gforth/configure.in - view

File: [gforth] / gforth / configure.in
Revision 1.215: download - view: text, annotated - select for diffs
Sun Feb 10 16:46:55 2008 UTC (15 years, 7 months ago) by anton
Branches: MAIN
CVS tags: HEAD

Kernel and primitive building should now be done by a pre-installed gforth.
  configure.in and Makefile.in are now prepared for that.
  However, it does not work yet.

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 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],[0.6.9-20070604],[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="June 02, 2007" 29: AC_SUBST(UPDATED) 30: AC_CONFIG_HEADERS(engine/config.h) 31: 32: #suppress the "-g -O2" default 33: test "$CFLAGS" || CFLAGS=-O2 34: 35: AC_ARG_ENABLE(force-cdiv, 36: AC_HELP_STRING([--enable-force-cdiv], 37: [ Use the native C division - symmetric - instead of 38: floored division (default disabled).]), 39: ,enable_force_cdiv=no) 40: test "$enable_force_cdiv" = "no"|| 41: AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance]) 42: 43: AC_SUBST(PROFEXES) 44: AC_SUBST(PROFOBJS) 45: AC_ARG_ENABLE(prof, 46: AC_HELP_STRING([--enable-prof], 47: [ Build gforth-prof, which outputs frequently occuring 48: sequences of primitives.]), 49: ,enable_prof=no) 50: if test "$enable_prof" != "no"; then 51: PROFEXES='gforth-prof$(OPT)$(EXE)'; PROFOBJS='engine-prof$(OPT).o main-prof$(OPT).o profile$(OPT).o' 52: fi 53: 54: AC_ARG_WITH(debug, 55: [ --with-debug specifies option -g to compile with debug info 56: --without-debug omits the -g switch and creates smaller images on 57: machines where "strip" has problems with gcc style 58: debugging informations.], 59: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi) 60: 61: GCC_LD="\$(GCC)" 62: EC_MODE="false" 63: EC="" 64: engine2='engine2$(OPT).o' 65: engine_fast2='engine-fast2$(OPT).o' 66: no_dynamic="" 67: image_i="" 68: signals_o="io.o signals.o" 69: 70: AC_ARG_WITH(ec, 71: AC_HELP_STRING([--with-ec=<arch>], 72: [ Build gforth for systems without OS.]), 73: [if test "$withval" = "no"; then 74: echo "defining hosted system" 75: else 76: echo "defining standalone system (${withval})" 77: AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS]) 78: EC_MODE="true" 79: EC="-ec" 80: engine2="" 81: engine_fast2="" 82: no_dynamic="-DNO_DYNAMIC" 83: image_i="image.i" 84: if test "$withval" != "yes"; then 85: signals_o="io-${withval}.o" 86: else 87: signals_o="io.o" 88: fi 89: GCC_PATH=$(which $CC) 90: LIB_PATH=${GCC_PATH%/*/*} 91: GCC_LD="\$(LD)" 92: platform=${withval} 93: fi]) 94: 95: #variables mentioned in INSTALL 96: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).]) 97: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).]) 98: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).]) 99: AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).]) 100: 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)]) 101: 102: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)]) 103: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)]) 104: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)]) 105: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)]) 106: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)]) 107: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)]) 108: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)]) 109: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)]) 110: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?]) 111: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default]) 112: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches]) 113: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code]) 114: AC_ARG_VAR(asmcomment, [assembler comment start string]) 115: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)]) 116: 117: #set up feature test macros, so the tests get them right: 118: # turn on all POSIX, SUSv3, and GNU features if available 119: AC_GNU_SOURCE 120: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro]) 121: 122: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular 123: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE, 124: dnl but not for _XOPEN_SOURCE) 125: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro]) 126: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro]) 127: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro]) 128: # turn on large file support with 64-bit off_t where available 129: AC_SYS_LARGEFILE 130: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro]) 131: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro]) 132: 133: #currently we force direct threading this way. Eventually we should 134: #setup in the arch and engine files right 135: 136: AC_PROG_CC 137: 138: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher) 139: 140: AC_MSG_CHECKING([whether to use two dispatches per conditional branch]) 141: test x$condbranch_opt = x && 142: if ($CC -v 2>&1 |grep -q 'gcc version 3'); then 143: condbranch_opt=0 144: else 145: condbranch_opt=1 146: fi 147: AC_MSG_RESULT($condbranch_opt) 148: AC_SUBST(condbranch_opt) 149: 150: AC_SUBST(CC) 151: AC_SUBST(GCC_LD) 152: AC_SUBST(DEBUGFLAG) 153: AC_SUBST(EC) 154: AC_SUBST(EC_MODE) 155: AC_SUBST(engine2) 156: AC_SUBST(engine_fast2) 157: AC_SUBST(no_dynamic) 158: AC_SUBST(image_i) 159: AC_SUBST(signals_o) 160: 161: #this is used to disable some (not generally essential) part of the 162: #Makefile that some makes don't grok. It would be better to test for 163: #this specific Makefile feature than the make version. 164: AC_MSG_CHECKING(make type) 165: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'` 166: GNUMAKE='#' 167: test "$make_type" = "GNU Make" && GNUMAKE='' 168: AC_MSG_RESULT($make_type) 169: AC_SUBST(GNUMAKE) 170: 171: AC_MSG_CHECKING([whether the linker accepts -export-dynamic]) 172: OLDLDFLAGS=$LDFLAGS 173: LDFLAGS="$LDFLAGS -export-dynamic" 174: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0 175: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no) 176: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no) 177: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS 178: AC_MSG_RESULT($ac_export_dynamic) 179: 180: #terminology is a bit unusual here: The host is the system on which 181: #gforth will run; the system on which configure will run is the `build' 182: AC_CANONICAL_HOST 183: case "$host_cpu" in 184: arm*) 185: machine=arm 186: CFLAGS="$CFLAGS -fomit-frame-pointer" 187: if test x$platform = xnxt; then 188: CFLAGS="$CFLAGS -mthumb -mthumb-interwork" 189: fi 190: if test -z $arm_cacheflush; then 191: case "$host_os" in 192: *linux*) 193: arm_cacheflush=arch/arm/cacheflush-linux 194: ;; 195: *) 196: no_dynamic_default=1 197: arm_cacheflush=arch/arm/cacheflush0 198: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) 199: ;; 200: esac 201: fi 202: AC_LIBSOURCES([../arch/arm/cacheflush0, dnl 203: ../arch/arm/cacheflush-linux]) 204: AC_LIBOBJ(../$arm_cacheflush) 205: #longer skipcodes lead to problems on ARM, and it uses 206: #only 4-byte alignment anyway 207: test "$skipcode" || skipcode="nop" 208: ;; 209: hppa*) 210: machine=hppa 211: $srcdir/mkinstalldirs arch/hppa 212: AC_LIBOBJ(../arch/hppa/cache) 213: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net> 214: LDFLAGS="$LDFLAGS -Xlinker -N" 215: LIBS="$LIBS -L/lib/pa1.1/" 216: ;; 217: sparc*) 218: machine=sparc 219: ;; 220: i386) 221: machine=386 222: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" 223: ;; 224: i486) 225: machine=386 226: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -m486" 227: ;; 228: i*86) 229: machine=386 230: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" 231: CFLAGS_1="$CFLAGS" 232: CFLAGS="$CFLAGS -march=pentium" 233: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486") 234: ;; 235: x86_64) 236: case $CC 237: in 238: *-m32*) 239: machine=386 240: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" 241: CFLAGS_1="$CFLAGS" 242: CFLAGS="$CFLAGS -march=athlon64" 243: ;; 244: *) 245: machine=amd64 246: ;; 247: esac 248: ;; 249: ia64*) 250: machine=ia64 251: AC_LIBOBJ(../arch/ia64/flush_icache_block) 252: test "$skipcode" || skipcode="nop.i 0" 253: #".skip 16" passes the test below, 254: # but gives an assembler error in engine 255: ;; 256: m68k) 257: machine=m68k 258: CFLAGS="$CFLAGS -fomit-frame-pointer" 259: if test "$host_os" = "nextstep3" 260: then 261: AC_LIBOBJ(termios) 262: fi 263: ;; 264: mips*) 265: machine=mips 266: #dynamic native code has the following problems on MIPS: 267: # 268: #1) J/JAL seems relocatable, but is are only 269: #relocatable within a 256MB-segment. While we try to 270: #get the linker to arrange this, there is no guarantee 271: #that this will succeed (and if the user uses a lot of 272: #memory, it is likely to fail). 273: # 274: #2) The way we generate dynamic native code may 275: #violate MIPS architectural restrictions (in 276: #particular, the delay slots of LW, MFLO, etc.) 277: # 278: #Therefore we disable dynamic native code by default: 279: if test -z $no_dynamic_default; then 280: no_dynamic_default=1 281: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)]) 282: fi 283: ;; 284: alpha*) 285: machine=alpha 286: #full IEEE FP support for more uniformity across platforms: 287: CFLAGS="$CFLAGS -mieee" 288: ;; 289: power*|rs6000) 290: machine=power 291: $srcdir/mkinstalldirs arch/power 292: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)]) 293: #long long is broken on (at least) gcc-2.95.* for PPC 294: test x$ac_cv_sizeof_long_long = x && 295: ($CC -v 2>&1 |grep -q 'gcc version 2.95') && 296: ac_cv_sizeof_long_long=0 297: #The only architecture with enough callee-saved registers 298: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3 299: #or use 2, hardly slower at run-time and starts up faster 300: ;; 301: *) 302: AC_MSG_WARN([Using a generic machine description]) 303: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)]) 304: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!]) 305: machine=generic 306: #I-cache flushing would be needed for dynamic code generation 307: if test -z $no_dynamic_default; then 308: no_dynamic_default=1 309: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) 310: fi 311: esac 312: AC_SUBST(host) 313: 314: MAKEINC="" 315: 316: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)" 317: if test x$EC_MODE = xtrue 318: then 319: echo "Check for arch/$machine/$platform/gforth.ld" 320: if test -f arch/$machine/$platform/gforth.ld 321: then 322: LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS" 323: if test x$platform = xnxt; then 324: 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 $LIBS" 325: fi 326: fi 327: if test -f arch/$machine/$platform/make.inc 328: then 329: MAKEINC="include ../arch/$machine/$platform/make.inc" 330: fi 331: fi 332: AC_SUBST(MAKEINC) 333: 334: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).]) 335: 336: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1 337: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS, 338: [number of registers in the maximum stack cache state for gforth-fast and gforth-native]) 339: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1 340: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST, 341: [number of registers in the default stack cache state for gforth-fast and gforth-native]) 342: 343: test x$GCC_PR15242_WORKAROUND = x || 344: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND, 345: [force (1) or forbid (0) use of a workaround for a gcc performance bug]) 346: 347: dnl the following macro produces a warning with autoconf-2.1 348: AC_CHECK_SIZEOF(char *) 349: case "$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: 361: AC_CHECK_SIZEOF(void *) 362: case "$ac_cv_sizeof_void_p" in 363: 2) 364: vwordsize=16 365: ;; 366: 4) 367: vwordsize=32 368: ;; 369: 8) 370: vwordsize=64 371: ;; 372: esac 373: 374: AC_CHECK_SIZEOF(char) 375: AC_CHECK_SIZEOF(short) 376: AC_CHECK_SIZEOF(int) 377: AC_CHECK_SIZEOF(long) 378: AC_CHECK_SIZEOF(long long) 379: AC_CHECK_SIZEOF(intptr_t) 380: AC_CHECK_SIZEOF(int128_t) 381: AC_CHECK_SIZEOF(uint128_t) 382: 383: AC_MSG_CHECKING([for a C type for cells]) 384: ac_cv_int_type_cell=none 385: case "$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: $ac_cv_sizeof_intptr_t) 402: ac_cv_int_type_cell="intptr_t" 403: ;; 404: esac 405: AC_MSG_RESULT($ac_cv_int_type_cell) 406: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer]) 407: 408: AC_MSG_CHECKING([for a C type for wydes]) 409: ac_cv_wyde_type_cell=none 410: case 2 in 411: $ac_cv_sizeof_int) 412: ac_cv_wyde_type_cell=int 413: ;; 414: $ac_cv_sizeof_short) 415: ac_cv_wyde_type_cell=short 416: ;; 417: $ac_cv_sizeof_char) 418: ac_cv_wyde_type_cell=char 419: ;; 420: $ac_cv_sizeof_long) 421: ac_cv_wyde_type_cell=long 422: ;; 423: $ac_cv_sizeof_long_long) 424: ac_cv_wyde_type_cell="long long" 425: ;; 426: $ac_cv_sizeof_intptr_t) 427: ac_cv_wyde_type_cell="intptr_t" 428: ;; 429: esac 430: AC_MSG_RESULT($ac_cv_wyde_type_cell) 431: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long]) 432: 433: AC_MSG_CHECKING([for a C type for tetrabytes]) 434: ac_cv_tetrabyte_type_cell=none 435: case 4 in 436: $ac_cv_sizeof_int) 437: ac_cv_tetrabyte_type_cell=int 438: ;; 439: $ac_cv_sizeof_short) 440: ac_cv_tetrabyte_type_cell=short 441: ;; 442: $ac_cv_sizeof_char) 443: ac_cv_tetrabyte_type_cell=char 444: ;; 445: $ac_cv_sizeof_long) 446: ac_cv_tetrabyte_type_cell=long 447: ;; 448: $ac_cv_sizeof_long_long) 449: ac_cv_tetrabyte_type_cell="long long" 450: ;; 451: $ac_cv_sizeof_intptr_t) 452: ac_cv_tetrabyte_type_cell="intptr_t" 453: ;; 454: esac 455: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell) 456: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long]) 457: 458: AC_MSG_CHECKING([for a C type for double-cells]) 459: ac_cv_int_type_double_cell=none 460: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in 461: $ac_cv_sizeof_short) 462: ac_cv_int_type_double_cell=short 463: ;; 464: $ac_cv_sizeof_int) 465: ac_cv_int_type_double_cell=int 466: ;; 467: $ac_cv_sizeof_long) 468: ac_cv_int_type_double_cell=long 469: ;; 470: $ac_cv_sizeof_long_long) 471: ac_cv_int_type_double_cell="long long" 472: ;; 473: $ac_cv_sizeof_intptr_t) 474: ac_cv_int_type_double_cell="intptr_t" 475: ;; 476: $ac_cv_sizeof_int128_t) 477: ac_cv_int_type_double_cell="int128_t" 478: ;; 479: esac 480: AC_MSG_RESULT($ac_cv_int_type_double_cell) 481: 482: AC_MSG_CHECKING([for a C type for unsigned double-cells]) 483: ac_cv_int_type_double_ucell=none 484: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in 485: $ac_cv_sizeof_short) 486: ac_cv_int_type_double_ucell="unsigned short" 487: ;; 488: $ac_cv_sizeof_int) 489: ac_cv_int_type_double_ucell="unsigned int" 490: ;; 491: $ac_cv_sizeof_long) 492: ac_cv_int_type_double_ucell="unsigned long" 493: ;; 494: $ac_cv_sizeof_long_long) 495: ac_cv_int_type_double_ucell="unsigned long long" 496: ;; 497: $ac_cv_sizeof_intptr_t) 498: ac_cv_int_type_double_ucell="unsigned intptr_t" 499: ;; 500: $ac_cv_sizeof_uint128_t) 501: ac_cv_int_type_double_ucell="uint128_t" 502: ;; 503: esac 504: AC_MSG_RESULT($ac_cv_int_type_double_ucell) 505: 506: if test "$ac_cv_int_type_double_cell" != none && \ 507: test "$ac_cv_int_type_double_ucell" != none 508: then 509: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer]) 510: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer]) 511: OPTS=-ll 512: else 513: if test "$ac_cv_sizeof_char_p" == 8; then 514: OPTS="-ll -noll" 515: else 516: OPTS=-noll 517: fi 518: fi 519: 520: if grep -q FORCE_REG arch/$machine/machine.h; then 521: OPTS=`for i in $OPTS; do echo -n "$i-reg "; done`$OPTS 522: fi 523: AC_SUBST(OPTS) 524: 525: AC_TYPE_OFF_T 526: AC_CHECK_SIZEOF(off_t) 527: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p 528: ac_small_off_t=$? 529: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell]) 530: 531: ENGINE_FLAGS= 532: AC_SUBST(ENGINE_FLAGS) 533: 534: # Try if GCC understands -fno-gcse 535: 536: AC_MSG_CHECKING([if $CC understands -fno-gcse]) 537: CFLAGS_1="$CFLAGS" 538: CFLAGS="$CFLAGS -fno-gcse" 539: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no) 540: CFLAGS="$CFLAGS_1" 541: AC_MSG_RESULT($ac_nogcse) 542: 543: # Try if GCC understands -fno-strict-aliasing 544: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing]) 545: CFLAGS_1="$CFLAGS" 546: CFLAGS="$CFLAGS -fno-strict-aliasing" 547: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no) 548: CFLAGS="$CFLAGS_1" 549: AC_MSG_RESULT($ac_nostrictaliasing) 550: 551: # Try if GCC understands -fno-crossjumping 552: AC_MSG_CHECKING([if $CC understands -fno-crossjumping]) 553: CFLAGS_1="$CFLAGS" 554: CFLAGS="$CFLAGS -fno-crossjumping" 555: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no) 556: CFLAGS="$CFLAGS_1" 557: AC_MSG_RESULT($ac_nocrossjumping) 558: 559: # Try if GCC understands -fno-reorder-blocks 560: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks]) 561: CFLAGS_1="$CFLAGS" 562: CFLAGS="$CFLAGS -fno-reorder-blocks" 563: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no) 564: CFLAGS="$CFLAGS_1" 565: AC_MSG_RESULT($ac_noreorder_blocks) 566: 567: # Try if GCC understands -falign-labels=1 568: AC_MSG_CHECKING([if $CC understands -falign-labels=1]) 569: CFLAGS_1="$CFLAGS" 570: CFLAGS="$CFLAGS -falign-labels=1" 571: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no) 572: CFLAGS="$CFLAGS_1" 573: AC_MSG_RESULT($ac_align_labels) 574: 575: # Try if GCC understands -falign-loops=1 576: AC_MSG_CHECKING([if $CC understands -falign-loops=1]) 577: CFLAGS_1="$CFLAGS" 578: CFLAGS="$CFLAGS -falign-loops=1" 579: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no) 580: CFLAGS="$CFLAGS_1" 581: AC_MSG_RESULT($ac_align_loops) 582: 583: # Try if GCC understands -falign-jumps=1 584: AC_MSG_CHECKING([if $CC understands -falign-jumps=1]) 585: CFLAGS_1="$CFLAGS" 586: CFLAGS="$CFLAGS -falign-jumps=1" 587: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no) 588: CFLAGS="$CFLAGS_1" 589: AC_MSG_RESULT($ac_align_jumps) 590: 591: # Try if GCC understands __attribute__((unused)) 592: AC_MSG_CHECKING([how to suppress 'unused variable' warnings]) 593: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',) 594: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables]) 595: AC_MSG_RESULT($MAYBE_UNUSED) 596: 597: #try if m4 understands -s 598: AC_MSG_CHECKING([how to invoke m4]) 599: if m4 -s /dev/null >/dev/null 2>&1; then 600: M4="m4 -s" 601: else 602: M4=m4 603: fi 604: AC_SUBST(M4) 605: AC_DEFINE_UNQUOTED(M4,"$M4",[How to invoke m4]) 606: AC_MSG_RESULT($M4) 607: 608: # Find installed Gforth 609: AC_MSG_CHECKING([for gforth]) 610: GFORTH="`cd / && which gforth 2>/dev/null`" 611: if test -z "$GFORTH"; then 612: PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false' 613: else 614: PREFORTH="$GFORTH -i `cd / && gforth --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`" ; 615: fi 616: AC_SUBST(PREFORTH) 617: AC_DEFINE_UNQUOTED(PREFORTH,"$PREFORTH",[How to invoke the pre-installed gforth]) 618: AC_MSG_RESULT($PREFORTH) 619: 620: #echo "machine='$machine'" 621: 622: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine) 623: AC_CHECK_FILE($srcdir/arch/$machine/asm.fs,[asm_fs=arch/$machine/asm.fs],) 624: AC_SUBST(asm_fs) 625: 626: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine) 627: AC_CHECK_FILE($srcdir/arch/$machine/disasm.fs,[disasm_fs=arch/$machine/disasm.fs],) 628: AC_SUBST(disasm_fs) 629: 630: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin) 631: 632: case "$host_os" in 633: *win32*) 634: # !!!FIXME!!! problems with cygwin and ';' as path separator 635: DIRSEP="\\\\" 636: PATHSEP=";" 637: #we want the builtins of command.com/cmd.exe and its 638: # handling of .com files. 639: #$COMSPEC contains the name of the Windows shell; 640: # the ./ is there, because the bash does not recognize 641: # absolute DOS filenames 642: DEFAULTSYSTEMPREFIX="./$COMSPEC /c " 643: ;; 644: *darwin*) 645: #Darwin uses some funny preprocessor by default; eliminate it: 646: AC_MSG_NOTICE([using -no-cpp-precomp on Darwin]) 647: CFLAGS="$CFLAGS -no-cpp-precomp" 648: DIRSEP="/" 649: PATHSEP=":" 650: DEFAULTSYSTEMPREFIX="" 651: ;; 652: *) 653: DIRSEP="/" 654: PATHSEP=":" 655: DEFAULTSYSTEMPREFIX="" 656: ;; 657: esac 658: AC_SUBST(DIRSEP) 659: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character]) 660: AC_SUBST(PATHSEP) 661: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character]) 662: AC_SUBST(DEFAULTSYSTEMPREFIX) 663: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX]) 664: 665: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>) 666: #This magic incantation seems to be completely undocumented. 667: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true]) 668: 669: dnl Now a little support for DOS/DJGCC 670: AC_SUBST(GFORTH_EXE) 671: GFORTH_EXE="true" 672: AC_SUBST(GFORTHFAST_EXE) 673: GFORTHFAST_EXE="true" 674: AC_SUBST(GFORTHITC_EXE) 675: GFORTHITC_EXE="true" 676: AC_SUBST(GFORTHDITC_EXE) 677: GFORTHDITC_EXE="true" 678: 679: AC_SUBST(FORTHSIZES) 680: 681: dnl if test "$PEEPHOLE" = "yes" 682: dnl then 683: dnl PEEPHOLEFLAG="true" 684: dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization]) 685: dnl else 686: dnl PEEPHOLEFLAG="false" 687: dnl fi 688: PEEPHOLEFLAG="true" 689: AC_SUBST(PEEPHOLEFLAG) 690: 691: dnl copy commands for systems that don't have links 692: AC_SUBST(LINK_KERNL) 693: LINK_KERNL="" 694: 695: #if test $host_os=dos 696: #then 697: # echo Configuring for DOS!!! 698: # MAKE_EXE="coff2exe gforth" 699: # LINK_KERNL='$(CP) kernl32l.fi kernel.fi' 700: #fi 701: 702: dnl the following macro produces a warning with autoconf-2.1 703: AC_C_BIGENDIAN 704: AC_SUBST(KERNEL) 705: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1 706: if test $ac_cv_c_bigendian = yes; then 707: bytesex=b 708: KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi" 709: else 710: bytesex=l 711: KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi" 712: fi 713: 714: #check how to do asm(".skip 16") 715: #echo "CFLAGS=$CFLAGS" 716: #echo "ac_link=$ac_link" 717: AC_MSG_CHECKING([if and how we can waste code space]) 718: if test -z "$skipcode"; then 719: skipcode=no 720: CFLAGS_1="$CFLAGS" 721: CFLAGS="$CFLAGS $ENGINE_FLAGS" 722: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16" 723: do 724: AC_TRY_RUN( 725: [int foo(int,int,int); 726: main() 727: { 728: exit(foo(0,0,0)!=16); 729: } 730: int foo(int x, int y, int z) 731: { 732: static void *labels[]={&&label1, &&label2}; 733: if (x) { 734: y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */ 735: label1: 736: asm("$i"); /* or ".space 16" or somesuch */ 737: label2: ; 738: } 739: { 740: if (y) goto *labels[z]; /* workaround for gcc PR12108 */ 741: return labels[1]-labels[0]; 742: } 743: }] 744: ,skipcode=$i; break 745: ,,) 746: done 747: CFLAGS=$CFLAGS_1 748: fi 749: AC_MSG_RESULT($skipcode) 750: if test "$skipcode" = no 751: then 752: if test -z $no_dynamic_default; then 753: no_dynamic_default=1 754: AC_MSG_WARN(Disabling default dynamic native code generation) 755: fi 756: AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes) 757: else 758: AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes) 759: fi 760: 761: AC_MSG_CHECKING([if and how we can do comments in asm statements]) 762: #the point here is to get asm statements that look different to 763: #gcc's "optimizer" 764: if test -z "$asmcomment"; then 765: asmcomment=no 766: CFLAGS_1="$CFLAGS" 767: CFLAGS="$CFLAGS $ENGINE_FLAGS" 768: for i in '"# "' '"! "' '"; "'; do 769: AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,) 770: done 771: CFLAGS=$CFLAGS_1 772: fi 773: AC_MSG_RESULT($asmcomment) 774: if test "$asmcomment" != no 775: then 776: AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string]) 777: fi 778: 779: test "$no_dynamic_default" || no_dynamic_default=0 780: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic) 781: 782: dnl Checks for programs. 783: AC_PROG_LN_S 784: AC_PROG_INSTALL 785: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi) 786: 787: dnl MacOS X has a libtool that does something else 788: AC_CHECK_PROGS(GNU_LIBTOOL,glibtool libtool) 789: 790: dnl Checks for library functions 791: dnl This check is just for making later checks link with libm. 792: dnl using sin here is no good idea since it is built-into gcc and typechecked 793: AC_CHECK_LIB(m,asin) 794: AC_CHECK_LIB(ltdl,lt_dlinit) 795: AC_CHECK_LIB(dl,dlopen) 796: dnl check for libffi 2.x 797: AC_CHECK_LIB(ffi,ffi_call) 798: if test $ac_cv_lib_ffi_ffi_call = yes 799: then 800: LIBFFIFLAG="true" 801: FFCALLFLAG="false" 802: OLDCALLFLAG="false" 803: AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0]) 804: else 805: dnl check for ffcall libraries 806: dnl unfortunately, these four calls are separated out into a library each. 807: AC_CHECK_LIB(avcall,__builtin_avcall) 808: AC_CHECK_LIB(callback,__vacall_r) 809: AC_CHECK_LIB(vacall,vacall) 810: AC_CHECK_LIB(trampoline,alloc_trampoline) 811: LIBFFIFLAG="false" 812: FFCALLFLAG="false" 813: OLDCALLFLAG="true" 814: 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]) 815: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries]) 816: fi 817: AC_SUBST(LIBFFIFLAG) 818: AC_SUBST(FFCALLFLAG) 819: AC_SUBST(OLDCALLFLAG) 820: if test "$host_os" != "nextstep3" 821: then 822: AC_FUNC_MEMCMP 823: fi 824: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh) 825: AC_FUNC_FSEEKO 826: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep) 827: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>]) 828: AC_DECL_SYS_SIGLIST 829: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)]) 830: AC_CHECK_FUNCS(expm1 log1p) 831: AC_REPLACE_FUNCS(rint ecvt) 832: dnl No check for select, because our replacement is no good under 833: dnl anything but DOS 834: AC_CHECK_HEADERS(sys/mman.h fnmatch.h) 835: AC_FUNC_FNMATCH 836: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch) 837: AC_CHECK_FUNCS(mmap sysconf getpagesize) 838: AM_PATH_LISPDIR 839: 840: kernel_fi=kernl${vwordsize}${bytesex}.fi 841: include_fi=kernl${wordsize}${bytesex}${EC}.fi 842: AC_SUBST(kernel_fi) 843: AC_SUBST(include_fi) 844: 845: #this breaks bindists 846: #dnl replace srource directory by absolute value 847: #if test $srcdir = "."; then srcdir=`pwd` 848: #fi 849: 850: AC_SUBST(machine) 851: AC_CONFIG_FILES([ 852: Makefile 853: Makedist 854: gforthmi 855: vmgen 856: machpc.fs 857: envos.fs 858: engine/Makefile 859: engine/libcc.h 860: doc/version.texi 861: build-ec ]) 862: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h 863: chmod +x gforthmi 864: chmod +x vmgen 865: chmod +x build-ec 866: test -d kernel||mkdir kernel 867: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION 868: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],[[PACKAGE_VERSION=$PACKAGE_VERSION]]) 869: AC_OUTPUT 870: