Annotation of gforth/configure.in, revision 1.288

1.1       anton       1: dnl Process this file with autoconf to produce a configure script.
1.20      anton       2: 
1.287     anton       3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc.
1.20      anton       4: 
                      5: #This file is part of Gforth.
                      6: 
                      7: #Gforth is free software; you can redistribute it and/or
                      8: #modify it under the terms of the GNU General Public License
1.201     anton       9: #as published by the Free Software Foundation, either version 3
1.20      anton      10: #of the License, or (at your option) any later version.
                     11: 
                     12: #This program is distributed in the hope that it will be useful,
                     13: #but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14: #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the
                     15: #GNU General Public License for more details.
                     16: 
                     17: #You should have received a copy of the GNU General Public License
1.201     anton      18: #along with this program. If not, see http://www.gnu.org/licenses/.
1.20      anton      19: 
1.121     anton      20: 
1.34      anton      21: dnl We use some automake macros here,
                     22: dnl but don't use automake for creating Makefile.in
1.285     pazsan     23: AC_INIT([gforth],[0.7.9-20101227],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
1.113     anton      24: AC_PREREQ(2.54)
1.47      anton      25: #snapshots have numbers major.minor.release-YYYYMMDD
1.92      anton      26: #note that lexicographic ordering must be heeded.
1.47      anton      27: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
1.285     pazsan     28: UPDATED="December 27, 2010"
1.84      anton      29: AC_SUBST(UPDATED)
1.94      anton      30: AC_CONFIG_HEADERS(engine/config.h)
1.14      anton      31: 
1.225     anton      32: #remnants from having ltdl as convenience library
                     33: LTDLDEPS=""
                     34: LTDLINCL=""
                     35: LIBLTDL=""
                     36: LTDL_LDLIBS=""
                     37: AC_SUBST(LTDLDEPS)
                     38: AC_SUBST(LTDLINCL)
                     39: AC_SUBST(LIBLTDL)
1.219     anton      40: AC_SUBST(LTDL_LDLIBS)
                     41: 
1.121     anton      42: #suppress the "-g -O2" default
                     43: test "$CFLAGS" || CFLAGS=-O2
                     44: 
1.150     pazsan     45: AC_ARG_ENABLE(force-cdiv,
                     46:        AC_HELP_STRING([--enable-force-cdiv],
                     47:                       [  Use the native C division - symmetric - instead of
                     48:                          floored division (default disabled).]),
                     49:        ,enable_force_cdiv=no)
                     50: test "$enable_force_cdiv" = "no"||
                     51:   AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance])
                     52: 
1.149     anton      53: AC_SUBST(PROFEXES)
                     54: AC_SUBST(PROFOBJS)
1.135     anton      55: AC_ARG_ENABLE(prof,
1.149     anton      56:        AC_HELP_STRING([--enable-prof],
                     57:                        [ Build gforth-prof, which outputs frequently occuring
                     58:                           sequences of primitives.]),
                     59:        ,enable_prof=no)
1.204     anton      60: if test "$enable_prof" != "no"; then
                     61:   PROFEXES='gforth-prof$(OPT)$(EXE)'; PROFOBJS='engine-prof$(OPT).o main-prof$(OPT).o profile$(OPT).o'
1.149     anton      62: fi
1.1       anton      63: 
1.9       pazsan     64: AC_ARG_WITH(debug,
1.122     pazsan     65: [  --with-debug                  specifies option -g to compile with debug info
                     66:   --without-debug        omits the -g switch and creates smaller images on
                     67:                          machines where "strip" has problems with gcc style
                     68:                          debugging informations.],
1.9       pazsan     69: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
1.122     pazsan     70: 
1.185     pazsan     71: GCC_LD="\$(GCC)"
                     72: EC_MODE="false"
1.275     pazsan     73: NO_EC=""
1.185     pazsan     74: EC=""
1.204     anton      75: engine2='engine2$(OPT).o'
                     76: engine_fast2='engine-fast2$(OPT).o'
1.185     pazsan     77: no_dynamic=""
                     78: image_i=""
                     79: signals_o="io.o signals.o"
                     80: 
1.275     pazsan     81: AC_CANONICAL_HOST
1.182     pazsan     82: AC_ARG_WITH(ec,
                     83:        AC_HELP_STRING([--with-ec=<arch>],
1.168     pazsan     84:                        [  Build gforth for systems without OS.]),
1.182     pazsan     85: [if test "$withval" = "no"; then
                     86:   echo "defining hosted system"
                     87: else
                     88:   echo "defining standalone system (${withval})"
1.168     pazsan     89:   AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
1.167     pazsan     90:   EC_MODE="true"
1.178     pazsan     91:   EC="-ec"
1.275     pazsan     92:   NO_EC="#"
1.178     pazsan     93:   engine2=""
                     94:   engine_fast2=""
                     95:   no_dynamic="-DNO_DYNAMIC"
                     96:   image_i="image.i"
1.182     pazsan     97:   if test "$withval" != "yes"; then
                     98:     signals_o="io-${withval}.o"
                     99:   else
                    100:     signals_o="io.o"
                    101:   fi
1.275     pazsan    102:   if test -f "arch/$host_cpu/${withval}/config.sh"; then
                    103:     source "arch/$host_cpu/${withval}/config.sh"
                    104:   fi
1.183     pazsan    105:   GCC_PATH=$(which $CC)
                    106:   LIB_PATH=${GCC_PATH%/*/*}
                    107:   GCC_LD="\$(LD)"
1.184     pazsan    108:   platform=${withval}
1.182     pazsan    109: fi])
1.167     pazsan    110: 
1.104     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
1.282     dvdkhlng  245:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
                    246:                CFLAGS_1="$CFLAGS"
                    247:                CFLAGS="$CFLAGS -march=i486"
                    248:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
                    249:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
1.31      anton     250:                ;;
1.77      anton     251:        i*86)
1.34      anton     252:                machine=386
1.189     anton     253:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
1.56      pazsan    254:                CFLAGS_1="$CFLAGS"
1.282     dvdkhlng  255:                CFLAGS="$CFLAGS -march=pentium -mtune=generic"
                    256:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -march=pentium")
1.56      pazsan    257:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.282     dvdkhlng  258:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
1.1       anton     259:                ;;
1.133     anton     260:        x86_64)
1.192     pazsan    261:                case $CC
                    262:                in
                    263:                    *-m32*)
                    264:                        machine=386
                    265:                        CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
                    266:                        CFLAGS_1="$CFLAGS"
                    267:                        CFLAGS="$CFLAGS -march=athlon64"
                    268:                        ;;
                    269:                    *)
                    270:                        machine=amd64
                    271:                        ;;
                    272:                esac
1.133     anton     273:                ;;
1.136     anton     274:        ia64*)
                    275:                machine=ia64
                    276:                AC_LIBOBJ(../arch/ia64/flush_icache_block)
                    277:                test "$skipcode" || skipcode="nop.i 0"
                    278:                #".skip 16" passes the test below,
                    279:                # but gives an assembler error in engine
                    280:                ;;
1.26      pazsan    281:         m68k)
1.34      anton     282:                machine=m68k
1.32      pazsan    283:                CFLAGS="$CFLAGS -fomit-frame-pointer"
                    284:                if test "$host_os" = "nextstep3"
                    285:                then
1.87      pazsan    286:                        AC_LIBOBJ(termios)
1.32      pazsan    287:                fi
1.26      pazsan    288:                ;;
1.1       anton     289:        mips*)
1.34      anton     290:                machine=mips
1.281     dvdkhlng  291:                AC_LIBOBJ(../arch/mips/check_prim) 
1.92      anton     292:                #dynamic native code has the following problems on MIPS:
                    293:                #
                    294:                #1) J/JAL seems relocatable, but is are only
                    295:                #relocatable within a 256MB-segment.  While we try to
                    296:                #get the linker to arrange this, there is no guarantee
                    297:                #that this will succeed (and if the user uses a lot of
                    298:                #memory, it is likely to fail).
                    299:                #
                    300:                #2) The way we generate dynamic native code may
                    301:                #violate MIPS architectural restrictions (in
                    302:                #particular, the delay slots of LW, MFLO, etc.)
                    303:                #
                    304:                #Therefore we disable dynamic native code by default:
1.255     anton     305:                if test -z "$no_dynamic_default"; then
1.136     anton     306:                    no_dynamic_default=1
                    307:                    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
                    308:                fi
1.1       anton     309:                ;;
1.9       pazsan    310:        alpha*)
1.34      anton     311:                machine=alpha
1.58      anton     312:                #full IEEE FP support for more uniformity across platforms:
                    313:                CFLAGS="$CFLAGS -mieee"
1.9       pazsan    314:                ;;
1.69      anton     315:        power*|rs6000)
1.34      anton     316:                machine=power
1.138     anton     317:                AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103     anton     318:                #long long is broken on (at least) gcc-2.95.* for PPC
1.165     anton     319:                test x$ac_cv_sizeof_long_long = x && 
1.238     anton     320:                ($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) &&
1.263     anton     321:                      ac_cv_sizeof_long_long=0
1.203     anton     322:                 #The only architecture with enough callee-saved registers
                    323:                 test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
                    324:                 #or use 2, hardly slower at run-time and starts up faster
1.263     anton     325: 
                    326:                 #the skipcode that is normally selected below does not
                    327:                 #work with gcc-3.[34]
                    328:                test "$skipcode" || skipcode="nop\nnop\nnop\nnop"
1.31      anton     329:                ;;
1.1       anton     330:        *)
1.92      anton     331:                AC_MSG_WARN([Using a generic machine description])
                    332:                AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
                    333:                AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34      anton     334:                machine=generic
1.97      anton     335:                #I-cache flushing would be needed for dynamic code generation
1.136     anton     336:                if test -z $no_dynamic_default; then
                    337:                    no_dynamic_default=1
                    338:                    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    339:                fi
1.1       anton     340: esac
1.10      anton     341: AC_SUBST(host)
1.151     anton     342: 
1.184     pazsan    343: MAKEINC=""
1.276     pazsan    344: GFORTH_EXE="true"
1.184     pazsan    345: 
                    346: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
1.183     pazsan    347: if test x$EC_MODE = xtrue
                    348: then
1.184     pazsan    349:        echo "Check for arch/$machine/$platform/gforth.ld"
                    350:        if test -f arch/$machine/$platform/gforth.ld
1.183     pazsan    351:        then
1.184     pazsan    352:                LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
                    353:                if test x$platform = xnxt; then
1.183     pazsan    354:                        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 $LIBS"
                    355:                fi
                    356:        fi
1.184     pazsan    357:        if test -f arch/$machine/$platform/make.inc
                    358:        then
                    359:                MAKEINC="include ../arch/$machine/$platform/make.inc"
1.276     pazsan    360:                GFORTH_EXE="\$(MAKE) -f arch/$machine/$platform/make.inc \$@.exe"
1.184     pazsan    361:        fi
1.183     pazsan    362: fi
1.184     pazsan    363: AC_SUBST(MAKEINC)
1.183     pazsan    364: 
1.203     anton     365: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
                    366: 
                    367: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
                    368: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
                    369:                   [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
1.151     anton     370: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
                    371: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
                    372:                   [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146     pazsan    373: 
1.173     anton     374: test x$GCC_PR15242_WORKAROUND = x ||
                    375: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
                    376:                    [force (1) or forbid (0) use of a workaround for a gcc performance bug])
                    377: 
1.103     anton     378: dnl the following macro produces a warning with autoconf-2.1
                    379: AC_CHECK_SIZEOF(char *)
                    380: case "$ac_cv_sizeof_char_p" in
                    381:   2)
                    382:     wordsize=16
                    383:     ;;
                    384:   4)
                    385:     wordsize=32
                    386:     ;;
                    387:   8)
                    388:     wordsize=64
                    389:     ;;
                    390: esac
                    391: 
1.183     pazsan    392: AC_CHECK_SIZEOF(void *)
                    393: case "$ac_cv_sizeof_void_p" in
                    394:   2)
                    395:     vwordsize=16
                    396:     ;;
                    397:   4)
                    398:     vwordsize=32
                    399:     ;;
                    400:   8)
                    401:     vwordsize=64
                    402:     ;;
                    403: esac
                    404: 
1.103     anton     405: AC_CHECK_SIZEOF(char)
                    406: AC_CHECK_SIZEOF(short)
                    407: AC_CHECK_SIZEOF(int)
                    408: AC_CHECK_SIZEOF(long)
                    409: AC_CHECK_SIZEOF(long long)
                    410: AC_CHECK_SIZEOF(intptr_t)
                    411: AC_CHECK_SIZEOF(int128_t)
1.144     pazsan    412: AC_CHECK_SIZEOF(uint128_t)
1.103     anton     413: 
                    414: AC_MSG_CHECKING([for a C type for cells])
                    415: ac_cv_int_type_cell=none
                    416: case "$ac_cv_sizeof_char_p" in
                    417:   $ac_cv_sizeof_int)
                    418:     ac_cv_int_type_cell=int
                    419:     ;;
                    420:   $ac_cv_sizeof_short)
                    421:     ac_cv_int_type_cell=short
                    422:     ;;
                    423:   $ac_cv_sizeof_char)
                    424:     ac_cv_int_type_cell=char
                    425:     ;;
                    426:   $ac_cv_sizeof_long)
                    427:     ac_cv_int_type_cell=long
                    428:     ;;
                    429:   $ac_cv_sizeof_long_long)
                    430:     ac_cv_int_type_cell="long long"
                    431:     ;;
                    432:   $ac_cv_sizeof_intptr_t)
                    433:     ac_cv_int_type_cell="intptr_t"
                    434:     ;;
                    435: esac
                    436: AC_MSG_RESULT($ac_cv_int_type_cell)
                    437: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
                    438: 
1.153     pazsan    439: AC_MSG_CHECKING([for a C type for wydes])
                    440: ac_cv_wyde_type_cell=none
                    441: case 2 in
                    442:   $ac_cv_sizeof_int)
                    443:     ac_cv_wyde_type_cell=int
                    444:     ;;
                    445:   $ac_cv_sizeof_short)
                    446:     ac_cv_wyde_type_cell=short
                    447:     ;;
                    448:   $ac_cv_sizeof_char)
                    449:     ac_cv_wyde_type_cell=char
                    450:     ;;
                    451:   $ac_cv_sizeof_long)
                    452:     ac_cv_wyde_type_cell=long
                    453:     ;;
                    454:   $ac_cv_sizeof_long_long)
                    455:     ac_cv_wyde_type_cell="long long"
                    456:     ;;
                    457:   $ac_cv_sizeof_intptr_t)
                    458:     ac_cv_wyde_type_cell="intptr_t"
                    459:     ;;
                    460: esac
                    461: AC_MSG_RESULT($ac_cv_wyde_type_cell)
                    462: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
                    463: 
                    464: AC_MSG_CHECKING([for a C type for tetrabytes])
                    465: ac_cv_tetrabyte_type_cell=none
                    466: case 4 in
                    467:   $ac_cv_sizeof_int)
                    468:     ac_cv_tetrabyte_type_cell=int
                    469:     ;;
                    470:   $ac_cv_sizeof_short)
                    471:     ac_cv_tetrabyte_type_cell=short
                    472:     ;;
                    473:   $ac_cv_sizeof_char)
                    474:     ac_cv_tetrabyte_type_cell=char
                    475:     ;;
                    476:   $ac_cv_sizeof_long)
                    477:     ac_cv_tetrabyte_type_cell=long
                    478:     ;;
                    479:   $ac_cv_sizeof_long_long)
                    480:     ac_cv_tetrabyte_type_cell="long long"
                    481:     ;;
                    482:   $ac_cv_sizeof_intptr_t)
                    483:     ac_cv_tetrabyte_type_cell="intptr_t"
                    484:     ;;
                    485: esac
                    486: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
                    487: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
                    488: 
1.277     pazsan    489: AC_MSG_CHECKING([for a C type for octabytes])
                    490: ac_cv_octabyte_type_cell=none
                    491: case 8 in
                    492:   $ac_cv_sizeof_int)
                    493:     ac_cv_octabyte_type_cell=int
                    494:     ;;
                    495:   $ac_cv_sizeof_short)
                    496:     ac_cv_octabyte_type_cell=short
                    497:     ;;
                    498:   $ac_cv_sizeof_char)
                    499:     ac_cv_octabyte_type_cell=char
                    500:     ;;
                    501:   $ac_cv_sizeof_long)
                    502:     ac_cv_octabyte_type_cell=long
                    503:     ;;
                    504:   $ac_cv_sizeof_long_long)
                    505:     ac_cv_octabyte_type_cell="long long"
                    506:     ;;
                    507:   $ac_cv_sizeof_intptr_t)
                    508:     ac_cv_octabyte_type_cell="intptr_t"
                    509:     ;;
                    510: esac
                    511: AC_MSG_RESULT($ac_cv_octabyte_type_cell)
                    512: AC_DEFINE_UNQUOTED(OCTABYTE_TYPE,$ac_cv_octabyte_type_cell,[an integer type that is 8 bytes long])
                    513: 
1.103     anton     514: AC_MSG_CHECKING([for a C type for double-cells])
                    515: ac_cv_int_type_double_cell=none
                    516: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    517:   $ac_cv_sizeof_short)
                    518:     ac_cv_int_type_double_cell=short
                    519:     ;;
                    520:   $ac_cv_sizeof_int)
                    521:     ac_cv_int_type_double_cell=int
                    522:     ;;
                    523:   $ac_cv_sizeof_long)
                    524:     ac_cv_int_type_double_cell=long
                    525:     ;;
                    526:   $ac_cv_sizeof_long_long)
                    527:     ac_cv_int_type_double_cell="long long"
                    528:     ;;
                    529:   $ac_cv_sizeof_intptr_t)
                    530:     ac_cv_int_type_double_cell="intptr_t"
                    531:     ;;
1.205     anton     532:   $ac_cv_sizeof_int128_t)
1.103     anton     533:     ac_cv_int_type_double_cell="int128_t"
                    534:     ;;
                    535: esac
                    536: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144     pazsan    537: 
                    538: AC_MSG_CHECKING([for a C type for unsigned double-cells])
                    539: ac_cv_int_type_double_ucell=none
                    540: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    541:   $ac_cv_sizeof_short)
                    542:     ac_cv_int_type_double_ucell="unsigned short"
                    543:     ;;
                    544:   $ac_cv_sizeof_int)
                    545:     ac_cv_int_type_double_ucell="unsigned int"
                    546:     ;;
                    547:   $ac_cv_sizeof_long)
                    548:     ac_cv_int_type_double_ucell="unsigned long"
                    549:     ;;
                    550:   $ac_cv_sizeof_long_long)
                    551:     ac_cv_int_type_double_ucell="unsigned long long"
                    552:     ;;
                    553:   $ac_cv_sizeof_intptr_t)
                    554:     ac_cv_int_type_double_ucell="unsigned intptr_t"
                    555:     ;;
                    556:   $ac_cv_sizeof_uint128_t)
                    557:     ac_cv_int_type_double_ucell="uint128_t"
                    558:     ;;
                    559: esac
                    560: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
                    561: 
1.204     anton     562: if test "$ac_cv_int_type_double_cell" != none && \
                    563:    test "$ac_cv_int_type_double_ucell" != none
1.144     pazsan    564: then
1.103     anton     565:        AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144     pazsan    566:        AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.206     anton     567:         OPTS=-ll
                    568: else
1.217     pazsan    569:         if test "$ac_cv_sizeof_char_p" = 8; then
1.213     anton     570:            OPTS="-ll -noll"
1.206     anton     571:         else
                    572:            OPTS=-noll
                    573:         fi
1.103     anton     574: fi
1.207     anton     575: 
1.258     anton     576: if grep FORCE_REG $srcdir/arch/$machine/machine.h >/dev/null; then
1.227     pazsan    577:    OPTS2=''
                    578:    for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done
                    579:    OPTS="$OPTS2 $OPTS"
1.223     anton     580: else
                    581:   AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG])
1.207     anton     582: fi
1.206     anton     583: AC_SUBST(OPTS)
1.103     anton     584: 
                    585: AC_TYPE_OFF_T
                    586: AC_CHECK_SIZEOF(off_t)
                    587: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
                    588: ac_small_off_t=$?
                    589: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1       anton     590: 
1.109     anton     591: ENGINE_FLAGS=
                    592: AC_SUBST(ENGINE_FLAGS)
                    593: 
                    594: # Try if GCC understands -fno-gcse
                    595: 
                    596: AC_MSG_CHECKING([if $CC understands -fno-gcse])
                    597: CFLAGS_1="$CFLAGS"
                    598: CFLAGS="$CFLAGS -fno-gcse"
                    599: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
                    600: CFLAGS="$CFLAGS_1"
                    601: AC_MSG_RESULT($ac_nogcse)
                    602: 
                    603: # Try if GCC understands -fno-strict-aliasing
                    604: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
                    605: CFLAGS_1="$CFLAGS"
                    606: CFLAGS="$CFLAGS -fno-strict-aliasing"
                    607: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
                    608: CFLAGS="$CFLAGS_1"
                    609: AC_MSG_RESULT($ac_nostrictaliasing)
                    610: 
1.123     anton     611: # Try if GCC understands -fno-crossjumping
                    612: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88      pazsan    613: CFLAGS_1="$CFLAGS"
1.123     anton     614: CFLAGS="$CFLAGS -fno-crossjumping"
1.125     anton     615: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109     anton     616: CFLAGS="$CFLAGS_1"
1.124     pazsan    617: AC_MSG_RESULT($ac_nocrossjumping)
1.88      pazsan    618: 
1.137     pazsan    619: # Try if GCC understands -fno-reorder-blocks
                    620: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
                    621: CFLAGS_1="$CFLAGS"
                    622: CFLAGS="$CFLAGS -fno-reorder-blocks"
                    623: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
                    624: CFLAGS="$CFLAGS_1"
                    625: AC_MSG_RESULT($ac_noreorder_blocks)
                    626: 
1.189     anton     627: # Try if GCC understands -falign-labels=1
                    628: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
                    629: CFLAGS_1="$CFLAGS"
                    630: CFLAGS="$CFLAGS -falign-labels=1"
1.194     anton     631: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
1.189     anton     632: CFLAGS="$CFLAGS_1"
                    633: AC_MSG_RESULT($ac_align_labels)
                    634: 
1.193     anton     635: # Try if GCC understands -falign-loops=1
                    636: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
                    637: CFLAGS_1="$CFLAGS"
                    638: CFLAGS="$CFLAGS -falign-loops=1"
1.194     anton     639: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
1.193     anton     640: CFLAGS="$CFLAGS_1"
                    641: AC_MSG_RESULT($ac_align_loops)
                    642: 
                    643: # Try if GCC understands -falign-jumps=1
                    644: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
                    645: CFLAGS_1="$CFLAGS"
                    646: CFLAGS="$CFLAGS -falign-jumps=1"
1.194     anton     647: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
1.193     anton     648: CFLAGS="$CFLAGS_1"
                    649: AC_MSG_RESULT($ac_align_jumps)
                    650: 
1.271     anton     651: if test -z "$LIBTOOL_CC"
                    652: then
                    653:   LIBTOOL_CC="$CC"
                    654:   # Try if GCC understands -Wimplicit-function-declaration
                    655:   AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration])
                    656:   CFLAGS_1="$CFLAGS"
                    657:   CFLAGS="$CFLAGS -Wimplicit-function-declaration"
                    658:   AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",)
                    659:   CFLAGS="$CFLAGS_1"
                    660:   AC_MSG_RESULT($ac_align_jumps)
                    661: fi
                    662: AC_SUBST(LIBTOOL_CC)
                    663: 
                    664: 
                    665: 
1.130     anton     666: # Try if GCC understands __attribute__((unused))
                    667: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
                    668: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
                    669: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
                    670: AC_MSG_RESULT($MAYBE_UNUSED)
                    671: 
1.195     anton     672: #try if m4 understands -s
                    673: AC_MSG_CHECKING([how to invoke m4])
1.196     anton     674: if m4 -s /dev/null >/dev/null 2>&1; then
1.195     anton     675:  M4="m4 -s"
                    676: else
                    677:  M4=m4
                    678: fi
                    679: AC_SUBST(M4)
                    680: AC_MSG_RESULT($M4)
                    681: 
1.202     pazsan    682: # Find installed Gforth
                    683: AC_MSG_CHECKING([for gforth])
1.215     anton     684: GFORTH="`cd / && which gforth 2>/dev/null`"
1.257     anton     685: #the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
                    686: (cd / && $GFORTH -e bye >/dev/null 2>/dev/null  && test "$srcdir" = ".") || GFORTH=""
1.215     anton     687: if test -z "$GFORTH"; then
1.223     anton     688:   PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
1.233     anton     689:   kernel_anti_dependence=''
1.215     anton     690: else
1.239     anton     691:   PREFORTH="$GFORTH -i `cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`" ;
1.233     anton     692:   kernel_anti_dependence='$(kernel_fi)'
1.215     anton     693: fi
                    694: AC_SUBST(PREFORTH)
1.233     anton     695: AC_SUBST(kernel_anti_dependence)
1.215     anton     696: AC_MSG_RESULT($PREFORTH)
1.202     pazsan    697: 
1.215     anton     698: #echo "machine='$machine'"
1.191     anton     699: 
                    700: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.275     pazsan    701: if test x$EC_MODE = xfalse
                    702: then
1.278     dvdkhlng  703:   AS_IF([test -f $srcdir/arch/$machine/asm.fs],
                    704:         [asm_fs=arch/$machine/asm.fs])
1.275     pazsan    705: fi
1.61      anton     706: AC_SUBST(asm_fs)
                    707: 
1.191     anton     708: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.275     pazsan    709: if test x$EC_MODE = xfalse
                    710: then
1.278     dvdkhlng  711:   AS_IF([test -f $srcdir/arch/$machine/disasm.fs],
                    712:        [disasm_fs=arch/$machine/disasm.fs])
1.275     pazsan    713: fi
1.61      anton     714: AC_SUBST(disasm_fs)
                    715: 
1.116     anton     716: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114     anton     717: 
1.39      pazsan    718: case "$host_os" in
1.157     pazsan    719:        *win32*)
                    720:                # !!!FIXME!!! problems with cygwin and ';' as path separator
1.108     anton     721:                DIRSEP="\\\\"
1.127     anton     722:                PATHSEP=";"
1.142     anton     723:                #we want the builtins of command.com/cmd.exe and its
                    724:                # handling of .com files.
                    725:                #$COMSPEC contains the name of the Windows shell;
                    726:                # the ./ is there, because the bash does not recognize
                    727:                # absolute DOS filenames
                    728:                DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39      pazsan    729:                ;;
1.97      anton     730:        *darwin*)
                    731:                #Darwin uses some funny preprocessor by default; eliminate it:
1.127     anton     732:                AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120     anton     733:                CFLAGS="$CFLAGS -no-cpp-precomp"
1.98      anton     734:                DIRSEP="/"
1.127     anton     735:                PATHSEP=":"
1.141     anton     736:                DEFAULTSYSTEMPREFIX=""
1.243     anton     737:                 #the following magic value was suggested by
                    738:                 #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
                    739:                 AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
1.98      anton     740:                ;;
1.246     pazsan    741:        *linux*)
                    742:                DIRSEP="/"
                    743:                PATHSEP=":"
                    744:                DEFAULTSYSTEMPREFIX=""
1.250     anton     745:                if test -z "$LTDL_LIBRARY_PATH" -a "$wordsize" = 64; then
1.253     pazsan    746:                   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    747:                fi
                    748:                ;;
1.39      pazsan    749:        *)
1.88      pazsan    750:                DIRSEP="/"
1.127     anton     751:                PATHSEP=":"
1.141     anton     752:                DEFAULTSYSTEMPREFIX=""
1.39      pazsan    753:                ;;
                    754: esac
1.88      pazsan    755: AC_SUBST(DIRSEP)
1.89      pazsan    756: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127     anton     757: AC_SUBST(PATHSEP)
                    758: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141     anton     759: AC_SUBST(DEFAULTSYSTEMPREFIX)
                    760: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.250     anton     761: if test -n "$LTDL_LIBRARY_PATH"; then
                    762:    AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux])
                    763: fi                                                                
1.39      pazsan    764: 
1.170     anton     765: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
1.172     anton     766: #This magic incantation  seems to be completely undocumented.
                    767: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
1.170     anton     768: 
1.1       anton     769: dnl Now a little support for DOS/DJGCC
1.276     pazsan    770: GFORTHFAST_EXE="$GFORTH_EXE"
                    771: GFORTHITC_EXE="$GFORTH_EXE"
                    772: GFORTHDITC_EXE="$GFORTH_EXE"
1.30      pazsan    773: AC_SUBST(GFORTH_EXE)
1.48      anton     774: AC_SUBST(GFORTHFAST_EXE)
1.83      anton     775: AC_SUBST(GFORTHITC_EXE)
1.30      pazsan    776: AC_SUBST(GFORTHDITC_EXE)
1.27      anton     777: 
                    778: AC_SUBST(FORTHSIZES)
1.24      anton     779: 
1.104     anton     780: dnl if test "$PEEPHOLE" = "yes"
                    781: dnl then
                    782: dnl    PEEPHOLEFLAG="true"
                    783: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
                    784: dnl else
                    785: dnl    PEEPHOLEFLAG="false"
                    786: dnl fi
                    787: PEEPHOLEFLAG="true"
1.79      pazsan    788: AC_SUBST(PEEPHOLEFLAG)
                    789: 
1.1       anton     790: dnl copy commands for systems that don't have links
1.29      pazsan    791: AC_SUBST(LINK_KERNL)
                    792: LINK_KERNL=""
1.1       anton     793: 
                    794: #if test $host_os=dos
                    795: #then
                    796: #  echo Configuring for DOS!!!
                    797: #  MAKE_EXE="coff2exe gforth"
1.29      pazsan    798: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1       anton     799: #fi
                    800: 
                    801: dnl the following macro produces a warning with autoconf-2.1
                    802: AC_C_BIGENDIAN
1.23      pazsan    803: AC_SUBST(KERNEL)
1.1       anton     804: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
1.256     pazsan    805: if test $ac_cv_c_bigendian != no; then
1.1       anton     806:   bytesex=b
1.23      pazsan    807:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1       anton     808: else
                    809:   bytesex=l
1.23      pazsan    810:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1       anton     811: fi
                    812: 
1.91      anton     813: #check how to do asm(".skip 16")
1.169     anton     814: #echo "CFLAGS=$CFLAGS"
                    815: #echo "ac_link=$ac_link"
1.92      anton     816: AC_MSG_CHECKING([if and how we can waste code space])
1.279     dvdkhlng  817: if test -z "$skipcode" && test x$cross_compiling = xyes; then
                    818:    # we cannot perform the AC_TRY_RUN check when cross-compiling.  
                    819:    skipcode=no
                    820:    AC_MSG_RESULT([$skipcode, can't run checks since cross-compiling])
                    821: elif test -z "$skipcode"; then
1.148     anton     822:     skipcode=no
                    823:     CFLAGS_1="$CFLAGS"
                    824:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136     anton     825:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
                    826:     do
1.91      anton     827:        AC_TRY_RUN(
1.136     anton     828: [int foo(int,int,int);
1.91      anton     829: main()
                    830: {
1.136     anton     831:   exit(foo(0,0,0)!=16);
1.91      anton     832: }
1.136     anton     833: int foo(int x, int y, int z)
1.91      anton     834: {
1.136     anton     835:   static void *labels[]={&&label1, &&label2};
1.91      anton     836:   if (x) {
1.136     anton     837:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91      anton     838:   label1:
1.148     anton     839:     asm("$i"); /* or ".space 16" or somesuch */
1.136     anton     840:   label2: ;
                    841:   }
                    842:   {
                    843:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
                    844:   return labels[1]-labels[0];
1.91      anton     845:   }
1.136     anton     846: }]
1.92      anton     847:        ,skipcode=$i; break
                    848:        ,,)
1.136     anton     849:     done
1.148     anton     850:     CFLAGS=$CFLAGS_1
1.136     anton     851: fi
1.92      anton     852: AC_MSG_RESULT($skipcode)
                    853: if test "$skipcode" = no
                    854: then 
1.136     anton     855:     if test -z $no_dynamic_default; then
                    856:        no_dynamic_default=1
                    857:        AC_MSG_WARN(Disabling default dynamic native code generation)
                    858:     fi
1.280     dvdkhlng  859:     AC_DEFINE_UNQUOTED(SKIP16,asm(""),statement for skipping 16 bytes)
1.92      anton     860: else
                    861:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
                    862: fi
1.91      anton     863: 
1.174     anton     864: AC_MSG_CHECKING([if and how we can do comments in asm statements])
                    865: #the point here is to get asm statements that look different to
                    866: #gcc's "optimizer"
                    867: if test -z "$asmcomment"; then
                    868:     asmcomment=no
                    869:     CFLAGS_1="$CFLAGS"
                    870:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.176     anton     871:     for i in '"# "' '"! "' '"; "'; do
1.174     anton     872:        AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
                    873:     done
                    874:     CFLAGS=$CFLAGS_1
                    875: fi
                    876: AC_MSG_RESULT($asmcomment)
                    877: if test "$asmcomment" != no
                    878: then 
                    879:     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
                    880: fi
                    881: 
1.136     anton     882: test "$no_dynamic_default" || no_dynamic_default=0
1.92      anton     883: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91      anton     884: 
1.1       anton     885: dnl Checks for programs.
                    886: AC_PROG_LN_S
1.95      anton     887: AC_PROG_INSTALL
1.163     pazsan    888: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
1.1       anton     889: 
1.288   ! anton     890: dnl check for the presence of Emacs
        !           891: AC_CHECK_PROGS(EMACS,emacs xemacs)
        !           892: test -n "$EMACS" && gforth_elc=gforth.elc
        !           893: AC_SUBST(gforth_elc)
        !           894: 
1.198     anton     895: dnl MacOS X has a libtool that does something else
1.264     pazsan    896: AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
1.198     anton     897: 
1.269     anton     898: dnl Checks for library functions
                    899: dnl This check is just for making later checks link with libm.
                    900: dnl using sin here is no good idea since it is built-into gcc and typechecked
                    901: AC_CHECK_LIB(m,asin)
                    902: AC_CHECK_LIB(ltdl,lt_dlinit)
                    903: 
                    904: if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
1.258     anton     905:   build_libcc_named=build-libcc-named
                    906: else
                    907:   build_libcc_named=""
1.274     anton     908:   AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries])
1.258     anton     909: fi
                    910: AC_SUBST(build_libcc_named)
                    911: 
1.274     anton     912: 
                    913: if test -z "$GNU_LIBTOOL"; then
                    914:   AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.])
                    915:   AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.])
                    916:   GNU_LIBTOOL=libtool
                    917: fi
                    918: 
1.235     anton     919: #check for libffi 2.x
1.237     anton     920: AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
                    921: if test -z "$FFI_H_NAME"; then
                    922:   AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
                    923: fi
                    924: AC_SUBST(FFI_H_NAME)
1.286     pazsan    925: AC_CHECK_LIB(ffi,ffi_call,LIBS="$LIBS")
1.241     anton     926: if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
1.235     anton     927: then
                    928:   LIBFFIFLAG="true"
1.236     anton     929:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs"
1.235     anton     930: else
                    931:   LIBFFIFLAG="false"
                    932: fi
                    933: #check for ffcall libraries
                    934: #unfortunately, these four calls are separated out into a library each.
1.286     pazsan    935: AC_CHECK_LIB(avcall,__builtin_avcall,LIBS="$LIBS")
1.234     pazsan    936: dnl AC_CHECK_LIB(callback,__vacall_r)
                    937: dnl AC_CHECK_LIB(vacall,vacall)
                    938: dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
1.235     anton     939: if test $ac_cv_lib_avcall___builtin_avcall = yes; then
                    940:   FFCALLFLAG="true"
1.236     anton     941:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs"
1.235     anton     942: else
                    943:   FFCALLFLAG="false"
                    944: fi
                    945: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then
                    946:   AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries])
                    947: fi
                    948: AC_SUBST(LIBFFIFLAG)
                    949: AC_SUBST(FFCALLFLAG)
1.236     anton     950: AC_SUBST(LIBCC_BUILD_SRC)
1.32      pazsan    951: if test "$host_os" != "nextstep3"
                    952: then
                    953:        AC_FUNC_MEMCMP
                    954: fi
1.25      pazsan    955: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97      anton     956: AC_FUNC_FSEEKO
1.186     anton     957: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
1.111     anton     958: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19      anton     959: AC_DECL_SYS_SIGLIST
1.138     anton     960: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90      anton     961: AC_CHECK_FUNCS(expm1 log1p)
                    962: AC_REPLACE_FUNCS(rint ecvt)
1.1       anton     963: dnl No check for select, because our replacement is no good under
                    964: dnl anything but DOS
1.277     pazsan    965: AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h endian.h)
1.63      anton     966: AC_FUNC_FNMATCH
1.87      pazsan    967: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.255     anton     968: AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth)
1.34      anton     969: AM_PATH_LISPDIR
1.1       anton     970: 
1.183     pazsan    971: kernel_fi=kernl${vwordsize}${bytesex}.fi
1.178     pazsan    972: include_fi=kernl${wordsize}${bytesex}${EC}.fi
1.23      pazsan    973: AC_SUBST(kernel_fi)
1.178     pazsan    974: AC_SUBST(include_fi)
1.50      jwilke    975: 
1.76      anton     976: #this breaks bindists
                    977: #dnl replace srource directory by absolute value
                    978: #if test $srcdir = "."; then srcdir=`pwd` 
                    979: #fi
1.8       anton     980: 
1.34      anton     981: AC_SUBST(machine)
1.95      anton     982: AC_CONFIG_FILES([
1.31      anton     983: Makefile
1.45      pazsan    984: Makedist
1.43      anton     985: gforthmi
1.80      anton     986: vmgen
1.79      pazsan    987: machpc.fs
1.159     pazsan    988: envos.fs
1.223     anton     989: preforth
1.35      anton     990: engine/Makefile
1.188     anton     991: engine/libcc.h
1.161     pazsan    992: doc/version.texi
                    993: build-ec ])
1.95      anton     994: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43      anton     995: chmod +x gforthmi
1.80      anton     996: chmod +x vmgen
1.162     pazsan    997: chmod +x build-ec
1.223     anton     998: chmod +x preforth
1.188     anton     999: test -d kernel||mkdir kernel
1.258     anton    1000: if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi
1.188     anton    1001: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
1.262     anton    1002: $srcdir/mkinstalldirs arch/$machine
                   1003: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],
                   1004: [PACKAGE_VERSION=$PACKAGE_VERSION
                   1005:  machine=$machine])
1.95      anton    1006: AC_OUTPUT

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