Annotation of gforth/configure.in, revision 1.137

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

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