Annotation of gforth/configure.in, revision 1.144

1.1       anton       1: dnl Process this file with autoconf to produce a configure script.
1.20      anton       2: 
1.143     anton       3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004 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
1.136     anton      24: AC_INIT([gforth],[0.6.2-20030910],[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!
1.136     anton      29: UPDATED="September 10, 2003"
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 "$CFLAGS" || CFLAGS=-O2
                     35: 
1.1       anton      36: AC_ARG_ENABLE(force-reg,
                     37: [  --enable-force-reg    Use explicit register declarations if they appear in
                     38:                          the machine.h file. This can cause a good speedup,
                     39:                          but also incorrect code with some gcc versions on
                     40:                          some processors (default disabled).],
1.89      pazsan     41: AC_DEFINE(FORCE_REG,,[Define if you want to use explicit register declarations for better performance or for more convenient CODE words (does not work with all GCC versions on all machines)]))
1.135     anton      42: AC_SUBST(PROFEXES)
                     43: AC_SUBST(PROFOBJS)
                     44: AC_ARG_ENABLE(prof,
                     45: [  --enable-prof          Build gforth-prof, which outputs frequently occuring
                     46:                           sequences of primitives.],
                     47: PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o")
1.1       anton      48: 
1.9       pazsan     49: AC_ARG_WITH(debug,
1.122     pazsan     50: [  --with-debug                  specifies option -g to compile with debug info
                     51:   --without-debug        omits the -g switch and creates smaller images on
                     52:                          machines where "strip" has problems with gcc style
                     53:                          debugging informations.],
1.9       pazsan     54: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
1.122     pazsan     55: 
1.104     anton      56: dnl PEEPHOLE="yes"
                     57: dnl AC_ARG_WITH(peephole,
                     58: dnl [  --with-peephole Enable peephole optimization (default)
                     59: dnl   --without-peephole       disables peephole optimization. Creates smaller,
                     60: dnl                    but slower images.],
                     61: dnl PEEPHOLE="$withval")
                     62: 
                     63: #variables mentioned in INSTALL
1.123     anton      64: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
1.104     anton      65: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
                     66: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
                     67: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
                     68: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
                     69: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
                     70: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
                     71: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
                     72: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
                     73: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
1.144   ! pazsan     74: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
1.123     anton      75: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
                     76: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
1.136     anton      77: AC_ARG_VAR(skip_code, [assembly code for skipping 16 bytes of code])
1.82      anton      78: 
1.96      anton      79: #set up feature test macros, so the tests get them right:
                     80: # turn on all POSIX, SUSv3, and GNU features if available
1.97      anton      81: AC_GNU_SOURCE
                     82: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
                     83: 
                     84: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
                     85: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
                     86: dnl but not for _XOPEN_SOURCE)
                     87: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
                     88: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
                     89: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96      anton      90: # turn on large file support with 64-bit off_t where available
1.105     anton      91: AC_SYS_LARGEFILE
                     92: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
                     93: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96      anton      94: 
1.82      anton      95: #currently we force direct threading this way.  Eventually we should
                     96: #setup in the arch and engine files right
1.16      anton      97: 
1.15      pazsan     98: AC_PROG_CC
                     99: 
1.92      anton     100: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9       pazsan    101: 
1.15      pazsan    102: AC_SUBST(CC)
1.9       pazsan    103: AC_SUBST(DEBUGFLAG)
1.7       anton     104: 
1.128     pazsan    105: AC_MSG_CHECKING(make type)
                    106: make_type=`make -v 2>&1|grep 'ake version'|sed 's/ version .*//'`
                    107: 
                    108: GNUMAKE='#'
                    109: test "$make_type" = "GNU Make" && GNUMAKE=''
                    110: 
                    111: AC_MSG_RESULT($make_type)
                    112: 
                    113: AC_SUBST(GNUMAKE)
                    114: 
1.50      jwilke    115: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
                    116: OLDLDFLAGS=$LDFLAGS
                    117: LDFLAGS="$LDFLAGS -export-dynamic"
1.69      anton     118: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
                    119: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
                    120: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50      jwilke    121: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
                    122: AC_MSG_RESULT($ac_export_dynamic)
                    123: 
1.1       anton     124: #terminology is a bit unusual here: The host is the system on which
                    125: #gforth will run; the system on which configure will run is the `build'
                    126: AC_CANONICAL_HOST
                    127: case "$host_cpu" in
1.136     anton     128:        arm*)
                    129:                machine=arm
                    130:                CFLAGS="$CFLAGS -fomit-frame-pointer"
                    131:                if test -z $no_dynamic_default; then
                    132:                    no_dynamic_default=1
                    133:                    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    134:                fi
                    135:                ;;
1.1       anton     136:        hppa*)
1.34      anton     137:                machine=hppa
1.46      anton     138:                $srcdir/mkinstalldirs arch/hppa
1.87      pazsan    139:                AC_LIBOBJ(../arch/hppa/cache)
1.134     anton     140:                #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
                    141:                LDFLAGS="$LDFLAGS -Xlinker -N"
1.47      anton     142:                LIBS="$LIBS -L/lib/pa1.1/"
1.1       anton     143:                ;;
                    144:        sparc*)
1.34      anton     145:                machine=sparc
1.1       anton     146:                ;;
1.31      anton     147:        i386)
1.34      anton     148:                machine=386
1.16      anton     149:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31      anton     150:                ;;
                    151:        i486)
1.34      anton     152:                machine=386
1.31      anton     153:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
                    154:                ;;
1.77      anton     155:        i*86)
1.34      anton     156:                machine=386
1.55      anton     157:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56      pazsan    158:                CFLAGS_1="$CFLAGS"
1.87      pazsan    159:                CFLAGS="$CFLAGS -march=pentium"
1.56      pazsan    160:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1       anton     161:                ;;
1.133     anton     162:        x86_64)
                    163:                machine=amd64
1.144   ! pazsan    164:                ac_includes_default="$ac_includes_default
        !           165: #include \"arch/generic/128bit.h\""
1.133     anton     166:                ;;
1.136     anton     167:        ia64*)
                    168:                machine=ia64
                    169:                AC_LIBOBJ(../arch/ia64/flush_icache_block)
                    170:                test "$skipcode" || skipcode="nop.i 0"
                    171:                #".skip 16" passes the test below,
                    172:                # but gives an assembler error in engine
                    173:                ;;
1.26      pazsan    174:         m68k)
1.34      anton     175:                machine=m68k
1.32      pazsan    176:                CFLAGS="$CFLAGS -fomit-frame-pointer"
                    177:                if test "$host_os" = "nextstep3"
                    178:                then
1.87      pazsan    179:                        AC_LIBOBJ(termios)
1.32      pazsan    180:                fi
1.26      pazsan    181:                ;;
1.1       anton     182:        mips*)
1.34      anton     183:                machine=mips
1.92      anton     184:                #dynamic native code has the following problems on MIPS:
                    185:                #
                    186:                #1) J/JAL seems relocatable, but is are only
                    187:                #relocatable within a 256MB-segment.  While we try to
                    188:                #get the linker to arrange this, there is no guarantee
                    189:                #that this will succeed (and if the user uses a lot of
                    190:                #memory, it is likely to fail).
                    191:                #
                    192:                #2) The way we generate dynamic native code may
                    193:                #violate MIPS architectural restrictions (in
                    194:                #particular, the delay slots of LW, MFLO, etc.)
                    195:                #
                    196:                #Therefore we disable dynamic native code by default:
1.136     anton     197:                if test -z $no_dynamic_default; then
                    198:                    no_dynamic_default=1
                    199:                    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
                    200:                fi
1.1       anton     201:                ;;
1.9       pazsan    202:        alpha*)
1.34      anton     203:                machine=alpha
1.58      anton     204:                #full IEEE FP support for more uniformity across platforms:
                    205:                CFLAGS="$CFLAGS -mieee"
1.9       pazsan    206:                ;;
1.69      anton     207:        power*|rs6000)
1.34      anton     208:                machine=power
1.46      anton     209:                $srcdir/mkinstalldirs arch/power
1.138     anton     210:                AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103     anton     211:                #long long is broken on (at least) gcc-2.95.* for PPC
1.104     anton     212:                test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
1.31      anton     213:                ;;
1.1       anton     214:        *)
1.92      anton     215:                AC_MSG_WARN([Using a generic machine description])
                    216:                AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
                    217:                AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34      anton     218:                machine=generic
1.97      anton     219:                #I-cache flushing would be needed for dynamic code generation
1.136     anton     220:                if test -z $no_dynamic_default; then
                    221:                    no_dynamic_default=1
                    222:                    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    223:                fi
1.1       anton     224: esac
1.10      anton     225: AC_SUBST(host)
1.103     anton     226: 
                    227: dnl the following macro produces a warning with autoconf-2.1
                    228: AC_CHECK_SIZEOF(char *)
                    229: case "$ac_cv_sizeof_char_p" in
                    230:   2)
                    231:     wordsize=16
                    232:     ;;
                    233:   4)
                    234:     wordsize=32
                    235:     ;;
                    236:   8)
                    237:     wordsize=64
                    238:     ;;
                    239: esac
                    240: 
                    241: AC_CHECK_SIZEOF(char)
                    242: AC_CHECK_SIZEOF(short)
                    243: AC_CHECK_SIZEOF(int)
                    244: AC_CHECK_SIZEOF(long)
                    245: AC_CHECK_SIZEOF(long long)
                    246: AC_CHECK_SIZEOF(intptr_t)
                    247: AC_CHECK_SIZEOF(int128_t)
1.144   ! pazsan    248: AC_CHECK_SIZEOF(uint128_t)
1.103     anton     249: 
                    250: AC_MSG_CHECKING([for a C type for cells])
                    251: ac_cv_int_type_cell=none
                    252: case "$ac_cv_sizeof_char_p" in
                    253:   $ac_cv_sizeof_int)
                    254:     ac_cv_int_type_cell=int
                    255:     ;;
                    256:   $ac_cv_sizeof_short)
                    257:     ac_cv_int_type_cell=short
                    258:     ;;
                    259:   $ac_cv_sizeof_char)
                    260:     ac_cv_int_type_cell=char
                    261:     ;;
                    262:   $ac_cv_sizeof_long)
                    263:     ac_cv_int_type_cell=long
                    264:     ;;
                    265:   $ac_cv_sizeof_long_long)
                    266:     ac_cv_int_type_cell="long long"
                    267:     ;;
                    268:   $ac_cv_sizeof_intptr_t)
                    269:     ac_cv_int_type_cell="intptr_t"
                    270:     ;;
                    271:   $ac_cv_sizeof_int128_t)
                    272:     ac_cv_int_type_cell="int128_t"
                    273:     ;;
                    274: esac
                    275: AC_MSG_RESULT($ac_cv_int_type_cell)
                    276: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
                    277: 
                    278: AC_MSG_CHECKING([for a C type for double-cells])
                    279: ac_cv_int_type_double_cell=none
                    280: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    281:   $ac_cv_sizeof_short)
                    282:     ac_cv_int_type_double_cell=short
                    283:     ;;
                    284:   $ac_cv_sizeof_int)
                    285:     ac_cv_int_type_double_cell=int
                    286:     ;;
                    287:   $ac_cv_sizeof_long)
                    288:     ac_cv_int_type_double_cell=long
                    289:     ;;
                    290:   $ac_cv_sizeof_long_long)
                    291:     ac_cv_int_type_double_cell="long long"
                    292:     ;;
                    293:   $ac_cv_sizeof_intptr_t)
                    294:     ac_cv_int_type_double_cell="intptr_t"
                    295:     ;;
                    296:   $ac_cv_sizeof_int128_t)
                    297:     ac_cv_int_type_double_cell="int128_t"
                    298:     ;;
                    299: esac
                    300: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144   ! pazsan    301: 
        !           302: AC_MSG_CHECKING([for a C type for unsigned double-cells])
        !           303: ac_cv_int_type_double_ucell=none
        !           304: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
        !           305:   $ac_cv_sizeof_short)
        !           306:     ac_cv_int_type_double_ucell="unsigned short"
        !           307:     ;;
        !           308:   $ac_cv_sizeof_int)
        !           309:     ac_cv_int_type_double_ucell="unsigned int"
        !           310:     ;;
        !           311:   $ac_cv_sizeof_long)
        !           312:     ac_cv_int_type_double_ucell="unsigned long"
        !           313:     ;;
        !           314:   $ac_cv_sizeof_long_long)
        !           315:     ac_cv_int_type_double_ucell="unsigned long long"
        !           316:     ;;
        !           317:   $ac_cv_sizeof_intptr_t)
        !           318:     ac_cv_int_type_double_ucell="unsigned intptr_t"
        !           319:     ;;
        !           320:   $ac_cv_sizeof_uint128_t)
        !           321:     ac_cv_int_type_double_ucell="uint128_t"
        !           322:     ;;
        !           323: esac
        !           324: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
        !           325: 
        !           326: if test "$ac_cv_int_type_double_cell" = none || \
        !           327:    test "$ac_cv_int_type_double_ucell" = none
        !           328: then
1.103     anton     329:        AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
                    330:        AC_LIBOBJ(dblsub)
                    331:        AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
                    332: else
                    333:        AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144   ! pazsan    334:        AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.103     anton     335: fi
                    336: 
                    337: AC_TYPE_OFF_T
                    338: AC_CHECK_SIZEOF(off_t)
                    339: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
                    340: ac_small_off_t=$?
                    341: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1       anton     342: 
1.109     anton     343: ENGINE_FLAGS=
                    344: AC_SUBST(ENGINE_FLAGS)
                    345: 
                    346: # Try if GCC understands -fno-gcse
                    347: 
                    348: AC_MSG_CHECKING([if $CC understands -fno-gcse])
                    349: CFLAGS_1="$CFLAGS"
                    350: CFLAGS="$CFLAGS -fno-gcse"
                    351: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
                    352: CFLAGS="$CFLAGS_1"
                    353: AC_MSG_RESULT($ac_nogcse)
                    354: 
                    355: # Try if GCC understands -fno-strict-aliasing
                    356: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
                    357: CFLAGS_1="$CFLAGS"
                    358: CFLAGS="$CFLAGS -fno-strict-aliasing"
                    359: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
                    360: CFLAGS="$CFLAGS_1"
                    361: AC_MSG_RESULT($ac_nostrictaliasing)
                    362: 
1.123     anton     363: # Try if GCC understands -fno-crossjumping
                    364: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88      pazsan    365: CFLAGS_1="$CFLAGS"
1.123     anton     366: CFLAGS="$CFLAGS -fno-crossjumping"
1.125     anton     367: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109     anton     368: CFLAGS="$CFLAGS_1"
1.124     pazsan    369: AC_MSG_RESULT($ac_nocrossjumping)
1.88      pazsan    370: 
1.137     pazsan    371: # Try if GCC understands -fno-reorder-blocks
                    372: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
                    373: CFLAGS_1="$CFLAGS"
                    374: CFLAGS="$CFLAGS -fno-reorder-blocks"
                    375: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
                    376: CFLAGS="$CFLAGS_1"
                    377: AC_MSG_RESULT($ac_noreorder_blocks)
                    378: 
1.130     anton     379: # Try if GCC understands __attribute__((unused))
                    380: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
                    381: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
                    382: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
                    383: AC_MSG_RESULT($MAYBE_UNUSED)
                    384: 
1.66      anton     385: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61      anton     386: AC_SUBST(asm_fs)
                    387: 
1.66      anton     388: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61      anton     389: AC_SUBST(disasm_fs)
                    390: 
1.116     anton     391: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114     anton     392: 
1.39      pazsan    393: case "$host_os" in
1.107     anton     394:        *win32|cygwin)
1.108     anton     395:                DIRSEP="\\\\"
1.127     anton     396:                PATHSEP=";"
1.142     anton     397:                #we want the builtins of command.com/cmd.exe and its
                    398:                # handling of .com files.
                    399:                #$COMSPEC contains the name of the Windows shell;
                    400:                # the ./ is there, because the bash does not recognize
                    401:                # absolute DOS filenames
                    402:                DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39      pazsan    403:                ;;
1.97      anton     404:        *darwin*)
                    405:                #Darwin uses some funny preprocessor by default; eliminate it:
1.127     anton     406:                AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120     anton     407:                CFLAGS="$CFLAGS -no-cpp-precomp"
1.98      anton     408:                DIRSEP="/"
1.127     anton     409:                PATHSEP=":"
1.141     anton     410:                DEFAULTSYSTEMPREFIX=""
1.98      anton     411:                ;;
1.39      pazsan    412:        *)
1.88      pazsan    413:                DIRSEP="/"
1.127     anton     414:                PATHSEP=":"
1.141     anton     415:                DEFAULTSYSTEMPREFIX=""
1.39      pazsan    416:                ;;
                    417: esac
1.88      pazsan    418: AC_SUBST(DIRSEP)
1.89      pazsan    419: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127     anton     420: AC_SUBST(PATHSEP)
                    421: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141     anton     422: AC_SUBST(DEFAULTSYSTEMPREFIX)
                    423: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.39      pazsan    424: 
1.1       anton     425: dnl Now a little support for DOS/DJGCC
1.30      pazsan    426: AC_SUBST(GFORTH_EXE)
                    427: GFORTH_EXE=""
1.48      anton     428: AC_SUBST(GFORTHFAST_EXE)
                    429: GFORTHFAST_EXE=""
1.83      anton     430: AC_SUBST(GFORTHITC_EXE)
                    431: GFORTHITC_EXE=""
1.30      pazsan    432: AC_SUBST(GFORTHDITC_EXE)
                    433: GFORTHDITC_EXE=""
1.27      anton     434: 
                    435: AC_SUBST(FORTHSIZES)
1.24      anton     436: 
1.104     anton     437: dnl if test "$PEEPHOLE" = "yes"
                    438: dnl then
                    439: dnl    PEEPHOLEFLAG="true"
                    440: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
                    441: dnl else
                    442: dnl    PEEPHOLEFLAG="false"
                    443: dnl fi
                    444: PEEPHOLEFLAG="true"
1.79      pazsan    445: AC_SUBST(PEEPHOLEFLAG)
                    446: 
1.1       anton     447: dnl copy commands for systems that don't have links
1.29      pazsan    448: AC_SUBST(LINK_KERNL)
                    449: LINK_KERNL=""
1.1       anton     450: 
                    451: #if test $host_os=dos
                    452: #then
                    453: #  echo Configuring for DOS!!!
                    454: #  MAKE_EXE="coff2exe gforth"
1.29      pazsan    455: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1       anton     456: #fi
                    457: 
                    458: dnl the following macro produces a warning with autoconf-2.1
                    459: AC_C_BIGENDIAN
1.23      pazsan    460: AC_SUBST(KERNEL)
1.1       anton     461: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
                    462: if test $ac_cv_c_bigendian = yes; then
                    463:   bytesex=b
1.23      pazsan    464:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1       anton     465: else
                    466:   bytesex=l
1.23      pazsan    467:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1       anton     468: fi
                    469: 
1.91      anton     470: #check how to do asm(".skip 16")
1.92      anton     471: AC_MSG_CHECKING([if and how we can waste code space])
1.136     anton     472: if test -z "$skipcode"; then
                    473:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
                    474:     do
1.91      anton     475:        AC_TRY_RUN(
1.136     anton     476: [int foo(int,int,int);
1.91      anton     477: main()
                    478: {
1.136     anton     479:   exit(foo(0,0,0)!=16);
1.91      anton     480: }
1.136     anton     481: int foo(int x, int y, int z)
1.91      anton     482: {
1.136     anton     483:   static void *labels[]={&&label1, &&label2};
1.91      anton     484:   if (x) {
1.136     anton     485:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91      anton     486:   label1:
1.136     anton     487:     asm(".skip 16"); /* or ".space 16" or somesuch */
                    488:   label2: ;
                    489:   }
                    490:   {
                    491:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
                    492:   return labels[1]-labels[0];
1.91      anton     493:   }
1.136     anton     494: }]
1.92      anton     495:        ,skipcode=$i; break
                    496:        ,,)
1.136     anton     497:     done
                    498: fi
1.92      anton     499: AC_MSG_RESULT($skipcode)
                    500: if test "$skipcode" = no
                    501: then 
1.136     anton     502:     if test -z $no_dynamic_default; then
                    503:        no_dynamic_default=1
                    504:        AC_MSG_WARN(Disabling default dynamic native code generation)
                    505:     fi
1.92      anton     506:     AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
                    507: else
                    508:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
                    509: fi
1.91      anton     510: 
1.136     anton     511: test "$no_dynamic_default" || no_dynamic_default=0
1.92      anton     512: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91      anton     513: 
1.1       anton     514: dnl Checks for programs.
                    515: AC_PROG_LN_S
1.95      anton     516: AC_PROG_INSTALL
1.1       anton     517: 
                    518: dnl Checks for library functions
1.2       anton     519: dnl This check is just for making later checks link with libm.
                    520: dnl using sin here is no good idea since it is built-into gcc and typechecked
                    521: AC_CHECK_LIB(m,asin)
1.31      anton     522: AC_CHECK_LIB(dl,dlopen)
1.124     pazsan    523: dnl check for ffcall libraries
                    524: dnl unfortunately, these four calls are separated out into a library each.
                    525: AC_CHECK_LIB(avcall,__builtin_avcall)
                    526: AC_CHECK_LIB(callback,__vacall_r)
                    527: AC_CHECK_LIB(vacall,vacall)
                    528: AC_CHECK_LIB(trampoline,alloc_trampoline)
1.125     anton     529: FFCALLFLAG="false"
1.129     pazsan    530: OLDCALLFLAG="true"
                    531: 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])
                    532: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
1.125     anton     533: AC_SUBST(FFCALLFLAG)
1.129     pazsan    534: AC_SUBST(OLDCALLFLAG)
1.32      pazsan    535: if test "$host_os" != "nextstep3"
                    536: then
                    537:        AC_FUNC_MEMCMP
                    538: fi
1.25      pazsan    539: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97      anton     540: AC_FUNC_FSEEKO
                    541: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
1.111     anton     542: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19      anton     543: AC_DECL_SYS_SIGLIST
1.138     anton     544: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90      anton     545: AC_CHECK_FUNCS(expm1 log1p)
                    546: AC_REPLACE_FUNCS(rint ecvt)
1.1       anton     547: dnl No check for select, because our replacement is no good under
                    548: dnl anything but DOS
1.62      anton     549: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63      anton     550: AC_FUNC_FNMATCH
1.87      pazsan    551: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28      anton     552: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34      anton     553: AM_PATH_LISPDIR
1.1       anton     554: 
1.23      pazsan    555: kernel_fi=kernl${wordsize}${bytesex}.fi
                    556: AC_SUBST(kernel_fi)
1.50      jwilke    557: 
1.76      anton     558: #this breaks bindists
                    559: #dnl replace srource directory by absolute value
                    560: #if test $srcdir = "."; then srcdir=`pwd` 
                    561: #fi
1.8       anton     562: 
1.34      anton     563: AC_SUBST(machine)
1.95      anton     564: AC_CONFIG_FILES([
1.31      anton     565: Makefile
1.45      pazsan    566: Makedist
1.43      anton     567: gforthmi
1.80      anton     568: vmgen
1.79      pazsan    569: machpc.fs
1.35      anton     570: engine/Makefile
1.95      anton     571: doc/version.texi ])
                    572: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43      anton     573: chmod +x gforthmi
1.80      anton     574: chmod +x vmgen
1.95      anton     575: test -d kernel||mkdir kernel]],[[]])
                    576: AC_OUTPUT
1.44      anton     577: 

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