m,asin)
                    912: AC_CHECK_LIB(ltdl,lt_dlinit)
1.295     pazsan    913: AC_CHECK_LIB(rt,clock_gettime)
1.269     anton     914: 
                    915: if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
1.258     anton     916:   build_libcc_named=build-libcc-named
                    917: else
                    918:   build_libcc_named=""
1.274     anton     919:   AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries])
1.258     anton     920: fi
                    921: AC_SUBST(build_libcc_named)
                    922: 
1.274     anton     923: 
                    924: if test -z "$GNU_LIBTOOL"; then
                    925:   AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.])
                    926:   AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.])
                    927:   GNU_LIBTOOL=libtool
                    928: fi
                    929: 
1.235     anton     930: #check for libffi 2.x
1.237     anton     931: AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
                    932: if test -z "$FFI_H_NAME"; then
                    933:   AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
                    934: fi
                    935: AC_SUBST(FFI_H_NAME)
1.286     pazsan    936: AC_CHECK_LIB(ffi,ffi_call,LIBS="$LIBS")
1.241     anton     937: if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
1.235     anton     938: then
                    939:   LIBFFIFLAG="true"
1.236     anton     940:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs"
1.235     anton     941: else
                    942:   LIBFFIFLAG="false"
                    943: fi
                    944: #check for ffcall libraries
                    945: #unfortunately, these four calls are separated out into a library each.
1.286     pazsan    946: AC_CHECK_LIB(avcall,__builtin_avcall,LIBS="$LIBS")
1.234     pazsan    947: dnl AC_CHECK_LIB(callback,__vacall_r)
                    948: dnl AC_CHECK_LIB(vacall,vacall)
                    949: dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
1.235     anton     950: if test $ac_cv_lib_avcall___builtin_avcall = yes; then
                    951:   FFCALLFLAG="true"
1.236     anton     952:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs"
1.235     anton     953: else
                    954:   FFCALLFLAG="false"
                    955: fi
                    956: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then
                    957:   AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries])
                    958: fi
                    959: AC_SUBST(LIBFFIFLAG)
                    960: AC_SUBST(FFCALLFLAG)
1.236     anton     961: AC_SUBST(LIBCC_BUILD_SRC)
1.32      pazsan    962: if test "$host_os" != "nextstep3"
                    963: then
                    964:        AC_FUNC_MEMCMP
                    965: fi
1.25      pazsan    966: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97      anton     967: AC_FUNC_FSEEKO
1.296     pazsan    968: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep clock_gettime)
1.111     anton     969: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19      anton     970: AC_DECL_SYS_SIGLIST
1.138     anton     971: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90      anton     972: AC_CHECK_FUNCS(expm1 log1p)
                    973: AC_REPLACE_FUNCS(rint ecvt)
1.1       anton     974: dnl No check for select, because our replacement is no good under
                    975: dnl anything but DOS
1.277     pazsan    976: AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h endian.h)
1.63      anton     977: AC_FUNC_FNMATCH
1.87      pazsan    978: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.255     anton     979: AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth)
1.34      anton     980: AM_PATH_LISPDIR
1.1       anton     981: 
1.183     pazsan    982: kernel_fi=kernl${vwordsize}${bytesex}.fi
1.178     pazsan    983: include_fi=kernl${wordsize}${bytesex}${EC}.fi
1.23      pazsan    984: AC_SUBST(kernel_fi)
1.178     pazsan    985: AC_SUBST(include_fi)
1.50      jwilke    986: 
1.292     pazsan    987: # Find installed Gforth
                    988: AC_MSG_CHECKING([for gforth])
                    989: GFORTH="`cd / && which gforth 2>/dev/null`"
                    990: #the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
                    991: (cd / && $GFORTH -e bye >/dev/null 2>/dev/null  && test "$srcdir" = ".") || GFORTH=""
                    992: if test -z "$GFORTH"; then
                    993:   PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
1.293     pazsan    994:   GFORTHKER='echo "You need to configure with a gforth in \$PATH to build this part" && false'
1.292     pazsan    995:   kernel_anti_dependence=''
                    996: else
                    997:   GFORTH_FI=`cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`
                    998:   PREFORTH="$GFORTH -i $GFORTH_FI" ;
1.294     pazsan    999:   KERNLX_FI1=`echo $GFORTH_FI | sed -e s/lib/share/g -e s/gforth.fi/kernl*.fi/g`
                   1000:   KERNLX_FI2=`echo $GFORTH_FI | sed -e s/gforth.fi/kernl*.fi/g`
                   1001:   test -f $KERNLX_FI1 && KERNLX_FI=$KERNLX_FI1
                   1002:   test -f $KERNLX_FI2 && KERNLX_FI=$KERNLX_FI2
1.293     pazsan   1003:   GFORTHKER="$GFORTH -i `echo $KERNLX_FI`" ;
1.292     pazsan   1004:   kernel_anti_dependence='$(kernel_fi)'
                   1005: fi
                   1006: AC_SUBST(PREFORTH)
1.293     pazsan   1007: AC_SUBST(GFORTHKER)
1.292     pazsan   1008: AC_SUBST(kernel_anti_dependence)
                   1009: AC_MSG_RESULT($PREFORTH)
                   1010: 
1.76      anton    1011: #this breaks bindists
                   1012: #dnl replace srource directory by absolute value
                   1013: #if test $srcdir = "."; then srcdir=`pwd` 
                   1014: #fi
1.8       anton    1015: 
1.34      anton    1016: AC_SUBST(machine)
1.95      anton    1017: AC_CONFIG_FILES([
1.31      anton    1018: Makefile
1.45      pazsan   1019: Makedist
1.43      anton    1020: gforthmi
1.80      anton    1021: vmgen
1.79      pazsan   1022: machpc.fs
1.159     pazsan   1023: envos.fs
1.223     anton    1024: preforth
1.293     pazsan   1025: gforthker
1.35      anton    1026: engine/Makefile
1.188     anton    1027: engine/libcc.h
1.161     pazsan   1028: doc/version.texi
                   1029: build-ec ])
1.95      anton    1030: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43      anton    1031: chmod +x gforthmi
1.80      anton    1032: chmod +x vmgen
1.162     pazsan   1033: chmod +x build-ec
1.223     anton    1034: chmod +x preforth
1.293     pazsan   1035: chmod +x gforthker
1.188     anton    1036: test -d kernel||mkdir kernel
1.258     anton    1037: if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi
1.188     anton    1038: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
1.262     anton    1039: $srcdir/mkinstalldirs arch/$machine
                   1040: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],
                   1041: [PACKAGE_VERSION=$PACKAGE_VERSION
                   1042:  machine=$machine])
1.95      anton    1043: AC_OUTPUT

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