Annotation of gforth/configure.in, revision 1.184

1.1       anton       1: dnl Process this file with autoconf to produce a configure script.
1.20      anton       2: 
1.160     pazsan      3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006 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
                      9: #as published by the Free Software Foundation; either version 2
                     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
                     18: #along with this program; if not, write to the Free Software
1.74      anton      19: #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.20      anton      20: 
1.121     anton      21: 
1.34      anton      22: dnl We use some automake macros here,
                     23: dnl but don't use automake for creating Makefile.in
1.181     pazsan     24: AC_INIT([gforth],[0.6.9-20070401],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
1.113     anton      25: AC_PREREQ(2.54)
1.47      anton      26: #snapshots have numbers major.minor.release-YYYYMMDD
1.92      anton      27: #note that lexicographic ordering must be heeded.
1.47      anton      28: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
1.160     pazsan     29: UPDATED="April 09, 2006"
1.84      anton      30: AC_SUBST(UPDATED)
1.94      anton      31: AC_CONFIG_HEADERS(engine/config.h)
1.14      anton      32: 
1.121     anton      33: #suppress the "-g -O2" default
                     34: test "$CFLAGS" || CFLAGS=-O2
                     35: 
1.1       anton      36: AC_ARG_ENABLE(force-reg,
1.149     anton      37:        AC_HELP_STRING([--enable-force-reg],
                     38:                        [ Use explicit register declarations if they appear in
1.1       anton      39:                          the machine.h file. This can cause a good speedup,
                     40:                          but also incorrect code with some gcc versions on
1.149     anton      41:                          some processors (default disabled).]),
                     42:        ,enable_force_reg=no)
                     43: test "$enable_force_reg" = "no"||
                     44:   AC_DEFINE(FORCE_REG,,[Define if you want to use explicit register declarations for better performance or for more convenient CODE words (does not work with all GCC versions on all machines)])
                     45: 
1.145     pazsan     46: AC_ARG_ENABLE(force-ll,
1.149     anton      47:        AC_HELP_STRING([--enable-force-ll],
                     48:                       [  Use explicit long long declarations if they appear in
1.145     pazsan     49:                          the machine.h file. This can cause a good speedup,
                     50:                          but also incorrect code with some gcc versions on
1.149     anton      51:                          some processors (default disabled).]),
                     52:        ,enable_force_ll=no)
                     53: test "$enable_force_ll" = "no"||
                     54:   AC_DEFINE(FORCE_LL,,[Define if you want to use explicit long long declarations for better performance (does not work with all GCC versions on all machines)])
1.147     anton      55: 
1.150     pazsan     56: AC_ARG_ENABLE(force-cdiv,
                     57:        AC_HELP_STRING([--enable-force-cdiv],
                     58:                       [  Use the native C division - symmetric - instead of
                     59:                          floored division (default disabled).]),
                     60:        ,enable_force_cdiv=no)
                     61: test "$enable_force_cdiv" = "no"||
                     62:   AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance])
                     63: 
1.149     anton      64: AC_SUBST(PROFEXES)
                     65: AC_SUBST(PROFOBJS)
1.135     anton      66: AC_ARG_ENABLE(prof,
1.149     anton      67:        AC_HELP_STRING([--enable-prof],
                     68:                        [ Build gforth-prof, which outputs frequently occuring
                     69:                           sequences of primitives.]),
                     70:        ,enable_prof=no)
                     71: if test "$enable_prof" = "no"; then
                     72:   PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o"
                     73: fi
1.1       anton      74: 
1.9       pazsan     75: AC_ARG_WITH(debug,
1.122     pazsan     76: [  --with-debug                  specifies option -g to compile with debug info
                     77:   --without-debug        omits the -g switch and creates smaller images on
                     78:                          machines where "strip" has problems with gcc style
                     79:                          debugging informations.],
1.9       pazsan     80: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
1.122     pazsan     81: 
1.104     anton      82: dnl PEEPHOLE="yes"
                     83: dnl AC_ARG_WITH(peephole,
                     84: dnl [  --with-peephole Enable peephole optimization (default)
                     85: dnl   --without-peephole       disables peephole optimization. Creates smaller,
                     86: dnl                    but slower images.],
                     87: dnl PEEPHOLE="$withval")
                     88: 
1.182     pazsan     89: AC_ARG_WITH(ec,
                     90:        AC_HELP_STRING([--with-ec=<arch>],
1.168     pazsan     91:                        [  Build gforth for systems without OS.]),
1.182     pazsan     92: [if test "$withval" = "no"; then
                     93:   echo "defining hosted system"
                     94:   EC_MODE="false"
                     95:   EC=""
                     96:   engine2="engine2.o"
                     97:   engine_fast2="engine-fast2.o"
                     98:   no_dynamic=""
                     99:   image_i=""
                    100:   signals_o="io.o signals.o"
1.183     pazsan    101:   GCC_LD="\$(GCC)"
1.182     pazsan    102: else
                    103:   echo "defining standalone system (${withval})"
1.168     pazsan    104:   AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
1.167     pazsan    105:   EC_MODE="true"
1.178     pazsan    106:   EC="-ec"
                    107:   engine2=""
                    108:   engine_fast2=""
                    109:   no_dynamic="-DNO_DYNAMIC"
                    110:   image_i="image.i"
1.182     pazsan    111:   if test "$withval" != "yes"; then
                    112:     signals_o="io-${withval}.o"
                    113:   else
                    114:     signals_o="io.o"
                    115:   fi
1.183     pazsan    116:   GCC_PATH=$(which $CC)
                    117:   LIB_PATH=${GCC_PATH%/*/*}
                    118:   GCC_LD="\$(LD)"
1.184   ! pazsan    119:   platform=${withval}
1.182     pazsan    120: fi])
1.167     pazsan    121: 
1.104     anton     122: #variables mentioned in INSTALL
1.123     anton     123: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
1.104     anton     124: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
1.151     anton     125: 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     126: 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)])
                    127: 
1.104     anton     128: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
1.183     pazsan    129: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
1.104     anton     130: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
                    131: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
                    132: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
                    133: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
                    134: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
                    135: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
                    136: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
1.144     pazsan    137: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
1.123     anton     138: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
                    139: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
1.166     anton     140: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
1.174     anton     141: AC_ARG_VAR(asmcomment, [assembler comment start string])
1.175     anton     142: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
1.82      anton     143: 
1.96      anton     144: #set up feature test macros, so the tests get them right:
                    145: # turn on all POSIX, SUSv3, and GNU features if available
1.97      anton     146: AC_GNU_SOURCE
                    147: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
                    148: 
                    149: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
                    150: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
                    151: dnl but not for _XOPEN_SOURCE)
                    152: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
                    153: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
                    154: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96      anton     155: # turn on large file support with 64-bit off_t where available
1.105     anton     156: AC_SYS_LARGEFILE
                    157: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
                    158: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96      anton     159: 
1.82      anton     160: #currently we force direct threading this way.  Eventually we should
                    161: #setup in the arch and engine files right
1.16      anton     162: 
1.15      pazsan    163: AC_PROG_CC
                    164: 
1.92      anton     165: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9       pazsan    166: 
1.15      pazsan    167: AC_SUBST(CC)
1.183     pazsan    168: AC_SUBST(GCC_LD)
1.9       pazsan    169: AC_SUBST(DEBUGFLAG)
1.178     pazsan    170: AC_SUBST(EC)
1.167     pazsan    171: AC_SUBST(EC_MODE)
1.178     pazsan    172: AC_SUBST(engine2)
                    173: AC_SUBST(engine_fast2)
                    174: AC_SUBST(no_dynamic)
                    175: AC_SUBST(image_i)
1.179     pazsan    176: AC_SUBST(signals_o)
1.7       anton     177: 
1.174     anton     178: #this is used to disable some (not generally essential) part of the
                    179: #Makefile that some makes don't grok.  It would be better to test for
                    180: #this specific Makefile feature than the make version.
1.128     pazsan    181: AC_MSG_CHECKING(make type)
1.174     anton     182: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
1.128     pazsan    183: GNUMAKE='#'
                    184: test "$make_type" = "GNU Make" && GNUMAKE=''
                    185: AC_MSG_RESULT($make_type)
                    186: AC_SUBST(GNUMAKE)
                    187: 
1.50      jwilke    188: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
                    189: OLDLDFLAGS=$LDFLAGS
                    190: LDFLAGS="$LDFLAGS -export-dynamic"
1.69      anton     191: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
                    192: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
                    193: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50      jwilke    194: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
                    195: AC_MSG_RESULT($ac_export_dynamic)
                    196: 
1.1       anton     197: #terminology is a bit unusual here: The host is the system on which
                    198: #gforth will run; the system on which configure will run is the `build'
                    199: AC_CANONICAL_HOST
                    200: case "$host_cpu" in
1.136     anton     201:        arm*)
                    202:                machine=arm
                    203:                CFLAGS="$CFLAGS -fomit-frame-pointer"
1.184   ! pazsan    204:                if test x$platform = xnxt; then
1.183     pazsan    205:                   CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
                    206:                fi
1.175     anton     207:                if test -z $arm_cacheflush; then
1.136     anton     208:                    no_dynamic_default=1
1.175     anton     209:                     arm_cacheflush=arch/arm/cacheflush0
1.136     anton     210:                    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    211:                fi
1.175     anton     212:                 AC_LIBSOURCES([../arch/arm/cacheflush0, ../arch/arm/cacheflush1, ../arch/arm/cacheflush2])
                    213:                 AC_LIBOBJ(../$arm_cacheflush)
1.177     anton     214:                 #longer skipcodes lead to problems on ARM, and it uses
                    215:                 #only 4-byte alignment anyway
                    216:                test "$skipcode" || skipcode="nop"
1.136     anton     217:                ;;
1.1       anton     218:        hppa*)
1.34      anton     219:                machine=hppa
1.46      anton     220:                $srcdir/mkinstalldirs arch/hppa
1.87      pazsan    221:                AC_LIBOBJ(../arch/hppa/cache)
1.134     anton     222:                #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
                    223:                LDFLAGS="$LDFLAGS -Xlinker -N"
1.47      anton     224:                LIBS="$LIBS -L/lib/pa1.1/"
1.1       anton     225:                ;;
                    226:        sparc*)
1.34      anton     227:                machine=sparc
1.1       anton     228:                ;;
1.31      anton     229:        i386)
1.34      anton     230:                machine=386
1.16      anton     231:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31      anton     232:                ;;
                    233:        i486)
1.34      anton     234:                machine=386
1.31      anton     235:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
                    236:                ;;
1.77      anton     237:        i*86)
1.34      anton     238:                machine=386
1.55      anton     239:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56      pazsan    240:                CFLAGS_1="$CFLAGS"
1.87      pazsan    241:                CFLAGS="$CFLAGS -march=pentium"
1.56      pazsan    242:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1       anton     243:                ;;
1.133     anton     244:        x86_64)
                    245:                machine=amd64
                    246:                ;;
1.136     anton     247:        ia64*)
                    248:                machine=ia64
                    249:                AC_LIBOBJ(../arch/ia64/flush_icache_block)
                    250:                test "$skipcode" || skipcode="nop.i 0"
                    251:                #".skip 16" passes the test below,
                    252:                # but gives an assembler error in engine
                    253:                ;;
1.26      pazsan    254:         m68k)
1.34      anton     255:                machine=m68k
1.32      pazsan    256:                CFLAGS="$CFLAGS -fomit-frame-pointer"
                    257:                if test "$host_os" = "nextstep3"
                    258:                then
1.87      pazsan    259:                        AC_LIBOBJ(termios)
1.32      pazsan    260:                fi
1.26      pazsan    261:                ;;
1.1       anton     262:        mips*)
1.34      anton     263:                machine=mips
1.92      anton     264:                #dynamic native code has the following problems on MIPS:
                    265:                #
                    266:                #1) J/JAL seems relocatable, but is are only
                    267:                #relocatable within a 256MB-segment.  While we try to
                    268:                #get the linker to arrange this, there is no guarantee
                    269:                #that this will succeed (and if the user uses a lot of
                    270:                #memory, it is likely to fail).
                    271:                #
                    272:                #2) The way we generate dynamic native code may
                    273:                #violate MIPS architectural restrictions (in
                    274:                #particular, the delay slots of LW, MFLO, etc.)
                    275:                #
                    276:                #Therefore we disable dynamic native code by default:
1.136     anton     277:                if test -z $no_dynamic_default; then
                    278:                    no_dynamic_default=1
                    279:                    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
                    280:                fi
1.1       anton     281:                ;;
1.9       pazsan    282:        alpha*)
1.34      anton     283:                machine=alpha
1.58      anton     284:                #full IEEE FP support for more uniformity across platforms:
                    285:                CFLAGS="$CFLAGS -mieee"
1.9       pazsan    286:                ;;
1.69      anton     287:        power*|rs6000)
1.34      anton     288:                machine=power
1.46      anton     289:                $srcdir/mkinstalldirs arch/power
1.138     anton     290:                AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103     anton     291:                #long long is broken on (at least) gcc-2.95.* for PPC
1.165     anton     292:                test x$ac_cv_sizeof_long_long = x && 
                    293:                ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
                    294:                ac_cv_sizeof_long_long=0
1.31      anton     295:                ;;
1.1       anton     296:        *)
1.92      anton     297:                AC_MSG_WARN([Using a generic machine description])
                    298:                AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
                    299:                AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34      anton     300:                machine=generic
1.97      anton     301:                #I-cache flushing would be needed for dynamic code generation
1.136     anton     302:                if test -z $no_dynamic_default; then
                    303:                    no_dynamic_default=1
                    304:                    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    305:                fi
1.1       anton     306: esac
1.10      anton     307: AC_SUBST(host)
1.151     anton     308: 
1.184   ! pazsan    309: MAKEINC=""
        !           310: 
        !           311: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
1.183     pazsan    312: if test x$EC_MODE = xtrue
                    313: then
1.184   ! pazsan    314:        echo "Check for arch/$machine/$platform/gforth.ld"
        !           315:        if test -f arch/$machine/$platform/gforth.ld
1.183     pazsan    316:        then
1.184   ! pazsan    317:                LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
        !           318:                if test x$platform = xnxt; then
1.183     pazsan    319:                        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 $LIBS"
                    320:                fi
                    321:        fi
1.184   ! pazsan    322:        if test -f arch/$machine/$platform/make.inc
        !           323:        then
        !           324:                MAKEINC="include ../arch/$machine/$platform/make.inc"
        !           325:        fi
1.183     pazsan    326: fi
1.184   ! pazsan    327: AC_SUBST(MAKEINC)
1.183     pazsan    328: 
1.151     anton     329: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
                    330: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
                    331:                   [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146     pazsan    332: 
1.173     anton     333: test x$GCC_PR15242_WORKAROUND = x ||
                    334: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
                    335:                    [force (1) or forbid (0) use of a workaround for a gcc performance bug])
                    336: 
                    337: dnl AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
                    338: dnl generation on gccs affected by PR15242])
                    339: 
                    340: 
1.146     pazsan    341: if test "${enable_force_ll+set}" = set; then
                    342:    ac_includes_default="$ac_includes_default
                    343: #include \"arch/generic/128bit.h\""
                    344: fi
1.103     anton     345: 
                    346: dnl the following macro produces a warning with autoconf-2.1
                    347: AC_CHECK_SIZEOF(char *)
                    348: case "$ac_cv_sizeof_char_p" in
                    349:   2)
                    350:     wordsize=16
                    351:     ;;
                    352:   4)
                    353:     wordsize=32
                    354:     ;;
                    355:   8)
                    356:     wordsize=64
                    357:     ;;
                    358: esac
                    359: 
1.183     pazsan    360: AC_CHECK_SIZEOF(void *)
                    361: case "$ac_cv_sizeof_void_p" in
                    362:   2)
                    363:     vwordsize=16
                    364:     ;;
                    365:   4)
                    366:     vwordsize=32
                    367:     ;;
                    368:   8)
                    369:     vwordsize=64
                    370:     ;;
                    371: esac
                    372: 
1.103     anton     373: AC_CHECK_SIZEOF(char)
                    374: AC_CHECK_SIZEOF(short)
                    375: AC_CHECK_SIZEOF(int)
                    376: AC_CHECK_SIZEOF(long)
                    377: AC_CHECK_SIZEOF(long long)
                    378: AC_CHECK_SIZEOF(intptr_t)
                    379: AC_CHECK_SIZEOF(int128_t)
1.144     pazsan    380: AC_CHECK_SIZEOF(uint128_t)
1.103     anton     381: 
                    382: AC_MSG_CHECKING([for a C type for cells])
                    383: ac_cv_int_type_cell=none
                    384: case "$ac_cv_sizeof_char_p" in
                    385:   $ac_cv_sizeof_int)
                    386:     ac_cv_int_type_cell=int
                    387:     ;;
                    388:   $ac_cv_sizeof_short)
                    389:     ac_cv_int_type_cell=short
                    390:     ;;
                    391:   $ac_cv_sizeof_char)
                    392:     ac_cv_int_type_cell=char
                    393:     ;;
                    394:   $ac_cv_sizeof_long)
                    395:     ac_cv_int_type_cell=long
                    396:     ;;
                    397:   $ac_cv_sizeof_long_long)
                    398:     ac_cv_int_type_cell="long long"
                    399:     ;;
                    400:   $ac_cv_sizeof_intptr_t)
                    401:     ac_cv_int_type_cell="intptr_t"
                    402:     ;;
                    403:   $ac_cv_sizeof_int128_t)
                    404:     ac_cv_int_type_cell="int128_t"
                    405:     ;;
                    406: esac
                    407: AC_MSG_RESULT($ac_cv_int_type_cell)
                    408: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
                    409: 
1.153     pazsan    410: AC_MSG_CHECKING([for a C type for wydes])
                    411: ac_cv_wyde_type_cell=none
                    412: case 2 in
                    413:   $ac_cv_sizeof_int)
                    414:     ac_cv_wyde_type_cell=int
                    415:     ;;
                    416:   $ac_cv_sizeof_short)
                    417:     ac_cv_wyde_type_cell=short
                    418:     ;;
                    419:   $ac_cv_sizeof_char)
                    420:     ac_cv_wyde_type_cell=char
                    421:     ;;
                    422:   $ac_cv_sizeof_long)
                    423:     ac_cv_wyde_type_cell=long
                    424:     ;;
                    425:   $ac_cv_sizeof_long_long)
                    426:     ac_cv_wyde_type_cell="long long"
                    427:     ;;
                    428:   $ac_cv_sizeof_intptr_t)
                    429:     ac_cv_wyde_type_cell="intptr_t"
                    430:     ;;
                    431:   $ac_cv_sizeof_int128_t)
                    432:     ac_cv_wyde_type_cell="int128_t"
                    433:     ;;
                    434: esac
                    435: AC_MSG_RESULT($ac_cv_wyde_type_cell)
                    436: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
                    437: 
                    438: AC_MSG_CHECKING([for a C type for tetrabytes])
                    439: ac_cv_tetrabyte_type_cell=none
                    440: case 4 in
                    441:   $ac_cv_sizeof_int)
                    442:     ac_cv_tetrabyte_type_cell=int
                    443:     ;;
                    444:   $ac_cv_sizeof_short)
                    445:     ac_cv_tetrabyte_type_cell=short
                    446:     ;;
                    447:   $ac_cv_sizeof_char)
                    448:     ac_cv_tetrabyte_type_cell=char
                    449:     ;;
                    450:   $ac_cv_sizeof_long)
                    451:     ac_cv_tetrabyte_type_cell=long
                    452:     ;;
                    453:   $ac_cv_sizeof_long_long)
                    454:     ac_cv_tetrabyte_type_cell="long long"
                    455:     ;;
                    456:   $ac_cv_sizeof_intptr_t)
                    457:     ac_cv_tetrabyte_type_cell="intptr_t"
                    458:     ;;
                    459:   $ac_cv_sizeof_int128_t)
                    460:     ac_cv_tetrabyte_type_cell="int128_t"
                    461:     ;;
                    462: esac
                    463: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
                    464: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
                    465: 
1.103     anton     466: AC_MSG_CHECKING([for a C type for double-cells])
                    467: ac_cv_int_type_double_cell=none
                    468: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    469:   $ac_cv_sizeof_short)
                    470:     ac_cv_int_type_double_cell=short
                    471:     ;;
                    472:   $ac_cv_sizeof_int)
                    473:     ac_cv_int_type_double_cell=int
                    474:     ;;
                    475:   $ac_cv_sizeof_long)
                    476:     ac_cv_int_type_double_cell=long
                    477:     ;;
                    478:   $ac_cv_sizeof_long_long)
                    479:     ac_cv_int_type_double_cell="long long"
                    480:     ;;
                    481:   $ac_cv_sizeof_intptr_t)
                    482:     ac_cv_int_type_double_cell="intptr_t"
                    483:     ;;
                    484:   $ac_cv_sizeof_int128_t)
                    485:     ac_cv_int_type_double_cell="int128_t"
                    486:     ;;
                    487: esac
                    488: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144     pazsan    489: 
                    490: AC_MSG_CHECKING([for a C type for unsigned double-cells])
                    491: ac_cv_int_type_double_ucell=none
                    492: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    493:   $ac_cv_sizeof_short)
                    494:     ac_cv_int_type_double_ucell="unsigned short"
                    495:     ;;
                    496:   $ac_cv_sizeof_int)
                    497:     ac_cv_int_type_double_ucell="unsigned int"
                    498:     ;;
                    499:   $ac_cv_sizeof_long)
                    500:     ac_cv_int_type_double_ucell="unsigned long"
                    501:     ;;
                    502:   $ac_cv_sizeof_long_long)
                    503:     ac_cv_int_type_double_ucell="unsigned long long"
                    504:     ;;
                    505:   $ac_cv_sizeof_intptr_t)
                    506:     ac_cv_int_type_double_ucell="unsigned intptr_t"
                    507:     ;;
                    508:   $ac_cv_sizeof_uint128_t)
                    509:     ac_cv_int_type_double_ucell="uint128_t"
                    510:     ;;
                    511: esac
                    512: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
                    513: 
                    514: if test "$ac_cv_int_type_double_cell" = none || \
                    515:    test "$ac_cv_int_type_double_ucell" = none
                    516: then
1.103     anton     517:        AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
                    518:        AC_LIBOBJ(dblsub)
                    519:        AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
                    520: else
                    521:        AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144     pazsan    522:        AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.103     anton     523: fi
                    524: 
                    525: AC_TYPE_OFF_T
                    526: AC_CHECK_SIZEOF(off_t)
                    527: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
                    528: ac_small_off_t=$?
                    529: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1       anton     530: 
1.109     anton     531: ENGINE_FLAGS=
                    532: AC_SUBST(ENGINE_FLAGS)
                    533: 
                    534: # Try if GCC understands -fno-gcse
                    535: 
                    536: AC_MSG_CHECKING([if $CC understands -fno-gcse])
                    537: CFLAGS_1="$CFLAGS"
                    538: CFLAGS="$CFLAGS -fno-gcse"
                    539: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
                    540: CFLAGS="$CFLAGS_1"
                    541: AC_MSG_RESULT($ac_nogcse)
                    542: 
                    543: # Try if GCC understands -fno-strict-aliasing
                    544: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
                    545: CFLAGS_1="$CFLAGS"
                    546: CFLAGS="$CFLAGS -fno-strict-aliasing"
                    547: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
                    548: CFLAGS="$CFLAGS_1"
                    549: AC_MSG_RESULT($ac_nostrictaliasing)
                    550: 
1.123     anton     551: # Try if GCC understands -fno-crossjumping
                    552: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88      pazsan    553: CFLAGS_1="$CFLAGS"
1.123     anton     554: CFLAGS="$CFLAGS -fno-crossjumping"
1.125     anton     555: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109     anton     556: CFLAGS="$CFLAGS_1"
1.124     pazsan    557: AC_MSG_RESULT($ac_nocrossjumping)
1.88      pazsan    558: 
1.137     pazsan    559: # Try if GCC understands -fno-reorder-blocks
                    560: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
                    561: CFLAGS_1="$CFLAGS"
                    562: CFLAGS="$CFLAGS -fno-reorder-blocks"
                    563: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
                    564: CFLAGS="$CFLAGS_1"
                    565: AC_MSG_RESULT($ac_noreorder_blocks)
                    566: 
1.130     anton     567: # Try if GCC understands __attribute__((unused))
                    568: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
                    569: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
                    570: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
                    571: AC_MSG_RESULT($MAYBE_UNUSED)
                    572: 
1.66      anton     573: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61      anton     574: AC_SUBST(asm_fs)
                    575: 
1.66      anton     576: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61      anton     577: AC_SUBST(disasm_fs)
                    578: 
1.116     anton     579: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114     anton     580: 
1.39      pazsan    581: case "$host_os" in
1.157     pazsan    582:        *win32*)
                    583:                # !!!FIXME!!! problems with cygwin and ';' as path separator
1.108     anton     584:                DIRSEP="\\\\"
1.127     anton     585:                PATHSEP=";"
1.142     anton     586:                #we want the builtins of command.com/cmd.exe and its
                    587:                # handling of .com files.
                    588:                #$COMSPEC contains the name of the Windows shell;
                    589:                # the ./ is there, because the bash does not recognize
                    590:                # absolute DOS filenames
                    591:                DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39      pazsan    592:                ;;
1.97      anton     593:        *darwin*)
                    594:                #Darwin uses some funny preprocessor by default; eliminate it:
1.127     anton     595:                AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120     anton     596:                CFLAGS="$CFLAGS -no-cpp-precomp"
1.98      anton     597:                DIRSEP="/"
1.127     anton     598:                PATHSEP=":"
1.141     anton     599:                DEFAULTSYSTEMPREFIX=""
1.98      anton     600:                ;;
1.39      pazsan    601:        *)
1.88      pazsan    602:                DIRSEP="/"
1.127     anton     603:                PATHSEP=":"
1.141     anton     604:                DEFAULTSYSTEMPREFIX=""
1.39      pazsan    605:                ;;
                    606: esac
1.88      pazsan    607: AC_SUBST(DIRSEP)
1.89      pazsan    608: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127     anton     609: AC_SUBST(PATHSEP)
                    610: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141     anton     611: AC_SUBST(DEFAULTSYSTEMPREFIX)
                    612: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.39      pazsan    613: 
1.170     anton     614: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
1.172     anton     615: #This magic incantation  seems to be completely undocumented.
                    616: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
1.170     anton     617: 
1.1       anton     618: dnl Now a little support for DOS/DJGCC
1.30      pazsan    619: AC_SUBST(GFORTH_EXE)
1.172     anton     620: GFORTH_EXE=""
1.48      anton     621: AC_SUBST(GFORTHFAST_EXE)
1.172     anton     622: GFORTHFAST_EXE=""
1.83      anton     623: AC_SUBST(GFORTHITC_EXE)
                    624: GFORTHITC_EXE=""
1.30      pazsan    625: AC_SUBST(GFORTHDITC_EXE)
                    626: GFORTHDITC_EXE=""
1.27      anton     627: 
                    628: AC_SUBST(FORTHSIZES)
1.24      anton     629: 
1.104     anton     630: dnl if test "$PEEPHOLE" = "yes"
                    631: dnl then
                    632: dnl    PEEPHOLEFLAG="true"
                    633: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
                    634: dnl else
                    635: dnl    PEEPHOLEFLAG="false"
                    636: dnl fi
                    637: PEEPHOLEFLAG="true"
1.79      pazsan    638: AC_SUBST(PEEPHOLEFLAG)
                    639: 
1.1       anton     640: dnl copy commands for systems that don't have links
1.29      pazsan    641: AC_SUBST(LINK_KERNL)
                    642: LINK_KERNL=""
1.1       anton     643: 
                    644: #if test $host_os=dos
                    645: #then
                    646: #  echo Configuring for DOS!!!
                    647: #  MAKE_EXE="coff2exe gforth"
1.29      pazsan    648: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1       anton     649: #fi
                    650: 
                    651: dnl the following macro produces a warning with autoconf-2.1
                    652: AC_C_BIGENDIAN
1.23      pazsan    653: AC_SUBST(KERNEL)
1.1       anton     654: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
                    655: if test $ac_cv_c_bigendian = yes; then
                    656:   bytesex=b
1.23      pazsan    657:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1       anton     658: else
                    659:   bytesex=l
1.23      pazsan    660:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1       anton     661: fi
                    662: 
1.91      anton     663: #check how to do asm(".skip 16")
1.169     anton     664: #echo "CFLAGS=$CFLAGS"
                    665: #echo "ac_link=$ac_link"
1.92      anton     666: AC_MSG_CHECKING([if and how we can waste code space])
1.136     anton     667: if test -z "$skipcode"; then
1.148     anton     668:     skipcode=no
                    669:     CFLAGS_1="$CFLAGS"
                    670:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136     anton     671:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
                    672:     do
1.91      anton     673:        AC_TRY_RUN(
1.136     anton     674: [int foo(int,int,int);
1.91      anton     675: main()
                    676: {
1.136     anton     677:   exit(foo(0,0,0)!=16);
1.91      anton     678: }
1.136     anton     679: int foo(int x, int y, int z)
1.91      anton     680: {
1.136     anton     681:   static void *labels[]={&&label1, &&label2};
1.91      anton     682:   if (x) {
1.136     anton     683:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91      anton     684:   label1:
1.148     anton     685:     asm("$i"); /* or ".space 16" or somesuch */
1.136     anton     686:   label2: ;
                    687:   }
                    688:   {
                    689:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
                    690:   return labels[1]-labels[0];
1.91      anton     691:   }
1.136     anton     692: }]
1.92      anton     693:        ,skipcode=$i; break
                    694:        ,,)
1.136     anton     695:     done
1.148     anton     696:     CFLAGS=$CFLAGS_1
1.136     anton     697: fi
1.92      anton     698: AC_MSG_RESULT($skipcode)
                    699: if test "$skipcode" = no
                    700: then 
1.136     anton     701:     if test -z $no_dynamic_default; then
                    702:        no_dynamic_default=1
                    703:        AC_MSG_WARN(Disabling default dynamic native code generation)
                    704:     fi
1.92      anton     705:     AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
                    706: else
                    707:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
                    708: fi
1.91      anton     709: 
1.174     anton     710: AC_MSG_CHECKING([if and how we can do comments in asm statements])
                    711: #the point here is to get asm statements that look different to
                    712: #gcc's "optimizer"
                    713: if test -z "$asmcomment"; then
                    714:     asmcomment=no
                    715:     CFLAGS_1="$CFLAGS"
                    716:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.176     anton     717:     for i in '"# "' '"! "' '"; "'; do
1.174     anton     718:        AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
                    719:     done
                    720:     CFLAGS=$CFLAGS_1
                    721: fi
                    722: AC_MSG_RESULT($asmcomment)
                    723: if test "$asmcomment" != no
                    724: then 
                    725:     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
                    726: fi
                    727: 
1.136     anton     728: test "$no_dynamic_default" || no_dynamic_default=0
1.92      anton     729: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91      anton     730: 
1.1       anton     731: dnl Checks for programs.
                    732: AC_PROG_LN_S
1.95      anton     733: AC_PROG_INSTALL
1.163     pazsan    734: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
1.1       anton     735: 
                    736: dnl Checks for library functions
1.2       anton     737: dnl This check is just for making later checks link with libm.
                    738: dnl using sin here is no good idea since it is built-into gcc and typechecked
                    739: AC_CHECK_LIB(m,asin)
1.31      anton     740: AC_CHECK_LIB(dl,dlopen)
1.152     pazsan    741: dnl check for libffi 2.x
                    742: AC_CHECK_LIB(ffi,ffi_call)
                    743: if test $ac_cv_lib_ffi_ffi_call = yes
                    744: then
                    745: LIBFFIFLAG="true"
                    746: FFCALLFLAG="false"
                    747: OLDCALLFLAG="false"
                    748: AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
                    749: else
1.124     pazsan    750: dnl check for ffcall libraries
                    751: dnl unfortunately, these four calls are separated out into a library each.
                    752: AC_CHECK_LIB(avcall,__builtin_avcall)
                    753: AC_CHECK_LIB(callback,__vacall_r)
                    754: AC_CHECK_LIB(vacall,vacall)
                    755: AC_CHECK_LIB(trampoline,alloc_trampoline)
1.152     pazsan    756: LIBFFIFLAG="false"
1.125     anton     757: FFCALLFLAG="false"
1.129     pazsan    758: OLDCALLFLAG="true"
                    759: test $ac_cv_lib_avcall___builtin_avcall = yes && FFCALLFLAG="true" && OLDCALLFLAG="false" && AC_DEFINE(HAS_FFCALL,,[define this if you want to use the ffcall libraries])
                    760: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
1.152     pazsan    761: fi
                    762: AC_SUBST(LIBFFIFLAG)
1.125     anton     763: AC_SUBST(FFCALLFLAG)
1.129     pazsan    764: AC_SUBST(OLDCALLFLAG)
1.32      pazsan    765: if test "$host_os" != "nextstep3"
                    766: then
                    767:        AC_FUNC_MEMCMP
                    768: fi
1.25      pazsan    769: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97      anton     770: AC_FUNC_FSEEKO
                    771: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
1.111     anton     772: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19      anton     773: AC_DECL_SYS_SIGLIST
1.138     anton     774: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90      anton     775: AC_CHECK_FUNCS(expm1 log1p)
                    776: AC_REPLACE_FUNCS(rint ecvt)
1.1       anton     777: dnl No check for select, because our replacement is no good under
                    778: dnl anything but DOS
1.62      anton     779: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63      anton     780: AC_FUNC_FNMATCH
1.87      pazsan    781: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28      anton     782: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34      anton     783: AM_PATH_LISPDIR
1.1       anton     784: 
1.183     pazsan    785: kernel_fi=kernl${vwordsize}${bytesex}.fi
1.178     pazsan    786: include_fi=kernl${wordsize}${bytesex}${EC}.fi
1.23      pazsan    787: AC_SUBST(kernel_fi)
1.178     pazsan    788: AC_SUBST(include_fi)
1.50      jwilke    789: 
1.76      anton     790: #this breaks bindists
                    791: #dnl replace srource directory by absolute value
                    792: #if test $srcdir = "."; then srcdir=`pwd` 
                    793: #fi
1.8       anton     794: 
1.34      anton     795: AC_SUBST(machine)
1.95      anton     796: AC_CONFIG_FILES([
1.31      anton     797: Makefile
1.45      pazsan    798: Makedist
1.43      anton     799: gforthmi
1.80      anton     800: vmgen
1.79      pazsan    801: machpc.fs
1.159     pazsan    802: envos.fs
1.35      anton     803: engine/Makefile
1.161     pazsan    804: doc/version.texi
                    805: build-ec ])
1.95      anton     806: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43      anton     807: chmod +x gforthmi
1.80      anton     808: chmod +x vmgen
1.162     pazsan    809: chmod +x build-ec
1.95      anton     810: test -d kernel||mkdir kernel]],[[]])
                    811: AC_OUTPUT
1.44      anton     812: 

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