Annotation of gforth/configure.in, revision 1.165
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 "$enable_force_ll" = "no"||
54: AC_DEFINE(FORCE_LL,,[Define if you want to use explicit long long declarations for better performance (does not work with all GCC versions on all machines)])
1.147 anton 55:
56: AC_ARG_ENABLE(gcc-pr15242-workaround,
57: AC_HELP_STRING([--disable-gcc-pr15242-workaround],[Disables
58: dynamic code generation on some versions of gcc
59: (slowdown~2 on Athlon) and causes slower building
60: of gforth (but gforth speedups) on others.
61: (default enabled)]),
62: ,enable_gcc_pr15242_workaround=yes)
63: test "$enable_gcc_pr15242_workaround" = "no"||
64: AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
65: generation on gccs affected by PR15242])
66:
1.150 pazsan 67: AC_ARG_ENABLE(force-cdiv,
68: AC_HELP_STRING([--enable-force-cdiv],
69: [ Use the native C division - symmetric - instead of
70: floored division (default disabled).]),
71: ,enable_force_cdiv=no)
72: test "$enable_force_cdiv" = "no"||
73: AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance])
74:
1.149 anton 75: AC_SUBST(PROFEXES)
76: AC_SUBST(PROFOBJS)
1.135 anton 77: AC_ARG_ENABLE(prof,
1.149 anton 78: AC_HELP_STRING([--enable-prof],
79: [ Build gforth-prof, which outputs frequently occuring
80: sequences of primitives.]),
81: ,enable_prof=no)
82: if test "$enable_prof" = "no"; then
83: PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o"
84: fi
1.1 anton 85:
1.9 pazsan 86: AC_ARG_WITH(debug,
1.122 pazsan 87: [ --with-debug specifies option -g to compile with debug info
88: --without-debug omits the -g switch and creates smaller images on
89: machines where "strip" has problems with gcc style
90: debugging informations.],
1.9 pazsan 91: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
1.122 pazsan 92:
1.104 anton 93: dnl PEEPHOLE="yes"
94: dnl AC_ARG_WITH(peephole,
95: dnl [ --with-peephole Enable peephole optimization (default)
96: dnl --without-peephole disables peephole optimization. Creates smaller,
97: dnl but slower images.],
98: dnl PEEPHOLE="$withval")
99:
100: #variables mentioned in INSTALL
1.123 anton 101: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
1.104 anton 102: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
1.151 anton 103: AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).])
1.104 anton 104: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
105: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
106: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
107: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
108: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
109: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
110: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
111: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
1.144 pazsan 112: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
1.123 anton 113: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
114: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
1.136 anton 115: AC_ARG_VAR(skip_code, [assembly code for skipping 16 bytes of code])
1.82 anton 116:
1.96 anton 117: #set up feature test macros, so the tests get them right:
118: # turn on all POSIX, SUSv3, and GNU features if available
1.97 anton 119: AC_GNU_SOURCE
120: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
121:
122: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
123: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
124: dnl but not for _XOPEN_SOURCE)
125: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
126: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
127: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96 anton 128: # turn on large file support with 64-bit off_t where available
1.105 anton 129: AC_SYS_LARGEFILE
130: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
131: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96 anton 132:
1.82 anton 133: #currently we force direct threading this way. Eventually we should
134: #setup in the arch and engine files right
1.16 anton 135:
1.15 pazsan 136: AC_PROG_CC
137:
1.92 anton 138: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9 pazsan 139:
1.15 pazsan 140: AC_SUBST(CC)
1.9 pazsan 141: AC_SUBST(DEBUGFLAG)
1.7 anton 142:
1.128 pazsan 143: AC_MSG_CHECKING(make type)
1.155 pazsan 144: make_type=`make -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
1.128 pazsan 145:
146: GNUMAKE='#'
147: test "$make_type" = "GNU Make" && GNUMAKE=''
148:
149: AC_MSG_RESULT($make_type)
150:
151: AC_SUBST(GNUMAKE)
152:
1.50 jwilke 153: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
154: OLDLDFLAGS=$LDFLAGS
155: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 156: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
157: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
158: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 159: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
160: AC_MSG_RESULT($ac_export_dynamic)
161:
1.1 anton 162: #terminology is a bit unusual here: The host is the system on which
163: #gforth will run; the system on which configure will run is the `build'
164: AC_CANONICAL_HOST
165: case "$host_cpu" in
1.136 anton 166: arm*)
167: machine=arm
168: CFLAGS="$CFLAGS -fomit-frame-pointer"
169: if test -z $no_dynamic_default; then
170: no_dynamic_default=1
171: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
172: fi
173: ;;
1.1 anton 174: hppa*)
1.34 anton 175: machine=hppa
1.46 anton 176: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 177: AC_LIBOBJ(../arch/hppa/cache)
1.134 anton 178: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
179: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 180: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 181: ;;
182: sparc*)
1.34 anton 183: machine=sparc
1.1 anton 184: ;;
1.31 anton 185: i386)
1.34 anton 186: machine=386
1.16 anton 187: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 188: ;;
189: i486)
1.34 anton 190: machine=386
1.31 anton 191: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
192: ;;
1.77 anton 193: i*86)
1.34 anton 194: machine=386
1.55 anton 195: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 196: CFLAGS_1="$CFLAGS"
1.87 pazsan 197: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 198: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 199: ;;
1.133 anton 200: x86_64)
201: machine=amd64
202: ;;
1.136 anton 203: ia64*)
204: machine=ia64
205: AC_LIBOBJ(../arch/ia64/flush_icache_block)
206: test "$skipcode" || skipcode="nop.i 0"
207: #".skip 16" passes the test below,
208: # but gives an assembler error in engine
209: ;;
1.26 pazsan 210: m68k)
1.34 anton 211: machine=m68k
1.32 pazsan 212: CFLAGS="$CFLAGS -fomit-frame-pointer"
213: if test "$host_os" = "nextstep3"
214: then
1.87 pazsan 215: AC_LIBOBJ(termios)
1.32 pazsan 216: fi
1.26 pazsan 217: ;;
1.1 anton 218: mips*)
1.34 anton 219: machine=mips
1.92 anton 220: #dynamic native code has the following problems on MIPS:
221: #
222: #1) J/JAL seems relocatable, but is are only
223: #relocatable within a 256MB-segment. While we try to
224: #get the linker to arrange this, there is no guarantee
225: #that this will succeed (and if the user uses a lot of
226: #memory, it is likely to fail).
227: #
228: #2) The way we generate dynamic native code may
229: #violate MIPS architectural restrictions (in
230: #particular, the delay slots of LW, MFLO, etc.)
231: #
232: #Therefore we disable dynamic native code by default:
1.136 anton 233: if test -z $no_dynamic_default; then
234: no_dynamic_default=1
235: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
236: fi
1.1 anton 237: ;;
1.9 pazsan 238: alpha*)
1.34 anton 239: machine=alpha
1.58 anton 240: #full IEEE FP support for more uniformity across platforms:
241: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 242: ;;
1.69 anton 243: power*|rs6000)
1.34 anton 244: machine=power
1.46 anton 245: $srcdir/mkinstalldirs arch/power
1.138 anton 246: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103 anton 247: #long long is broken on (at least) gcc-2.95.* for PPC
1.165 ! anton 248: test x$ac_cv_sizeof_long_long = x &&
! 249: ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
! 250: ac_cv_sizeof_long_long=0
1.31 anton 251: ;;
1.1 anton 252: *)
1.92 anton 253: AC_MSG_WARN([Using a generic machine description])
254: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
255: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 256: machine=generic
1.97 anton 257: #I-cache flushing would be needed for dynamic code generation
1.136 anton 258: if test -z $no_dynamic_default; then
259: no_dynamic_default=1
260: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
261: fi
1.1 anton 262: esac
1.10 anton 263: AC_SUBST(host)
1.151 anton 264:
265: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
266: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
267: [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146 pazsan 268:
269: if test "${enable_force_ll+set}" = set; then
270: ac_includes_default="$ac_includes_default
271: #include \"arch/generic/128bit.h\""
272: fi
1.103 anton 273:
274: dnl the following macro produces a warning with autoconf-2.1
275: AC_CHECK_SIZEOF(char *)
276: case "$ac_cv_sizeof_char_p" in
277: 2)
278: wordsize=16
279: ;;
280: 4)
281: wordsize=32
282: ;;
283: 8)
284: wordsize=64
285: ;;
286: esac
287:
288: AC_CHECK_SIZEOF(char)
289: AC_CHECK_SIZEOF(short)
290: AC_CHECK_SIZEOF(int)
291: AC_CHECK_SIZEOF(long)
292: AC_CHECK_SIZEOF(long long)
293: AC_CHECK_SIZEOF(intptr_t)
294: AC_CHECK_SIZEOF(int128_t)
1.144 pazsan 295: AC_CHECK_SIZEOF(uint128_t)
1.103 anton 296:
297: AC_MSG_CHECKING([for a C type for cells])
298: ac_cv_int_type_cell=none
299: case "$ac_cv_sizeof_char_p" in
300: $ac_cv_sizeof_int)
301: ac_cv_int_type_cell=int
302: ;;
303: $ac_cv_sizeof_short)
304: ac_cv_int_type_cell=short
305: ;;
306: $ac_cv_sizeof_char)
307: ac_cv_int_type_cell=char
308: ;;
309: $ac_cv_sizeof_long)
310: ac_cv_int_type_cell=long
311: ;;
312: $ac_cv_sizeof_long_long)
313: ac_cv_int_type_cell="long long"
314: ;;
315: $ac_cv_sizeof_intptr_t)
316: ac_cv_int_type_cell="intptr_t"
317: ;;
318: $ac_cv_sizeof_int128_t)
319: ac_cv_int_type_cell="int128_t"
320: ;;
321: esac
322: AC_MSG_RESULT($ac_cv_int_type_cell)
323: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
324:
1.153 pazsan 325: AC_MSG_CHECKING([for a C type for wydes])
326: ac_cv_wyde_type_cell=none
327: case 2 in
328: $ac_cv_sizeof_int)
329: ac_cv_wyde_type_cell=int
330: ;;
331: $ac_cv_sizeof_short)
332: ac_cv_wyde_type_cell=short
333: ;;
334: $ac_cv_sizeof_char)
335: ac_cv_wyde_type_cell=char
336: ;;
337: $ac_cv_sizeof_long)
338: ac_cv_wyde_type_cell=long
339: ;;
340: $ac_cv_sizeof_long_long)
341: ac_cv_wyde_type_cell="long long"
342: ;;
343: $ac_cv_sizeof_intptr_t)
344: ac_cv_wyde_type_cell="intptr_t"
345: ;;
346: $ac_cv_sizeof_int128_t)
347: ac_cv_wyde_type_cell="int128_t"
348: ;;
349: esac
350: AC_MSG_RESULT($ac_cv_wyde_type_cell)
351: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
352:
353: AC_MSG_CHECKING([for a C type for tetrabytes])
354: ac_cv_tetrabyte_type_cell=none
355: case 4 in
356: $ac_cv_sizeof_int)
357: ac_cv_tetrabyte_type_cell=int
358: ;;
359: $ac_cv_sizeof_short)
360: ac_cv_tetrabyte_type_cell=short
361: ;;
362: $ac_cv_sizeof_char)
363: ac_cv_tetrabyte_type_cell=char
364: ;;
365: $ac_cv_sizeof_long)
366: ac_cv_tetrabyte_type_cell=long
367: ;;
368: $ac_cv_sizeof_long_long)
369: ac_cv_tetrabyte_type_cell="long long"
370: ;;
371: $ac_cv_sizeof_intptr_t)
372: ac_cv_tetrabyte_type_cell="intptr_t"
373: ;;
374: $ac_cv_sizeof_int128_t)
375: ac_cv_tetrabyte_type_cell="int128_t"
376: ;;
377: esac
378: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
379: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
380:
1.103 anton 381: AC_MSG_CHECKING([for a C type for double-cells])
382: ac_cv_int_type_double_cell=none
383: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
384: $ac_cv_sizeof_short)
385: ac_cv_int_type_double_cell=short
386: ;;
387: $ac_cv_sizeof_int)
388: ac_cv_int_type_double_cell=int
389: ;;
390: $ac_cv_sizeof_long)
391: ac_cv_int_type_double_cell=long
392: ;;
393: $ac_cv_sizeof_long_long)
394: ac_cv_int_type_double_cell="long long"
395: ;;
396: $ac_cv_sizeof_intptr_t)
397: ac_cv_int_type_double_cell="intptr_t"
398: ;;
399: $ac_cv_sizeof_int128_t)
400: ac_cv_int_type_double_cell="int128_t"
401: ;;
402: esac
403: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144 pazsan 404:
405: AC_MSG_CHECKING([for a C type for unsigned double-cells])
406: ac_cv_int_type_double_ucell=none
407: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
408: $ac_cv_sizeof_short)
409: ac_cv_int_type_double_ucell="unsigned short"
410: ;;
411: $ac_cv_sizeof_int)
412: ac_cv_int_type_double_ucell="unsigned int"
413: ;;
414: $ac_cv_sizeof_long)
415: ac_cv_int_type_double_ucell="unsigned long"
416: ;;
417: $ac_cv_sizeof_long_long)
418: ac_cv_int_type_double_ucell="unsigned long long"
419: ;;
420: $ac_cv_sizeof_intptr_t)
421: ac_cv_int_type_double_ucell="unsigned intptr_t"
422: ;;
423: $ac_cv_sizeof_uint128_t)
424: ac_cv_int_type_double_ucell="uint128_t"
425: ;;
426: esac
427: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
428:
429: if test "$ac_cv_int_type_double_cell" = none || \
430: test "$ac_cv_int_type_double_ucell" = none
431: then
1.103 anton 432: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
433: AC_LIBOBJ(dblsub)
434: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
435: else
436: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144 pazsan 437: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.103 anton 438: fi
439:
440: AC_TYPE_OFF_T
441: AC_CHECK_SIZEOF(off_t)
442: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
443: ac_small_off_t=$?
444: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1 anton 445:
1.109 anton 446: ENGINE_FLAGS=
447: AC_SUBST(ENGINE_FLAGS)
448:
449: # Try if GCC understands -fno-gcse
450:
451: AC_MSG_CHECKING([if $CC understands -fno-gcse])
452: CFLAGS_1="$CFLAGS"
453: CFLAGS="$CFLAGS -fno-gcse"
454: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
455: CFLAGS="$CFLAGS_1"
456: AC_MSG_RESULT($ac_nogcse)
457:
458: # Try if GCC understands -fno-strict-aliasing
459: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
460: CFLAGS_1="$CFLAGS"
461: CFLAGS="$CFLAGS -fno-strict-aliasing"
462: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
463: CFLAGS="$CFLAGS_1"
464: AC_MSG_RESULT($ac_nostrictaliasing)
465:
1.123 anton 466: # Try if GCC understands -fno-crossjumping
467: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88 pazsan 468: CFLAGS_1="$CFLAGS"
1.123 anton 469: CFLAGS="$CFLAGS -fno-crossjumping"
1.125 anton 470: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109 anton 471: CFLAGS="$CFLAGS_1"
1.124 pazsan 472: AC_MSG_RESULT($ac_nocrossjumping)
1.88 pazsan 473:
1.137 pazsan 474: # Try if GCC understands -fno-reorder-blocks
475: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
476: CFLAGS_1="$CFLAGS"
477: CFLAGS="$CFLAGS -fno-reorder-blocks"
478: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
479: CFLAGS="$CFLAGS_1"
480: AC_MSG_RESULT($ac_noreorder_blocks)
481:
1.130 anton 482: # Try if GCC understands __attribute__((unused))
483: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
484: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
485: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
486: AC_MSG_RESULT($MAYBE_UNUSED)
487:
1.66 anton 488: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 489: AC_SUBST(asm_fs)
490:
1.66 anton 491: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 492: AC_SUBST(disasm_fs)
493:
1.116 anton 494: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114 anton 495:
1.39 pazsan 496: case "$host_os" in
1.157 pazsan 497: *win32*)
498: # !!!FIXME!!! problems with cygwin and ';' as path separator
1.108 anton 499: DIRSEP="\\\\"
1.127 anton 500: PATHSEP=";"
1.142 anton 501: #we want the builtins of command.com/cmd.exe and its
502: # handling of .com files.
503: #$COMSPEC contains the name of the Windows shell;
504: # the ./ is there, because the bash does not recognize
505: # absolute DOS filenames
506: DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39 pazsan 507: ;;
1.97 anton 508: *darwin*)
509: #Darwin uses some funny preprocessor by default; eliminate it:
1.127 anton 510: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120 anton 511: CFLAGS="$CFLAGS -no-cpp-precomp"
1.98 anton 512: DIRSEP="/"
1.127 anton 513: PATHSEP=":"
1.141 anton 514: DEFAULTSYSTEMPREFIX=""
1.98 anton 515: ;;
1.39 pazsan 516: *)
1.88 pazsan 517: DIRSEP="/"
1.127 anton 518: PATHSEP=":"
1.141 anton 519: DEFAULTSYSTEMPREFIX=""
1.39 pazsan 520: ;;
521: esac
1.88 pazsan 522: AC_SUBST(DIRSEP)
1.89 pazsan 523: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127 anton 524: AC_SUBST(PATHSEP)
525: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141 anton 526: AC_SUBST(DEFAULTSYSTEMPREFIX)
527: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.39 pazsan 528:
1.1 anton 529: dnl Now a little support for DOS/DJGCC
1.30 pazsan 530: AC_SUBST(GFORTH_EXE)
531: GFORTH_EXE=""
1.48 anton 532: AC_SUBST(GFORTHFAST_EXE)
533: GFORTHFAST_EXE=""
1.83 anton 534: AC_SUBST(GFORTHITC_EXE)
535: GFORTHITC_EXE=""
1.30 pazsan 536: AC_SUBST(GFORTHDITC_EXE)
537: GFORTHDITC_EXE=""
1.27 anton 538:
539: AC_SUBST(FORTHSIZES)
1.24 anton 540:
1.104 anton 541: dnl if test "$PEEPHOLE" = "yes"
542: dnl then
543: dnl PEEPHOLEFLAG="true"
544: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
545: dnl else
546: dnl PEEPHOLEFLAG="false"
547: dnl fi
548: PEEPHOLEFLAG="true"
1.79 pazsan 549: AC_SUBST(PEEPHOLEFLAG)
550:
1.1 anton 551: dnl copy commands for systems that don't have links
1.29 pazsan 552: AC_SUBST(LINK_KERNL)
553: LINK_KERNL=""
1.1 anton 554:
555: #if test $host_os=dos
556: #then
557: # echo Configuring for DOS!!!
558: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 559: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 560: #fi
561:
562: dnl the following macro produces a warning with autoconf-2.1
563: AC_C_BIGENDIAN
1.23 pazsan 564: AC_SUBST(KERNEL)
1.1 anton 565: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
566: if test $ac_cv_c_bigendian = yes; then
567: bytesex=b
1.23 pazsan 568: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 569: else
570: bytesex=l
1.23 pazsan 571: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 572: fi
573:
1.91 anton 574: #check how to do asm(".skip 16")
1.148 anton 575: echo "CFLAGS=$CFLAGS"
576: echo "ac_link=$ac_link"
1.92 anton 577: AC_MSG_CHECKING([if and how we can waste code space])
1.136 anton 578: if test -z "$skipcode"; then
1.148 anton 579: skipcode=no
580: CFLAGS_1="$CFLAGS"
581: CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136 anton 582: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
583: do
1.91 anton 584: AC_TRY_RUN(
1.136 anton 585: [int foo(int,int,int);
1.91 anton 586: main()
587: {
1.136 anton 588: exit(foo(0,0,0)!=16);
1.91 anton 589: }
1.136 anton 590: int foo(int x, int y, int z)
1.91 anton 591: {
1.136 anton 592: static void *labels[]={&&label1, &&label2};
1.91 anton 593: if (x) {
1.136 anton 594: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91 anton 595: label1:
1.148 anton 596: asm("$i"); /* or ".space 16" or somesuch */
1.136 anton 597: label2: ;
598: }
599: {
600: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
601: return labels[1]-labels[0];
1.91 anton 602: }
1.136 anton 603: }]
1.92 anton 604: ,skipcode=$i; break
605: ,,)
1.136 anton 606: done
1.148 anton 607: CFLAGS=$CFLAGS_1
1.136 anton 608: fi
1.92 anton 609: AC_MSG_RESULT($skipcode)
610: if test "$skipcode" = no
611: then
1.136 anton 612: if test -z $no_dynamic_default; then
613: no_dynamic_default=1
614: AC_MSG_WARN(Disabling default dynamic native code generation)
615: fi
1.92 anton 616: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
617: else
618: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
619: fi
1.91 anton 620:
1.136 anton 621: test "$no_dynamic_default" || no_dynamic_default=0
1.92 anton 622: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 623:
1.1 anton 624: dnl Checks for programs.
625: AC_PROG_LN_S
1.95 anton 626: AC_PROG_INSTALL
1.163 pazsan 627: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
1.1 anton 628:
629: dnl Checks for library functions
1.2 anton 630: dnl This check is just for making later checks link with libm.
631: dnl using sin here is no good idea since it is built-into gcc and typechecked
632: AC_CHECK_LIB(m,asin)
1.31 anton 633: AC_CHECK_LIB(dl,dlopen)
1.152 pazsan 634: dnl check for libffi 2.x
635: AC_CHECK_LIB(ffi,ffi_call)
636: if test $ac_cv_lib_ffi_ffi_call = yes
637: then
638: LIBFFIFLAG="true"
639: FFCALLFLAG="false"
640: OLDCALLFLAG="false"
641: AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
642: else
1.124 pazsan 643: dnl check for ffcall libraries
644: dnl unfortunately, these four calls are separated out into a library each.
645: AC_CHECK_LIB(avcall,__builtin_avcall)
646: AC_CHECK_LIB(callback,__vacall_r)
647: AC_CHECK_LIB(vacall,vacall)
648: AC_CHECK_LIB(trampoline,alloc_trampoline)
1.152 pazsan 649: LIBFFIFLAG="false"
1.125 anton 650: FFCALLFLAG="false"
1.129 pazsan 651: OLDCALLFLAG="true"
652: 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])
653: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
1.152 pazsan 654: fi
655: AC_SUBST(LIBFFIFLAG)
1.125 anton 656: AC_SUBST(FFCALLFLAG)
1.129 pazsan 657: AC_SUBST(OLDCALLFLAG)
1.32 pazsan 658: if test "$host_os" != "nextstep3"
659: then
660: AC_FUNC_MEMCMP
661: fi
1.25 pazsan 662: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97 anton 663: AC_FUNC_FSEEKO
664: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
1.111 anton 665: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19 anton 666: AC_DECL_SYS_SIGLIST
1.138 anton 667: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90 anton 668: AC_CHECK_FUNCS(expm1 log1p)
669: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 670: dnl No check for select, because our replacement is no good under
671: dnl anything but DOS
1.62 anton 672: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 673: AC_FUNC_FNMATCH
1.87 pazsan 674: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 675: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 676: AM_PATH_LISPDIR
1.1 anton 677:
1.23 pazsan 678: kernel_fi=kernl${wordsize}${bytesex}.fi
679: AC_SUBST(kernel_fi)
1.50 jwilke 680:
1.76 anton 681: #this breaks bindists
682: #dnl replace srource directory by absolute value
683: #if test $srcdir = "."; then srcdir=`pwd`
684: #fi
1.8 anton 685:
1.34 anton 686: AC_SUBST(machine)
1.95 anton 687: AC_CONFIG_FILES([
1.31 anton 688: Makefile
1.45 pazsan 689: Makedist
1.43 anton 690: gforthmi
1.80 anton 691: vmgen
1.79 pazsan 692: machpc.fs
1.159 pazsan 693: envos.fs
1.35 anton 694: engine/Makefile
1.161 pazsan 695: doc/version.texi
696: build-ec ])
1.95 anton 697: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43 anton 698: chmod +x gforthmi
1.80 anton 699: chmod +x vmgen
1.162 pazsan 700: chmod +x build-ec
1.95 anton 701: test -d kernel||mkdir kernel]],[[]])
702: AC_OUTPUT
1.44 anton 703:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>