gforth/configure.in - view

File: [gforth] / gforth / configure.in
Revision 1.235: download - view: text, annotated - select for diffs
Fri Aug 8 20:56:14 2008 UTC (15 years, 1 month ago) by anton
Branches: MAIN
CVS tags: HEAD

Updated Agenda
Now lib.fs selects libffi.fs or fflib.fs based on a configure test
compat/execute-parsing bugfix
fixed some documentation bugs (reported by Jakob Sievers)

1: dnl Process this file with autoconf to produce a configure script. 2: 3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008 Free Software Foundation, Inc. 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 3 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, see http://www.gnu.org/licenses/. 19: 20: 21: dnl We use some automake macros here, 22: dnl but don't use automake for creating Makefile.in 23: AC_INIT([gforth],[0.6.9-20080716],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth]) 24: AC_PREREQ(2.54) 25: #snapshots have numbers major.minor.release-YYYYMMDD 26: #note that lexicographic ordering must be heeded. 27: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1! 28: UPDATED="July 16, 2008" 29: AC_SUBST(UPDATED) 30: AC_CONFIG_HEADERS(engine/config.h) 31: 32: #remnants from having ltdl as convenience library 33: LTDLDEPS="" 34: LTDLINCL="" 35: LIBLTDL="" 36: LTDL_LDLIBS="" 37: AC_SUBST(LTDLDEPS) 38: AC_SUBST(LTDLINCL) 39: AC_SUBST(LIBLTDL) 40: AC_SUBST(LTDL_LDLIBS) 41: 42: #suppress the "-g -O2" default 43: test "$CFLAGS" || CFLAGS=-O2 44: 45: AC_ARG_ENABLE(force-cdiv, 46: AC_HELP_STRING([--enable-force-cdiv], 47: [ Use the native C division - symmetric - instead of 48: floored division (default disabled).]), 49: ,enable_force_cdiv=no) 50: test "$enable_force_cdiv" = "no"|| 51: AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance]) 52: 53: AC_SUBST(PROFEXES) 54: AC_SUBST(PROFOBJS) 55: AC_ARG_ENABLE(prof, 56: AC_HELP_STRING([--enable-prof], 57: [ Build gforth-prof, which outputs frequently occuring 58: sequences of primitives.]), 59: ,enable_prof=no) 60: if test "$enable_prof" != "no"; then 61: PROFEXES='gforth-prof$(OPT)$(EXE)'; PROFOBJS='engine-prof$(OPT).o main-prof$(OPT).o profile$(OPT).o' 62: fi 63: 64: AC_ARG_WITH(debug, 65: [ --with-debug specifies option -g to compile with debug info 66: --without-debug omits the -g switch and creates smaller images on 67: machines where "strip" has problems with gcc style 68: debugging informations.], 69: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi) 70: 71: GCC_LD="\$(GCC)" 72: EC_MODE="false" 73: EC="" 74: engine2='engine2$(OPT).o' 75: engine_fast2='engine-fast2$(OPT).o' 76: no_dynamic="" 77: image_i="" 78: signals_o="io.o signals.o" 79: 80: AC_ARG_WITH(ec, 81: AC_HELP_STRING([--with-ec=<arch>], 82: [ Build gforth for systems without OS.]), 83: [if test "$withval" = "no"; then 84: echo "defining hosted system" 85: else 86: echo "defining standalone system (${withval})" 87: AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS]) 88: EC_MODE="true" 89: EC="-ec" 90: engine2="" 91: engine_fast2="" 92: no_dynamic="-DNO_DYNAMIC" 93: image_i="image.i" 94: if test "$withval" != "yes"; then 95: signals_o="io-${withval}.o" 96: else 97: signals_o="io.o" 98: fi 99: GCC_PATH=$(which $CC) 100: LIB_PATH=${GCC_PATH%/*/*} 101: GCC_LD="\$(LD)" 102: platform=${withval} 103: fi]) 104: 105: #variables mentioned in INSTALL 106: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).]) 107: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).]) 108: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).]) 109: AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).]) 110: 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)]) 111: 112: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)]) 113: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)]) 114: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)]) 115: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)]) 116: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)]) 117: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)]) 118: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)]) 119: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)]) 120: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?]) 121: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default]) 122: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches]) 123: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code]) 124: AC_ARG_VAR(asmcomment, [assembler comment start string]) 125: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)]) 126: 127: #set up feature test macros, so the tests get them right: 128: # turn on all POSIX, SUSv3, and GNU features if available 129: AC_GNU_SOURCE 130: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro]) 131: 132: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular 133: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE, 134: dnl but not for _XOPEN_SOURCE) 135: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro]) 136: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro]) 137: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro]) 138: # turn on large file support with 64-bit off_t where available 139: AC_SYS_LARGEFILE 140: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro]) 141: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro]) 142: 143: #currently we force direct threading this way. Eventually we should 144: #setup in the arch and engine files right 145: 146: AC_PROG_CC 147: 148: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher) 149: 150: AC_MSG_CHECKING([whether to use two dispatches per conditional branch]) 151: test x$condbranch_opt = x && 152: if ($CC -v 2>&1 |grep -q 'gcc version 3'); then 153: condbranch_opt=0 154: else 155: condbranch_opt=1 156: fi 157: AC_MSG_RESULT($condbranch_opt) 158: AC_SUBST(condbranch_opt) 159: 160: AC_SUBST(CC) 161: AC_SUBST(GCC_LD) 162: AC_SUBST(DEBUGFLAG) 163: AC_SUBST(EC) 164: AC_SUBST(EC_MODE) 165: AC_SUBST(engine2) 166: AC_SUBST(engine_fast2) 167: AC_SUBST(no_dynamic) 168: AC_SUBST(image_i) 169: AC_SUBST(signals_o) 170: 171: #this is used to disable some (not generally essential) part of the 172: #Makefile that some makes don't grok. It would be better to test for 173: #this specific Makefile feature than the make version. 174: AC_MSG_CHECKING(make type) 175: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'` 176: GNUMAKE='#' 177: test "$make_type" = "GNU Make" && GNUMAKE='' 178: AC_MSG_RESULT($make_type) 179: AC_SUBST(GNUMAKE) 180: 181: AC_MSG_CHECKING([whether the linker accepts -export-dynamic]) 182: OLDLDFLAGS=$LDFLAGS 183: LDFLAGS="$LDFLAGS -export-dynamic" 184: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0 185: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no) 186: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no) 187: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS 188: AC_MSG_RESULT($ac_export_dynamic) 189: 190: #terminology is a bit unusual here: The host is the system on which 191: #gforth will run; the system on which configure will run is the `build' 192: AC_CANONICAL_HOST 193: case "$host_cpu" in 194: arm*) 195: machine=arm 196: CFLAGS="$CFLAGS -fomit-frame-pointer" 197: if test x$platform = xnxt; then 198: CFLAGS="$CFLAGS -mthumb -mthumb-interwork" 199: fi 200: if test -z $arm_cacheflush; then 201: case "$host_os" in 202: *linux*) 203: arm_cacheflush=arch/arm/cacheflush-linux 204: ;; 205: *) 206: no_dynamic_default=1 207: arm_cacheflush=arch/arm/cacheflush0 208: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) 209: ;; 210: esac 211: fi 212: AC_LIBSOURCES([../arch/arm/cacheflush0, dnl 213: ../arch/arm/cacheflush-linux]) 214: AC_LIBOBJ(../$arm_cacheflush) 215: #longer skipcodes lead to problems on ARM, and it uses 216: #only 4-byte alignment anyway 217: test "$skipcode" || skipcode="nop" 218: ;; 219: hppa*) 220: machine=hppa 221: $srcdir/mkinstalldirs arch/hppa 222: AC_LIBOBJ(../arch/hppa/cache) 223: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net> 224: LDFLAGS="$LDFLAGS -Xlinker -N" 225: LIBS="$LIBS -L/lib/pa1.1/" 226: ;; 227: sparc*) 228: machine=sparc 229: ;; 230: i386) 231: machine=386 232: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" 233: ;; 234: i486) 235: machine=386 236: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -m486" 237: ;; 238: i*86) 239: machine=386 240: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" 241: CFLAGS_1="$CFLAGS" 242: CFLAGS="$CFLAGS -march=pentium" 243: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486") 244: ;; 245: x86_64) 246: case $CC 247: in 248: *-m32*) 249: machine=386 250: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" 251: CFLAGS_1="$CFLAGS" 252: CFLAGS="$CFLAGS -march=athlon64" 253: ;; 254: *) 255: machine=amd64 256: ;; 257: esac 258: ;; 259: ia64*) 260: machine=ia64 261: AC_LIBOBJ(../arch/ia64/flush_icache_block) 262: test "$skipcode" || skipcode="nop.i 0" 263: #".skip 16" passes the test below, 264: # but gives an assembler error in engine 265: ;; 266: m68k) 267: machine=m68k 268: CFLAGS="$CFLAGS -fomit-frame-pointer" 269: if test "$host_os" = "nextstep3" 270: then 271: AC_LIBOBJ(termios) 272: fi 273: ;; 274: mips*) 275: machine=mips 276: #dynamic native code has the following problems on MIPS: 277: # 278: #1) J/JAL seems relocatable, but is are only 279: #relocatable within a 256MB-segment. While we try to 280: #get the linker to arrange this, there is no guarantee 281: #that this will succeed (and if the user uses a lot of 282: #memory, it is likely to fail). 283: # 284: #2) The way we generate dynamic native code may 285: #violate MIPS architectural restrictions (in 286: #particular, the delay slots of LW, MFLO, etc.) 287: # 288: #Therefore we disable dynamic native code by default: 289: if test -z $no_dynamic_default; then 290: no_dynamic_default=1 291: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)]) 292: fi 293: ;; 294: alpha*) 295: machine=alpha 296: #full IEEE FP support for more uniformity across platforms: 297: CFLAGS="$CFLAGS -mieee" 298: ;; 299: power*|rs6000) 300: machine=power 301: $srcdir/mkinstalldirs arch/power 302: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)]) 303: #long long is broken on (at least) gcc-2.95.* for PPC 304: test x$ac_cv_sizeof_long_long = x && 305: ($CC -v 2>&1 |grep -q 'gcc version 2.95') && 306: ac_cv_sizeof_long_long=0 307: #The only architecture with enough callee-saved registers 308: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3 309: #or use 2, hardly slower at run-time and starts up faster 310: ;; 311: *) 312: AC_MSG_WARN([Using a generic machine description]) 313: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)]) 314: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!]) 315: machine=generic 316: #I-cache flushing would be needed for dynamic code generation 317: if test -z $no_dynamic_default; then 318: no_dynamic_default=1 319: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) 320: fi 321: esac 322: AC_SUBST(host) 323: 324: MAKEINC="" 325: 326: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)" 327: if test x$EC_MODE = xtrue 328: then 329: echo "Check for arch/$machine/$platform/gforth.ld" 330: if test -f arch/$machine/$platform/gforth.ld 331: then 332: LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS" 333: if test x$platform = xnxt; then 334: 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 $LIBS" 335: fi 336: fi 337: if test -f arch/$machine/$platform/make.inc 338: then 339: MAKEINC="include ../arch/$machine/$platform/make.inc" 340: fi 341: fi 342: AC_SUBST(MAKEINC) 343: 344: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).]) 345: 346: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1 347: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS, 348: [number of registers in the maximum stack cache state for gforth-fast and gforth-native]) 349: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1 350: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST, 351: [number of registers in the default stack cache state for gforth-fast and gforth-native]) 352: 353: test x$GCC_PR15242_WORKAROUND = x || 354: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND, 355: [force (1) or forbid (0) use of a workaround for a gcc performance bug]) 356: 357: dnl the following macro produces a warning with autoconf-2.1 358: AC_CHECK_SIZEOF(char *) 359: case "$ac_cv_sizeof_char_p" in 360: 2) 361: wordsize=16 362: ;; 363: 4) 364: wordsize=32 365: ;; 366: 8) 367: wordsize=64 368: ;; 369: esac 370: 371: AC_CHECK_SIZEOF(void *) 372: case "$ac_cv_sizeof_void_p" in 373: 2) 374: vwordsize=16 375: ;; 376: 4) 377: vwordsize=32 378: ;; 379: 8) 380: vwordsize=64 381: ;; 382: esac 383: 384: AC_CHECK_SIZEOF(char) 385: AC_CHECK_SIZEOF(short) 386: AC_CHECK_SIZEOF(int) 387: AC_CHECK_SIZEOF(long) 388: AC_CHECK_SIZEOF(long long) 389: AC_CHECK_SIZEOF(intptr_t) 390: AC_CHECK_SIZEOF(int128_t) 391: AC_CHECK_SIZEOF(uint128_t) 392: 393: AC_MSG_CHECKING([for a C type for cells]) 394: ac_cv_int_type_cell=none 395: case "$ac_cv_sizeof_char_p" in 396: $ac_cv_sizeof_int) 397: ac_cv_int_type_cell=int 398: ;; 399: $ac_cv_sizeof_short) 400: ac_cv_int_type_cell=short 401: ;; 402: $ac_cv_sizeof_char) 403: ac_cv_int_type_cell=char 404: ;; 405: $ac_cv_sizeof_long) 406: ac_cv_int_type_cell=long 407: ;; 408: $ac_cv_sizeof_long_long) 409: ac_cv_int_type_cell="long long" 410: ;; 411: $ac_cv_sizeof_intptr_t) 412: ac_cv_int_type_cell="intptr_t" 413: ;; 414: esac 415: AC_MSG_RESULT($ac_cv_int_type_cell) 416: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer]) 417: 418: AC_MSG_CHECKING([for a C type for wydes]) 419: ac_cv_wyde_type_cell=none 420: case 2 in 421: $ac_cv_sizeof_int) 422: ac_cv_wyde_type_cell=int 423: ;; 424: $ac_cv_sizeof_short) 425: ac_cv_wyde_type_cell=short 426: ;; 427: $ac_cv_sizeof_char) 428: ac_cv_wyde_type_cell=char 429: ;; 430: $ac_cv_sizeof_long) 431: ac_cv_wyde_type_cell=long 432: ;; 433: $ac_cv_sizeof_long_long) 434: ac_cv_wyde_type_cell="long long" 435: ;; 436: $ac_cv_sizeof_intptr_t) 437: ac_cv_wyde_type_cell="intptr_t" 438: ;; 439: esac 440: AC_MSG_RESULT($ac_cv_wyde_type_cell) 441: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long]) 442: 443: AC_MSG_CHECKING([for a C type for tetrabytes]) 444: ac_cv_tetrabyte_type_cell=none 445: case 4 in 446: $ac_cv_sizeof_int) 447: ac_cv_tetrabyte_type_cell=int 448: ;; 449: $ac_cv_sizeof_short) 450: ac_cv_tetrabyte_type_cell=short 451: ;; 452: $ac_cv_sizeof_char) 453: ac_cv_tetrabyte_type_cell=char 454: ;; 455: $ac_cv_sizeof_long) 456: ac_cv_tetrabyte_type_cell=long 457: ;; 458: $ac_cv_sizeof_long_long) 459: ac_cv_tetrabyte_type_cell="long long" 460: ;; 461: $ac_cv_sizeof_intptr_t) 462: ac_cv_tetrabyte_type_cell="intptr_t" 463: ;; 464: esac 465: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell) 466: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long]) 467: 468: AC_MSG_CHECKING([for a C type for double-cells]) 469: ac_cv_int_type_double_cell=none 470: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in 471: $ac_cv_sizeof_short) 472: ac_cv_int_type_double_cell=short 473: ;; 474: $ac_cv_sizeof_int) 475: ac_cv_int_type_double_cell=int 476: ;; 477: $ac_cv_sizeof_long) 478: ac_cv_int_type_double_cell=long 479: ;; 480: $ac_cv_sizeof_long_long) 481: ac_cv_int_type_double_cell="long long" 482: ;; 483: $ac_cv_sizeof_intptr_t) 484: ac_cv_int_type_double_cell="intptr_t" 485: ;; 486: $ac_cv_sizeof_int128_t) 487: ac_cv_int_type_double_cell="int128_t" 488: ;; 489: esac 490: AC_MSG_RESULT($ac_cv_int_type_double_cell) 491: 492: AC_MSG_CHECKING([for a C type for unsigned double-cells]) 493: ac_cv_int_type_double_ucell=none 494: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in 495: $ac_cv_sizeof_short) 496: ac_cv_int_type_double_ucell="unsigned short" 497: ;; 498: $ac_cv_sizeof_int) 499: ac_cv_int_type_double_ucell="unsigned int" 500: ;; 501: $ac_cv_sizeof_long) 502: ac_cv_int_type_double_ucell="unsigned long" 503: ;; 504: $ac_cv_sizeof_long_long) 505: ac_cv_int_type_double_ucell="unsigned long long" 506: ;; 507: $ac_cv_sizeof_intptr_t) 508: ac_cv_int_type_double_ucell="unsigned intptr_t" 509: ;; 510: $ac_cv_sizeof_uint128_t) 511: ac_cv_int_type_double_ucell="uint128_t" 512: ;; 513: esac 514: AC_MSG_RESULT($ac_cv_int_type_double_ucell) 515: 516: if test "$ac_cv_int_type_double_cell" != none && \ 517: test "$ac_cv_int_type_double_ucell" != none 518: then 519: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer]) 520: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer]) 521: OPTS=-ll 522: else 523: if test "$ac_cv_sizeof_char_p" = 8; then 524: OPTS="-ll -noll" 525: else 526: OPTS=-noll 527: fi 528: fi 529: 530: if grep -q FORCE_REG arch/$machine/machine.h; then 531: OPTS2='' 532: for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done 533: OPTS="$OPTS2 $OPTS" 534: else 535: AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG]) 536: fi 537: AC_SUBST(OPTS) 538: 539: AC_TYPE_OFF_T 540: AC_CHECK_SIZEOF(off_t) 541: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p 542: ac_small_off_t=$? 543: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell]) 544: 545: ENGINE_FLAGS= 546: AC_SUBST(ENGINE_FLAGS) 547: 548: # Try if GCC understands -fno-gcse 549: 550: AC_MSG_CHECKING([if $CC understands -fno-gcse]) 551: CFLAGS_1="$CFLAGS" 552: CFLAGS="$CFLAGS -fno-gcse" 553: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no) 554: CFLAGS="$CFLAGS_1" 555: AC_MSG_RESULT($ac_nogcse) 556: 557: # Try if GCC understands -fno-strict-aliasing 558: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing]) 559: CFLAGS_1="$CFLAGS" 560: CFLAGS="$CFLAGS -fno-strict-aliasing" 561: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no) 562: CFLAGS="$CFLAGS_1" 563: AC_MSG_RESULT($ac_nostrictaliasing) 564: 565: # Try if GCC understands -fno-crossjumping 566: AC_MSG_CHECKING([if $CC understands -fno-crossjumping]) 567: CFLAGS_1="$CFLAGS" 568: CFLAGS="$CFLAGS -fno-crossjumping" 569: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no) 570: CFLAGS="$CFLAGS_1" 571: AC_MSG_RESULT($ac_nocrossjumping) 572: 573: # Try if GCC understands -fno-reorder-blocks 574: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks]) 575: CFLAGS_1="$CFLAGS" 576: CFLAGS="$CFLAGS -fno-reorder-blocks" 577: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no) 578: CFLAGS="$CFLAGS_1" 579: AC_MSG_RESULT($ac_noreorder_blocks) 580: 581: # Try if GCC understands -falign-labels=1 582: AC_MSG_CHECKING([if $CC understands -falign-labels=1]) 583: CFLAGS_1="$CFLAGS" 584: CFLAGS="$CFLAGS -falign-labels=1" 585: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no) 586: CFLAGS="$CFLAGS_1" 587: AC_MSG_RESULT($ac_align_labels) 588: 589: # Try if GCC understands -falign-loops=1 590: AC_MSG_CHECKING([if $CC understands -falign-loops=1]) 591: CFLAGS_1="$CFLAGS" 592: CFLAGS="$CFLAGS -falign-loops=1" 593: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no) 594: CFLAGS="$CFLAGS_1" 595: AC_MSG_RESULT($ac_align_loops) 596: 597: # Try if GCC understands -falign-jumps=1 598: AC_MSG_CHECKING([if $CC understands -falign-jumps=1]) 599: CFLAGS_1="$CFLAGS" 600: CFLAGS="$CFLAGS -falign-jumps=1" 601: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no) 602: CFLAGS="$CFLAGS_1" 603: AC_MSG_RESULT($ac_align_jumps) 604: 605: # Try if GCC understands __attribute__((unused)) 606: AC_MSG_CHECKING([how to suppress 'unused variable' warnings]) 607: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',) 608: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables]) 609: AC_MSG_RESULT($MAYBE_UNUSED) 610: 611: #try if m4 understands -s 612: AC_MSG_CHECKING([how to invoke m4]) 613: if m4 -s /dev/null >/dev/null 2>&1; then 614: M4="m4 -s" 615: else 616: M4=m4 617: fi 618: AC_SUBST(M4) 619: AC_DEFINE_UNQUOTED(M4,"$M4",[How to invoke m4]) 620: AC_MSG_RESULT($M4) 621: 622: # Find installed Gforth 623: AC_MSG_CHECKING([for gforth]) 624: GFORTH="`cd / && which gforth 2>/dev/null`" 625: if test -z "$GFORTH"; then 626: PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false' 627: kernel_anti_dependence='' 628: else 629: PREFORTH="$GFORTH -i `cd / && gforth --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`" ; 630: kernel_anti_dependence='$(kernel_fi)' 631: fi 632: AC_SUBST(PREFORTH) 633: AC_SUBST(kernel_anti_dependence) 634: AC_MSG_RESULT($PREFORTH) 635: 636: #echo "machine='$machine'" 637: 638: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine) 639: AC_CHECK_FILE($srcdir/arch/$machine/asm.fs,[asm_fs=arch/$machine/asm.fs],) 640: AC_SUBST(asm_fs) 641: 642: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine) 643: AC_CHECK_FILE($srcdir/arch/$machine/disasm.fs,[disasm_fs=arch/$machine/disasm.fs],) 644: AC_SUBST(disasm_fs) 645: 646: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin) 647: 648: case "$host_os" in 649: *win32*) 650: # !!!FIXME!!! problems with cygwin and ';' as path separator 651: DIRSEP="\\\\" 652: PATHSEP=";" 653: #we want the builtins of command.com/cmd.exe and its 654: # handling of .com files. 655: #$COMSPEC contains the name of the Windows shell; 656: # the ./ is there, because the bash does not recognize 657: # absolute DOS filenames 658: DEFAULTSYSTEMPREFIX="./$COMSPEC /c " 659: ;; 660: *darwin*) 661: #Darwin uses some funny preprocessor by default; eliminate it: 662: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin]) 663: CFLAGS="$CFLAGS -no-cpp-precomp" 664: DIRSEP="/" 665: PATHSEP=":" 666: DEFAULTSYSTEMPREFIX="" 667: ;; 668: *) 669: DIRSEP="/" 670: PATHSEP=":" 671: DEFAULTSYSTEMPREFIX="" 672: ;; 673: esac 674: AC_SUBST(DIRSEP) 675: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character]) 676: AC_SUBST(PATHSEP) 677: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character]) 678: AC_SUBST(DEFAULTSYSTEMPREFIX) 679: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX]) 680: 681: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>) 682: #This magic incantation seems to be completely undocumented. 683: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true]) 684: 685: dnl Now a little support for DOS/DJGCC 686: AC_SUBST(GFORTH_EXE) 687: GFORTH_EXE="true" 688: AC_SUBST(GFORTHFAST_EXE) 689: GFORTHFAST_EXE="true" 690: AC_SUBST(GFORTHITC_EXE) 691: GFORTHITC_EXE="true" 692: AC_SUBST(GFORTHDITC_EXE) 693: GFORTHDITC_EXE="true" 694: 695: AC_SUBST(FORTHSIZES) 696: 697: dnl if test "$PEEPHOLE" = "yes" 698: dnl then 699: dnl PEEPHOLEFLAG="true" 700: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization]) 701: dnl else 702: dnl PEEPHOLEFLAG="false" 703: dnl fi 704: PEEPHOLEFLAG="true" 705: AC_SUBST(PEEPHOLEFLAG) 706: 707: dnl copy commands for systems that don't have links 708: AC_SUBST(LINK_KERNL) 709: LINK_KERNL="" 710: 711: #if test $host_os=dos 712: #then 713: # echo Configuring for DOS!!! 714: # MAKE_EXE="coff2exe gforth" 715: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi' 716: #fi 717: 718: dnl the following macro produces a warning with autoconf-2.1 719: AC_C_BIGENDIAN 720: AC_SUBST(KERNEL) 721: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1 722: if test $ac_cv_c_bigendian = yes; then 723: bytesex=b 724: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi" 725: else 726: bytesex=l 727: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi" 728: fi 729: 730: #check how to do asm(".skip 16") 731: #echo "CFLAGS=$CFLAGS" 732: #echo "ac_link=$ac_link" 733: AC_MSG_CHECKING([if and how we can waste code space]) 734: if test -z "$skipcode"; then 735: skipcode=no 736: CFLAGS_1="$CFLAGS" 737: CFLAGS="$CFLAGS $ENGINE_FLAGS" 738: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16" 739: do 740: AC_TRY_RUN( 741: [int foo(int,int,int); 742: main() 743: { 744: exit(foo(0,0,0)!=16); 745: } 746: int foo(int x, int y, int z) 747: { 748: static void *labels[]={&&label1, &&label2}; 749: if (x) { 750: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */ 751: label1: 752: asm("$i"); /* or ".space 16" or somesuch */ 753: label2: ; 754: } 755: { 756: if (y) goto *labels[z]; /* workaround for gcc PR12108 */ 757: return labels[1]-labels[0]; 758: } 759: }] 760: ,skipcode=$i; break 761: ,,) 762: done 763: CFLAGS=$CFLAGS_1 764: fi 765: AC_MSG_RESULT($skipcode) 766: if test "$skipcode" = no 767: then 768: if test -z $no_dynamic_default; then 769: no_dynamic_default=1 770: AC_MSG_WARN(Disabling default dynamic native code generation) 771: fi 772: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes) 773: else 774: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes) 775: fi 776: 777: AC_MSG_CHECKING([if and how we can do comments in asm statements]) 778: #the point here is to get asm statements that look different to 779: #gcc's "optimizer" 780: if test -z "$asmcomment"; then 781: asmcomment=no 782: CFLAGS_1="$CFLAGS" 783: CFLAGS="$CFLAGS $ENGINE_FLAGS" 784: for i in '"# "' '"! "' '"; "'; do 785: AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,) 786: done 787: CFLAGS=$CFLAGS_1 788: fi 789: AC_MSG_RESULT($asmcomment) 790: if test "$asmcomment" != no 791: then 792: AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string]) 793: fi 794: 795: test "$no_dynamic_default" || no_dynamic_default=0 796: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic) 797: 798: dnl Checks for programs. 799: AC_PROG_LN_S 800: AC_PROG_INSTALL 801: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi) 802: 803: dnl MacOS X has a libtool that does something else 804: AC_CHECK_PROGS(GNU_LIBTOOL,glibtool libtool) 805: 806: dnl Checks for library functions 807: dnl This check is just for making later checks link with libm. 808: dnl using sin here is no good idea since it is built-into gcc and typechecked 809: AC_CHECK_LIB(m,asin) 810: AC_CHECK_LIB(ltdl,lt_dlinit) 811: #check for libffi 2.x 812: AC_CHECK_LIB(ffi,ffi_call) 813: if test $ac_cv_lib_ffi_ffi_call = yes 814: then 815: LIBFFIFLAG="true" 816: else 817: LIBFFIFLAG="false" 818: fi 819: #check for ffcall libraries 820: #unfortunately, these four calls are separated out into a library each. 821: AC_CHECK_LIB(avcall,__builtin_avcall) 822: dnl AC_CHECK_LIB(callback,__vacall_r) 823: dnl AC_CHECK_LIB(vacall,vacall) 824: dnl AC_CHECK_LIB(trampoline,alloc_trampoline) 825: if test $ac_cv_lib_avcall___builtin_avcall = yes; then 826: FFCALLFLAG="true" 827: else 828: FFCALLFLAG="false" 829: fi 830: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then 831: AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries]) 832: fi 833: AC_SUBST(LIBFFIFLAG) 834: AC_SUBST(FFCALLFLAG) 835: if test "$host_os" != "nextstep3" 836: then 837: AC_FUNC_MEMCMP 838: fi 839: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh) 840: AC_FUNC_FSEEKO 841: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep) 842: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>]) 843: AC_DECL_SYS_SIGLIST 844: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)]) 845: AC_CHECK_FUNCS(expm1 log1p) 846: AC_REPLACE_FUNCS(rint ecvt) 847: dnl No check for select, because our replacement is no good under 848: dnl anything but DOS 849: AC_CHECK_HEADERS(sys/mman.h fnmatch.h) 850: AC_FUNC_FNMATCH 851: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch) 852: AC_CHECK_FUNCS(mmap sysconf getpagesize) 853: AM_PATH_LISPDIR 854: 855: kernel_fi=kernl${vwordsize}${bytesex}.fi 856: include_fi=kernl${wordsize}${bytesex}${EC}.fi 857: AC_SUBST(kernel_fi) 858: AC_SUBST(include_fi) 859: 860: #this breaks bindists 861: #dnl replace srource directory by absolute value 862: #if test $srcdir = "."; then srcdir=`pwd` 863: #fi 864: 865: AC_SUBST(machine) 866: AC_CONFIG_FILES([ 867: Makefile 868: Makedist 869: gforthmi 870: vmgen 871: machpc.fs 872: envos.fs 873: preforth 874: engine/Makefile 875: engine/libcc.h 876: doc/version.texi 877: build-ec ]) 878: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h 879: chmod +x gforthmi 880: chmod +x vmgen 881: chmod +x build-ec 882: chmod +x preforth 883: test -d kernel||mkdir kernel 884: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION 885: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],[[PACKAGE_VERSION=$PACKAGE_VERSION]]) 886: AC_OUTPUT 887: