Annotation of gforth/configure.in, revision 1.178

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
1.164     pazsan     24: AC_INIT([gforth],[0.6.2-20060527],[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="$withval")
                     88: 
1.167     pazsan     89: AC_ARG_ENABLE(ec,
                     90:        AC_HELP_STRING([--enable-ec],
1.168     pazsan     91:                        [  Build gforth for systems without OS.]),
1.167     pazsan     92:        ,enable_ec=no)
                     93: if test "$enable_ec" = "yes"; then
1.168     pazsan     94:   echo "defining standalone system"
                     95:   AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
1.167     pazsan     96:   EC_MODE="true"
1.178   ! pazsan     97:   EC="-ec"
        !            98:   engine2=""
        !            99:   engine_fast2=""
        !           100:   no_dynamic="-DNO_DYNAMIC"
        !           101:   image_i="image.i"
1.167     pazsan    102: else
1.168     pazsan    103:   echo "defining hosted system"
1.167     pazsan    104:   EC_MODE="false"
1.178   ! pazsan    105:   EC=""
        !           106:   engine2="engine2.o"
        !           107:   engine_fast2="engine-fast2.o"
        !           108:   no_dynamic=""
        !           109:   image_i=""
1.167     pazsan    110: fi
                    111: 
1.104     anton     112: #variables mentioned in INSTALL
1.123     anton     113: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
1.104     anton     114: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
1.151     anton     115: AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).])
1.173     anton     116: AC_ARG_VAR(GCC_PR15242_WORKAROUND, [Force the enabling (1) or disabling (0) of a workaround for a gcc-3.x performance bug (default unset: use workaround for gcc-3.x)])
                    117: 
1.104     anton     118: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
                    119: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
                    120: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
                    121: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
                    122: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
                    123: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
                    124: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
                    125: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
1.144     pazsan    126: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
1.123     anton     127: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
                    128: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
1.166     anton     129: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
1.174     anton     130: AC_ARG_VAR(asmcomment, [assembler comment start string])
1.175     anton     131: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
1.82      anton     132: 
1.96      anton     133: #set up feature test macros, so the tests get them right:
                    134: # turn on all POSIX, SUSv3, and GNU features if available
1.97      anton     135: AC_GNU_SOURCE
                    136: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
                    137: 
                    138: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
                    139: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
                    140: dnl but not for _XOPEN_SOURCE)
                    141: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
                    142: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
                    143: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96      anton     144: # turn on large file support with 64-bit off_t where available
1.105     anton     145: AC_SYS_LARGEFILE
                    146: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
                    147: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96      anton     148: 
1.82      anton     149: #currently we force direct threading this way.  Eventually we should
                    150: #setup in the arch and engine files right
1.16      anton     151: 
1.15      pazsan    152: AC_PROG_CC
                    153: 
1.92      anton     154: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9       pazsan    155: 
1.15      pazsan    156: AC_SUBST(CC)
1.9       pazsan    157: AC_SUBST(DEBUGFLAG)
1.178   ! pazsan    158: AC_SUBST(EC)
1.167     pazsan    159: AC_SUBST(EC_MODE)
1.178   ! pazsan    160: AC_SUBST(engine2)
        !           161: AC_SUBST(engine_fast2)
        !           162: AC_SUBST(no_dynamic)
        !           163: AC_SUBST(image_i)
1.7       anton     164: 
1.174     anton     165: #this is used to disable some (not generally essential) part of the
                    166: #Makefile that some makes don't grok.  It would be better to test for
                    167: #this specific Makefile feature than the make version.
1.128     pazsan    168: AC_MSG_CHECKING(make type)
1.174     anton     169: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
1.128     pazsan    170: GNUMAKE='#'
                    171: test "$make_type" = "GNU Make" && GNUMAKE=''
                    172: AC_MSG_RESULT($make_type)
                    173: AC_SUBST(GNUMAKE)
                    174: 
1.50      jwilke    175: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
                    176: OLDLDFLAGS=$LDFLAGS
                    177: LDFLAGS="$LDFLAGS -export-dynamic"
1.69      anton     178: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
                    179: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
                    180: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50      jwilke    181: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
                    182: AC_MSG_RESULT($ac_export_dynamic)
                    183: 
1.1       anton     184: #terminology is a bit unusual here: The host is the system on which
                    185: #gforth will run; the system on which configure will run is the `build'
                    186: AC_CANONICAL_HOST
                    187: case "$host_cpu" in
1.136     anton     188:        arm*)
                    189:                machine=arm
                    190:                CFLAGS="$CFLAGS -fomit-frame-pointer"
1.175     anton     191:                if test -z $arm_cacheflush; then
1.136     anton     192:                    no_dynamic_default=1
1.175     anton     193:                     arm_cacheflush=arch/arm/cacheflush0
1.136     anton     194:                    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    195:                fi
1.175     anton     196:                 AC_LIBSOURCES([../arch/arm/cacheflush0, ../arch/arm/cacheflush1, ../arch/arm/cacheflush2])
                    197:                 AC_LIBOBJ(../$arm_cacheflush)
1.177     anton     198:                 #longer skipcodes lead to problems on ARM, and it uses
                    199:                 #only 4-byte alignment anyway
                    200:                test "$skipcode" || skipcode="nop"
1.136     anton     201:                ;;
1.1       anton     202:        hppa*)
1.34      anton     203:                machine=hppa
1.46      anton     204:                $srcdir/mkinstalldirs arch/hppa
1.87      pazsan    205:                AC_LIBOBJ(../arch/hppa/cache)
1.134     anton     206:                #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
                    207:                LDFLAGS="$LDFLAGS -Xlinker -N"
1.47      anton     208:                LIBS="$LIBS -L/lib/pa1.1/"
1.1       anton     209:                ;;
                    210:        sparc*)
1.34      anton     211:                machine=sparc
1.1       anton     212:                ;;
1.31      anton     213:        i386)
1.34      anton     214:                machine=386
1.16      anton     215:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31      anton     216:                ;;
                    217:        i486)
1.34      anton     218:                machine=386
1.31      anton     219:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
                    220:                ;;
1.77      anton     221:        i*86)
1.34      anton     222:                machine=386
1.55      anton     223:                CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56      pazsan    224:                CFLAGS_1="$CFLAGS"
1.87      pazsan    225:                CFLAGS="$CFLAGS -march=pentium"
1.56      pazsan    226:                AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1       anton     227:                ;;
1.133     anton     228:        x86_64)
                    229:                machine=amd64
                    230:                ;;
1.136     anton     231:        ia64*)
                    232:                machine=ia64
                    233:                AC_LIBOBJ(../arch/ia64/flush_icache_block)
                    234:                test "$skipcode" || skipcode="nop.i 0"
                    235:                #".skip 16" passes the test below,
                    236:                # but gives an assembler error in engine
                    237:                ;;
1.26      pazsan    238:         m68k)
1.34      anton     239:                machine=m68k
1.32      pazsan    240:                CFLAGS="$CFLAGS -fomit-frame-pointer"
                    241:                if test "$host_os" = "nextstep3"
                    242:                then
1.87      pazsan    243:                        AC_LIBOBJ(termios)
1.32      pazsan    244:                fi
1.26      pazsan    245:                ;;
1.1       anton     246:        mips*)
1.34      anton     247:                machine=mips
1.92      anton     248:                #dynamic native code has the following problems on MIPS:
                    249:                #
                    250:                #1) J/JAL seems relocatable, but is are only
                    251:                #relocatable within a 256MB-segment.  While we try to
                    252:                #get the linker to arrange this, there is no guarantee
                    253:                #that this will succeed (and if the user uses a lot of
                    254:                #memory, it is likely to fail).
                    255:                #
                    256:                #2) The way we generate dynamic native code may
                    257:                #violate MIPS architectural restrictions (in
                    258:                #particular, the delay slots of LW, MFLO, etc.)
                    259:                #
                    260:                #Therefore we disable dynamic native code by default:
1.136     anton     261:                if test -z $no_dynamic_default; then
                    262:                    no_dynamic_default=1
                    263:                    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
                    264:                fi
1.1       anton     265:                ;;
1.9       pazsan    266:        alpha*)
1.34      anton     267:                machine=alpha
1.58      anton     268:                #full IEEE FP support for more uniformity across platforms:
                    269:                CFLAGS="$CFLAGS -mieee"
1.9       pazsan    270:                ;;
1.69      anton     271:        power*|rs6000)
1.34      anton     272:                machine=power
1.46      anton     273:                $srcdir/mkinstalldirs arch/power
1.138     anton     274:                AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103     anton     275:                #long long is broken on (at least) gcc-2.95.* for PPC
1.165     anton     276:                test x$ac_cv_sizeof_long_long = x && 
                    277:                ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
                    278:                ac_cv_sizeof_long_long=0
1.31      anton     279:                ;;
1.1       anton     280:        *)
1.92      anton     281:                AC_MSG_WARN([Using a generic machine description])
                    282:                AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
                    283:                AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34      anton     284:                machine=generic
1.97      anton     285:                #I-cache flushing would be needed for dynamic code generation
1.136     anton     286:                if test -z $no_dynamic_default; then
                    287:                    no_dynamic_default=1
                    288:                    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
                    289:                fi
1.1       anton     290: esac
1.10      anton     291: AC_SUBST(host)
1.151     anton     292: 
                    293: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
                    294: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
                    295:                   [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146     pazsan    296: 
1.173     anton     297: test x$GCC_PR15242_WORKAROUND = x ||
                    298: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
                    299:                    [force (1) or forbid (0) use of a workaround for a gcc performance bug])
                    300: 
                    301: dnl AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
                    302: dnl generation on gccs affected by PR15242])
                    303: 
                    304: 
1.146     pazsan    305: if test "${enable_force_ll+set}" = set; then
                    306:    ac_includes_default="$ac_includes_default
                    307: #include \"arch/generic/128bit.h\""
                    308: fi
1.103     anton     309: 
                    310: dnl the following macro produces a warning with autoconf-2.1
                    311: AC_CHECK_SIZEOF(char *)
                    312: case "$ac_cv_sizeof_char_p" in
                    313:   2)
                    314:     wordsize=16
                    315:     ;;
                    316:   4)
                    317:     wordsize=32
                    318:     ;;
                    319:   8)
                    320:     wordsize=64
                    321:     ;;
                    322: esac
                    323: 
                    324: AC_CHECK_SIZEOF(char)
                    325: AC_CHECK_SIZEOF(short)
                    326: AC_CHECK_SIZEOF(int)
                    327: AC_CHECK_SIZEOF(long)
                    328: AC_CHECK_SIZEOF(long long)
                    329: AC_CHECK_SIZEOF(intptr_t)
                    330: AC_CHECK_SIZEOF(int128_t)
1.144     pazsan    331: AC_CHECK_SIZEOF(uint128_t)
1.103     anton     332: 
                    333: AC_MSG_CHECKING([for a C type for cells])
                    334: ac_cv_int_type_cell=none
                    335: case "$ac_cv_sizeof_char_p" in
                    336:   $ac_cv_sizeof_int)
                    337:     ac_cv_int_type_cell=int
                    338:     ;;
                    339:   $ac_cv_sizeof_short)
                    340:     ac_cv_int_type_cell=short
                    341:     ;;
                    342:   $ac_cv_sizeof_char)
                    343:     ac_cv_int_type_cell=char
                    344:     ;;
                    345:   $ac_cv_sizeof_long)
                    346:     ac_cv_int_type_cell=long
                    347:     ;;
                    348:   $ac_cv_sizeof_long_long)
                    349:     ac_cv_int_type_cell="long long"
                    350:     ;;
                    351:   $ac_cv_sizeof_intptr_t)
                    352:     ac_cv_int_type_cell="intptr_t"
                    353:     ;;
                    354:   $ac_cv_sizeof_int128_t)
                    355:     ac_cv_int_type_cell="int128_t"
                    356:     ;;
                    357: esac
                    358: AC_MSG_RESULT($ac_cv_int_type_cell)
                    359: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
                    360: 
1.153     pazsan    361: AC_MSG_CHECKING([for a C type for wydes])
                    362: ac_cv_wyde_type_cell=none
                    363: case 2 in
                    364:   $ac_cv_sizeof_int)
                    365:     ac_cv_wyde_type_cell=int
                    366:     ;;
                    367:   $ac_cv_sizeof_short)
                    368:     ac_cv_wyde_type_cell=short
                    369:     ;;
                    370:   $ac_cv_sizeof_char)
                    371:     ac_cv_wyde_type_cell=char
                    372:     ;;
                    373:   $ac_cv_sizeof_long)
                    374:     ac_cv_wyde_type_cell=long
                    375:     ;;
                    376:   $ac_cv_sizeof_long_long)
                    377:     ac_cv_wyde_type_cell="long long"
                    378:     ;;
                    379:   $ac_cv_sizeof_intptr_t)
                    380:     ac_cv_wyde_type_cell="intptr_t"
                    381:     ;;
                    382:   $ac_cv_sizeof_int128_t)
                    383:     ac_cv_wyde_type_cell="int128_t"
                    384:     ;;
                    385: esac
                    386: AC_MSG_RESULT($ac_cv_wyde_type_cell)
                    387: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
                    388: 
                    389: AC_MSG_CHECKING([for a C type for tetrabytes])
                    390: ac_cv_tetrabyte_type_cell=none
                    391: case 4 in
                    392:   $ac_cv_sizeof_int)
                    393:     ac_cv_tetrabyte_type_cell=int
                    394:     ;;
                    395:   $ac_cv_sizeof_short)
                    396:     ac_cv_tetrabyte_type_cell=short
                    397:     ;;
                    398:   $ac_cv_sizeof_char)
                    399:     ac_cv_tetrabyte_type_cell=char
                    400:     ;;
                    401:   $ac_cv_sizeof_long)
                    402:     ac_cv_tetrabyte_type_cell=long
                    403:     ;;
                    404:   $ac_cv_sizeof_long_long)
                    405:     ac_cv_tetrabyte_type_cell="long long"
                    406:     ;;
                    407:   $ac_cv_sizeof_intptr_t)
                    408:     ac_cv_tetrabyte_type_cell="intptr_t"
                    409:     ;;
                    410:   $ac_cv_sizeof_int128_t)
                    411:     ac_cv_tetrabyte_type_cell="int128_t"
                    412:     ;;
                    413: esac
                    414: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
                    415: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
                    416: 
1.103     anton     417: AC_MSG_CHECKING([for a C type for double-cells])
                    418: ac_cv_int_type_double_cell=none
                    419: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    420:   $ac_cv_sizeof_short)
                    421:     ac_cv_int_type_double_cell=short
                    422:     ;;
                    423:   $ac_cv_sizeof_int)
                    424:     ac_cv_int_type_double_cell=int
                    425:     ;;
                    426:   $ac_cv_sizeof_long)
                    427:     ac_cv_int_type_double_cell=long
                    428:     ;;
                    429:   $ac_cv_sizeof_long_long)
                    430:     ac_cv_int_type_double_cell="long long"
                    431:     ;;
                    432:   $ac_cv_sizeof_intptr_t)
                    433:     ac_cv_int_type_double_cell="intptr_t"
                    434:     ;;
                    435:   $ac_cv_sizeof_int128_t)
                    436:     ac_cv_int_type_double_cell="int128_t"
                    437:     ;;
                    438: esac
                    439: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144     pazsan    440: 
                    441: AC_MSG_CHECKING([for a C type for unsigned double-cells])
                    442: ac_cv_int_type_double_ucell=none
                    443: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
                    444:   $ac_cv_sizeof_short)
                    445:     ac_cv_int_type_double_ucell="unsigned short"
                    446:     ;;
                    447:   $ac_cv_sizeof_int)
                    448:     ac_cv_int_type_double_ucell="unsigned int"
                    449:     ;;
                    450:   $ac_cv_sizeof_long)
                    451:     ac_cv_int_type_double_ucell="unsigned long"
                    452:     ;;
                    453:   $ac_cv_sizeof_long_long)
                    454:     ac_cv_int_type_double_ucell="unsigned long long"
                    455:     ;;
                    456:   $ac_cv_sizeof_intptr_t)
                    457:     ac_cv_int_type_double_ucell="unsigned intptr_t"
                    458:     ;;
                    459:   $ac_cv_sizeof_uint128_t)
                    460:     ac_cv_int_type_double_ucell="uint128_t"
                    461:     ;;
                    462: esac
                    463: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
                    464: 
                    465: if test "$ac_cv_int_type_double_cell" = none || \
                    466:    test "$ac_cv_int_type_double_ucell" = none
                    467: then
1.103     anton     468:        AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
                    469:        AC_LIBOBJ(dblsub)
                    470:        AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
                    471: else
                    472:        AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144     pazsan    473:        AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.103     anton     474: fi
                    475: 
                    476: AC_TYPE_OFF_T
                    477: AC_CHECK_SIZEOF(off_t)
                    478: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
                    479: ac_small_off_t=$?
                    480: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1       anton     481: 
1.109     anton     482: ENGINE_FLAGS=
                    483: AC_SUBST(ENGINE_FLAGS)
                    484: 
                    485: # Try if GCC understands -fno-gcse
                    486: 
                    487: AC_MSG_CHECKING([if $CC understands -fno-gcse])
                    488: CFLAGS_1="$CFLAGS"
                    489: CFLAGS="$CFLAGS -fno-gcse"
                    490: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
                    491: CFLAGS="$CFLAGS_1"
                    492: AC_MSG_RESULT($ac_nogcse)
                    493: 
                    494: # Try if GCC understands -fno-strict-aliasing
                    495: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
                    496: CFLAGS_1="$CFLAGS"
                    497: CFLAGS="$CFLAGS -fno-strict-aliasing"
                    498: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
                    499: CFLAGS="$CFLAGS_1"
                    500: AC_MSG_RESULT($ac_nostrictaliasing)
                    501: 
1.123     anton     502: # Try if GCC understands -fno-crossjumping
                    503: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88      pazsan    504: CFLAGS_1="$CFLAGS"
1.123     anton     505: CFLAGS="$CFLAGS -fno-crossjumping"
1.125     anton     506: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109     anton     507: CFLAGS="$CFLAGS_1"
1.124     pazsan    508: AC_MSG_RESULT($ac_nocrossjumping)
1.88      pazsan    509: 
1.137     pazsan    510: # Try if GCC understands -fno-reorder-blocks
                    511: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
                    512: CFLAGS_1="$CFLAGS"
                    513: CFLAGS="$CFLAGS -fno-reorder-blocks"
                    514: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
                    515: CFLAGS="$CFLAGS_1"
                    516: AC_MSG_RESULT($ac_noreorder_blocks)
                    517: 
1.130     anton     518: # Try if GCC understands __attribute__((unused))
                    519: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
                    520: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
                    521: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
                    522: AC_MSG_RESULT($MAYBE_UNUSED)
                    523: 
1.66      anton     524: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61      anton     525: AC_SUBST(asm_fs)
                    526: 
1.66      anton     527: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61      anton     528: AC_SUBST(disasm_fs)
                    529: 
1.116     anton     530: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114     anton     531: 
1.39      pazsan    532: case "$host_os" in
1.157     pazsan    533:        *win32*)
                    534:                # !!!FIXME!!! problems with cygwin and ';' as path separator
1.108     anton     535:                DIRSEP="\\\\"
1.127     anton     536:                PATHSEP=";"
1.142     anton     537:                #we want the builtins of command.com/cmd.exe and its
                    538:                # handling of .com files.
                    539:                #$COMSPEC contains the name of the Windows shell;
                    540:                # the ./ is there, because the bash does not recognize
                    541:                # absolute DOS filenames
                    542:                DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39      pazsan    543:                ;;
1.97      anton     544:        *darwin*)
                    545:                #Darwin uses some funny preprocessor by default; eliminate it:
1.127     anton     546:                AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120     anton     547:                CFLAGS="$CFLAGS -no-cpp-precomp"
1.98      anton     548:                DIRSEP="/"
1.127     anton     549:                PATHSEP=":"
1.141     anton     550:                DEFAULTSYSTEMPREFIX=""
1.98      anton     551:                ;;
1.39      pazsan    552:        *)
1.88      pazsan    553:                DIRSEP="/"
1.127     anton     554:                PATHSEP=":"
1.141     anton     555:                DEFAULTSYSTEMPREFIX=""
1.39      pazsan    556:                ;;
                    557: esac
1.88      pazsan    558: AC_SUBST(DIRSEP)
1.89      pazsan    559: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127     anton     560: AC_SUBST(PATHSEP)
                    561: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141     anton     562: AC_SUBST(DEFAULTSYSTEMPREFIX)
                    563: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.39      pazsan    564: 
1.170     anton     565: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
1.172     anton     566: #This magic incantation  seems to be completely undocumented.
                    567: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
1.170     anton     568: 
1.1       anton     569: dnl Now a little support for DOS/DJGCC
1.30      pazsan    570: AC_SUBST(GFORTH_EXE)
1.172     anton     571: GFORTH_EXE=""
1.48      anton     572: AC_SUBST(GFORTHFAST_EXE)
1.172     anton     573: GFORTHFAST_EXE=""
1.83      anton     574: AC_SUBST(GFORTHITC_EXE)
                    575: GFORTHITC_EXE=""
1.30      pazsan    576: AC_SUBST(GFORTHDITC_EXE)
                    577: GFORTHDITC_EXE=""
1.27      anton     578: 
                    579: AC_SUBST(FORTHSIZES)
1.24      anton     580: 
1.104     anton     581: dnl if test "$PEEPHOLE" = "yes"
                    582: dnl then
                    583: dnl    PEEPHOLEFLAG="true"
                    584: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
                    585: dnl else
                    586: dnl    PEEPHOLEFLAG="false"
                    587: dnl fi
                    588: PEEPHOLEFLAG="true"
1.79      pazsan    589: AC_SUBST(PEEPHOLEFLAG)
                    590: 
1.1       anton     591: dnl copy commands for systems that don't have links
1.29      pazsan    592: AC_SUBST(LINK_KERNL)
                    593: LINK_KERNL=""
1.1       anton     594: 
                    595: #if test $host_os=dos
                    596: #then
                    597: #  echo Configuring for DOS!!!
                    598: #  MAKE_EXE="coff2exe gforth"
1.29      pazsan    599: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1       anton     600: #fi
                    601: 
                    602: dnl the following macro produces a warning with autoconf-2.1
                    603: AC_C_BIGENDIAN
1.23      pazsan    604: AC_SUBST(KERNEL)
1.1       anton     605: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
                    606: if test $ac_cv_c_bigendian = yes; then
                    607:   bytesex=b
1.23      pazsan    608:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1       anton     609: else
                    610:   bytesex=l
1.23      pazsan    611:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1       anton     612: fi
                    613: 
1.91      anton     614: #check how to do asm(".skip 16")
1.169     anton     615: #echo "CFLAGS=$CFLAGS"
                    616: #echo "ac_link=$ac_link"
1.92      anton     617: AC_MSG_CHECKING([if and how we can waste code space])
1.136     anton     618: if test -z "$skipcode"; then
1.148     anton     619:     skipcode=no
                    620:     CFLAGS_1="$CFLAGS"
                    621:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136     anton     622:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
                    623:     do
1.91      anton     624:        AC_TRY_RUN(
1.136     anton     625: [int foo(int,int,int);
1.91      anton     626: main()
                    627: {
1.136     anton     628:   exit(foo(0,0,0)!=16);
1.91      anton     629: }
1.136     anton     630: int foo(int x, int y, int z)
1.91      anton     631: {
1.136     anton     632:   static void *labels[]={&&label1, &&label2};
1.91      anton     633:   if (x) {
1.136     anton     634:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91      anton     635:   label1:
1.148     anton     636:     asm("$i"); /* or ".space 16" or somesuch */
1.136     anton     637:   label2: ;
                    638:   }
                    639:   {
                    640:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
                    641:   return labels[1]-labels[0];
1.91      anton     642:   }
1.136     anton     643: }]
1.92      anton     644:        ,skipcode=$i; break
                    645:        ,,)
1.136     anton     646:     done
1.148     anton     647:     CFLAGS=$CFLAGS_1
1.136     anton     648: fi
1.92      anton     649: AC_MSG_RESULT($skipcode)
                    650: if test "$skipcode" = no
                    651: then 
1.136     anton     652:     if test -z $no_dynamic_default; then
                    653:        no_dynamic_default=1
                    654:        AC_MSG_WARN(Disabling default dynamic native code generation)
                    655:     fi
1.92      anton     656:     AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
                    657: else
                    658:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
                    659: fi
1.91      anton     660: 
1.174     anton     661: AC_MSG_CHECKING([if and how we can do comments in asm statements])
                    662: #the point here is to get asm statements that look different to
                    663: #gcc's "optimizer"
                    664: if test -z "$asmcomment"; then
                    665:     asmcomment=no
                    666:     CFLAGS_1="$CFLAGS"
                    667:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.176     anton     668:     for i in '"# "' '"! "' '"; "'; do
1.174     anton     669:        AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
                    670:     done
                    671:     CFLAGS=$CFLAGS_1
                    672: fi
                    673: AC_MSG_RESULT($asmcomment)
                    674: if test "$asmcomment" != no
                    675: then 
                    676:     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
                    677: fi
                    678: 
1.136     anton     679: test "$no_dynamic_default" || no_dynamic_default=0
1.92      anton     680: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91      anton     681: 
1.1       anton     682: dnl Checks for programs.
                    683: AC_PROG_LN_S
1.95      anton     684: AC_PROG_INSTALL
1.163     pazsan    685: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
1.1       anton     686: 
                    687: dnl Checks for library functions
1.2       anton     688: dnl This check is just for making later checks link with libm.
                    689: dnl using sin here is no good idea since it is built-into gcc and typechecked
                    690: AC_CHECK_LIB(m,asin)
1.31      anton     691: AC_CHECK_LIB(dl,dlopen)
1.152     pazsan    692: dnl check for libffi 2.x
                    693: AC_CHECK_LIB(ffi,ffi_call)
                    694: if test $ac_cv_lib_ffi_ffi_call = yes
                    695: then
                    696: LIBFFIFLAG="true"
                    697: FFCALLFLAG="false"
                    698: OLDCALLFLAG="false"
                    699: AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
                    700: else
1.124     pazsan    701: dnl check for ffcall libraries
                    702: dnl unfortunately, these four calls are separated out into a library each.
                    703: AC_CHECK_LIB(avcall,__builtin_avcall)
                    704: AC_CHECK_LIB(callback,__vacall_r)
                    705: AC_CHECK_LIB(vacall,vacall)
                    706: AC_CHECK_LIB(trampoline,alloc_trampoline)
1.152     pazsan    707: LIBFFIFLAG="false"
1.125     anton     708: FFCALLFLAG="false"
1.129     pazsan    709: OLDCALLFLAG="true"
                    710: 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])
                    711: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
1.152     pazsan    712: fi
                    713: AC_SUBST(LIBFFIFLAG)
1.125     anton     714: AC_SUBST(FFCALLFLAG)
1.129     pazsan    715: AC_SUBST(OLDCALLFLAG)
1.32      pazsan    716: if test "$host_os" != "nextstep3"
                    717: then
                    718:        AC_FUNC_MEMCMP
                    719: fi
1.25      pazsan    720: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97      anton     721: AC_FUNC_FSEEKO
                    722: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
1.111     anton     723: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19      anton     724: AC_DECL_SYS_SIGLIST
1.138     anton     725: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90      anton     726: AC_CHECK_FUNCS(expm1 log1p)
                    727: AC_REPLACE_FUNCS(rint ecvt)
1.1       anton     728: dnl No check for select, because our replacement is no good under
                    729: dnl anything but DOS
1.62      anton     730: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63      anton     731: AC_FUNC_FNMATCH
1.87      pazsan    732: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28      anton     733: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34      anton     734: AM_PATH_LISPDIR
1.1       anton     735: 
1.23      pazsan    736: kernel_fi=kernl${wordsize}${bytesex}.fi
1.178   ! pazsan    737: include_fi=kernl${wordsize}${bytesex}${EC}.fi
1.23      pazsan    738: AC_SUBST(kernel_fi)
1.178   ! pazsan    739: AC_SUBST(include_fi)
1.50      jwilke    740: 
1.76      anton     741: #this breaks bindists
                    742: #dnl replace srource directory by absolute value
                    743: #if test $srcdir = "."; then srcdir=`pwd` 
                    744: #fi
1.8       anton     745: 
1.34      anton     746: AC_SUBST(machine)
1.95      anton     747: AC_CONFIG_FILES([
1.31      anton     748: Makefile
1.45      pazsan    749: Makedist
1.43      anton     750: gforthmi
1.80      anton     751: vmgen
1.79      pazsan    752: machpc.fs
1.159     pazsan    753: envos.fs
1.35      anton     754: engine/Makefile
1.161     pazsan    755: doc/version.texi
                    756: build-ec ])
1.95      anton     757: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43      anton     758: chmod +x gforthmi
1.80      anton     759: chmod +x vmgen
1.162     pazsan    760: chmod +x build-ec
1.95      anton     761: test -d kernel||mkdir kernel]],[[]])
                    762: AC_OUTPUT
1.44      anton     763: 

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>