Annotation of gforth/configure.in, revision 1.139
1.1 anton 1: dnl Process this file with autoconf to produce a configure script.
1.20 anton 2:
1.117 anton 3: #Copyright (C) 1995,1996,1997,1998,2000,2003 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 "$CFLAGS" || CFLAGS=-O2
35:
1.1 anton 36: AC_ARG_ENABLE(force-reg,
37: [ --enable-force-reg Use explicit register declarations if they appear in
38: the machine.h file. This can cause a good speedup,
39: but also incorrect code with some gcc versions on
40: some processors (default disabled).],
1.89 pazsan 41: AC_DEFINE(FORCE_REG,,[Define if you want to use explicit register declarations for better performance or for more convenient CODE words (does not work with all GCC versions on all machines)]))
1.135 anton 42: AC_SUBST(PROFEXES)
43: AC_SUBST(PROFOBJS)
44: AC_ARG_ENABLE(prof,
45: [ --enable-prof Build gforth-prof, which outputs frequently occuring
46: sequences of primitives.],
47: PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o")
1.1 anton 48:
1.9 pazsan 49: AC_ARG_WITH(debug,
1.122 pazsan 50: [ --with-debug specifies option -g to compile with debug info
51: --without-debug omits the -g switch and creates smaller images on
52: machines where "strip" has problems with gcc style
53: debugging informations.],
1.9 pazsan 54: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
1.122 pazsan 55:
1.104 anton 56: dnl PEEPHOLE="yes"
57: dnl AC_ARG_WITH(peephole,
58: dnl [ --with-peephole Enable peephole optimization (default)
59: dnl --without-peephole disables peephole optimization. Creates smaller,
60: dnl but slower images.],
61: dnl PEEPHOLE="$withval")
62:
63: #variables mentioned in INSTALL
1.123 anton 64: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
1.104 anton 65: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
66: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
67: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
68: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
69: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
70: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
71: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
72: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
73: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
1.123 anton 74: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
75: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
1.136 anton 76: AC_ARG_VAR(skip_code, [assembly code for skipping 16 bytes of code])
1.82 anton 77:
1.96 anton 78: #set up feature test macros, so the tests get them right:
79: # turn on all POSIX, SUSv3, and GNU features if available
1.97 anton 80: AC_GNU_SOURCE
81: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
82:
83: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
84: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
85: dnl but not for _XOPEN_SOURCE)
86: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
87: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
88: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96 anton 89: # turn on large file support with 64-bit off_t where available
1.105 anton 90: AC_SYS_LARGEFILE
91: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
92: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96 anton 93:
1.82 anton 94: #currently we force direct threading this way. Eventually we should
95: #setup in the arch and engine files right
1.16 anton 96:
1.15 pazsan 97: AC_PROG_CC
98:
1.92 anton 99: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9 pazsan 100:
1.15 pazsan 101: AC_SUBST(CC)
1.9 pazsan 102: AC_SUBST(DEBUGFLAG)
1.7 anton 103:
1.128 pazsan 104: AC_MSG_CHECKING(make type)
105: make_type=`make -v 2>&1|grep 'ake version'|sed 's/ version .*//'`
106:
107: GNUMAKE='#'
108: test "$make_type" = "GNU Make" && GNUMAKE=''
109:
110: AC_MSG_RESULT($make_type)
111:
112: AC_SUBST(GNUMAKE)
113:
1.50 jwilke 114: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
115: OLDLDFLAGS=$LDFLAGS
116: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 117: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
118: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
119: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 120: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
121: AC_MSG_RESULT($ac_export_dynamic)
122:
1.1 anton 123: #terminology is a bit unusual here: The host is the system on which
124: #gforth will run; the system on which configure will run is the `build'
125: AC_CANONICAL_HOST
126: case "$host_cpu" in
1.136 anton 127: arm*)
128: machine=arm
129: CFLAGS="$CFLAGS -fomit-frame-pointer"
130: if test -z $no_dynamic_default; then
131: no_dynamic_default=1
132: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
133: fi
134: ;;
1.1 anton 135: hppa*)
1.34 anton 136: machine=hppa
1.46 anton 137: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 138: AC_LIBOBJ(../arch/hppa/cache)
1.134 anton 139: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
140: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 141: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 142: ;;
143: sparc*)
1.34 anton 144: machine=sparc
1.1 anton 145: ;;
1.31 anton 146: i386)
1.34 anton 147: machine=386
1.16 anton 148: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 149: ;;
150: i486)
1.34 anton 151: machine=386
1.31 anton 152: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
153: ;;
1.77 anton 154: i*86)
1.34 anton 155: machine=386
1.55 anton 156: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 157: CFLAGS_1="$CFLAGS"
1.87 pazsan 158: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 159: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 160: ;;
1.133 anton 161: x86_64)
162: machine=amd64
163: ;;
1.136 anton 164: ia64*)
165: machine=ia64
166: AC_LIBOBJ(../arch/ia64/flush_icache_block)
167: test "$skipcode" || skipcode="nop.i 0"
168: #".skip 16" passes the test below,
169: # but gives an assembler error in engine
170: ;;
1.26 pazsan 171: m68k)
1.34 anton 172: machine=m68k
1.32 pazsan 173: CFLAGS="$CFLAGS -fomit-frame-pointer"
174: if test "$host_os" = "nextstep3"
175: then
1.87 pazsan 176: AC_LIBOBJ(termios)
1.32 pazsan 177: fi
1.26 pazsan 178: ;;
1.1 anton 179: mips*)
1.34 anton 180: machine=mips
1.92 anton 181: #dynamic native code has the following problems on MIPS:
182: #
183: #1) J/JAL seems relocatable, but is are only
184: #relocatable within a 256MB-segment. While we try to
185: #get the linker to arrange this, there is no guarantee
186: #that this will succeed (and if the user uses a lot of
187: #memory, it is likely to fail).
188: #
189: #2) The way we generate dynamic native code may
190: #violate MIPS architectural restrictions (in
191: #particular, the delay slots of LW, MFLO, etc.)
192: #
193: #Therefore we disable dynamic native code by default:
1.136 anton 194: if test -z $no_dynamic_default; then
195: no_dynamic_default=1
196: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
197: fi
1.1 anton 198: ;;
1.9 pazsan 199: alpha*)
1.34 anton 200: machine=alpha
1.58 anton 201: #full IEEE FP support for more uniformity across platforms:
202: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 203: ;;
1.69 anton 204: power*|rs6000)
1.34 anton 205: machine=power
1.46 anton 206: $srcdir/mkinstalldirs arch/power
1.138 anton 207: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103 anton 208: #long long is broken on (at least) gcc-2.95.* for PPC
1.104 anton 209: test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
1.31 anton 210: ;;
1.1 anton 211: *)
1.92 anton 212: AC_MSG_WARN([Using a generic machine description])
213: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
214: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 215: machine=generic
1.97 anton 216: #I-cache flushing would be needed for dynamic code generation
1.136 anton 217: if test -z $no_dynamic_default; then
218: no_dynamic_default=1
219: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
220: fi
1.1 anton 221: esac
1.10 anton 222: AC_SUBST(host)
1.103 anton 223:
224: dnl the following macro produces a warning with autoconf-2.1
225: AC_CHECK_SIZEOF(char *)
226: case "$ac_cv_sizeof_char_p" in
227: 2)
228: wordsize=16
229: ;;
230: 4)
231: wordsize=32
232: ;;
233: 8)
234: wordsize=64
235: ;;
236: esac
237:
238: AC_CHECK_SIZEOF(char)
239: AC_CHECK_SIZEOF(short)
240: AC_CHECK_SIZEOF(int)
241: AC_CHECK_SIZEOF(long)
242: AC_CHECK_SIZEOF(long long)
243: AC_CHECK_SIZEOF(intptr_t)
244: AC_CHECK_SIZEOF(int128_t)
245:
246: AC_MSG_CHECKING([for a C type for cells])
247: ac_cv_int_type_cell=none
248: case "$ac_cv_sizeof_char_p" in
249: $ac_cv_sizeof_int)
250: ac_cv_int_type_cell=int
251: ;;
252: $ac_cv_sizeof_short)
253: ac_cv_int_type_cell=short
254: ;;
255: $ac_cv_sizeof_char)
256: ac_cv_int_type_cell=char
257: ;;
258: $ac_cv_sizeof_long)
259: ac_cv_int_type_cell=long
260: ;;
261: $ac_cv_sizeof_long_long)
262: ac_cv_int_type_cell="long long"
263: ;;
264: $ac_cv_sizeof_intptr_t)
265: ac_cv_int_type_cell="intptr_t"
266: ;;
267: $ac_cv_sizeof_int128_t)
268: ac_cv_int_type_cell="int128_t"
269: ;;
270: esac
271: AC_MSG_RESULT($ac_cv_int_type_cell)
272: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
273:
274: AC_MSG_CHECKING([for a C type for double-cells])
275: ac_cv_int_type_double_cell=none
276: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
277: $ac_cv_sizeof_short)
278: ac_cv_int_type_double_cell=short
279: ;;
280: $ac_cv_sizeof_int)
281: ac_cv_int_type_double_cell=int
282: ;;
283: $ac_cv_sizeof_long)
284: ac_cv_int_type_double_cell=long
285: ;;
286: $ac_cv_sizeof_long_long)
287: ac_cv_int_type_double_cell="long long"
288: ;;
289: $ac_cv_sizeof_intptr_t)
290: ac_cv_int_type_double_cell="intptr_t"
291: ;;
292: $ac_cv_sizeof_int128_t)
293: ac_cv_int_type_double_cell="int128_t"
294: ;;
295: esac
296: AC_MSG_RESULT($ac_cv_int_type_double_cell)
297: if test "$ac_cv_int_type_double_cell" = none; then
298: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
299: AC_LIBOBJ(dblsub)
300: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
301: else
302: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
303: fi
304:
305: AC_TYPE_OFF_T
306: AC_CHECK_SIZEOF(off_t)
307: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
308: ac_small_off_t=$?
309: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1 anton 310:
1.109 anton 311: ENGINE_FLAGS=
312: AC_SUBST(ENGINE_FLAGS)
313:
314: # Try if GCC understands -fno-gcse
315:
316: AC_MSG_CHECKING([if $CC understands -fno-gcse])
317: CFLAGS_1="$CFLAGS"
318: CFLAGS="$CFLAGS -fno-gcse"
319: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
320: CFLAGS="$CFLAGS_1"
321: AC_MSG_RESULT($ac_nogcse)
322:
323: # Try if GCC understands -fno-strict-aliasing
324: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
325: CFLAGS_1="$CFLAGS"
326: CFLAGS="$CFLAGS -fno-strict-aliasing"
327: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
328: CFLAGS="$CFLAGS_1"
329: AC_MSG_RESULT($ac_nostrictaliasing)
330:
1.123 anton 331: # Try if GCC understands -fno-crossjumping
332: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88 pazsan 333: CFLAGS_1="$CFLAGS"
1.123 anton 334: CFLAGS="$CFLAGS -fno-crossjumping"
1.125 anton 335: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109 anton 336: CFLAGS="$CFLAGS_1"
1.124 pazsan 337: AC_MSG_RESULT($ac_nocrossjumping)
1.88 pazsan 338:
1.137 pazsan 339: # Try if GCC understands -fno-reorder-blocks
340: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
341: CFLAGS_1="$CFLAGS"
342: CFLAGS="$CFLAGS -fno-reorder-blocks"
343: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
344: CFLAGS="$CFLAGS_1"
345: AC_MSG_RESULT($ac_noreorder_blocks)
346:
1.130 anton 347: # Try if GCC understands __attribute__((unused))
348: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
349: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
350: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
351: AC_MSG_RESULT($MAYBE_UNUSED)
352:
1.66 anton 353: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 354: AC_SUBST(asm_fs)
355:
1.66 anton 356: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 357: AC_SUBST(disasm_fs)
358:
1.139 ! anton 359: #programs needed for dis-gdb.fs
! 360: #it would be better to check for them at run-time, though
! 361: AC_CHECK_PROG([disgdb_fs1],[mktemp],[dis-gdb.fs],)
! 362: AC_CHECK_PROG([disgdb_fs],[gdb],[$disgdb_fs1],)
! 363:
1.116 anton 364: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114 anton 365:
1.39 pazsan 366: case "$host_os" in
1.107 anton 367: *win32|cygwin)
1.108 anton 368: DIRSEP="\\\\"
1.127 anton 369: PATHSEP=";"
1.39 pazsan 370: ;;
1.97 anton 371: *darwin*)
372: #Darwin uses some funny preprocessor by default; eliminate it:
1.127 anton 373: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120 anton 374: CFLAGS="$CFLAGS -no-cpp-precomp"
1.98 anton 375: DIRSEP="/"
1.127 anton 376: PATHSEP=":"
1.98 anton 377: ;;
1.39 pazsan 378: *)
1.88 pazsan 379: DIRSEP="/"
1.127 anton 380: PATHSEP=":"
1.39 pazsan 381: ;;
382: esac
1.88 pazsan 383: AC_SUBST(DIRSEP)
1.89 pazsan 384: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127 anton 385: AC_SUBST(PATHSEP)
386: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
387:
1.39 pazsan 388:
1.1 anton 389: dnl Now a little support for DOS/DJGCC
1.30 pazsan 390: AC_SUBST(GFORTH_EXE)
391: GFORTH_EXE=""
1.48 anton 392: AC_SUBST(GFORTHFAST_EXE)
393: GFORTHFAST_EXE=""
1.83 anton 394: AC_SUBST(GFORTHITC_EXE)
395: GFORTHITC_EXE=""
1.30 pazsan 396: AC_SUBST(GFORTHDITC_EXE)
397: GFORTHDITC_EXE=""
1.27 anton 398:
399: AC_SUBST(FORTHSIZES)
1.24 anton 400:
1.104 anton 401: dnl if test "$PEEPHOLE" = "yes"
402: dnl then
403: dnl PEEPHOLEFLAG="true"
404: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
405: dnl else
406: dnl PEEPHOLEFLAG="false"
407: dnl fi
408: PEEPHOLEFLAG="true"
1.79 pazsan 409: AC_SUBST(PEEPHOLEFLAG)
410:
1.1 anton 411: dnl copy commands for systems that don't have links
1.29 pazsan 412: AC_SUBST(LINK_KERNL)
413: LINK_KERNL=""
1.1 anton 414:
415: #if test $host_os=dos
416: #then
417: # echo Configuring for DOS!!!
418: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 419: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 420: #fi
421:
422: dnl the following macro produces a warning with autoconf-2.1
423: AC_C_BIGENDIAN
1.23 pazsan 424: AC_SUBST(KERNEL)
1.1 anton 425: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
426: if test $ac_cv_c_bigendian = yes; then
427: bytesex=b
1.23 pazsan 428: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 429: else
430: bytesex=l
1.23 pazsan 431: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 432: fi
433:
1.91 anton 434: #check how to do asm(".skip 16")
1.92 anton 435: AC_MSG_CHECKING([if and how we can waste code space])
1.136 anton 436: if test -z "$skipcode"; then
437: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
438: do
1.91 anton 439: AC_TRY_RUN(
1.136 anton 440: [int foo(int,int,int);
1.91 anton 441: main()
442: {
1.136 anton 443: exit(foo(0,0,0)!=16);
1.91 anton 444: }
1.136 anton 445: int foo(int x, int y, int z)
1.91 anton 446: {
1.136 anton 447: static void *labels[]={&&label1, &&label2};
1.91 anton 448: if (x) {
1.136 anton 449: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91 anton 450: label1:
1.136 anton 451: asm(".skip 16"); /* or ".space 16" or somesuch */
452: label2: ;
453: }
454: {
455: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
456: return labels[1]-labels[0];
1.91 anton 457: }
1.136 anton 458: }]
1.92 anton 459: ,skipcode=$i; break
460: ,,)
1.136 anton 461: done
462: fi
1.92 anton 463: AC_MSG_RESULT($skipcode)
464: if test "$skipcode" = no
465: then
1.136 anton 466: if test -z $no_dynamic_default; then
467: no_dynamic_default=1
468: AC_MSG_WARN(Disabling default dynamic native code generation)
469: fi
1.92 anton 470: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
471: else
472: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
473: fi
1.91 anton 474:
1.136 anton 475: test "$no_dynamic_default" || no_dynamic_default=0
1.92 anton 476: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 477:
1.1 anton 478: dnl Checks for programs.
479: AC_PROG_LN_S
1.95 anton 480: AC_PROG_INSTALL
1.1 anton 481:
482: dnl Checks for library functions
1.2 anton 483: dnl This check is just for making later checks link with libm.
484: dnl using sin here is no good idea since it is built-into gcc and typechecked
485: AC_CHECK_LIB(m,asin)
1.31 anton 486: AC_CHECK_LIB(dl,dlopen)
1.124 pazsan 487: dnl check for ffcall libraries
488: dnl unfortunately, these four calls are separated out into a library each.
489: AC_CHECK_LIB(avcall,__builtin_avcall)
490: AC_CHECK_LIB(callback,__vacall_r)
491: AC_CHECK_LIB(vacall,vacall)
492: AC_CHECK_LIB(trampoline,alloc_trampoline)
1.125 anton 493: FFCALLFLAG="false"
1.129 pazsan 494: OLDCALLFLAG="true"
495: 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])
496: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
1.125 anton 497: AC_SUBST(FFCALLFLAG)
1.129 pazsan 498: AC_SUBST(OLDCALLFLAG)
1.32 pazsan 499: if test "$host_os" != "nextstep3"
500: then
501: AC_FUNC_MEMCMP
502: fi
1.25 pazsan 503: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97 anton 504: AC_FUNC_FSEEKO
505: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
1.111 anton 506: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19 anton 507: AC_DECL_SYS_SIGLIST
1.138 anton 508: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90 anton 509: AC_CHECK_FUNCS(expm1 log1p)
510: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 511: dnl No check for select, because our replacement is no good under
512: dnl anything but DOS
1.62 anton 513: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 514: AC_FUNC_FNMATCH
1.87 pazsan 515: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 516: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 517: AM_PATH_LISPDIR
1.1 anton 518:
1.23 pazsan 519: kernel_fi=kernl${wordsize}${bytesex}.fi
520: AC_SUBST(kernel_fi)
1.50 jwilke 521:
1.76 anton 522: #this breaks bindists
523: #dnl replace srource directory by absolute value
524: #if test $srcdir = "."; then srcdir=`pwd`
525: #fi
1.8 anton 526:
1.34 anton 527: AC_SUBST(machine)
1.95 anton 528: AC_CONFIG_FILES([
1.31 anton 529: Makefile
1.45 pazsan 530: Makedist
1.43 anton 531: gforthmi
1.80 anton 532: vmgen
1.79 pazsan 533: machpc.fs
1.35 anton 534: engine/Makefile
1.95 anton 535: doc/version.texi ])
536: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43 anton 537: chmod +x gforthmi
1.80 anton 538: chmod +x vmgen
1.95 anton 539: test -d kernel||mkdir kernel]],[[]])
540: AC_OUTPUT
1.44 anton 541:
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