Annotation of gforth/configure.in, revision 1.188
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
1.188 ! anton 24: AC_INIT([gforth],[0.6.9-20070604],[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!
1.187 anton 29: UPDATED="June 02, 2007"
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="$withval")
88:
1.185 pazsan 89: GCC_LD="\$(GCC)"
90: EC_MODE="false"
91: EC=""
92: engine2="engine2.o"
93: engine_fast2="engine-fast2.o"
94: no_dynamic=""
95: image_i=""
96: signals_o="io.o signals.o"
97:
1.182 pazsan 98: AC_ARG_WITH(ec,
99: AC_HELP_STRING([--with-ec=<arch>],
1.168 pazsan 100: [ Build gforth for systems without OS.]),
1.182 pazsan 101: [if test "$withval" = "no"; then
102: echo "defining hosted system"
103: else
104: echo "defining standalone system (${withval})"
1.168 pazsan 105: AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
1.167 pazsan 106: EC_MODE="true"
1.178 pazsan 107: EC="-ec"
108: engine2=""
109: engine_fast2=""
110: no_dynamic="-DNO_DYNAMIC"
111: image_i="image.i"
1.182 pazsan 112: if test "$withval" != "yes"; then
113: signals_o="io-${withval}.o"
114: else
115: signals_o="io.o"
116: fi
1.183 pazsan 117: GCC_PATH=$(which $CC)
118: LIB_PATH=${GCC_PATH%/*/*}
119: GCC_LD="\$(LD)"
1.184 pazsan 120: platform=${withval}
1.182 pazsan 121: fi])
1.167 pazsan 122:
1.104 anton 123: #variables mentioned in INSTALL
1.123 anton 124: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
1.104 anton 125: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
1.151 anton 126: 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 127: 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)])
128:
1.104 anton 129: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
1.183 pazsan 130: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
1.104 anton 131: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
132: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
133: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
134: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
135: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
136: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
137: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
1.144 pazsan 138: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
1.123 anton 139: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
140: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
1.166 anton 141: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
1.174 anton 142: AC_ARG_VAR(asmcomment, [assembler comment start string])
1.175 anton 143: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
1.82 anton 144:
1.96 anton 145: #set up feature test macros, so the tests get them right:
146: # turn on all POSIX, SUSv3, and GNU features if available
1.97 anton 147: AC_GNU_SOURCE
148: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
149:
150: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
151: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
152: dnl but not for _XOPEN_SOURCE)
153: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
154: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
155: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
1.96 anton 156: # turn on large file support with 64-bit off_t where available
1.105 anton 157: AC_SYS_LARGEFILE
158: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
159: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
1.96 anton 160:
1.82 anton 161: #currently we force direct threading this way. Eventually we should
162: #setup in the arch and engine files right
1.16 anton 163:
1.15 pazsan 164: AC_PROG_CC
165:
1.92 anton 166: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
1.9 pazsan 167:
1.15 pazsan 168: AC_SUBST(CC)
1.183 pazsan 169: AC_SUBST(GCC_LD)
1.9 pazsan 170: AC_SUBST(DEBUGFLAG)
1.178 pazsan 171: AC_SUBST(EC)
1.167 pazsan 172: AC_SUBST(EC_MODE)
1.178 pazsan 173: AC_SUBST(engine2)
174: AC_SUBST(engine_fast2)
175: AC_SUBST(no_dynamic)
176: AC_SUBST(image_i)
1.179 pazsan 177: AC_SUBST(signals_o)
1.7 anton 178:
1.174 anton 179: #this is used to disable some (not generally essential) part of the
180: #Makefile that some makes don't grok. It would be better to test for
181: #this specific Makefile feature than the make version.
1.128 pazsan 182: AC_MSG_CHECKING(make type)
1.174 anton 183: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
1.128 pazsan 184: GNUMAKE='#'
185: test "$make_type" = "GNU Make" && GNUMAKE=''
186: AC_MSG_RESULT($make_type)
187: AC_SUBST(GNUMAKE)
188:
1.50 jwilke 189: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
190: OLDLDFLAGS=$LDFLAGS
191: LDFLAGS="$LDFLAGS -export-dynamic"
1.69 anton 192: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
193: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
194: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
1.50 jwilke 195: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
196: AC_MSG_RESULT($ac_export_dynamic)
197:
1.1 anton 198: #terminology is a bit unusual here: The host is the system on which
199: #gforth will run; the system on which configure will run is the `build'
200: AC_CANONICAL_HOST
201: case "$host_cpu" in
1.136 anton 202: arm*)
203: machine=arm
204: CFLAGS="$CFLAGS -fomit-frame-pointer"
1.184 pazsan 205: if test x$platform = xnxt; then
1.183 pazsan 206: CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
207: fi
1.175 anton 208: if test -z $arm_cacheflush; then
1.136 anton 209: no_dynamic_default=1
1.175 anton 210: arm_cacheflush=arch/arm/cacheflush0
1.136 anton 211: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
212: fi
1.175 anton 213: AC_LIBSOURCES([../arch/arm/cacheflush0, ../arch/arm/cacheflush1, ../arch/arm/cacheflush2])
214: AC_LIBOBJ(../$arm_cacheflush)
1.177 anton 215: #longer skipcodes lead to problems on ARM, and it uses
216: #only 4-byte alignment anyway
217: test "$skipcode" || skipcode="nop"
1.136 anton 218: ;;
1.1 anton 219: hppa*)
1.34 anton 220: machine=hppa
1.46 anton 221: $srcdir/mkinstalldirs arch/hppa
1.87 pazsan 222: AC_LIBOBJ(../arch/hppa/cache)
1.134 anton 223: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
224: LDFLAGS="$LDFLAGS -Xlinker -N"
1.47 anton 225: LIBS="$LIBS -L/lib/pa1.1/"
1.1 anton 226: ;;
227: sparc*)
1.34 anton 228: machine=sparc
1.1 anton 229: ;;
1.31 anton 230: i386)
1.34 anton 231: machine=386
1.16 anton 232: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.31 anton 233: ;;
234: i486)
1.34 anton 235: machine=386
1.31 anton 236: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
237: ;;
1.77 anton 238: i*86)
1.34 anton 239: machine=386
1.55 anton 240: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
1.56 pazsan 241: CFLAGS_1="$CFLAGS"
1.87 pazsan 242: CFLAGS="$CFLAGS -march=pentium"
1.56 pazsan 243: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
1.1 anton 244: ;;
1.133 anton 245: x86_64)
246: machine=amd64
247: ;;
1.136 anton 248: ia64*)
249: machine=ia64
250: AC_LIBOBJ(../arch/ia64/flush_icache_block)
251: test "$skipcode" || skipcode="nop.i 0"
252: #".skip 16" passes the test below,
253: # but gives an assembler error in engine
254: ;;
1.26 pazsan 255: m68k)
1.34 anton 256: machine=m68k
1.32 pazsan 257: CFLAGS="$CFLAGS -fomit-frame-pointer"
258: if test "$host_os" = "nextstep3"
259: then
1.87 pazsan 260: AC_LIBOBJ(termios)
1.32 pazsan 261: fi
1.26 pazsan 262: ;;
1.1 anton 263: mips*)
1.34 anton 264: machine=mips
1.92 anton 265: #dynamic native code has the following problems on MIPS:
266: #
267: #1) J/JAL seems relocatable, but is are only
268: #relocatable within a 256MB-segment. While we try to
269: #get the linker to arrange this, there is no guarantee
270: #that this will succeed (and if the user uses a lot of
271: #memory, it is likely to fail).
272: #
273: #2) The way we generate dynamic native code may
274: #violate MIPS architectural restrictions (in
275: #particular, the delay slots of LW, MFLO, etc.)
276: #
277: #Therefore we disable dynamic native code by default:
1.136 anton 278: if test -z $no_dynamic_default; then
279: no_dynamic_default=1
280: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
281: fi
1.1 anton 282: ;;
1.9 pazsan 283: alpha*)
1.34 anton 284: machine=alpha
1.58 anton 285: #full IEEE FP support for more uniformity across platforms:
286: CFLAGS="$CFLAGS -mieee"
1.9 pazsan 287: ;;
1.69 anton 288: power*|rs6000)
1.34 anton 289: machine=power
1.46 anton 290: $srcdir/mkinstalldirs arch/power
1.138 anton 291: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
1.103 anton 292: #long long is broken on (at least) gcc-2.95.* for PPC
1.165 anton 293: test x$ac_cv_sizeof_long_long = x &&
294: ($CC -v 2>&1 |grep -q 'gcc version 2.95') &&
295: ac_cv_sizeof_long_long=0
1.31 anton 296: ;;
1.1 anton 297: *)
1.92 anton 298: AC_MSG_WARN([Using a generic machine description])
299: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
300: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
1.34 anton 301: machine=generic
1.97 anton 302: #I-cache flushing would be needed for dynamic code generation
1.136 anton 303: if test -z $no_dynamic_default; then
304: no_dynamic_default=1
305: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
306: fi
1.1 anton 307: esac
1.10 anton 308: AC_SUBST(host)
1.151 anton 309:
1.184 pazsan 310: MAKEINC=""
311:
312: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
1.183 pazsan 313: if test x$EC_MODE = xtrue
314: then
1.184 pazsan 315: echo "Check for arch/$machine/$platform/gforth.ld"
316: if test -f arch/$machine/$platform/gforth.ld
1.183 pazsan 317: then
1.184 pazsan 318: LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
319: if test x$platform = xnxt; then
1.183 pazsan 320: LIBS="$LIB_PATH/lib/gcc/arm-elf/$($CC --version | grep GCC | cut -d' ' -f3)/interwork/libgcc.a $LIB_PATH/arm-elf/lib/interwork/libc.a $LIBS"
321: fi
322: fi
1.184 pazsan 323: if test -f arch/$machine/$platform/make.inc
324: then
325: MAKEINC="include ../arch/$machine/$platform/make.inc"
326: fi
1.183 pazsan 327: fi
1.184 pazsan 328: AC_SUBST(MAKEINC)
1.183 pazsan 329:
1.151 anton 330: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
331: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
332: [number of registers in the default stack cache state for gforth-fast and gforth-native])
1.146 pazsan 333:
1.173 anton 334: test x$GCC_PR15242_WORKAROUND = x ||
335: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
336: [force (1) or forbid (0) use of a workaround for a gcc performance bug])
337:
338: dnl AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code
339: dnl generation on gccs affected by PR15242])
340:
341:
1.146 pazsan 342: if test "${enable_force_ll+set}" = set; then
343: ac_includes_default="$ac_includes_default
344: #include \"arch/generic/128bit.h\""
345: fi
1.103 anton 346:
347: dnl the following macro produces a warning with autoconf-2.1
348: AC_CHECK_SIZEOF(char *)
349: case "$ac_cv_sizeof_char_p" in
350: 2)
351: wordsize=16
352: ;;
353: 4)
354: wordsize=32
355: ;;
356: 8)
357: wordsize=64
358: ;;
359: esac
360:
1.183 pazsan 361: AC_CHECK_SIZEOF(void *)
362: case "$ac_cv_sizeof_void_p" in
363: 2)
364: vwordsize=16
365: ;;
366: 4)
367: vwordsize=32
368: ;;
369: 8)
370: vwordsize=64
371: ;;
372: esac
373:
1.103 anton 374: AC_CHECK_SIZEOF(char)
375: AC_CHECK_SIZEOF(short)
376: AC_CHECK_SIZEOF(int)
377: AC_CHECK_SIZEOF(long)
378: AC_CHECK_SIZEOF(long long)
379: AC_CHECK_SIZEOF(intptr_t)
380: AC_CHECK_SIZEOF(int128_t)
1.144 pazsan 381: AC_CHECK_SIZEOF(uint128_t)
1.103 anton 382:
383: AC_MSG_CHECKING([for a C type for cells])
384: ac_cv_int_type_cell=none
385: case "$ac_cv_sizeof_char_p" in
386: $ac_cv_sizeof_int)
387: ac_cv_int_type_cell=int
388: ;;
389: $ac_cv_sizeof_short)
390: ac_cv_int_type_cell=short
391: ;;
392: $ac_cv_sizeof_char)
393: ac_cv_int_type_cell=char
394: ;;
395: $ac_cv_sizeof_long)
396: ac_cv_int_type_cell=long
397: ;;
398: $ac_cv_sizeof_long_long)
399: ac_cv_int_type_cell="long long"
400: ;;
401: $ac_cv_sizeof_intptr_t)
402: ac_cv_int_type_cell="intptr_t"
403: ;;
404: $ac_cv_sizeof_int128_t)
405: ac_cv_int_type_cell="int128_t"
406: ;;
407: esac
408: AC_MSG_RESULT($ac_cv_int_type_cell)
409: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
410:
1.153 pazsan 411: AC_MSG_CHECKING([for a C type for wydes])
412: ac_cv_wyde_type_cell=none
413: case 2 in
414: $ac_cv_sizeof_int)
415: ac_cv_wyde_type_cell=int
416: ;;
417: $ac_cv_sizeof_short)
418: ac_cv_wyde_type_cell=short
419: ;;
420: $ac_cv_sizeof_char)
421: ac_cv_wyde_type_cell=char
422: ;;
423: $ac_cv_sizeof_long)
424: ac_cv_wyde_type_cell=long
425: ;;
426: $ac_cv_sizeof_long_long)
427: ac_cv_wyde_type_cell="long long"
428: ;;
429: $ac_cv_sizeof_intptr_t)
430: ac_cv_wyde_type_cell="intptr_t"
431: ;;
432: $ac_cv_sizeof_int128_t)
433: ac_cv_wyde_type_cell="int128_t"
434: ;;
435: esac
436: AC_MSG_RESULT($ac_cv_wyde_type_cell)
437: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
438:
439: AC_MSG_CHECKING([for a C type for tetrabytes])
440: ac_cv_tetrabyte_type_cell=none
441: case 4 in
442: $ac_cv_sizeof_int)
443: ac_cv_tetrabyte_type_cell=int
444: ;;
445: $ac_cv_sizeof_short)
446: ac_cv_tetrabyte_type_cell=short
447: ;;
448: $ac_cv_sizeof_char)
449: ac_cv_tetrabyte_type_cell=char
450: ;;
451: $ac_cv_sizeof_long)
452: ac_cv_tetrabyte_type_cell=long
453: ;;
454: $ac_cv_sizeof_long_long)
455: ac_cv_tetrabyte_type_cell="long long"
456: ;;
457: $ac_cv_sizeof_intptr_t)
458: ac_cv_tetrabyte_type_cell="intptr_t"
459: ;;
460: $ac_cv_sizeof_int128_t)
461: ac_cv_tetrabyte_type_cell="int128_t"
462: ;;
463: esac
464: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
465: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
466:
1.103 anton 467: AC_MSG_CHECKING([for a C type for double-cells])
468: ac_cv_int_type_double_cell=none
469: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
470: $ac_cv_sizeof_short)
471: ac_cv_int_type_double_cell=short
472: ;;
473: $ac_cv_sizeof_int)
474: ac_cv_int_type_double_cell=int
475: ;;
476: $ac_cv_sizeof_long)
477: ac_cv_int_type_double_cell=long
478: ;;
479: $ac_cv_sizeof_long_long)
480: ac_cv_int_type_double_cell="long long"
481: ;;
482: $ac_cv_sizeof_intptr_t)
483: ac_cv_int_type_double_cell="intptr_t"
484: ;;
485: $ac_cv_sizeof_int128_t)
486: ac_cv_int_type_double_cell="int128_t"
487: ;;
488: esac
489: AC_MSG_RESULT($ac_cv_int_type_double_cell)
1.144 pazsan 490:
491: AC_MSG_CHECKING([for a C type for unsigned double-cells])
492: ac_cv_int_type_double_ucell=none
493: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
494: $ac_cv_sizeof_short)
495: ac_cv_int_type_double_ucell="unsigned short"
496: ;;
497: $ac_cv_sizeof_int)
498: ac_cv_int_type_double_ucell="unsigned int"
499: ;;
500: $ac_cv_sizeof_long)
501: ac_cv_int_type_double_ucell="unsigned long"
502: ;;
503: $ac_cv_sizeof_long_long)
504: ac_cv_int_type_double_ucell="unsigned long long"
505: ;;
506: $ac_cv_sizeof_intptr_t)
507: ac_cv_int_type_double_ucell="unsigned intptr_t"
508: ;;
509: $ac_cv_sizeof_uint128_t)
510: ac_cv_int_type_double_ucell="uint128_t"
511: ;;
512: esac
513: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
514:
515: if test "$ac_cv_int_type_double_cell" = none || \
516: test "$ac_cv_int_type_double_ucell" = none
517: then
1.103 anton 518: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
519: AC_LIBOBJ(dblsub)
520: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
521: else
522: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
1.144 pazsan 523: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
1.103 anton 524: fi
525:
526: AC_TYPE_OFF_T
527: AC_CHECK_SIZEOF(off_t)
528: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
529: ac_small_off_t=$?
530: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
1.1 anton 531:
1.109 anton 532: ENGINE_FLAGS=
533: AC_SUBST(ENGINE_FLAGS)
534:
535: # Try if GCC understands -fno-gcse
536:
537: AC_MSG_CHECKING([if $CC understands -fno-gcse])
538: CFLAGS_1="$CFLAGS"
539: CFLAGS="$CFLAGS -fno-gcse"
540: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
541: CFLAGS="$CFLAGS_1"
542: AC_MSG_RESULT($ac_nogcse)
543:
544: # Try if GCC understands -fno-strict-aliasing
545: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
546: CFLAGS_1="$CFLAGS"
547: CFLAGS="$CFLAGS -fno-strict-aliasing"
548: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
549: CFLAGS="$CFLAGS_1"
550: AC_MSG_RESULT($ac_nostrictaliasing)
551:
1.123 anton 552: # Try if GCC understands -fno-crossjumping
553: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
1.88 pazsan 554: CFLAGS_1="$CFLAGS"
1.123 anton 555: CFLAGS="$CFLAGS -fno-crossjumping"
1.125 anton 556: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
1.109 anton 557: CFLAGS="$CFLAGS_1"
1.124 pazsan 558: AC_MSG_RESULT($ac_nocrossjumping)
1.88 pazsan 559:
1.137 pazsan 560: # Try if GCC understands -fno-reorder-blocks
561: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
562: CFLAGS_1="$CFLAGS"
563: CFLAGS="$CFLAGS -fno-reorder-blocks"
564: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
565: CFLAGS="$CFLAGS_1"
566: AC_MSG_RESULT($ac_noreorder_blocks)
567:
1.130 anton 568: # Try if GCC understands __attribute__((unused))
569: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
570: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
571: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
572: AC_MSG_RESULT($MAYBE_UNUSED)
573:
1.66 anton 574: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
1.61 anton 575: AC_SUBST(asm_fs)
576:
1.66 anton 577: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
1.61 anton 578: AC_SUBST(disasm_fs)
579:
1.116 anton 580: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
1.114 anton 581:
1.39 pazsan 582: case "$host_os" in
1.157 pazsan 583: *win32*)
584: # !!!FIXME!!! problems with cygwin and ';' as path separator
1.108 anton 585: DIRSEP="\\\\"
1.127 anton 586: PATHSEP=";"
1.142 anton 587: #we want the builtins of command.com/cmd.exe and its
588: # handling of .com files.
589: #$COMSPEC contains the name of the Windows shell;
590: # the ./ is there, because the bash does not recognize
591: # absolute DOS filenames
592: DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
1.39 pazsan 593: ;;
1.97 anton 594: *darwin*)
595: #Darwin uses some funny preprocessor by default; eliminate it:
1.127 anton 596: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
1.120 anton 597: CFLAGS="$CFLAGS -no-cpp-precomp"
1.98 anton 598: DIRSEP="/"
1.127 anton 599: PATHSEP=":"
1.141 anton 600: DEFAULTSYSTEMPREFIX=""
1.98 anton 601: ;;
1.39 pazsan 602: *)
1.88 pazsan 603: DIRSEP="/"
1.127 anton 604: PATHSEP=":"
1.141 anton 605: DEFAULTSYSTEMPREFIX=""
1.39 pazsan 606: ;;
607: esac
1.88 pazsan 608: AC_SUBST(DIRSEP)
1.89 pazsan 609: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
1.127 anton 610: AC_SUBST(PATHSEP)
611: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
1.141 anton 612: AC_SUBST(DEFAULTSYSTEMPREFIX)
613: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
1.39 pazsan 614:
1.170 anton 615: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
1.172 anton 616: #This magic incantation seems to be completely undocumented.
617: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
1.170 anton 618:
1.1 anton 619: dnl Now a little support for DOS/DJGCC
1.30 pazsan 620: AC_SUBST(GFORTH_EXE)
1.172 anton 621: GFORTH_EXE=""
1.48 anton 622: AC_SUBST(GFORTHFAST_EXE)
1.172 anton 623: GFORTHFAST_EXE=""
1.83 anton 624: AC_SUBST(GFORTHITC_EXE)
625: GFORTHITC_EXE=""
1.30 pazsan 626: AC_SUBST(GFORTHDITC_EXE)
627: GFORTHDITC_EXE=""
1.27 anton 628:
629: AC_SUBST(FORTHSIZES)
1.24 anton 630:
1.104 anton 631: dnl if test "$PEEPHOLE" = "yes"
632: dnl then
633: dnl PEEPHOLEFLAG="true"
634: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
635: dnl else
636: dnl PEEPHOLEFLAG="false"
637: dnl fi
638: PEEPHOLEFLAG="true"
1.79 pazsan 639: AC_SUBST(PEEPHOLEFLAG)
640:
1.1 anton 641: dnl copy commands for systems that don't have links
1.29 pazsan 642: AC_SUBST(LINK_KERNL)
643: LINK_KERNL=""
1.1 anton 644:
645: #if test $host_os=dos
646: #then
647: # echo Configuring for DOS!!!
648: # MAKE_EXE="coff2exe gforth"
1.29 pazsan 649: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
1.1 anton 650: #fi
651:
652: dnl the following macro produces a warning with autoconf-2.1
653: AC_C_BIGENDIAN
1.23 pazsan 654: AC_SUBST(KERNEL)
1.1 anton 655: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
656: if test $ac_cv_c_bigendian = yes; then
657: bytesex=b
1.23 pazsan 658: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
1.1 anton 659: else
660: bytesex=l
1.23 pazsan 661: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
1.1 anton 662: fi
663:
1.91 anton 664: #check how to do asm(".skip 16")
1.169 anton 665: #echo "CFLAGS=$CFLAGS"
666: #echo "ac_link=$ac_link"
1.92 anton 667: AC_MSG_CHECKING([if and how we can waste code space])
1.136 anton 668: if test -z "$skipcode"; then
1.148 anton 669: skipcode=no
670: CFLAGS_1="$CFLAGS"
671: CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.136 anton 672: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
673: do
1.91 anton 674: AC_TRY_RUN(
1.136 anton 675: [int foo(int,int,int);
1.91 anton 676: main()
677: {
1.136 anton 678: exit(foo(0,0,0)!=16);
1.91 anton 679: }
1.136 anton 680: int foo(int x, int y, int z)
1.91 anton 681: {
1.136 anton 682: static void *labels[]={&&label1, &&label2};
1.91 anton 683: if (x) {
1.136 anton 684: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
1.91 anton 685: label1:
1.148 anton 686: asm("$i"); /* or ".space 16" or somesuch */
1.136 anton 687: label2: ;
688: }
689: {
690: if (y) goto *labels[z]; /* workaround for gcc PR12108 */
691: return labels[1]-labels[0];
1.91 anton 692: }
1.136 anton 693: }]
1.92 anton 694: ,skipcode=$i; break
695: ,,)
1.136 anton 696: done
1.148 anton 697: CFLAGS=$CFLAGS_1
1.136 anton 698: fi
1.92 anton 699: AC_MSG_RESULT($skipcode)
700: if test "$skipcode" = no
701: then
1.136 anton 702: if test -z $no_dynamic_default; then
703: no_dynamic_default=1
704: AC_MSG_WARN(Disabling default dynamic native code generation)
705: fi
1.92 anton 706: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
707: else
708: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
709: fi
1.91 anton 710:
1.174 anton 711: AC_MSG_CHECKING([if and how we can do comments in asm statements])
712: #the point here is to get asm statements that look different to
713: #gcc's "optimizer"
714: if test -z "$asmcomment"; then
715: asmcomment=no
716: CFLAGS_1="$CFLAGS"
717: CFLAGS="$CFLAGS $ENGINE_FLAGS"
1.176 anton 718: for i in '"# "' '"! "' '"; "'; do
1.174 anton 719: AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
720: done
721: CFLAGS=$CFLAGS_1
722: fi
723: AC_MSG_RESULT($asmcomment)
724: if test "$asmcomment" != no
725: then
726: AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
727: fi
728:
1.136 anton 729: test "$no_dynamic_default" || no_dynamic_default=0
1.92 anton 730: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
1.91 anton 731:
1.1 anton 732: dnl Checks for programs.
733: AC_PROG_LN_S
1.95 anton 734: AC_PROG_INSTALL
1.163 pazsan 735: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
1.1 anton 736:
737: dnl Checks for library functions
1.2 anton 738: dnl This check is just for making later checks link with libm.
739: dnl using sin here is no good idea since it is built-into gcc and typechecked
740: AC_CHECK_LIB(m,asin)
1.31 anton 741: AC_CHECK_LIB(dl,dlopen)
1.152 pazsan 742: dnl check for libffi 2.x
743: AC_CHECK_LIB(ffi,ffi_call)
744: if test $ac_cv_lib_ffi_ffi_call = yes
745: then
746: LIBFFIFLAG="true"
747: FFCALLFLAG="false"
748: OLDCALLFLAG="false"
749: AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0])
750: else
1.124 pazsan 751: dnl check for ffcall libraries
752: dnl unfortunately, these four calls are separated out into a library each.
753: AC_CHECK_LIB(avcall,__builtin_avcall)
754: AC_CHECK_LIB(callback,__vacall_r)
755: AC_CHECK_LIB(vacall,vacall)
756: AC_CHECK_LIB(trampoline,alloc_trampoline)
1.152 pazsan 757: LIBFFIFLAG="false"
1.125 anton 758: FFCALLFLAG="false"
1.129 pazsan 759: OLDCALLFLAG="true"
760: 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])
761: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
1.152 pazsan 762: fi
763: AC_SUBST(LIBFFIFLAG)
1.125 anton 764: AC_SUBST(FFCALLFLAG)
1.129 pazsan 765: AC_SUBST(OLDCALLFLAG)
1.32 pazsan 766: if test "$host_os" != "nextstep3"
767: then
768: AC_FUNC_MEMCMP
769: fi
1.25 pazsan 770: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
1.97 anton 771: AC_FUNC_FSEEKO
1.186 anton 772: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
1.111 anton 773: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
1.19 anton 774: AC_DECL_SYS_SIGLIST
1.138 anton 775: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
1.90 anton 776: AC_CHECK_FUNCS(expm1 log1p)
777: AC_REPLACE_FUNCS(rint ecvt)
1.1 anton 778: dnl No check for select, because our replacement is no good under
779: dnl anything but DOS
1.62 anton 780: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
1.63 anton 781: AC_FUNC_FNMATCH
1.87 pazsan 782: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
1.28 anton 783: AC_CHECK_FUNCS(mmap sysconf getpagesize)
1.34 anton 784: AM_PATH_LISPDIR
1.1 anton 785:
1.183 pazsan 786: kernel_fi=kernl${vwordsize}${bytesex}.fi
1.178 pazsan 787: include_fi=kernl${wordsize}${bytesex}${EC}.fi
1.23 pazsan 788: AC_SUBST(kernel_fi)
1.178 pazsan 789: AC_SUBST(include_fi)
1.50 jwilke 790:
1.76 anton 791: #this breaks bindists
792: #dnl replace srource directory by absolute value
793: #if test $srcdir = "."; then srcdir=`pwd`
794: #fi
1.8 anton 795:
1.188 ! anton 796: echo "version=$PACKAGE_VERSION"
! 797:
1.34 anton 798: AC_SUBST(machine)
1.95 anton 799: AC_CONFIG_FILES([
1.31 anton 800: Makefile
1.45 pazsan 801: Makedist
1.43 anton 802: gforthmi
1.80 anton 803: vmgen
1.79 pazsan 804: machpc.fs
1.159 pazsan 805: envos.fs
1.35 anton 806: engine/Makefile
1.188 ! anton 807: engine/libcc.h
1.161 pazsan 808: doc/version.texi
809: build-ec ])
1.95 anton 810: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
1.43 anton 811: chmod +x gforthmi
1.80 anton 812: chmod +x vmgen
1.162 pazsan 813: chmod +x build-ec
1.188 ! anton 814: test -d kernel||mkdir kernel
! 815: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
! 816: ln -s ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],[[PACKAGE_VERSION=$PACKAGE_VERSION]])
1.95 anton 817: AC_OUTPUT
1.44 anton 818:
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