Annotation of gforth/configure.in, revision 1.278

1.1       anton       1: dnl Process this file with autoconf to produce a configure script.
1.20      anton       2: 
1.273     anton       3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009 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
1.278   ! dvdkhlng   23: AC_INIT([gforth],[0.7.0-20100725],[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!
1.266     anton      28: UPDATED="November 8, 2008"
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: 
1.104     anton     111: #variables mentioned in INSTALL
1.203     anton     112: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
1.104     anton     113: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
1.203     anton     114: 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     115: 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     116: 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     117: AC_ARG_VAR(LIBCC_BUILD_SRC, [(Additional) libcc interface source files that should be processed on building and installation (default none)])
1.173     anton     118: 
1.104     anton     119: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
1.183     pazsan    120: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
1.104     anton     121: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
                    122: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
                    123: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
                    124: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
                    125: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
                    126: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
1.254     anton     127: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
                    128: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
1.123     anton     129: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
                    130: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
1.190     anton     131: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
1.166     anton     132: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
1.174     anton     133: AC_ARG_VAR(asmcomment, [assembler comment start string])
1.175     anton     134: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
1.250     anton     135: AC_ARG_VAR(LTDL_LIBRARY_PATH, [additional directories for libltdl (for some 64-bit platforms)])
1.82      anton     136: 
1.96      anton     137: #set up feature test macros, so the tests get them right:
                    138: # turn on all POSIX, SUSv3, and GNU features if available
1.97      anton     139: AC_GNU_SOURCE
                    140: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
                    141: 
                    142: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
                    143: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
                    144: dnl but not for _XOPEN_SOURCE)
                    145: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
                    146: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
                    147: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96      anton     148: # turn on large file support with 64-bit off_t where available
1.105     anton     149: AC_SYS_LARGEFILE
                    150: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
                    151: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96      anton     152: 
1.82      anton     153: #currently we force direct threading this way.  Eventually we should
                    154: #setup in the arch and engine files right
1.16      anton     155: 
1.15      pazsan    156: AC_PROG_CC
                    157: 
1.92      anton     158: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9       pazsan    159: 
1.190     anton     160: AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
                    161: test x$condbranch_opt = x && 
1.238     anton     162: if ($CC -v 2>&1 |grep 'gcc version 3' >/dev/null); then
1.190     anton     163:    condbranch_opt=0
                    164: else
                    165:    condbranch_opt=1
                    166: fi
                    167: AC_MSG_RESULT($condbranch_opt)
                    168: AC_SUBST(condbranch_opt)
                    169: 
1.15      pazsan    170: AC_SUBST(CC)
1.183     pazsan    171: AC_SUBST(GCC_LD)
1.9       pazsan    172: AC_SUBST(DEBUGFLAG)
1.178     pazsan    173: AC_SUBST(EC)
1.275     pazsan    174: AC_SUBST(NO_EC)
1.167     pazsan    175: AC_SUBST(EC_MODE)
1.178     pazsan    176: AC_SUBST(engine2)
                    177: AC_SUBST(engine_fast2)
                    178: AC_SUBST(no_dynamic)
                    179: AC_SUBST(image_i)
1.179     pazsan    180: AC_SUBST(signals_o)
1.7       anton     181: 
1.174     anton     182: #this is used to disable some (not generally essential) part of the
                    183: #Makefile that some makes don't grok.  It would be better to test for
                    184: #this specific Makefile feature than the make version.
1.128     pazsan    185: AC_MSG_CHECKING(make type)
1.174     anton     186: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
1.128     pazsan    187: GNUMAKE='#'
                    188: test "$make_type" = "GNU Make" && GNUMAKE=''
                    189: AC_MSG_RESULT($make_type)
                    190: AC_SUBST(GNUMAKE)
                    191: 
1.50      jwilke    192: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
                    193: OLDLDFLAGS=$LDFLAGS
                    194: LDFLAGS="$LDFLAGS -export-dynamic"
1.69      anton     195: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
                    196: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
                    197: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50      jwilke    198: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
                    199: AC_MSG_RESULT($ac_export_dynamic)
                    200: 
1.1       anton     201: #terminology is a bit unusual here: The host is the system on which
                    202: #gforth will run; the system on which configure will run is the `build'
                    203: case "$host_cpu" in
1.136     anton     204:        arm*)
                    205:                machine=arm
                    206:                CFLAGS="$CFLAGS -fomit-frame-pointer"
1.184     pazsan    207:                if test x$platform = xnxt; then
1.183     pazsan    208:                   CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
                    209:                fi
1.175     anton     210:                if test -z $arm_cacheflush; then
1.212     dvdkhlng  211:                   case "$host_os" in
                    212:                     *linux*)
1.260     anton     213:                        AC_LIBOBJ(../arch/arm/cacheflush-linux) 
1.212     dvdkhlng  214:                        ;;
                    215:                     *)   
                    216:                        no_dynamic_default=1
1.260     anton     217:                        AC_LIBOBJ(../arch/arm/cacheflush0)
1.212     dvdkhlng  218:                        AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    219:                        ;;
                    220:                    esac
1.260     anton     221:                 else
                    222:                    AC_LIBOBJ(../$arm_cacheflush)
                    223:                    test $srcdir = . || AC_MSG_WARN([setting arm_cacheflush requires building in the source directory])
1.136     anton     224:                fi
1.177     anton     225:                 #longer skipcodes lead to problems on ARM, and it uses
                    226:                 #only 4-byte alignment anyway
                    227:                test "$skipcode" || skipcode="nop"
1.136     anton     228:                ;;
1.1       anton     229:        hppa*)
1.34      anton     230:                machine=hppa
1.87      pazsan    231:                AC_LIBOBJ(../arch/hppa/cache)
1.134     anton     232:                #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
                    233:                LDFLAGS="$LDFLAGS -Xlinker -N"
1.47      anton     234:                LIBS="$LIBS -L/lib/pa1.1/"
1.1       anton     235:                ;;
                    236:        sparc*)
1.34      anton     237:                machine=sparc
1.1       anton     238:                ;;
1.31      anton     239:        i386)
1.34      anton     240:                machine=386
1.189     anton     241:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
1.31      anton     242:                ;;
                    243:        i486)
1.34      anton     244:                machine=386
1.189     anton     245:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -m486"
1.31      anton     246:                ;;
1.77      anton     247:        i*86)
1.34      anton     248:                machine=386
1.189     anton     249:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
1.56      pazsan    250:                CFLAGS_1="$CFLAGS"
1.87      pazsan    251:                CFLAGS="$CFLAGS -march=pentium"
1.56      pazsan    252:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1       anton     253:                ;;
1.133     anton     254:        x86_64)
1.192     pazsan    255:                case $CC
                    256:                in
                    257:                    *-m32*)
                    258:                        machine=386
                    259:                        CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
                    260:                        CFLAGS_1="$CFLAGS"
                    261:                        CFLAGS="$CFLAGS -march=athlon64"
                    262:                        ;;
                    263:                    *)
                    264:                        machine=amd64
                    265:                        ;;
                    266:                esac
1.133     anton     267:                ;;
1.136     anton     268:        ia64*)
                    269:                machine=ia64
                    270:                AC_LIBOBJ(../arch/ia64/flush_icache_block)
                    271:                test "$skipcode" || skipcode="nop.i 0"
                    272:                #".skip 16" passes the test below,
                    273:                # but gives an assembler error in engine
                    274:                ;;
1.26      pazsan    275:         m68k)
1.34      anton     276:                machine=m68k
1.32      pazsan    277:                CFLAGS="$CFLAGS -fomit-frame-pointer"
                    278:                if test "$host_os" = "nextstep3"
                    279:                then
1.87      pazsan    280:                        AC_LIBOBJ(termios)
1.32      pazsan    281:                fi
1.26      pazsan    282:                ;;
1.1       anton     283:        mips*)
1.34      anton     284:                machine=mips
1.92      anton     285:                #dynamic native code has the following problems on MIPS:
                    286:                #
                    287:                #1) J/JAL seems relocatable, but is are only
                    288:                #relocatable within a 256MB-segment.  While we try to
                    289:                #get the linker to arrange this, there is no guarantee
                    290:                #that this will succeed (and if the user uses a lot of
                    291:                #memory, it is likely to fail).
                    292:                #
                    293:                #2) The way we generate dynamic native code may
                    294:                #violate MIPS architectural restrictions (in
                    295:                #particular, the delay slots of LW, MFLO, etc.)
                    296:                #
                    297:                #Therefore we disable dynamic native code by default:
1.255     anton     298:                if test -z "$no_dynamic_default"; then
1.136     anton     299:                    no_dynamic_default=1
                    300:                    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
                    301:                fi
1.1       anton     302:                ;;
1.9       pazsan    303:        alpha*)
1.34      anton     304:                machine=alpha
1.58      anton     305:                #full IEEE FP support for more uniformity across platforms:
                    306:                CFLAGS="$CFLAGS -mieee"
1.9       pazsan    307:                ;;
1.69      anton     308:        power*|rs6000)
1.34      anton     309:                machine=power
1.138     anton     310:                AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103     anton     311:                #long long is broken on (at least) gcc-2.95.* for PPC
1.165     anton     312:                test x$ac_cv_sizeof_long_long = x && 
1.238     anton     313:                ($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) &&
1.263     anton     314:                      ac_cv_sizeof_long_long=0
1.203     anton     315:                 #The only architecture with enough callee-saved registers
                    316:                 test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
                    317:                 #or use 2, hardly slower at run-time and starts up faster
1.263     anton     318: 
                    319:                 #the skipcode that is normally selected below does not
                    320:                 #work with gcc-3.[34]
                    321:                test "$skipcode" || skipcode="nop\nnop\nnop\nnop"
1.31      anton     322:                ;;
1.1       anton     323:        *)
1.92      anton     324:                AC_MSG_WARN([Using a generic machine description])
                    325:                AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
                    326:                AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34      anton     327:                machine=generic
1.97      anton     328:                #I-cache flushing would be needed for dynamic code generation
1.136     anton     329:                if test -z $no_dynamic_default; then
                    330:                    no_dynamic_default=1
                    331:                    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    332:                fi
1.1       anton     333: esac
1.10      anton     334: AC_SUBST(host)
1.151     anton     335: 
1.184     pazsan    336: MAKEINC=""
1.276     pazsan    337: GFORTH_EXE="true"
1.184     pazsan    338: 
                    339: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
1.183     pazsan    340: if test x$EC_MODE = xtrue
                    341: then
1.184     pazsan    342:        echo "Check for arch/$machine/$platform/gforth.ld"
                    343:        if test -f arch/$machine/$platform/gforth.ld
1.183     pazsan    344:        then
1.184     pazsan    345:                LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
                    346:                if test x$platform = xnxt; then
1.183     pazsan    347:                        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 $LIBS"
                    348:                fi
                    349:        fi
1.184     pazsan    350:        if test -f arch/$machine/$platform/make.inc
                    351:        then
                    352:                MAKEINC="include ../arch/$machine/$platform/make.inc"
1.276     pazsan    353:                GFORTH_EXE="\$(MAKE) -f arch/$machine/$platform/make.inc \$@.exe"
1.184     pazsan    354:        fi
1.183     pazsan    355: fi
1.184     pazsan    356: AC_SUBST(MAKEINC)
1.183     pazsan    357: 
1.203     anton     358: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
                    359: 
                    360: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
                    361: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
                    362:                   [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
1.151     anton     363: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
                    364: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
                    365:                   [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146     pazsan    366: 
1.173     anton     367: test x$GCC_PR15242_WORKAROUND = x ||
                    368: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
                    369:                    [force (1) or forbid (0) use of a workaround for a gcc performance bug])
                    370: 
1.103     anton     371: dnl the following macro produces a warning with autoconf-2.1
                    372: AC_CHECK_SIZEOF(char *)
                    373: case "$ac_cv_sizeof_char_p" in
                    374:   2)
                    375:     wordsize=16
                    376:     ;;
                    377:   4)
                    378:     wordsize=32
                    379:     ;;
                    380:   8)
                    381:     wordsize=64
                    382:     ;;
                    383: esac
                    384: 
1.183     pazsan    385: AC_CHECK_SIZEOF(void *)
                    386: case "$ac_cv_sizeof_void_p" in
                    387:   2)
                    388:     vwordsize=16
                    389:     ;;
                    390:   4)
                    391:     vwordsize=32
                    392:     ;;
                    393:   8)
                    394:     vwordsize=64
                    395:     ;;
                    396: esac
                    397: 
1.103     anton     398: AC_CHECK_SIZEOF(char)
                    399: AC_CHECK_SIZEOF(short)
                    400: AC_CHECK_SIZEOF(int)
                    401: AC_CHECK_SIZEOF(long)
                    402: AC_CHECK_SIZEOF(long long)
                    403: AC_CHECK_SIZEOF(intptr_t)
                    404: AC_CHECK_SIZEOF(int128_t)
1.144     pazsan    405: AC_CHECK_SIZEOF(uint128_t)
1.103     anton     406: 
                    407: AC_MSG_CHECKING([for a C type for cells])
                    408: ac_cv_int_type_cell=none
                    409: case "$ac_cv_sizeof_char_p" in
                    410:   $ac_cv_sizeof_int)
                    411:     ac_cv_int_type_cell=int
                    412:     ;;
                    413:   $ac_cv_sizeof_short)
                    414:     ac_cv_int_type_cell=short
                    415:     ;;
                    416:   $ac_cv_sizeof_char)
                    417:     ac_cv_int_type_cell=char
                    418:     ;;
                    419:   $ac_cv_sizeof_long)
                    420:     ac_cv_int_type_cell=long
                    421:     ;;
                    422:   $ac_cv_sizeof_long_long)
                    423:     ac_cv_int_type_cell="long long"
                    424:     ;;
                    425:   $ac_cv_sizeof_intptr_t)
                    426:     ac_cv_int_type_cell="intptr_t"
                    427:     ;;
                    428: esac
                    429: AC_MSG_RESULT($ac_cv_int_type_cell)
                    430: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
                    431: 
1.153     pazsan    432: AC_MSG_CHECKING([for a C type for wydes])
                    433: ac_cv_wyde_type_cell=none
                    434: case 2 in
                    435:   $ac_cv_sizeof_int)
                    436:     ac_cv_wyde_type_cell=int
                    437:     ;;
                    438:   $ac_cv_sizeof_short)
                    439:     ac_cv_wyde_type_cell=short
                    440:     ;;
                    441:   $ac_cv_sizeof_char)
                    442:     ac_cv_wyde_type_cell=char
                    443:     ;;
                    444:   $ac_cv_sizeof_long)
                    445:     ac_cv_wyde_type_cell=long
                    446:     ;;
                    447:   $ac_cv_sizeof_long_long)
                    448:     ac_cv_wyde_type_cell="long long"
                    449:     ;;
                    450:   $ac_cv_sizeof_intptr_t)
                    451:     ac_cv_wyde_type_cell="intptr_t"
                    452:     ;;
                    453: esac
                    454: AC_MSG_RESULT($ac_cv_wyde_type_cell)
                    455: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
                    456: 
                    457: AC_MSG_CHECKING([for a C type for tetrabytes])
                    458: ac_cv_tetrabyte_type_cell=none
                    459: case 4 in
                    460:   $ac_cv_sizeof_int)
                    461:     ac_cv_tetrabyte_type_cell=int
                    462:     ;;
                    463:   $ac_cv_sizeof_short)
                    464:     ac_cv_tetrabyte_type_cell=short
                    465:     ;;
                    466:   $ac_cv_sizeof_char)
                    467:     ac_cv_tetrabyte_type_cell=char
                    468:     ;;
                    469:   $ac_cv_sizeof_long)
                    470:     ac_cv_tetrabyte_type_cell=long
                    471:     ;;
                    472:   $ac_cv_sizeof_long_long)
                    473:     ac_cv_tetrabyte_type_cell="long long"
                    474:     ;;
                    475:   $ac_cv_sizeof_intptr_t)
                    476:     ac_cv_tetrabyte_type_cell="intptr_t"
                    477:     ;;
                    478: esac
                    479: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
                    480: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
                    481: 
1.277     pazsan    482: AC_MSG_CHECKING([for a C type for octabytes])
                    483: ac_cv_octabyte_type_cell=none
                    484: case 8 in
                    485:   $ac_cv_sizeof_int)
                    486:     ac_cv_octabyte_type_cell=int
                    487:     ;;
                    488:   $ac_cv_sizeof_short)
                    489:     ac_cv_octabyte_type_cell=short
                    490:     ;;
                    491:   $ac_cv_sizeof_char)
                    492:     ac_cv_octabyte_type_cell=char
                    493:     ;;
                    494:   $ac_cv_sizeof_long)
                    495:     ac_cv_octabyte_type_cell=long
                    496:     ;;
                    497:   $ac_cv_sizeof_long_long)
                    498:     ac_cv_octabyte_type_cell="long long"
                    499:     ;;
                    500:   $ac_cv_sizeof_intptr_t)
                    501:     ac_cv_octabyte_type_cell="intptr_t"
                    502:     ;;
                    503: esac
                    504: AC_MSG_RESULT($ac_cv_octabyte_type_cell)
                    505: AC_DEFINE_UNQUOTED(OCTABYTE_TYPE,$ac_cv_octabyte_type_cell,[an integer type that is 8 bytes long])
                    506: 
1.103     anton     507: AC_MSG_CHECKING([for a C type for double-cells])
                    508: ac_cv_int_type_double_cell=none
                    509: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    510:   $ac_cv_sizeof_short)
                    511:     ac_cv_int_type_double_cell=short
                    512:     ;;
                    513:   $ac_cv_sizeof_int)
                    514:     ac_cv_int_type_double_cell=int
                    515:     ;;
                    516:   $ac_cv_sizeof_long)
                    517:     ac_cv_int_type_double_cell=long
                    518:     ;;
                    519:   $ac_cv_sizeof_long_long)
                    520:     ac_cv_int_type_double_cell="long long"
                    521:     ;;
                    522:   $ac_cv_sizeof_intptr_t)
                    523:     ac_cv_int_type_double_cell="intptr_t"
                    524:     ;;
1.205     anton     525:   $ac_cv_sizeof_int128_t)
1.103     anton     526:     ac_cv_int_type_double_cell="int128_t"
                    527:     ;;
                    528: esac
                    529: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144     pazsan    530: 
                    531: AC_MSG_CHECKING([for a C type for unsigned double-cells])
                    532: ac_cv_int_type_double_ucell=none
                    533: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    534:   $ac_cv_sizeof_short)
                    535:     ac_cv_int_type_double_ucell="unsigned short"
                    536:     ;;
                    537:   $ac_cv_sizeof_int)
                    538:     ac_cv_int_type_double_ucell="unsigned int"
                    539:     ;;
                    540:   $ac_cv_sizeof_long)
                    541:     ac_cv_int_type_double_ucell="unsigned long"
                    542:     ;;
                    543:   $ac_cv_sizeof_long_long)
                    544:     ac_cv_int_type_double_ucell="unsigned long long"
                    545:     ;;
                    546:   $ac_cv_sizeof_intptr_t)
                    547:     ac_cv_int_type_double_ucell="unsigned intptr_t"
                    548:     ;;
                    549:   $ac_cv_sizeof_uint128_t)
                    550:     ac_cv_int_type_double_ucell="uint128_t"
                    551:     ;;
                    552: esac
                    553: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
                    554: 
1.204     anton     555: if test "$ac_cv_int_type_double_cell" != none && \
                    556:    test "$ac_cv_int_type_double_ucell" != none
1.144     pazsan    557: then
1.103     anton     558:        AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144     pazsan    559:        AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.206     anton     560:         OPTS=-ll
                    561: else
1.217     pazsan    562:         if test "$ac_cv_sizeof_char_p" = 8; then
1.213     anton     563:            OPTS="-ll -noll"
1.206     anton     564:         else
                    565:            OPTS=-noll
                    566:         fi
1.103     anton     567: fi
1.207     anton     568: 
1.258     anton     569: if grep FORCE_REG $srcdir/arch/$machine/machine.h >/dev/null; then
1.227     pazsan    570:    OPTS2=''
                    571:    for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done
                    572:    OPTS="$OPTS2 $OPTS"
1.223     anton     573: else
                    574:   AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG])
1.207     anton     575: fi
1.206     anton     576: AC_SUBST(OPTS)
1.103     anton     577: 
                    578: AC_TYPE_OFF_T
                    579: AC_CHECK_SIZEOF(off_t)
                    580: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
                    581: ac_small_off_t=$?
                    582: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1       anton     583: 
1.109     anton     584: ENGINE_FLAGS=
                    585: AC_SUBST(ENGINE_FLAGS)
                    586: 
                    587: # Try if GCC understands -fno-gcse
                    588: 
                    589: AC_MSG_CHECKING([if $CC understands -fno-gcse])
                    590: CFLAGS_1="$CFLAGS"
                    591: CFLAGS="$CFLAGS -fno-gcse"
                    592: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
                    593: CFLAGS="$CFLAGS_1"
                    594: AC_MSG_RESULT($ac_nogcse)
                    595: 
                    596: # Try if GCC understands -fno-strict-aliasing
                    597: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
                    598: CFLAGS_1="$CFLAGS"
                    599: CFLAGS="$CFLAGS -fno-strict-aliasing"
                    600: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
                    601: CFLAGS="$CFLAGS_1"
                    602: AC_MSG_RESULT($ac_nostrictaliasing)
                    603: 
1.123     anton     604: # Try if GCC understands -fno-crossjumping
                    605: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88      pazsan    606: CFLAGS_1="$CFLAGS"
1.123     anton     607: CFLAGS="$CFLAGS -fno-crossjumping"
1.125     anton     608: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109     anton     609: CFLAGS="$CFLAGS_1"
1.124     pazsan    610: AC_MSG_RESULT($ac_nocrossjumping)
1.88      pazsan    611: 
1.137     pazsan    612: # Try if GCC understands -fno-reorder-blocks
                    613: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
                    614: CFLAGS_1="$CFLAGS"
                    615: CFLAGS="$CFLAGS -fno-reorder-blocks"
                    616: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
                    617: CFLAGS="$CFLAGS_1"
                    618: AC_MSG_RESULT($ac_noreorder_blocks)
                    619: 
1.189     anton     620: # Try if GCC understands -falign-labels=1
                    621: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
                    622: CFLAGS_1="$CFLAGS"
                    623: CFLAGS="$CFLAGS -falign-labels=1"
1.194     anton     624: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
1.189     anton     625: CFLAGS="$CFLAGS_1"
                    626: AC_MSG_RESULT($ac_align_labels)
                    627: 
1.193     anton     628: # Try if GCC understands -falign-loops=1
                    629: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
                    630: CFLAGS_1="$CFLAGS"
                    631: CFLAGS="$CFLAGS -falign-loops=1"
1.194     anton     632: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
1.193     anton     633: CFLAGS="$CFLAGS_1"
                    634: AC_MSG_RESULT($ac_align_loops)
                    635: 
                    636: # Try if GCC understands -falign-jumps=1
                    637: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
                    638: CFLAGS_1="$CFLAGS"
                    639: CFLAGS="$CFLAGS -falign-jumps=1"
1.194     anton     640: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
1.193     anton     641: CFLAGS="$CFLAGS_1"
                    642: AC_MSG_RESULT($ac_align_jumps)
                    643: 
1.271     anton     644: if test -z "$LIBTOOL_CC"
                    645: then
                    646:   LIBTOOL_CC="$CC"
                    647:   # Try if GCC understands -Wimplicit-function-declaration
                    648:   AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration])
                    649:   CFLAGS_1="$CFLAGS"
                    650:   CFLAGS="$CFLAGS -Wimplicit-function-declaration"
                    651:   AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",)
                    652:   CFLAGS="$CFLAGS_1"
                    653:   AC_MSG_RESULT($ac_align_jumps)
                    654: fi
                    655: AC_SUBST(LIBTOOL_CC)
                    656: 
                    657: 
                    658: 
1.130     anton     659: # Try if GCC understands __attribute__((unused))
                    660: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
                    661: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
                    662: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
                    663: AC_MSG_RESULT($MAYBE_UNUSED)
                    664: 
1.195     anton     665: #try if m4 understands -s
                    666: AC_MSG_CHECKING([how to invoke m4])
1.196     anton     667: if m4 -s /dev/null >/dev/null 2>&1; then
1.195     anton     668:  M4="m4 -s"
                    669: else
                    670:  M4=m4
                    671: fi
                    672: AC_SUBST(M4)
                    673: AC_MSG_RESULT($M4)
                    674: 
1.202     pazsan    675: # Find installed Gforth
                    676: AC_MSG_CHECKING([for gforth])
1.215     anton     677: GFORTH="`cd / && which gforth 2>/dev/null`"
1.257     anton     678: #the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
                    679: (cd / && $GFORTH -e bye >/dev/null 2>/dev/null  && test "$srcdir" = ".") || GFORTH=""
1.215     anton     680: if test -z "$GFORTH"; then
1.223     anton     681:   PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
1.233     anton     682:   kernel_anti_dependence=''
1.215     anton     683: else
1.239     anton     684:   PREFORTH="$GFORTH -i `cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`" ;
1.233     anton     685:   kernel_anti_dependence='$(kernel_fi)'
1.215     anton     686: fi
                    687: AC_SUBST(PREFORTH)
1.233     anton     688: AC_SUBST(kernel_anti_dependence)
1.215     anton     689: AC_MSG_RESULT($PREFORTH)
1.202     pazsan    690: 
1.215     anton     691: #echo "machine='$machine'"
1.191     anton     692: 
                    693: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.275     pazsan    694: if test x$EC_MODE = xfalse
                    695: then
1.278   ! dvdkhlng  696:   AS_IF([test -f $srcdir/arch/$machine/asm.fs],
        !           697:         [asm_fs=arch/$machine/asm.fs])
1.275     pazsan    698: fi
1.61      anton     699: AC_SUBST(asm_fs)
                    700: 
1.191     anton     701: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.275     pazsan    702: if test x$EC_MODE = xfalse
                    703: then
1.278   ! dvdkhlng  704:   AS_IF([test -f $srcdir/arch/$machine/disasm.fs],
        !           705:        [disasm_fs=arch/$machine/disasm.fs])
1.275     pazsan    706: fi
1.61      anton     707: AC_SUBST(disasm_fs)
                    708: 
1.116     anton     709: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114     anton     710: 
1.39      pazsan    711: case "$host_os" in
1.157     pazsan    712:        *win32*)
                    713:                # !!!FIXME!!! problems with cygwin and ';' as path separator
1.108     anton     714:                DIRSEP="\\\\"
1.127     anton     715:                PATHSEP=";"
1.142     anton     716:                #we want the builtins of command.com/cmd.exe and its
                    717:                # handling of .com files.
                    718:                #$COMSPEC contains the name of the Windows shell;
                    719:                # the ./ is there, because the bash does not recognize
                    720:                # absolute DOS filenames
                    721:                DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39      pazsan    722:                ;;
1.97      anton     723:        *darwin*)
                    724:                #Darwin uses some funny preprocessor by default; eliminate it:
1.127     anton     725:                AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120     anton     726:                CFLAGS="$CFLAGS -no-cpp-precomp"
1.98      anton     727:                DIRSEP="/"
1.127     anton     728:                PATHSEP=":"
1.141     anton     729:                DEFAULTSYSTEMPREFIX=""
1.243     anton     730:                 #the following magic value was suggested by
                    731:                 #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
                    732:                 AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
1.98      anton     733:                ;;
1.246     pazsan    734:        *linux*)
                    735:                DIRSEP="/"
                    736:                PATHSEP=":"
                    737:                DEFAULTSYSTEMPREFIX=""
1.250     anton     738:                if test -z "$LTDL_LIBRARY_PATH" -a "$wordsize" = 64; then
1.253     pazsan    739:                   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    740:                fi
                    741:                ;;
1.39      pazsan    742:        *)
1.88      pazsan    743:                DIRSEP="/"
1.127     anton     744:                PATHSEP=":"
1.141     anton     745:                DEFAULTSYSTEMPREFIX=""
1.39      pazsan    746:                ;;
                    747: esac
1.88      pazsan    748: AC_SUBST(DIRSEP)
1.89      pazsan    749: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127     anton     750: AC_SUBST(PATHSEP)
                    751: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141     anton     752: AC_SUBST(DEFAULTSYSTEMPREFIX)
                    753: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.250     anton     754: if test -n "$LTDL_LIBRARY_PATH"; then
                    755:    AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux])
                    756: fi                                                                
1.39      pazsan    757: 
1.170     anton     758: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
1.172     anton     759: #This magic incantation  seems to be completely undocumented.
                    760: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
1.170     anton     761: 
1.1       anton     762: dnl Now a little support for DOS/DJGCC
1.276     pazsan    763: GFORTHFAST_EXE="$GFORTH_EXE"
                    764: GFORTHITC_EXE="$GFORTH_EXE"
                    765: GFORTHDITC_EXE="$GFORTH_EXE"
1.30      pazsan    766: AC_SUBST(GFORTH_EXE)
1.48      anton     767: AC_SUBST(GFORTHFAST_EXE)
1.83      anton     768: AC_SUBST(GFORTHITC_EXE)
1.30      pazsan    769: AC_SUBST(GFORTHDITC_EXE)
1.27      anton     770: 
                    771: AC_SUBST(FORTHSIZES)
1.24      anton     772: 
1.104     anton     773: dnl if test "$PEEPHOLE" = "yes"
                    774: dnl then
                    775: dnl    PEEPHOLEFLAG="true"
                    776: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
                    777: dnl else
                    778: dnl    PEEPHOLEFLAG="false"
                    779: dnl fi
                    780: PEEPHOLEFLAG="true"
1.79      pazsan    781: AC_SUBST(PEEPHOLEFLAG)
                    782: 
1.1       anton     783: dnl copy commands for systems that don't have links
1.29      pazsan    784: AC_SUBST(LINK_KERNL)
                    785: LINK_KERNL=""
1.1       anton     786: 
                    787: #if test $host_os=dos
                    788: #then
                    789: #  echo Configuring for DOS!!!
                    790: #  MAKE_EXE="coff2exe gforth"
1.29      pazsan    791: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1       anton     792: #fi
                    793: 
                    794: dnl the following macro produces a warning with autoconf-2.1
                    795: AC_C_BIGENDIAN
1.23      pazsan    796: AC_SUBST(KERNEL)
1.1       anton     797: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
1.256     pazsan    798: if test $ac_cv_c_bigendian != no; then
1.1       anton     799:   bytesex=b
1.23      pazsan    800:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1       anton     801: else
                    802:   bytesex=l
1.23      pazsan    803:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1       anton     804: fi
                    805: 
1.91      anton     806: #check how to do asm(".skip 16")
1.169     anton     807: #echo "CFLAGS=$CFLAGS"
                    808: #echo "ac_link=$ac_link"
1.92      anton     809: AC_MSG_CHECKING([if and how we can waste code space])
1.136     anton     810: if test -z "$skipcode"; then
1.148     anton     811:     skipcode=no
                    812:     CFLAGS_1="$CFLAGS"
                    813:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136     anton     814:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
                    815:     do
1.91      anton     816:        AC_TRY_RUN(
1.136     anton     817: [int foo(int,int,int);
1.91      anton     818: main()
                    819: {
1.136     anton     820:   exit(foo(0,0,0)!=16);
1.91      anton     821: }
1.136     anton     822: int foo(int x, int y, int z)
1.91      anton     823: {
1.136     anton     824:   static void *labels[]={&&label1, &&label2};
1.91      anton     825:   if (x) {
1.136     anton     826:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91      anton     827:   label1:
1.148     anton     828:     asm("$i"); /* or ".space 16" or somesuch */
1.136     anton     829:   label2: ;
                    830:   }
                    831:   {
                    832:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
                    833:   return labels[1]-labels[0];
1.91      anton     834:   }
1.136     anton     835: }]
1.92      anton     836:        ,skipcode=$i; break
                    837:        ,,)
1.136     anton     838:     done
1.148     anton     839:     CFLAGS=$CFLAGS_1
1.136     anton     840: fi
1.92      anton     841: AC_MSG_RESULT($skipcode)
                    842: if test "$skipcode" = no
                    843: then 
1.136     anton     844:     if test -z $no_dynamic_default; then
                    845:        no_dynamic_default=1
                    846:        AC_MSG_WARN(Disabling default dynamic native code generation)
                    847:     fi
1.92      anton     848:     AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
                    849: else
                    850:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
                    851: fi
1.91      anton     852: 
1.174     anton     853: AC_MSG_CHECKING([if and how we can do comments in asm statements])
                    854: #the point here is to get asm statements that look different to
                    855: #gcc's "optimizer"
                    856: if test -z "$asmcomment"; then
                    857:     asmcomment=no
                    858:     CFLAGS_1="$CFLAGS"
                    859:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.176     anton     860:     for i in '"# "' '"! "' '"; "'; do
1.174     anton     861:        AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
                    862:     done
                    863:     CFLAGS=$CFLAGS_1
                    864: fi
                    865: AC_MSG_RESULT($asmcomment)
                    866: if test "$asmcomment" != no
                    867: then 
                    868:     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
                    869: fi
                    870: 
1.136     anton     871: test "$no_dynamic_default" || no_dynamic_default=0
1.92      anton     872: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91      anton     873: 
1.1       anton     874: dnl Checks for programs.
                    875: AC_PROG_LN_S
1.95      anton     876: AC_PROG_INSTALL
1.163     pazsan    877: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
1.1       anton     878: 
1.198     anton     879: dnl MacOS X has a libtool that does something else
1.264     pazsan    880: AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
1.198     anton     881: 
1.269     anton     882: dnl Checks for library functions
                    883: dnl This check is just for making later checks link with libm.
                    884: dnl using sin here is no good idea since it is built-into gcc and typechecked
                    885: AC_CHECK_LIB(m,asin)
                    886: AC_CHECK_LIB(ltdl,lt_dlinit)
                    887: 
                    888: if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
1.258     anton     889:   build_libcc_named=build-libcc-named
                    890: else
                    891:   build_libcc_named=""
1.274     anton     892:   AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries])
1.258     anton     893: fi
                    894: AC_SUBST(build_libcc_named)
                    895: 
1.274     anton     896: 
                    897: if test -z "$GNU_LIBTOOL"; then
                    898:   AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.])
                    899:   AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.])
                    900:   GNU_LIBTOOL=libtool
                    901: fi
                    902: 
1.235     anton     903: #check for libffi 2.x
1.237     anton     904: AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
                    905: if test -z "$FFI_H_NAME"; then
                    906:   AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
                    907: fi
                    908: AC_SUBST(FFI_H_NAME)
1.235     anton     909: AC_CHECK_LIB(ffi,ffi_call)
1.241     anton     910: if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
1.235     anton     911: then
                    912:   LIBFFIFLAG="true"
1.236     anton     913:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs"
1.235     anton     914: else
                    915:   LIBFFIFLAG="false"
                    916: fi
                    917: #check for ffcall libraries
                    918: #unfortunately, these four calls are separated out into a library each.
                    919: AC_CHECK_LIB(avcall,__builtin_avcall)
1.234     pazsan    920: dnl AC_CHECK_LIB(callback,__vacall_r)
                    921: dnl AC_CHECK_LIB(vacall,vacall)
                    922: dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
1.235     anton     923: if test $ac_cv_lib_avcall___builtin_avcall = yes; then
                    924:   FFCALLFLAG="true"
1.236     anton     925:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs"
1.235     anton     926: else
                    927:   FFCALLFLAG="false"
                    928: fi
                    929: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then
                    930:   AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries])
                    931: fi
                    932: AC_SUBST(LIBFFIFLAG)
                    933: AC_SUBST(FFCALLFLAG)
1.236     anton     934: AC_SUBST(LIBCC_BUILD_SRC)
1.32      pazsan    935: if test "$host_os" != "nextstep3"
                    936: then
                    937:        AC_FUNC_MEMCMP
                    938: fi
1.25      pazsan    939: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97      anton     940: AC_FUNC_FSEEKO
1.186     anton     941: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
1.111     anton     942: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19      anton     943: AC_DECL_SYS_SIGLIST
1.138     anton     944: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90      anton     945: AC_CHECK_FUNCS(expm1 log1p)
                    946: AC_REPLACE_FUNCS(rint ecvt)
1.1       anton     947: dnl No check for select, because our replacement is no good under
                    948: dnl anything but DOS
1.277     pazsan    949: AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h endian.h)
1.63      anton     950: AC_FUNC_FNMATCH
1.87      pazsan    951: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.255     anton     952: AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth)
1.34      anton     953: AM_PATH_LISPDIR
1.1       anton     954: 
1.183     pazsan    955: kernel_fi=kernl${vwordsize}${bytesex}.fi
1.178     pazsan    956: include_fi=kernl${wordsize}${bytesex}${EC}.fi
1.23      pazsan    957: AC_SUBST(kernel_fi)
1.178     pazsan    958: AC_SUBST(include_fi)
1.50      jwilke    959: 
1.76      anton     960: #this breaks bindists
                    961: #dnl replace srource directory by absolute value
                    962: #if test $srcdir = "."; then srcdir=`pwd` 
                    963: #fi
1.8       anton     964: 
1.34      anton     965: AC_SUBST(machine)
1.95      anton     966: AC_CONFIG_FILES([
1.31      anton     967: Makefile
1.45      pazsan    968: Makedist
1.43      anton     969: gforthmi
1.80      anton     970: vmgen
1.79      pazsan    971: machpc.fs
1.159     pazsan    972: envos.fs
1.223     anton     973: preforth
1.35      anton     974: engine/Makefile
1.188     anton     975: engine/libcc.h
1.161     pazsan    976: doc/version.texi
                    977: build-ec ])
1.95      anton     978: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43      anton     979: chmod +x gforthmi
1.80      anton     980: chmod +x vmgen
1.162     pazsan    981: chmod +x build-ec
1.223     anton     982: chmod +x preforth
1.188     anton     983: test -d kernel||mkdir kernel
1.258     anton     984: if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi
1.188     anton     985: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
1.262     anton     986: $srcdir/mkinstalldirs arch/$machine
                    987: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],
                    988: [PACKAGE_VERSION=$PACKAGE_VERSION
                    989:  machine=$machine])
1.95      anton     990: AC_OUTPUT

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