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