Annotation of gforth/configure.in, revision 1.174
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])
1.174 ! anton 120: AC_ARG_VAR(asmcomment, [assembler comment start string])
1.82 anton 121:
1.96 anton 122: #set up feature test macros, so the tests get them right:
123: # turn on all POSIX, SUSv3, and GNU features if available
1.97 anton 124: AC_GNU_SOURCE
125: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
126:
127: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
128: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
129: dnl but not for _XOPEN_SOURCE)
130: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
131: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
132: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96 anton 133: # turn on large file support with 64-bit off_t where available
1.105 anton 134: AC_SYS_LARGEFILE
135: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
136: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96 anton 137:
1.82 anton 138: #currently we force direct threading this way. Eventually we should
139: #setup in the arch and engine files right
1.16 anton 140:
1.15 pazsan 141: AC_PROG_CC
142:
1.92 anton 143: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9 pazsan 144:
1.15 pazsan 145: AC_SUBST(CC)
1.9 pazsan 146: AC_SUBST(DEBUGFLAG)
1.167 pazsan 147: AC_SUBST(EC_MODE)
1.7 anton 148:
1.174 ! anton 149: #this is used to disable some (not generally essential) part of the
! 150: #Makefile that some makes don't grok. It would be better to test for
! 151: #this specific Makefile feature than the make version.
1.128 pazsan 152: AC_MSG_CHECKING(make type)
1.174 ! anton 153: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
1.128 pazsan 154: GNUMAKE='#'
155: test "$make_type" = "GNU Make" && GNUMAKE=''
156: AC_MSG_RESULT($make_type)
157: AC_SUBST(GNUMAKE)
158:
1.50 jwilke 159: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
160: OLDLDFLAGS=$LDFLAGS
161: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 162: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
163: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
164: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 165: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
166: AC_MSG_RESULT($ac_export_dynamic)
167:
1.1 anton 168: #terminology is a bit unusual here: The host is the system on which
169: #gforth will run; the system on which configure will run is the `build'
170: AC_CANONICAL_HOST
171: case "$host_cpu" in
1.136 anton 172: arm*)
173: machine=arm
174: CFLAGS="$CFLAGS -fomit-frame-pointer"
175: if test -z $no_dynamic_default; then
176: no_dynamic_default=1
177: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
178: fi
179: ;;
1.1 anton 180: hppa*)
1.34 anton 181: machine=hppa
1.46 anton 182: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 183: AC_LIBOBJ(../arch/hppa/cache)
1.134 anton 184: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
185: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 186: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 187: ;;
188: sparc*)
1.34 anton 189: machine=sparc
1.1 anton 190: ;;
1.31 anton 191: i386)
1.34 anton 192: machine=386
1.16 anton 193: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 194: ;;
195: i486)
1.34 anton 196: machine=386
1.31 anton 197: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
198: ;;
1.77 anton 199: i*86)
1.34 anton 200: machine=386
1.55 anton 201: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 202: CFLAGS_1="$CFLAGS"
1.87 pazsan 203: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 204: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 205: ;;
1.133 anton 206: x86_64)
207: machine=amd64
208: ;;
1.136 anton 209: ia64*)
210: machine=ia64
211: AC_LIBOBJ(../arch/ia64/flush_icache_block)
212: test "$skipcode" || skipcode="nop.i 0"
213: #".skip 16" passes the test below,
214: # but gives an assembler error in engine
215: ;;
1.26 pazsan 216: m68k)
1.34 anton 217: machine=m68k
1.32 pazsan 218: CFLAGS="$CFLAGS -fomit-frame-pointer"
219: if test "$host_os" = "nextstep3"
220: then
1.87 pazsan 221: AC_LIBOBJ(termios)
1.32 pazsan 222: fi
1.26 pazsan 223: ;;
1.1 anton 224: mips*)
1.34 anton 225: machine=mips
1.92 anton 226: #dynamic native code has the following problems on MIPS:
227: #
228: #1) J/JAL seems relocatable, but is are only
229: #relocatable within a 256MB-segment. While we try to
230: #get the linker to arrange this, there is no guarantee
231: #that this will succeed (and if the user uses a lot of
232: #memory, it is likely to fail).
233: #
234: #2) The way we generate dynamic native code may
235: #violate MIPS architectural restrictions (in
236: #particular, the delay slots of LW, MFLO, etc.)
237: #
238: #Therefore we disable dynamic native code by default:
1.136 anton 239: if test -z $no_dynamic_default; then
240: no_dynamic_default=1
241: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
242: fi
1.1 anton 243: ;;
1.9 pazsan 244: alpha*)
1.34 anton 245: machine=alpha
1.58 anton 246: #full IEEE FP support for more uniformity across platforms:
247: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 248: ;;
1.69 anton 249: power*|rs6000)
1.34 anton 250: machine=power
1.46 anton 251: $srcdir/mkinstalldirs arch/power
1.138 anton 252: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103 anton 253: #long long is broken on (at least) gcc-2.95.* for PPC
1.165 anton 254: test x$ac_cv_sizeof_long_long = x &&
255: ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
256: ac_cv_sizeof_long_long=0
1.31 anton 257: ;;
1.1 anton 258: *)
1.92 anton 259: AC_MSG_WARN([Using a generic machine description])
260: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
261: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 262: machine=generic
1.97 anton 263: #I-cache flushing would be needed for dynamic code generation
1.136 anton 264: if test -z $no_dynamic_default; then
265: no_dynamic_default=1
266: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
267: fi
1.1 anton 268: esac
1.10 anton 269: AC_SUBST(host)
1.151 anton 270:
271: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
272: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
273: [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146 pazsan 274:
1.173 anton 275: test x$GCC_PR15242_WORKAROUND = x ||
276: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
277: [force (1) or forbid (0) use of a workaround for a gcc performance bug])
278:
279: dnl AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
280: dnl generation on gccs affected by PR15242])
281:
282:
1.146 pazsan 283: if test "${enable_force_ll+set}" = set; then
284: ac_includes_default="$ac_includes_default
285: #include \"arch/generic/128bit.h\""
286: fi
1.103 anton 287:
288: dnl the following macro produces a warning with autoconf-2.1
289: AC_CHECK_SIZEOF(char *)
290: case "$ac_cv_sizeof_char_p" in
291: 2)
292: wordsize=16
293: ;;
294: 4)
295: wordsize=32
296: ;;
297: 8)
298: wordsize=64
299: ;;
300: esac
301:
302: AC_CHECK_SIZEOF(char)
303: AC_CHECK_SIZEOF(short)
304: AC_CHECK_SIZEOF(int)
305: AC_CHECK_SIZEOF(long)
306: AC_CHECK_SIZEOF(long long)
307: AC_CHECK_SIZEOF(intptr_t)
308: AC_CHECK_SIZEOF(int128_t)
1.144 pazsan 309: AC_CHECK_SIZEOF(uint128_t)
1.103 anton 310:
311: AC_MSG_CHECKING([for a C type for cells])
312: ac_cv_int_type_cell=none
313: case "$ac_cv_sizeof_char_p" in
314: $ac_cv_sizeof_int)
315: ac_cv_int_type_cell=int
316: ;;
317: $ac_cv_sizeof_short)
318: ac_cv_int_type_cell=short
319: ;;
320: $ac_cv_sizeof_char)
321: ac_cv_int_type_cell=char
322: ;;
323: $ac_cv_sizeof_long)
324: ac_cv_int_type_cell=long
325: ;;
326: $ac_cv_sizeof_long_long)
327: ac_cv_int_type_cell="long long"
328: ;;
329: $ac_cv_sizeof_intptr_t)
330: ac_cv_int_type_cell="intptr_t"
331: ;;
332: $ac_cv_sizeof_int128_t)
333: ac_cv_int_type_cell="int128_t"
334: ;;
335: esac
336: AC_MSG_RESULT($ac_cv_int_type_cell)
337: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
338:
1.153 pazsan 339: AC_MSG_CHECKING([for a C type for wydes])
340: ac_cv_wyde_type_cell=none
341: case 2 in
342: $ac_cv_sizeof_int)
343: ac_cv_wyde_type_cell=int
344: ;;
345: $ac_cv_sizeof_short)
346: ac_cv_wyde_type_cell=short
347: ;;
348: $ac_cv_sizeof_char)
349: ac_cv_wyde_type_cell=char
350: ;;
351: $ac_cv_sizeof_long)
352: ac_cv_wyde_type_cell=long
353: ;;
354: $ac_cv_sizeof_long_long)
355: ac_cv_wyde_type_cell="long long"
356: ;;
357: $ac_cv_sizeof_intptr_t)
358: ac_cv_wyde_type_cell="intptr_t"
359: ;;
360: $ac_cv_sizeof_int128_t)
361: ac_cv_wyde_type_cell="int128_t"
362: ;;
363: esac
364: AC_MSG_RESULT($ac_cv_wyde_type_cell)
365: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
366:
367: AC_MSG_CHECKING([for a C type for tetrabytes])
368: ac_cv_tetrabyte_type_cell=none
369: case 4 in
370: $ac_cv_sizeof_int)
371: ac_cv_tetrabyte_type_cell=int
372: ;;
373: $ac_cv_sizeof_short)
374: ac_cv_tetrabyte_type_cell=short
375: ;;
376: $ac_cv_sizeof_char)
377: ac_cv_tetrabyte_type_cell=char
378: ;;
379: $ac_cv_sizeof_long)
380: ac_cv_tetrabyte_type_cell=long
381: ;;
382: $ac_cv_sizeof_long_long)
383: ac_cv_tetrabyte_type_cell="long long"
384: ;;
385: $ac_cv_sizeof_intptr_t)
386: ac_cv_tetrabyte_type_cell="intptr_t"
387: ;;
388: $ac_cv_sizeof_int128_t)
389: ac_cv_tetrabyte_type_cell="int128_t"
390: ;;
391: esac
392: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
393: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
394:
1.103 anton 395: AC_MSG_CHECKING([for a C type for double-cells])
396: ac_cv_int_type_double_cell=none
397: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
398: $ac_cv_sizeof_short)
399: ac_cv_int_type_double_cell=short
400: ;;
401: $ac_cv_sizeof_int)
402: ac_cv_int_type_double_cell=int
403: ;;
404: $ac_cv_sizeof_long)
405: ac_cv_int_type_double_cell=long
406: ;;
407: $ac_cv_sizeof_long_long)
408: ac_cv_int_type_double_cell="long long"
409: ;;
410: $ac_cv_sizeof_intptr_t)
411: ac_cv_int_type_double_cell="intptr_t"
412: ;;
413: $ac_cv_sizeof_int128_t)
414: ac_cv_int_type_double_cell="int128_t"
415: ;;
416: esac
417: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144 pazsan 418:
419: AC_MSG_CHECKING([for a C type for unsigned double-cells])
420: ac_cv_int_type_double_ucell=none
421: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
422: $ac_cv_sizeof_short)
423: ac_cv_int_type_double_ucell="unsigned short"
424: ;;
425: $ac_cv_sizeof_int)
426: ac_cv_int_type_double_ucell="unsigned int"
427: ;;
428: $ac_cv_sizeof_long)
429: ac_cv_int_type_double_ucell="unsigned long"
430: ;;
431: $ac_cv_sizeof_long_long)
432: ac_cv_int_type_double_ucell="unsigned long long"
433: ;;
434: $ac_cv_sizeof_intptr_t)
435: ac_cv_int_type_double_ucell="unsigned intptr_t"
436: ;;
437: $ac_cv_sizeof_uint128_t)
438: ac_cv_int_type_double_ucell="uint128_t"
439: ;;
440: esac
441: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
442:
443: if test "$ac_cv_int_type_double_cell" = none || \
444: test "$ac_cv_int_type_double_ucell" = none
445: then
1.103 anton 446: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
447: AC_LIBOBJ(dblsub)
448: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
449: else
450: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144 pazsan 451: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.103 anton 452: fi
453:
454: AC_TYPE_OFF_T
455: AC_CHECK_SIZEOF(off_t)
456: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
457: ac_small_off_t=$?
458: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1 anton 459:
1.109 anton 460: ENGINE_FLAGS=
461: AC_SUBST(ENGINE_FLAGS)
462:
463: # Try if GCC understands -fno-gcse
464:
465: AC_MSG_CHECKING([if $CC understands -fno-gcse])
466: CFLAGS_1="$CFLAGS"
467: CFLAGS="$CFLAGS -fno-gcse"
468: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
469: CFLAGS="$CFLAGS_1"
470: AC_MSG_RESULT($ac_nogcse)
471:
472: # Try if GCC understands -fno-strict-aliasing
473: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
474: CFLAGS_1="$CFLAGS"
475: CFLAGS="$CFLAGS -fno-strict-aliasing"
476: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
477: CFLAGS="$CFLAGS_1"
478: AC_MSG_RESULT($ac_nostrictaliasing)
479:
1.123 anton 480: # Try if GCC understands -fno-crossjumping
481: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88 pazsan 482: CFLAGS_1="$CFLAGS"
1.123 anton 483: CFLAGS="$CFLAGS -fno-crossjumping"
1.125 anton 484: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109 anton 485: CFLAGS="$CFLAGS_1"
1.124 pazsan 486: AC_MSG_RESULT($ac_nocrossjumping)
1.88 pazsan 487:
1.137 pazsan 488: # Try if GCC understands -fno-reorder-blocks
489: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
490: CFLAGS_1="$CFLAGS"
491: CFLAGS="$CFLAGS -fno-reorder-blocks"
492: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
493: CFLAGS="$CFLAGS_1"
494: AC_MSG_RESULT($ac_noreorder_blocks)
495:
1.130 anton 496: # Try if GCC understands __attribute__((unused))
497: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
498: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
499: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
500: AC_MSG_RESULT($MAYBE_UNUSED)
501:
1.66 anton 502: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 503: AC_SUBST(asm_fs)
504:
1.66 anton 505: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 506: AC_SUBST(disasm_fs)
507:
1.116 anton 508: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114 anton 509:
1.39 pazsan 510: case "$host_os" in
1.157 pazsan 511: *win32*)
512: # !!!FIXME!!! problems with cygwin and ';' as path separator
1.108 anton 513: DIRSEP="\\\\"
1.127 anton 514: PATHSEP=";"
1.142 anton 515: #we want the builtins of command.com/cmd.exe and its
516: # handling of .com files.
517: #$COMSPEC contains the name of the Windows shell;
518: # the ./ is there, because the bash does not recognize
519: # absolute DOS filenames
520: DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39 pazsan 521: ;;
1.97 anton 522: *darwin*)
523: #Darwin uses some funny preprocessor by default; eliminate it:
1.127 anton 524: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120 anton 525: CFLAGS="$CFLAGS -no-cpp-precomp"
1.98 anton 526: DIRSEP="/"
1.127 anton 527: PATHSEP=":"
1.141 anton 528: DEFAULTSYSTEMPREFIX=""
1.98 anton 529: ;;
1.39 pazsan 530: *)
1.88 pazsan 531: DIRSEP="/"
1.127 anton 532: PATHSEP=":"
1.141 anton 533: DEFAULTSYSTEMPREFIX=""
1.39 pazsan 534: ;;
535: esac
1.88 pazsan 536: AC_SUBST(DIRSEP)
1.89 pazsan 537: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127 anton 538: AC_SUBST(PATHSEP)
539: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141 anton 540: AC_SUBST(DEFAULTSYSTEMPREFIX)
541: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.39 pazsan 542:
1.170 anton 543: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
1.172 anton 544: #This magic incantation seems to be completely undocumented.
545: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
1.170 anton 546:
1.1 anton 547: dnl Now a little support for DOS/DJGCC
1.30 pazsan 548: AC_SUBST(GFORTH_EXE)
1.172 anton 549: GFORTH_EXE=""
1.48 anton 550: AC_SUBST(GFORTHFAST_EXE)
1.172 anton 551: GFORTHFAST_EXE=""
1.83 anton 552: AC_SUBST(GFORTHITC_EXE)
553: GFORTHITC_EXE=""
1.30 pazsan 554: AC_SUBST(GFORTHDITC_EXE)
555: GFORTHDITC_EXE=""
1.27 anton 556:
557: AC_SUBST(FORTHSIZES)
1.24 anton 558:
1.104 anton 559: dnl if test "$PEEPHOLE" = "yes"
560: dnl then
561: dnl PEEPHOLEFLAG="true"
562: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
563: dnl else
564: dnl PEEPHOLEFLAG="false"
565: dnl fi
566: PEEPHOLEFLAG="true"
1.79 pazsan 567: AC_SUBST(PEEPHOLEFLAG)
568:
1.1 anton 569: dnl copy commands for systems that don't have links
1.29 pazsan 570: AC_SUBST(LINK_KERNL)
571: LINK_KERNL=""
1.1 anton 572:
573: #if test $host_os=dos
574: #then
575: # echo Configuring for DOS!!!
576: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 577: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 578: #fi
579:
580: dnl the following macro produces a warning with autoconf-2.1
581: AC_C_BIGENDIAN
1.23 pazsan 582: AC_SUBST(KERNEL)
1.1 anton 583: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
584: if test $ac_cv_c_bigendian = yes; then
585: bytesex=b
1.23 pazsan 586: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 587: else
588: bytesex=l
1.23 pazsan 589: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 590: fi
591:
1.91 anton 592: #check how to do asm(".skip 16")
1.169 anton 593: #echo "CFLAGS=$CFLAGS"
594: #echo "ac_link=$ac_link"
1.92 anton 595: AC_MSG_CHECKING([if and how we can waste code space])
1.136 anton 596: if test -z "$skipcode"; then
1.148 anton 597: skipcode=no
598: CFLAGS_1="$CFLAGS"
599: CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136 anton 600: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
601: do
1.91 anton 602: AC_TRY_RUN(
1.136 anton 603: [int foo(int,int,int);
1.91 anton 604: main()
605: {
1.136 anton 606: exit(foo(0,0,0)!=16);
1.91 anton 607: }
1.136 anton 608: int foo(int x, int y, int z)
1.91 anton 609: {
1.136 anton 610: static void *labels[]={&&label1, &&label2};
1.91 anton 611: if (x) {
1.136 anton 612: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91 anton 613: label1:
1.148 anton 614: asm("$i"); /* or ".space 16" or somesuch */
1.136 anton 615: label2: ;
616: }
617: {
618: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
619: return labels[1]-labels[0];
1.91 anton 620: }
1.136 anton 621: }]
1.92 anton 622: ,skipcode=$i; break
623: ,,)
1.136 anton 624: done
1.148 anton 625: CFLAGS=$CFLAGS_1
1.136 anton 626: fi
1.92 anton 627: AC_MSG_RESULT($skipcode)
628: if test "$skipcode" = no
629: then
1.136 anton 630: if test -z $no_dynamic_default; then
631: no_dynamic_default=1
632: AC_MSG_WARN(Disabling default dynamic native code generation)
633: fi
1.92 anton 634: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
635: else
636: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
637: fi
1.91 anton 638:
1.174 ! anton 639: AC_MSG_CHECKING([if and how we can do comments in asm statements])
! 640: #the point here is to get asm statements that look different to
! 641: #gcc's "optimizer"
! 642: if test -z "$asmcomment"; then
! 643: asmcomment=no
! 644: CFLAGS_1="$CFLAGS"
! 645: CFLAGS="$CFLAGS $ENGINE_FLAGS"
! 646: for i in '"# "' '"! "'; do
! 647: AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
! 648: done
! 649: CFLAGS=$CFLAGS_1
! 650: fi
! 651: AC_MSG_RESULT($asmcomment)
! 652: if test "$asmcomment" != no
! 653: then
! 654: AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
! 655: fi
! 656:
1.136 anton 657: test "$no_dynamic_default" || no_dynamic_default=0
1.92 anton 658: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 659:
1.1 anton 660: dnl Checks for programs.
661: AC_PROG_LN_S
1.95 anton 662: AC_PROG_INSTALL
1.163 pazsan 663: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
1.1 anton 664:
665: dnl Checks for library functions
1.2 anton 666: dnl This check is just for making later checks link with libm.
667: dnl using sin here is no good idea since it is built-into gcc and typechecked
668: AC_CHECK_LIB(m,asin)
1.31 anton 669: AC_CHECK_LIB(dl,dlopen)
1.152 pazsan 670: dnl check for libffi 2.x
671: AC_CHECK_LIB(ffi,ffi_call)
672: if test $ac_cv_lib_ffi_ffi_call = yes
673: then
674: LIBFFIFLAG="true"
675: FFCALLFLAG="false"
676: OLDCALLFLAG="false"
677: AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
678: else
1.124 pazsan 679: dnl check for ffcall libraries
680: dnl unfortunately, these four calls are separated out into a library each.
681: AC_CHECK_LIB(avcall,__builtin_avcall)
682: AC_CHECK_LIB(callback,__vacall_r)
683: AC_CHECK_LIB(vacall,vacall)
684: AC_CHECK_LIB(trampoline,alloc_trampoline)
1.152 pazsan 685: LIBFFIFLAG="false"
1.125 anton 686: FFCALLFLAG="false"
1.129 pazsan 687: OLDCALLFLAG="true"
688: 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])
689: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
1.152 pazsan 690: fi
691: AC_SUBST(LIBFFIFLAG)
1.125 anton 692: AC_SUBST(FFCALLFLAG)
1.129 pazsan 693: AC_SUBST(OLDCALLFLAG)
1.32 pazsan 694: if test "$host_os" != "nextstep3"
695: then
696: AC_FUNC_MEMCMP
697: fi
1.25 pazsan 698: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97 anton 699: AC_FUNC_FSEEKO
700: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
1.111 anton 701: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19 anton 702: AC_DECL_SYS_SIGLIST
1.138 anton 703: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90 anton 704: AC_CHECK_FUNCS(expm1 log1p)
705: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 706: dnl No check for select, because our replacement is no good under
707: dnl anything but DOS
1.62 anton 708: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 709: AC_FUNC_FNMATCH
1.87 pazsan 710: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 711: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 712: AM_PATH_LISPDIR
1.1 anton 713:
1.23 pazsan 714: kernel_fi=kernl${wordsize}${bytesex}.fi
715: AC_SUBST(kernel_fi)
1.50 jwilke 716:
1.76 anton 717: #this breaks bindists
718: #dnl replace srource directory by absolute value
719: #if test $srcdir = "."; then srcdir=`pwd`
720: #fi
1.8 anton 721:
1.34 anton 722: AC_SUBST(machine)
1.95 anton 723: AC_CONFIG_FILES([
1.31 anton 724: Makefile
1.45 pazsan 725: Makedist
1.43 anton 726: gforthmi
1.80 anton 727: vmgen
1.79 pazsan 728: machpc.fs
1.159 pazsan 729: envos.fs
1.35 anton 730: engine/Makefile
1.161 pazsan 731: doc/version.texi
732: build-ec ])
1.95 anton 733: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43 anton 734: chmod +x gforthmi
1.80 anton 735: chmod +x vmgen
1.162 pazsan 736: chmod +x build-ec
1.95 anton 737: test -d kernel||mkdir kernel]],[[]])
738: AC_OUTPUT
1.44 anton 739:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>