Annotation of gforth/configure.in, revision 1.206
1.1 anton 1: dnl Process this file with autoconf to produce a configure script.
1.20 anton 2:
1.200 anton 3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007 Free Software Foundation, Inc.
1.20 anton 4:
5: #This file is part of Gforth.
6:
7: #Gforth is free software; you can redistribute it and/or
8: #modify it under the terms of the GNU General Public License
1.201 anton 9: #as published by the Free Software Foundation, either version 3
1.20 anton 10: #of the License, or (at your option) any later version.
11:
12: #This program is distributed in the hope that it will be useful,
13: #but WITHOUT ANY WARRANTY; without even the implied warranty of
14: #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the
15: #GNU General Public License for more details.
16:
17: #You should have received a copy of the GNU General Public License
1.201 anton 18: #along with this program. If not, see http://www.gnu.org/licenses/.
1.20 anton 19:
1.121 anton 20:
1.34 anton 21: dnl We use some automake macros here,
22: dnl but don't use automake for creating Makefile.in
1.188 anton 23: AC_INIT([gforth],[0.6.9-20070604],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
1.113 anton 24: AC_PREREQ(2.54)
1.47 anton 25: #snapshots have numbers major.minor.release-YYYYMMDD
1.92 anton 26: #note that lexicographic ordering must be heeded.
1.47 anton 27: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
1.187 anton 28: UPDATED="June 02, 2007"
1.84 anton 29: AC_SUBST(UPDATED)
1.94 anton 30: AC_CONFIG_HEADERS(engine/config.h)
1.14 anton 31:
1.121 anton 32: #suppress the "-g -O2" default
33: test "$CFLAGS" || CFLAGS=-O2
34:
1.1 anton 35: AC_ARG_ENABLE(force-reg,
1.149 anton 36: AC_HELP_STRING([--enable-force-reg],
37: [ Use explicit register declarations if they appear in
1.1 anton 38: the machine.h file. This can cause a good speedup,
39: but also incorrect code with some gcc versions on
1.149 anton 40: some processors (default disabled).]),
41: ,enable_force_reg=no)
42: test "$enable_force_reg" = "no"||
43: 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)])
44:
1.150 pazsan 45: AC_ARG_ENABLE(force-cdiv,
46: AC_HELP_STRING([--enable-force-cdiv],
47: [ Use the native C division - symmetric - instead of
48: floored division (default disabled).]),
49: ,enable_force_cdiv=no)
50: test "$enable_force_cdiv" = "no"||
51: AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance])
52:
1.149 anton 53: AC_SUBST(PROFEXES)
54: AC_SUBST(PROFOBJS)
1.135 anton 55: AC_ARG_ENABLE(prof,
1.149 anton 56: AC_HELP_STRING([--enable-prof],
57: [ Build gforth-prof, which outputs frequently occuring
58: sequences of primitives.]),
59: ,enable_prof=no)
1.204 anton 60: if test "$enable_prof" != "no"; then
61: PROFEXES='gforth-prof$(OPT)$(EXE)'; PROFOBJS='engine-prof$(OPT).o main-prof$(OPT).o profile$(OPT).o'
1.149 anton 62: fi
1.1 anton 63:
1.9 pazsan 64: AC_ARG_WITH(debug,
1.122 pazsan 65: [ --with-debug specifies option -g to compile with debug info
66: --without-debug omits the -g switch and creates smaller images on
67: machines where "strip" has problems with gcc style
68: debugging informations.],
1.9 pazsan 69: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
1.122 pazsan 70:
1.185 pazsan 71: GCC_LD="\$(GCC)"
72: EC_MODE="false"
73: EC=""
1.204 anton 74: engine2='engine2$(OPT).o'
75: engine_fast2='engine-fast2$(OPT).o'
1.185 pazsan 76: no_dynamic=""
77: image_i=""
78: signals_o="io.o signals.o"
79:
1.182 pazsan 80: AC_ARG_WITH(ec,
81: AC_HELP_STRING([--with-ec=<arch>],
1.168 pazsan 82: [ Build gforth for systems without OS.]),
1.182 pazsan 83: [if test "$withval" = "no"; then
84: echo "defining hosted system"
85: else
86: echo "defining standalone system (${withval})"
1.168 pazsan 87: AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
1.167 pazsan 88: EC_MODE="true"
1.178 pazsan 89: EC="-ec"
90: engine2=""
91: engine_fast2=""
92: no_dynamic="-DNO_DYNAMIC"
93: image_i="image.i"
1.182 pazsan 94: if test "$withval" != "yes"; then
95: signals_o="io-${withval}.o"
96: else
97: signals_o="io.o"
98: fi
1.183 pazsan 99: GCC_PATH=$(which $CC)
100: LIB_PATH=${GCC_PATH%/*/*}
101: GCC_LD="\$(LD)"
1.184 pazsan 102: platform=${withval}
1.182 pazsan 103: fi])
1.167 pazsan 104:
1.104 anton 105: #variables mentioned in INSTALL
1.203 anton 106: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
1.104 anton 107: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
1.203 anton 108: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
1.151 anton 109: 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 110: 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)])
111:
1.104 anton 112: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
1.183 pazsan 113: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
1.104 anton 114: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
115: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
116: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
117: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
118: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
119: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
1.123 anton 120: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
121: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
1.190 anton 122: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
1.166 anton 123: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
1.174 anton 124: AC_ARG_VAR(asmcomment, [assembler comment start string])
1.175 anton 125: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
1.82 anton 126:
1.96 anton 127: #set up feature test macros, so the tests get them right:
128: # turn on all POSIX, SUSv3, and GNU features if available
1.97 anton 129: AC_GNU_SOURCE
130: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
131:
132: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
133: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
134: dnl but not for _XOPEN_SOURCE)
135: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
136: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
137: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96 anton 138: # turn on large file support with 64-bit off_t where available
1.105 anton 139: AC_SYS_LARGEFILE
140: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
141: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96 anton 142:
1.82 anton 143: #currently we force direct threading this way. Eventually we should
144: #setup in the arch and engine files right
1.16 anton 145:
1.15 pazsan 146: AC_PROG_CC
147:
1.92 anton 148: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9 pazsan 149:
1.190 anton 150: AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
151: test x$condbranch_opt = x &&
152: if ($CC -v 2>&1 |grep -q 'gcc version 3'); then
153: condbranch_opt=0
154: else
155: condbranch_opt=1
156: fi
157: AC_MSG_RESULT($condbranch_opt)
158: AC_SUBST(condbranch_opt)
159:
1.15 pazsan 160: AC_SUBST(CC)
1.183 pazsan 161: AC_SUBST(GCC_LD)
1.9 pazsan 162: AC_SUBST(DEBUGFLAG)
1.178 pazsan 163: AC_SUBST(EC)
1.167 pazsan 164: AC_SUBST(EC_MODE)
1.178 pazsan 165: AC_SUBST(engine2)
166: AC_SUBST(engine_fast2)
167: AC_SUBST(no_dynamic)
168: AC_SUBST(image_i)
1.179 pazsan 169: AC_SUBST(signals_o)
1.7 anton 170:
1.174 anton 171: #this is used to disable some (not generally essential) part of the
172: #Makefile that some makes don't grok. It would be better to test for
173: #this specific Makefile feature than the make version.
1.128 pazsan 174: AC_MSG_CHECKING(make type)
1.174 anton 175: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
1.128 pazsan 176: GNUMAKE='#'
177: test "$make_type" = "GNU Make" && GNUMAKE=''
178: AC_MSG_RESULT($make_type)
179: AC_SUBST(GNUMAKE)
180:
1.50 jwilke 181: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
182: OLDLDFLAGS=$LDFLAGS
183: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 184: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
185: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
186: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 187: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
188: AC_MSG_RESULT($ac_export_dynamic)
189:
1.1 anton 190: #terminology is a bit unusual here: The host is the system on which
191: #gforth will run; the system on which configure will run is the `build'
192: AC_CANONICAL_HOST
193: case "$host_cpu" in
1.136 anton 194: arm*)
195: machine=arm
196: CFLAGS="$CFLAGS -fomit-frame-pointer"
1.184 pazsan 197: if test x$platform = xnxt; then
1.183 pazsan 198: CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
199: fi
1.175 anton 200: if test -z $arm_cacheflush; then
1.136 anton 201: no_dynamic_default=1
1.175 anton 202: arm_cacheflush=arch/arm/cacheflush0
1.136 anton 203: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
204: fi
1.175 anton 205: AC_LIBSOURCES([../arch/arm/cacheflush0, ../arch/arm/cacheflush1, ../arch/arm/cacheflush2])
206: AC_LIBOBJ(../$arm_cacheflush)
1.177 anton 207: #longer skipcodes lead to problems on ARM, and it uses
208: #only 4-byte alignment anyway
209: test "$skipcode" || skipcode="nop"
1.136 anton 210: ;;
1.1 anton 211: hppa*)
1.34 anton 212: machine=hppa
1.46 anton 213: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 214: AC_LIBOBJ(../arch/hppa/cache)
1.134 anton 215: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
216: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 217: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 218: ;;
219: sparc*)
1.34 anton 220: machine=sparc
1.1 anton 221: ;;
1.31 anton 222: i386)
1.34 anton 223: machine=386
1.189 anton 224: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
1.31 anton 225: ;;
226: i486)
1.34 anton 227: machine=386
1.189 anton 228: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -m486"
1.31 anton 229: ;;
1.77 anton 230: i*86)
1.34 anton 231: machine=386
1.189 anton 232: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
1.56 pazsan 233: CFLAGS_1="$CFLAGS"
1.87 pazsan 234: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 235: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 236: ;;
1.133 anton 237: x86_64)
1.192 pazsan 238: case $CC
239: in
240: *-m32*)
241: machine=386
242: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
243: CFLAGS_1="$CFLAGS"
244: CFLAGS="$CFLAGS -march=athlon64"
245: ;;
246: *)
247: machine=amd64
248: ;;
249: esac
1.133 anton 250: ;;
1.136 anton 251: ia64*)
252: machine=ia64
253: AC_LIBOBJ(../arch/ia64/flush_icache_block)
254: test "$skipcode" || skipcode="nop.i 0"
255: #".skip 16" passes the test below,
256: # but gives an assembler error in engine
257: ;;
1.26 pazsan 258: m68k)
1.34 anton 259: machine=m68k
1.32 pazsan 260: CFLAGS="$CFLAGS -fomit-frame-pointer"
261: if test "$host_os" = "nextstep3"
262: then
1.87 pazsan 263: AC_LIBOBJ(termios)
1.32 pazsan 264: fi
1.26 pazsan 265: ;;
1.1 anton 266: mips*)
1.34 anton 267: machine=mips
1.92 anton 268: #dynamic native code has the following problems on MIPS:
269: #
270: #1) J/JAL seems relocatable, but is are only
271: #relocatable within a 256MB-segment. While we try to
272: #get the linker to arrange this, there is no guarantee
273: #that this will succeed (and if the user uses a lot of
274: #memory, it is likely to fail).
275: #
276: #2) The way we generate dynamic native code may
277: #violate MIPS architectural restrictions (in
278: #particular, the delay slots of LW, MFLO, etc.)
279: #
280: #Therefore we disable dynamic native code by default:
1.136 anton 281: if test -z $no_dynamic_default; then
282: no_dynamic_default=1
283: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
284: fi
1.1 anton 285: ;;
1.9 pazsan 286: alpha*)
1.34 anton 287: machine=alpha
1.58 anton 288: #full IEEE FP support for more uniformity across platforms:
289: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 290: ;;
1.69 anton 291: power*|rs6000)
1.34 anton 292: machine=power
1.46 anton 293: $srcdir/mkinstalldirs arch/power
1.138 anton 294: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103 anton 295: #long long is broken on (at least) gcc-2.95.* for PPC
1.165 anton 296: test x$ac_cv_sizeof_long_long = x &&
297: ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
298: ac_cv_sizeof_long_long=0
1.203 anton 299: #The only architecture with enough callee-saved registers
300: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
301: #or use 2, hardly slower at run-time and starts up faster
1.31 anton 302: ;;
1.1 anton 303: *)
1.92 anton 304: AC_MSG_WARN([Using a generic machine description])
305: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
306: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 307: machine=generic
1.97 anton 308: #I-cache flushing would be needed for dynamic code generation
1.136 anton 309: if test -z $no_dynamic_default; then
310: no_dynamic_default=1
311: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
312: fi
1.1 anton 313: esac
1.10 anton 314: AC_SUBST(host)
1.151 anton 315:
1.184 pazsan 316: MAKEINC=""
317:
318: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
1.183 pazsan 319: if test x$EC_MODE = xtrue
320: then
1.184 pazsan 321: echo "Check for arch/$machine/$platform/gforth.ld"
322: if test -f arch/$machine/$platform/gforth.ld
1.183 pazsan 323: then
1.184 pazsan 324: LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
325: if test x$platform = xnxt; then
1.183 pazsan 326: LIBS="$LIB_PATH/lib/gcc/arm-elf/$($CC --version | grep GCC | cut -d' ' -f3)/interwork/libgcc.a $LIB_PATH/arm-elf/lib/interwork/libc.a $LIBS"
327: fi
328: fi
1.184 pazsan 329: if test -f arch/$machine/$platform/make.inc
330: then
331: MAKEINC="include ../arch/$machine/$platform/make.inc"
332: fi
1.183 pazsan 333: fi
1.184 pazsan 334: AC_SUBST(MAKEINC)
1.183 pazsan 335:
1.203 anton 336: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
337:
338: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
339: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
340: [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
1.151 anton 341: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
342: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
343: [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146 pazsan 344:
1.173 anton 345: test x$GCC_PR15242_WORKAROUND = x ||
346: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
347: [force (1) or forbid (0) use of a workaround for a gcc performance bug])
348:
1.103 anton 349: dnl the following macro produces a warning with autoconf-2.1
350: AC_CHECK_SIZEOF(char *)
351: case "$ac_cv_sizeof_char_p" in
352: 2)
353: wordsize=16
354: ;;
355: 4)
356: wordsize=32
357: ;;
358: 8)
359: wordsize=64
360: ;;
361: esac
362:
1.183 pazsan 363: AC_CHECK_SIZEOF(void *)
364: case "$ac_cv_sizeof_void_p" in
365: 2)
366: vwordsize=16
367: ;;
368: 4)
369: vwordsize=32
370: ;;
371: 8)
372: vwordsize=64
373: ;;
374: esac
375:
1.103 anton 376: AC_CHECK_SIZEOF(char)
377: AC_CHECK_SIZEOF(short)
378: AC_CHECK_SIZEOF(int)
379: AC_CHECK_SIZEOF(long)
380: AC_CHECK_SIZEOF(long long)
381: AC_CHECK_SIZEOF(intptr_t)
382: AC_CHECK_SIZEOF(int128_t)
1.144 pazsan 383: AC_CHECK_SIZEOF(uint128_t)
1.103 anton 384:
385: AC_MSG_CHECKING([for a C type for cells])
386: ac_cv_int_type_cell=none
387: case "$ac_cv_sizeof_char_p" in
388: $ac_cv_sizeof_int)
389: ac_cv_int_type_cell=int
390: ;;
391: $ac_cv_sizeof_short)
392: ac_cv_int_type_cell=short
393: ;;
394: $ac_cv_sizeof_char)
395: ac_cv_int_type_cell=char
396: ;;
397: $ac_cv_sizeof_long)
398: ac_cv_int_type_cell=long
399: ;;
400: $ac_cv_sizeof_long_long)
401: ac_cv_int_type_cell="long long"
402: ;;
403: $ac_cv_sizeof_intptr_t)
404: ac_cv_int_type_cell="intptr_t"
405: ;;
406: esac
407: AC_MSG_RESULT($ac_cv_int_type_cell)
408: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
409:
1.153 pazsan 410: AC_MSG_CHECKING([for a C type for wydes])
411: ac_cv_wyde_type_cell=none
412: case 2 in
413: $ac_cv_sizeof_int)
414: ac_cv_wyde_type_cell=int
415: ;;
416: $ac_cv_sizeof_short)
417: ac_cv_wyde_type_cell=short
418: ;;
419: $ac_cv_sizeof_char)
420: ac_cv_wyde_type_cell=char
421: ;;
422: $ac_cv_sizeof_long)
423: ac_cv_wyde_type_cell=long
424: ;;
425: $ac_cv_sizeof_long_long)
426: ac_cv_wyde_type_cell="long long"
427: ;;
428: $ac_cv_sizeof_intptr_t)
429: ac_cv_wyde_type_cell="intptr_t"
430: ;;
431: esac
432: AC_MSG_RESULT($ac_cv_wyde_type_cell)
433: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
434:
435: AC_MSG_CHECKING([for a C type for tetrabytes])
436: ac_cv_tetrabyte_type_cell=none
437: case 4 in
438: $ac_cv_sizeof_int)
439: ac_cv_tetrabyte_type_cell=int
440: ;;
441: $ac_cv_sizeof_short)
442: ac_cv_tetrabyte_type_cell=short
443: ;;
444: $ac_cv_sizeof_char)
445: ac_cv_tetrabyte_type_cell=char
446: ;;
447: $ac_cv_sizeof_long)
448: ac_cv_tetrabyte_type_cell=long
449: ;;
450: $ac_cv_sizeof_long_long)
451: ac_cv_tetrabyte_type_cell="long long"
452: ;;
453: $ac_cv_sizeof_intptr_t)
454: ac_cv_tetrabyte_type_cell="intptr_t"
455: ;;
456: esac
457: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
458: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
459:
1.103 anton 460: AC_MSG_CHECKING([for a C type for double-cells])
461: ac_cv_int_type_double_cell=none
462: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
463: $ac_cv_sizeof_short)
464: ac_cv_int_type_double_cell=short
465: ;;
466: $ac_cv_sizeof_int)
467: ac_cv_int_type_double_cell=int
468: ;;
469: $ac_cv_sizeof_long)
470: ac_cv_int_type_double_cell=long
471: ;;
472: $ac_cv_sizeof_long_long)
473: ac_cv_int_type_double_cell="long long"
474: ;;
475: $ac_cv_sizeof_intptr_t)
476: ac_cv_int_type_double_cell="intptr_t"
477: ;;
1.205 anton 478: $ac_cv_sizeof_int128_t)
1.103 anton 479: ac_cv_int_type_double_cell="int128_t"
480: ;;
481: esac
482: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144 pazsan 483:
484: AC_MSG_CHECKING([for a C type for unsigned double-cells])
485: ac_cv_int_type_double_ucell=none
486: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
487: $ac_cv_sizeof_short)
488: ac_cv_int_type_double_ucell="unsigned short"
489: ;;
490: $ac_cv_sizeof_int)
491: ac_cv_int_type_double_ucell="unsigned int"
492: ;;
493: $ac_cv_sizeof_long)
494: ac_cv_int_type_double_ucell="unsigned long"
495: ;;
496: $ac_cv_sizeof_long_long)
497: ac_cv_int_type_double_ucell="unsigned long long"
498: ;;
499: $ac_cv_sizeof_intptr_t)
500: ac_cv_int_type_double_ucell="unsigned intptr_t"
501: ;;
502: $ac_cv_sizeof_uint128_t)
503: ac_cv_int_type_double_ucell="uint128_t"
504: ;;
505: esac
506: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
507:
1.204 anton 508: if test "$ac_cv_int_type_double_cell" != none && \
509: test "$ac_cv_int_type_double_ucell" != none
1.144 pazsan 510: then
1.103 anton 511: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144 pazsan 512: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.206 ! anton 513: OPTS=-ll
! 514: else
! 515: if test "$ac_cv_sizeof_char_p" == 8; then
! 516: OPTS="-ll -no-ll"
! 517: else
! 518: OPTS=-noll
! 519: fi
1.103 anton 520: fi
1.206 ! anton 521: AC_SUBST(OPTS)
1.103 anton 522:
523: AC_TYPE_OFF_T
524: AC_CHECK_SIZEOF(off_t)
525: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
526: ac_small_off_t=$?
527: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1 anton 528:
1.109 anton 529: ENGINE_FLAGS=
530: AC_SUBST(ENGINE_FLAGS)
531:
532: # Try if GCC understands -fno-gcse
533:
534: AC_MSG_CHECKING([if $CC understands -fno-gcse])
535: CFLAGS_1="$CFLAGS"
536: CFLAGS="$CFLAGS -fno-gcse"
537: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
538: CFLAGS="$CFLAGS_1"
539: AC_MSG_RESULT($ac_nogcse)
540:
541: # Try if GCC understands -fno-strict-aliasing
542: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
543: CFLAGS_1="$CFLAGS"
544: CFLAGS="$CFLAGS -fno-strict-aliasing"
545: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
546: CFLAGS="$CFLAGS_1"
547: AC_MSG_RESULT($ac_nostrictaliasing)
548:
1.123 anton 549: # Try if GCC understands -fno-crossjumping
550: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88 pazsan 551: CFLAGS_1="$CFLAGS"
1.123 anton 552: CFLAGS="$CFLAGS -fno-crossjumping"
1.125 anton 553: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109 anton 554: CFLAGS="$CFLAGS_1"
1.124 pazsan 555: AC_MSG_RESULT($ac_nocrossjumping)
1.88 pazsan 556:
1.137 pazsan 557: # Try if GCC understands -fno-reorder-blocks
558: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
559: CFLAGS_1="$CFLAGS"
560: CFLAGS="$CFLAGS -fno-reorder-blocks"
561: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
562: CFLAGS="$CFLAGS_1"
563: AC_MSG_RESULT($ac_noreorder_blocks)
564:
1.189 anton 565: # Try if GCC understands -falign-labels=1
566: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
567: CFLAGS_1="$CFLAGS"
568: CFLAGS="$CFLAGS -falign-labels=1"
1.194 anton 569: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
1.189 anton 570: CFLAGS="$CFLAGS_1"
571: AC_MSG_RESULT($ac_align_labels)
572:
1.193 anton 573: # Try if GCC understands -falign-loops=1
574: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
575: CFLAGS_1="$CFLAGS"
576: CFLAGS="$CFLAGS -falign-loops=1"
1.194 anton 577: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
1.193 anton 578: CFLAGS="$CFLAGS_1"
579: AC_MSG_RESULT($ac_align_loops)
580:
581: # Try if GCC understands -falign-jumps=1
582: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
583: CFLAGS_1="$CFLAGS"
584: CFLAGS="$CFLAGS -falign-jumps=1"
1.194 anton 585: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
1.193 anton 586: CFLAGS="$CFLAGS_1"
587: AC_MSG_RESULT($ac_align_jumps)
588:
1.130 anton 589: # Try if GCC understands __attribute__((unused))
590: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
591: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
592: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
593: AC_MSG_RESULT($MAYBE_UNUSED)
594:
1.195 anton 595: #try if m4 understands -s
596: AC_MSG_CHECKING([how to invoke m4])
1.196 anton 597: if m4 -s /dev/null >/dev/null 2>&1; then
1.195 anton 598: M4="m4 -s"
599: else
600: M4=m4
601: fi
602: AC_SUBST(M4)
603: AC_DEFINE_UNQUOTED(M4,"$M4",[How to invoke m4])
604: AC_MSG_RESULT($M4)
605:
1.202 pazsan 606: # Find installed Gforth
607: AC_MSG_CHECKING([for gforth])
608: GFORTH="`which gforth 2>/dev/null`"
609: if test ! -z "$GFORTH"; then GFORTH="$GFORTH -m4M" ; fi
610: AC_SUBST(GFORTH)
611: AC_DEFINE_UNQUOTED(GFORTH,"$GFORTH",[How to invoke gforth])
612: AC_MSG_RESULT($GFORTH)
613:
1.191 anton 614: echo "machine='$machine'"
615:
616: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
617: AC_CHECK_FILE($srcdir/arch/$machine/asm.fs,[asm_fs=arch/$machine/asm.fs],)
1.61 anton 618: AC_SUBST(asm_fs)
619:
1.191 anton 620: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
621: AC_CHECK_FILE($srcdir/arch/$machine/disasm.fs,[disasm_fs=arch/$machine/disasm.fs],)
1.61 anton 622: AC_SUBST(disasm_fs)
623:
1.116 anton 624: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114 anton 625:
1.39 pazsan 626: case "$host_os" in
1.157 pazsan 627: *win32*)
628: # !!!FIXME!!! problems with cygwin and ';' as path separator
1.108 anton 629: DIRSEP="\\\\"
1.127 anton 630: PATHSEP=";"
1.142 anton 631: #we want the builtins of command.com/cmd.exe and its
632: # handling of .com files.
633: #$COMSPEC contains the name of the Windows shell;
634: # the ./ is there, because the bash does not recognize
635: # absolute DOS filenames
636: DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39 pazsan 637: ;;
1.97 anton 638: *darwin*)
639: #Darwin uses some funny preprocessor by default; eliminate it:
1.127 anton 640: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120 anton 641: CFLAGS="$CFLAGS -no-cpp-precomp"
1.98 anton 642: DIRSEP="/"
1.127 anton 643: PATHSEP=":"
1.141 anton 644: DEFAULTSYSTEMPREFIX=""
1.98 anton 645: ;;
1.39 pazsan 646: *)
1.88 pazsan 647: DIRSEP="/"
1.127 anton 648: PATHSEP=":"
1.141 anton 649: DEFAULTSYSTEMPREFIX=""
1.39 pazsan 650: ;;
651: esac
1.88 pazsan 652: AC_SUBST(DIRSEP)
1.89 pazsan 653: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127 anton 654: AC_SUBST(PATHSEP)
655: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141 anton 656: AC_SUBST(DEFAULTSYSTEMPREFIX)
657: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.39 pazsan 658:
1.170 anton 659: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
1.172 anton 660: #This magic incantation seems to be completely undocumented.
661: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
1.170 anton 662:
1.1 anton 663: dnl Now a little support for DOS/DJGCC
1.30 pazsan 664: AC_SUBST(GFORTH_EXE)
1.172 anton 665: GFORTH_EXE=""
1.48 anton 666: AC_SUBST(GFORTHFAST_EXE)
1.172 anton 667: GFORTHFAST_EXE=""
1.83 anton 668: AC_SUBST(GFORTHITC_EXE)
669: GFORTHITC_EXE=""
1.30 pazsan 670: AC_SUBST(GFORTHDITC_EXE)
671: GFORTHDITC_EXE=""
1.27 anton 672:
673: AC_SUBST(FORTHSIZES)
1.24 anton 674:
1.104 anton 675: dnl if test "$PEEPHOLE" = "yes"
676: dnl then
677: dnl PEEPHOLEFLAG="true"
678: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
679: dnl else
680: dnl PEEPHOLEFLAG="false"
681: dnl fi
682: PEEPHOLEFLAG="true"
1.79 pazsan 683: AC_SUBST(PEEPHOLEFLAG)
684:
1.1 anton 685: dnl copy commands for systems that don't have links
1.29 pazsan 686: AC_SUBST(LINK_KERNL)
687: LINK_KERNL=""
1.1 anton 688:
689: #if test $host_os=dos
690: #then
691: # echo Configuring for DOS!!!
692: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 693: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 694: #fi
695:
696: dnl the following macro produces a warning with autoconf-2.1
697: AC_C_BIGENDIAN
1.23 pazsan 698: AC_SUBST(KERNEL)
1.1 anton 699: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
700: if test $ac_cv_c_bigendian = yes; then
701: bytesex=b
1.23 pazsan 702: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 703: else
704: bytesex=l
1.23 pazsan 705: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 706: fi
707:
1.91 anton 708: #check how to do asm(".skip 16")
1.169 anton 709: #echo "CFLAGS=$CFLAGS"
710: #echo "ac_link=$ac_link"
1.92 anton 711: AC_MSG_CHECKING([if and how we can waste code space])
1.136 anton 712: if test -z "$skipcode"; then
1.148 anton 713: skipcode=no
714: CFLAGS_1="$CFLAGS"
715: CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136 anton 716: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
717: do
1.91 anton 718: AC_TRY_RUN(
1.136 anton 719: [int foo(int,int,int);
1.91 anton 720: main()
721: {
1.136 anton 722: exit(foo(0,0,0)!=16);
1.91 anton 723: }
1.136 anton 724: int foo(int x, int y, int z)
1.91 anton 725: {
1.136 anton 726: static void *labels[]={&&label1, &&label2};
1.91 anton 727: if (x) {
1.136 anton 728: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91 anton 729: label1:
1.148 anton 730: asm("$i"); /* or ".space 16" or somesuch */
1.136 anton 731: label2: ;
732: }
733: {
734: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
735: return labels[1]-labels[0];
1.91 anton 736: }
1.136 anton 737: }]
1.92 anton 738: ,skipcode=$i; break
739: ,,)
1.136 anton 740: done
1.148 anton 741: CFLAGS=$CFLAGS_1
1.136 anton 742: fi
1.92 anton 743: AC_MSG_RESULT($skipcode)
744: if test "$skipcode" = no
745: then
1.136 anton 746: if test -z $no_dynamic_default; then
747: no_dynamic_default=1
748: AC_MSG_WARN(Disabling default dynamic native code generation)
749: fi
1.92 anton 750: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
751: else
752: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
753: fi
1.91 anton 754:
1.174 anton 755: AC_MSG_CHECKING([if and how we can do comments in asm statements])
756: #the point here is to get asm statements that look different to
757: #gcc's "optimizer"
758: if test -z "$asmcomment"; then
759: asmcomment=no
760: CFLAGS_1="$CFLAGS"
761: CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.176 anton 762: for i in '"# "' '"! "' '"; "'; do
1.174 anton 763: AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
764: done
765: CFLAGS=$CFLAGS_1
766: fi
767: AC_MSG_RESULT($asmcomment)
768: if test "$asmcomment" != no
769: then
770: AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
771: fi
772:
1.136 anton 773: test "$no_dynamic_default" || no_dynamic_default=0
1.92 anton 774: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 775:
1.1 anton 776: dnl Checks for programs.
777: AC_PROG_LN_S
1.95 anton 778: AC_PROG_INSTALL
1.163 pazsan 779: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
1.1 anton 780:
1.198 anton 781: dnl MacOS X has a libtool that does something else
782: AC_CHECK_PROGS(GNU_LIBTOOL,glibtool libtool)
783:
1.1 anton 784: dnl Checks for library functions
1.2 anton 785: dnl This check is just for making later checks link with libm.
786: dnl using sin here is no good idea since it is built-into gcc and typechecked
787: AC_CHECK_LIB(m,asin)
1.197 anton 788: AC_CHECK_LIB(ltdl,lt_dlinit)
1.31 anton 789: AC_CHECK_LIB(dl,dlopen)
1.152 pazsan 790: dnl check for libffi 2.x
791: AC_CHECK_LIB(ffi,ffi_call)
792: if test $ac_cv_lib_ffi_ffi_call = yes
793: then
794: LIBFFIFLAG="true"
795: FFCALLFLAG="false"
796: OLDCALLFLAG="false"
797: AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
798: else
1.124 pazsan 799: dnl check for ffcall libraries
800: dnl unfortunately, these four calls are separated out into a library each.
801: AC_CHECK_LIB(avcall,__builtin_avcall)
802: AC_CHECK_LIB(callback,__vacall_r)
803: AC_CHECK_LIB(vacall,vacall)
804: AC_CHECK_LIB(trampoline,alloc_trampoline)
1.152 pazsan 805: LIBFFIFLAG="false"
1.125 anton 806: FFCALLFLAG="false"
1.129 pazsan 807: OLDCALLFLAG="true"
808: 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])
809: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
1.152 pazsan 810: fi
811: AC_SUBST(LIBFFIFLAG)
1.125 anton 812: AC_SUBST(FFCALLFLAG)
1.129 pazsan 813: AC_SUBST(OLDCALLFLAG)
1.32 pazsan 814: if test "$host_os" != "nextstep3"
815: then
816: AC_FUNC_MEMCMP
817: fi
1.25 pazsan 818: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97 anton 819: AC_FUNC_FSEEKO
1.186 anton 820: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
1.111 anton 821: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19 anton 822: AC_DECL_SYS_SIGLIST
1.138 anton 823: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90 anton 824: AC_CHECK_FUNCS(expm1 log1p)
825: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 826: dnl No check for select, because our replacement is no good under
827: dnl anything but DOS
1.62 anton 828: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 829: AC_FUNC_FNMATCH
1.87 pazsan 830: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 831: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 832: AM_PATH_LISPDIR
1.1 anton 833:
1.183 pazsan 834: kernel_fi=kernl${vwordsize}${bytesex}.fi
1.178 pazsan 835: include_fi=kernl${wordsize}${bytesex}${EC}.fi
1.23 pazsan 836: AC_SUBST(kernel_fi)
1.178 pazsan 837: AC_SUBST(include_fi)
1.50 jwilke 838:
1.76 anton 839: #this breaks bindists
840: #dnl replace srource directory by absolute value
841: #if test $srcdir = "."; then srcdir=`pwd`
842: #fi
1.8 anton 843:
1.34 anton 844: AC_SUBST(machine)
1.95 anton 845: AC_CONFIG_FILES([
1.31 anton 846: Makefile
1.45 pazsan 847: Makedist
1.43 anton 848: gforthmi
1.80 anton 849: vmgen
1.79 pazsan 850: machpc.fs
1.159 pazsan 851: envos.fs
1.35 anton 852: engine/Makefile
1.188 anton 853: engine/libcc.h
1.161 pazsan 854: doc/version.texi
855: build-ec ])
1.95 anton 856: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43 anton 857: chmod +x gforthmi
1.80 anton 858: chmod +x vmgen
1.162 pazsan 859: chmod +x build-ec
1.188 anton 860: test -d kernel||mkdir kernel
861: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
1.199 anton 862: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],[[PACKAGE_VERSION=$PACKAGE_VERSION]])
1.95 anton 863: AC_OUTPUT
1.44 anton 864:
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