Annotation of gforth/configure.in, revision 1.154
1.1 anton 1: dnl Process this file with autoconf to produce a configure script.
1.20 anton 2:
1.154 ! anton 3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005 Free Software Foundation, Inc.
1.20 anton 4:
5: #This file is part of Gforth.
6:
7: #Gforth is free software; you can redistribute it and/or
8: #modify it under the terms of the GNU General Public License
9: #as published by the Free Software Foundation; either version 2
10: #of the License, or (at your option) any later version.
11:
12: #This program is distributed in the hope that it will be useful,
13: #but WITHOUT ANY WARRANTY; without even the implied warranty of
14: #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the
15: #GNU General Public License for more details.
16:
17: #You should have received a copy of the GNU General Public License
18: #along with this program; if not, write to the Free Software
1.74 anton 19: #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.20 anton 20:
1.121 anton 21:
1.34 anton 22: dnl We use some automake macros here,
23: dnl but don't use automake for creating Makefile.in
1.136 anton 24: AC_INIT([gforth],[0.6.2-20030910],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
1.113 anton 25: AC_PREREQ(2.54)
1.47 anton 26: #snapshots have numbers major.minor.release-YYYYMMDD
1.92 anton 27: #note that lexicographic ordering must be heeded.
1.47 anton 28: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
1.136 anton 29: UPDATED="September 10, 2003"
1.84 anton 30: AC_SUBST(UPDATED)
1.94 anton 31: AC_CONFIG_HEADERS(engine/config.h)
1.14 anton 32:
1.121 anton 33: #suppress the "-g -O2" default
34: test "$CFLAGS" || CFLAGS=-O2
35:
1.1 anton 36: AC_ARG_ENABLE(force-reg,
1.149 anton 37: AC_HELP_STRING([--enable-force-reg],
38: [ Use explicit register declarations if they appear in
1.1 anton 39: the machine.h file. This can cause a good speedup,
40: but also incorrect code with some gcc versions on
1.149 anton 41: some processors (default disabled).]),
42: ,enable_force_reg=no)
43: test "$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 "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9 pazsan 139:
1.15 pazsan 140: AC_SUBST(CC)
1.9 pazsan 141: AC_SUBST(DEBUGFLAG)
1.7 anton 142:
1.128 pazsan 143: AC_MSG_CHECKING(make type)
144: make_type=`make -v 2>&1|grep 'ake version'|sed 's/ version .*//'`
145:
146: GNUMAKE='#'
147: test "$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: $srcdir/mkinstalldirs arch/power
1.138 anton 246: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103 anton 247: #long long is broken on (at least) gcc-2.95.* for PPC
1.104 anton 248: test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
1.31 anton 249: ;;
1.1 anton 250: *)
1.92 anton 251: AC_MSG_WARN([Using a generic machine description])
252: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
253: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 254: machine=generic
1.97 anton 255: #I-cache flushing would be needed for dynamic code generation
1.136 anton 256: if test -z $no_dynamic_default; then
257: no_dynamic_default=1
258: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
259: fi
1.1 anton 260: esac
1.10 anton 261: AC_SUBST(host)
1.151 anton 262:
263: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
264: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
265: [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146 pazsan 266:
267: if test "${enable_force_ll+set}" = set; then
268: ac_includes_default="$ac_includes_default
269: #include \"arch/generic/128bit.h\""
270: fi
1.103 anton 271:
272: dnl the following macro produces a warning with autoconf-2.1
273: AC_CHECK_SIZEOF(char *)
274: case "$ac_cv_sizeof_char_p" in
275: 2)
276: wordsize=16
277: ;;
278: 4)
279: wordsize=32
280: ;;
281: 8)
282: wordsize=64
283: ;;
284: esac
285:
286: AC_CHECK_SIZEOF(char)
287: AC_CHECK_SIZEOF(short)
288: AC_CHECK_SIZEOF(int)
289: AC_CHECK_SIZEOF(long)
290: AC_CHECK_SIZEOF(long long)
291: AC_CHECK_SIZEOF(intptr_t)
292: AC_CHECK_SIZEOF(int128_t)
1.144 pazsan 293: AC_CHECK_SIZEOF(uint128_t)
1.103 anton 294:
295: AC_MSG_CHECKING([for a C type for cells])
296: ac_cv_int_type_cell=none
297: case "$ac_cv_sizeof_char_p" in
298: $ac_cv_sizeof_int)
299: ac_cv_int_type_cell=int
300: ;;
301: $ac_cv_sizeof_short)
302: ac_cv_int_type_cell=short
303: ;;
304: $ac_cv_sizeof_char)
305: ac_cv_int_type_cell=char
306: ;;
307: $ac_cv_sizeof_long)
308: ac_cv_int_type_cell=long
309: ;;
310: $ac_cv_sizeof_long_long)
311: ac_cv_int_type_cell="long long"
312: ;;
313: $ac_cv_sizeof_intptr_t)
314: ac_cv_int_type_cell="intptr_t"
315: ;;
316: $ac_cv_sizeof_int128_t)
317: ac_cv_int_type_cell="int128_t"
318: ;;
319: esac
320: AC_MSG_RESULT($ac_cv_int_type_cell)
321: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
322:
1.153 pazsan 323: AC_MSG_CHECKING([for a C type for wydes])
324: ac_cv_wyde_type_cell=none
325: case 2 in
326: $ac_cv_sizeof_int)
327: ac_cv_wyde_type_cell=int
328: ;;
329: $ac_cv_sizeof_short)
330: ac_cv_wyde_type_cell=short
331: ;;
332: $ac_cv_sizeof_char)
333: ac_cv_wyde_type_cell=char
334: ;;
335: $ac_cv_sizeof_long)
336: ac_cv_wyde_type_cell=long
337: ;;
338: $ac_cv_sizeof_long_long)
339: ac_cv_wyde_type_cell="long long"
340: ;;
341: $ac_cv_sizeof_intptr_t)
342: ac_cv_wyde_type_cell="intptr_t"
343: ;;
344: $ac_cv_sizeof_int128_t)
345: ac_cv_wyde_type_cell="int128_t"
346: ;;
347: esac
348: AC_MSG_RESULT($ac_cv_wyde_type_cell)
349: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
350:
351: AC_MSG_CHECKING([for a C type for tetrabytes])
352: ac_cv_tetrabyte_type_cell=none
353: case 4 in
354: $ac_cv_sizeof_int)
355: ac_cv_tetrabyte_type_cell=int
356: ;;
357: $ac_cv_sizeof_short)
358: ac_cv_tetrabyte_type_cell=short
359: ;;
360: $ac_cv_sizeof_char)
361: ac_cv_tetrabyte_type_cell=char
362: ;;
363: $ac_cv_sizeof_long)
364: ac_cv_tetrabyte_type_cell=long
365: ;;
366: $ac_cv_sizeof_long_long)
367: ac_cv_tetrabyte_type_cell="long long"
368: ;;
369: $ac_cv_sizeof_intptr_t)
370: ac_cv_tetrabyte_type_cell="intptr_t"
371: ;;
372: $ac_cv_sizeof_int128_t)
373: ac_cv_tetrabyte_type_cell="int128_t"
374: ;;
375: esac
376: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
377: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
378:
1.103 anton 379: AC_MSG_CHECKING([for a C type for double-cells])
380: ac_cv_int_type_double_cell=none
381: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
382: $ac_cv_sizeof_short)
383: ac_cv_int_type_double_cell=short
384: ;;
385: $ac_cv_sizeof_int)
386: ac_cv_int_type_double_cell=int
387: ;;
388: $ac_cv_sizeof_long)
389: ac_cv_int_type_double_cell=long
390: ;;
391: $ac_cv_sizeof_long_long)
392: ac_cv_int_type_double_cell="long long"
393: ;;
394: $ac_cv_sizeof_intptr_t)
395: ac_cv_int_type_double_cell="intptr_t"
396: ;;
397: $ac_cv_sizeof_int128_t)
398: ac_cv_int_type_double_cell="int128_t"
399: ;;
400: esac
401: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144 pazsan 402:
403: AC_MSG_CHECKING([for a C type for unsigned double-cells])
404: ac_cv_int_type_double_ucell=none
405: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
406: $ac_cv_sizeof_short)
407: ac_cv_int_type_double_ucell="unsigned short"
408: ;;
409: $ac_cv_sizeof_int)
410: ac_cv_int_type_double_ucell="unsigned int"
411: ;;
412: $ac_cv_sizeof_long)
413: ac_cv_int_type_double_ucell="unsigned long"
414: ;;
415: $ac_cv_sizeof_long_long)
416: ac_cv_int_type_double_ucell="unsigned long long"
417: ;;
418: $ac_cv_sizeof_intptr_t)
419: ac_cv_int_type_double_ucell="unsigned intptr_t"
420: ;;
421: $ac_cv_sizeof_uint128_t)
422: ac_cv_int_type_double_ucell="uint128_t"
423: ;;
424: esac
425: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
426:
427: if test "$ac_cv_int_type_double_cell" = none || \
428: test "$ac_cv_int_type_double_ucell" = none
429: then
1.103 anton 430: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
431: AC_LIBOBJ(dblsub)
432: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
433: else
434: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144 pazsan 435: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.103 anton 436: fi
437:
438: AC_TYPE_OFF_T
439: AC_CHECK_SIZEOF(off_t)
440: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
441: ac_small_off_t=$?
442: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1 anton 443:
1.109 anton 444: ENGINE_FLAGS=
445: AC_SUBST(ENGINE_FLAGS)
446:
447: # Try if GCC understands -fno-gcse
448:
449: AC_MSG_CHECKING([if $CC understands -fno-gcse])
450: CFLAGS_1="$CFLAGS"
451: CFLAGS="$CFLAGS -fno-gcse"
452: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
453: CFLAGS="$CFLAGS_1"
454: AC_MSG_RESULT($ac_nogcse)
455:
456: # Try if GCC understands -fno-strict-aliasing
457: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
458: CFLAGS_1="$CFLAGS"
459: CFLAGS="$CFLAGS -fno-strict-aliasing"
460: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
461: CFLAGS="$CFLAGS_1"
462: AC_MSG_RESULT($ac_nostrictaliasing)
463:
1.123 anton 464: # Try if GCC understands -fno-crossjumping
465: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88 pazsan 466: CFLAGS_1="$CFLAGS"
1.123 anton 467: CFLAGS="$CFLAGS -fno-crossjumping"
1.125 anton 468: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109 anton 469: CFLAGS="$CFLAGS_1"
1.124 pazsan 470: AC_MSG_RESULT($ac_nocrossjumping)
1.88 pazsan 471:
1.137 pazsan 472: # Try if GCC understands -fno-reorder-blocks
473: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
474: CFLAGS_1="$CFLAGS"
475: CFLAGS="$CFLAGS -fno-reorder-blocks"
476: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
477: CFLAGS="$CFLAGS_1"
478: AC_MSG_RESULT($ac_noreorder_blocks)
479:
1.130 anton 480: # Try if GCC understands __attribute__((unused))
481: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
482: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
483: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
484: AC_MSG_RESULT($MAYBE_UNUSED)
485:
1.66 anton 486: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 487: AC_SUBST(asm_fs)
488:
1.66 anton 489: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 490: AC_SUBST(disasm_fs)
491:
1.116 anton 492: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114 anton 493:
1.39 pazsan 494: case "$host_os" in
1.107 anton 495: *win32|cygwin)
1.108 anton 496: DIRSEP="\\\\"
1.127 anton 497: PATHSEP=";"
1.142 anton 498: #we want the builtins of command.com/cmd.exe and its
499: # handling of .com files.
500: #$COMSPEC contains the name of the Windows shell;
501: # the ./ is there, because the bash does not recognize
502: # absolute DOS filenames
503: DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39 pazsan 504: ;;
1.97 anton 505: *darwin*)
506: #Darwin uses some funny preprocessor by default; eliminate it:
1.127 anton 507: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120 anton 508: CFLAGS="$CFLAGS -no-cpp-precomp"
1.98 anton 509: DIRSEP="/"
1.127 anton 510: PATHSEP=":"
1.141 anton 511: DEFAULTSYSTEMPREFIX=""
1.98 anton 512: ;;
1.39 pazsan 513: *)
1.88 pazsan 514: DIRSEP="/"
1.127 anton 515: PATHSEP=":"
1.141 anton 516: DEFAULTSYSTEMPREFIX=""
1.39 pazsan 517: ;;
518: esac
1.88 pazsan 519: AC_SUBST(DIRSEP)
1.89 pazsan 520: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127 anton 521: AC_SUBST(PATHSEP)
522: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141 anton 523: AC_SUBST(DEFAULTSYSTEMPREFIX)
524: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.39 pazsan 525:
1.1 anton 526: dnl Now a little support for DOS/DJGCC
1.30 pazsan 527: AC_SUBST(GFORTH_EXE)
528: GFORTH_EXE=""
1.48 anton 529: AC_SUBST(GFORTHFAST_EXE)
530: GFORTHFAST_EXE=""
1.83 anton 531: AC_SUBST(GFORTHITC_EXE)
532: GFORTHITC_EXE=""
1.30 pazsan 533: AC_SUBST(GFORTHDITC_EXE)
534: GFORTHDITC_EXE=""
1.27 anton 535:
536: AC_SUBST(FORTHSIZES)
1.24 anton 537:
1.104 anton 538: dnl if test "$PEEPHOLE" = "yes"
539: dnl then
540: dnl PEEPHOLEFLAG="true"
541: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
542: dnl else
543: dnl PEEPHOLEFLAG="false"
544: dnl fi
545: PEEPHOLEFLAG="true"
1.79 pazsan 546: AC_SUBST(PEEPHOLEFLAG)
547:
1.1 anton 548: dnl copy commands for systems that don't have links
1.29 pazsan 549: AC_SUBST(LINK_KERNL)
550: LINK_KERNL=""
1.1 anton 551:
552: #if test $host_os=dos
553: #then
554: # echo Configuring for DOS!!!
555: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 556: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 557: #fi
558:
559: dnl the following macro produces a warning with autoconf-2.1
560: AC_C_BIGENDIAN
1.23 pazsan 561: AC_SUBST(KERNEL)
1.1 anton 562: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
563: if test $ac_cv_c_bigendian = yes; then
564: bytesex=b
1.23 pazsan 565: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 566: else
567: bytesex=l
1.23 pazsan 568: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 569: fi
570:
1.91 anton 571: #check how to do asm(".skip 16")
1.148 anton 572: echo "CFLAGS=$CFLAGS"
573: echo "ac_link=$ac_link"
1.92 anton 574: AC_MSG_CHECKING([if and how we can waste code space])
1.136 anton 575: if test -z "$skipcode"; then
1.148 anton 576: skipcode=no
577: CFLAGS_1="$CFLAGS"
578: CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136 anton 579: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
580: do
1.91 anton 581: AC_TRY_RUN(
1.136 anton 582: [int foo(int,int,int);
1.91 anton 583: main()
584: {
1.136 anton 585: exit(foo(0,0,0)!=16);
1.91 anton 586: }
1.136 anton 587: int foo(int x, int y, int z)
1.91 anton 588: {
1.136 anton 589: static void *labels[]={&&label1, &&label2};
1.91 anton 590: if (x) {
1.136 anton 591: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91 anton 592: label1:
1.148 anton 593: asm("$i"); /* or ".space 16" or somesuch */
1.136 anton 594: label2: ;
595: }
596: {
597: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
598: return labels[1]-labels[0];
1.91 anton 599: }
1.136 anton 600: }]
1.92 anton 601: ,skipcode=$i; break
602: ,,)
1.136 anton 603: done
1.148 anton 604: CFLAGS=$CFLAGS_1
1.136 anton 605: fi
1.92 anton 606: AC_MSG_RESULT($skipcode)
607: if test "$skipcode" = no
608: then
1.136 anton 609: if test -z $no_dynamic_default; then
610: no_dynamic_default=1
611: AC_MSG_WARN(Disabling default dynamic native code generation)
612: fi
1.92 anton 613: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
614: else
615: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
616: fi
1.91 anton 617:
1.136 anton 618: test "$no_dynamic_default" || no_dynamic_default=0
1.92 anton 619: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 620:
1.1 anton 621: dnl Checks for programs.
622: AC_PROG_LN_S
1.95 anton 623: AC_PROG_INSTALL
1.1 anton 624:
625: dnl Checks for library functions
1.2 anton 626: dnl This check is just for making later checks link with libm.
627: dnl using sin here is no good idea since it is built-into gcc and typechecked
628: AC_CHECK_LIB(m,asin)
1.31 anton 629: AC_CHECK_LIB(dl,dlopen)
1.152 pazsan 630: dnl check for libffi 2.x
631: AC_CHECK_LIB(ffi,ffi_call)
632: if test $ac_cv_lib_ffi_ffi_call = yes
633: then
634: LIBFFIFLAG="true"
635: FFCALLFLAG="false"
636: OLDCALLFLAG="false"
637: AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
638: else
1.124 pazsan 639: dnl check for ffcall libraries
640: dnl unfortunately, these four calls are separated out into a library each.
641: AC_CHECK_LIB(avcall,__builtin_avcall)
642: AC_CHECK_LIB(callback,__vacall_r)
643: AC_CHECK_LIB(vacall,vacall)
644: AC_CHECK_LIB(trampoline,alloc_trampoline)
1.152 pazsan 645: LIBFFIFLAG="false"
1.125 anton 646: FFCALLFLAG="false"
1.129 pazsan 647: OLDCALLFLAG="true"
648: 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])
649: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
1.152 pazsan 650: fi
651: AC_SUBST(LIBFFIFLAG)
1.125 anton 652: AC_SUBST(FFCALLFLAG)
1.129 pazsan 653: AC_SUBST(OLDCALLFLAG)
1.32 pazsan 654: if test "$host_os" != "nextstep3"
655: then
656: AC_FUNC_MEMCMP
657: fi
1.25 pazsan 658: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97 anton 659: AC_FUNC_FSEEKO
660: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
1.111 anton 661: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19 anton 662: AC_DECL_SYS_SIGLIST
1.138 anton 663: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90 anton 664: AC_CHECK_FUNCS(expm1 log1p)
665: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 666: dnl No check for select, because our replacement is no good under
667: dnl anything but DOS
1.62 anton 668: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 669: AC_FUNC_FNMATCH
1.87 pazsan 670: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 671: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 672: AM_PATH_LISPDIR
1.1 anton 673:
1.23 pazsan 674: kernel_fi=kernl${wordsize}${bytesex}.fi
675: AC_SUBST(kernel_fi)
1.50 jwilke 676:
1.76 anton 677: #this breaks bindists
678: #dnl replace srource directory by absolute value
679: #if test $srcdir = "."; then srcdir=`pwd`
680: #fi
1.8 anton 681:
1.34 anton 682: AC_SUBST(machine)
1.95 anton 683: AC_CONFIG_FILES([
1.31 anton 684: Makefile
1.45 pazsan 685: Makedist
1.43 anton 686: gforthmi
1.80 anton 687: vmgen
1.79 pazsan 688: machpc.fs
1.35 anton 689: engine/Makefile
1.95 anton 690: doc/version.texi ])
691: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43 anton 692: chmod +x gforthmi
1.80 anton 693: chmod +x vmgen
1.95 anton 694: test -d kernel||mkdir kernel]],[[]])
695: AC_OUTPUT
1.44 anton 696:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>