gforth/configure.in - view

File: [gforth] / gforth / configure.in
Revision 1.194: download - view: text, annotated - select for diffs
Sat Jun 30 20:28:55 2007 UTC (15 years, 8 months ago) by anton
Branches: MAIN
CVS tags: HEAD

fixed minor bug in -falign-* configure tests
cleaned up dependencies on .h files in engine/Makefile.in
made Alpha port compile with gcc-2.95 (disabled longlong.h division)
optimized Alpha port:
  use old division code
  native code after a jump is now aligned.  Speed effect:
   sieve bubble matrix  fib
    1.950 1.605  1.259 1.653 b1 gcc-3.3.5
    1.453 1.932  1.230 1.458 b1 gcc-3.3.5 with alignment
  aligning branch targets would probably also help

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 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 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 19: #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. 20: 21: 22: dnl We use some automake macros here, 23: dnl but don't use automake for creating Makefile.in 24: AC_INIT([gforth],[0.6.9-20070604],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth]) 25: AC_PREREQ(2.54) 26: #snapshots have numbers major.minor.release-YYYYMMDD 27: #note that lexicographic ordering must be heeded. 28: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1! 29: UPDATED="June 02, 2007" 30: AC_SUBST(UPDATED) 31: AC_CONFIG_HEADERS(engine/config.h) 32: 33: #suppress the "-g -O2" default 34: test "$CFLAGS" || CFLAGS=-O2 35: 36: AC_ARG_ENABLE(force-reg, 37: AC_HELP_STRING([--enable-force-reg], 38: [ Use explicit register declarations if they appear in 39: the machine.h file. This can cause a good speedup, 40: but also incorrect code with some gcc versions on 41: some processors (default disabled).]), 42: ,enable_force_reg=no) 43: test "$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: 46: AC_ARG_ENABLE(force-ll, 47: AC_HELP_STRING([--enable-force-ll], 48: [ Use explicit long long declarations if they appear in 49: the machine.h file. This can cause a good speedup, 50: but also incorrect code with some gcc versions on 51: some processors (default disabled).]), 52: ,enable_force_ll=no) 53: test "$enable_force_ll" = "no"|| 54: AC_DEFINE(FORCE_LL,,[Define if you want to use explicit long long declarations for better performance (does not work with all GCC versions on all machines)]) 55: 56: AC_ARG_ENABLE(force-cdiv, 57: AC_HELP_STRING([--enable-force-cdiv], 58: [ Use the native C division - symmetric - instead of 59: floored division (default disabled).]), 60: ,enable_force_cdiv=no) 61: test "$enable_force_cdiv" = "no"|| 62: AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance]) 63: 64: AC_SUBST(PROFEXES) 65: AC_SUBST(PROFOBJS) 66: AC_ARG_ENABLE(prof, 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 "$enable_prof" = "no"; then 72: PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o" 73: fi 74: 75: AC_ARG_WITH(debug, 76: [ --with-debug specifies option -g to compile with debug info 77: --without-debug omits the -g switch and creates smaller images on 78: machines where "strip" has problems with gcc style 79: debugging informations.], 80: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi) 81: 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="$withval") 88: 89: GCC_LD="\$(GCC)" 90: EC_MODE="false" 91: EC="" 92: engine2="engine2.o" 93: engine_fast2="engine-fast2.o" 94: no_dynamic="" 95: image_i="" 96: signals_o="io.o signals.o" 97: 98: AC_ARG_WITH(ec, 99: AC_HELP_STRING([--with-ec=<arch>], 100: [ Build gforth for systems without OS.]), 101: [if test "$withval" = "no"; then 102: echo "defining hosted system" 103: else 104: echo "defining standalone system (${withval})" 105: AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS]) 106: EC_MODE="true" 107: EC="-ec" 108: engine2="" 109: engine_fast2="" 110: no_dynamic="-DNO_DYNAMIC" 111: image_i="image.i" 112: if test "$withval" != "yes"; then 113: signals_o="io-${withval}.o" 114: else 115: signals_o="io.o" 116: fi 117: GCC_PATH=$(which $CC) 118: LIB_PATH=${GCC_PATH%/*/*} 119: GCC_LD="\$(LD)" 120: platform=${withval} 121: fi]) 122: 123: #variables mentioned in INSTALL 124: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.]) 125: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).]) 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).]) 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: 129: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)]) 130: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)]) 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)]) 138: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)]) 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]) 141: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches]) 142: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code]) 143: AC_ARG_VAR(asmcomment, [assembler comment start string]) 144: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)]) 145: 146: #set up feature test macros, so the tests get them right: 147: # turn on all POSIX, SUSv3, and GNU features if available 148: AC_GNU_SOURCE 149: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro]) 150: 151: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular 152: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE, 153: dnl but not for _XOPEN_SOURCE) 154: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro]) 155: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro]) 156: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro]) 157: # turn on large file support with 64-bit off_t where available 158: AC_SYS_LARGEFILE 159: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro]) 160: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro]) 161: 162: #currently we force direct threading this way. Eventually we should 163: #setup in the arch and engine files right 164: 165: AC_PROG_CC 166: 167: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher) 168: 169: AC_MSG_CHECKING([whether to use two dispatches per conditional branch]) 170: test x$condbranch_opt = x && 171: if ($CC -v 2>&1 |grep -q 'gcc version 3'); then 172: condbranch_opt=0 173: else 174: condbranch_opt=1 175: fi 176: AC_MSG_RESULT($condbranch_opt) 177: AC_SUBST(condbranch_opt) 178: 179: AC_SUBST(CC) 180: AC_SUBST(GCC_LD) 181: AC_SUBST(DEBUGFLAG) 182: AC_SUBST(EC) 183: AC_SUBST(EC_MODE) 184: AC_SUBST(engine2) 185: AC_SUBST(engine_fast2) 186: AC_SUBST(no_dynamic) 187: AC_SUBST(image_i) 188: AC_SUBST(signals_o) 189: 190: #this is used to disable some (not generally essential) part of the 191: #Makefile that some makes don't grok. It would be better to test for 192: #this specific Makefile feature than the make version. 193: AC_MSG_CHECKING(make type) 194: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'` 195: GNUMAKE='#' 196: test "$make_type" = "GNU Make" && GNUMAKE='' 197: AC_MSG_RESULT($make_type) 198: AC_SUBST(GNUMAKE) 199: 200: AC_MSG_CHECKING([whether the linker accepts -export-dynamic]) 201: OLDLDFLAGS=$LDFLAGS 202: LDFLAGS="$LDFLAGS -export-dynamic" 203: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0 204: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no) 205: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no) 206: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS 207: AC_MSG_RESULT($ac_export_dynamic) 208: 209: #terminology is a bit unusual here: The host is the system on which 210: #gforth will run; the system on which configure will run is the `build' 211: AC_CANONICAL_HOST 212: case "$host_cpu" in 213: arm*) 214: machine=arm 215: CFLAGS="$CFLAGS -fomit-frame-pointer" 216: if test x$platform = xnxt; then 217: CFLAGS="$CFLAGS -mthumb -mthumb-interwork" 218: fi 219: if test -z $arm_cacheflush; then 220: no_dynamic_default=1 221: arm_cacheflush=arch/arm/cacheflush0 222: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) 223: fi 224: AC_LIBSOURCES([../arch/arm/cacheflush0, ../arch/arm/cacheflush1, ../arch/arm/cacheflush2]) 225: AC_LIBOBJ(../$arm_cacheflush) 226: #longer skipcodes lead to problems on ARM, and it uses 227: #only 4-byte alignment anyway 228: test "$skipcode" || skipcode="nop" 229: ;; 230: hppa*) 231: machine=hppa 232: $srcdir/mkinstalldirs arch/hppa 233: AC_LIBOBJ(../arch/hppa/cache) 234: #-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net> 235: LDFLAGS="$LDFLAGS -Xlinker -N" 236: LIBS="$LIBS -L/lib/pa1.1/" 237: ;; 238: sparc*) 239: machine=sparc 240: ;; 241: i386) 242: machine=386 243: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" 244: ;; 245: i486) 246: machine=386 247: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -m486" 248: ;; 249: i*86) 250: machine=386 251: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" 252: CFLAGS_1="$CFLAGS" 253: CFLAGS="$CFLAGS -march=pentium" 254: AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486") 255: ;; 256: x86_64) 257: case $CC 258: in 259: *-m32*) 260: machine=386 261: CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" 262: CFLAGS_1="$CFLAGS" 263: CFLAGS="$CFLAGS -march=athlon64" 264: ;; 265: *) 266: machine=amd64 267: ;; 268: esac 269: ;; 270: ia64*) 271: machine=ia64 272: AC_LIBOBJ(../arch/ia64/flush_icache_block) 273: test "$skipcode" || skipcode="nop.i 0" 274: #".skip 16" passes the test below, 275: # but gives an assembler error in engine 276: ;; 277: m68k) 278: machine=m68k 279: CFLAGS="$CFLAGS -fomit-frame-pointer" 280: if test "$host_os" = "nextstep3" 281: then 282: AC_LIBOBJ(termios) 283: fi 284: ;; 285: mips*) 286: machine=mips 287: #dynamic native code has the following problems on MIPS: 288: # 289: #1) J/JAL seems relocatable, but is are only 290: #relocatable within a 256MB-segment. While we try to 291: #get the linker to arrange this, there is no guarantee 292: #that this will succeed (and if the user uses a lot of 293: #memory, it is likely to fail). 294: # 295: #2) The way we generate dynamic native code may 296: #violate MIPS architectural restrictions (in 297: #particular, the delay slots of LW, MFLO, etc.) 298: # 299: #Therefore we disable dynamic native code by default: 300: if test -z $no_dynamic_default; then 301: no_dynamic_default=1 302: AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)]) 303: fi 304: ;; 305: alpha*) 306: machine=alpha 307: #full IEEE FP support for more uniformity across platforms: 308: CFLAGS="$CFLAGS -mieee" 309: ;; 310: power*|rs6000) 311: machine=power 312: $srcdir/mkinstalldirs arch/power 313: AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)]) 314: #long long is broken on (at least) gcc-2.95.* for PPC 315: test x$ac_cv_sizeof_long_long = x && 316: ($CC -v 2>&1 |grep -q 'gcc version 2.95') && 317: ac_cv_sizeof_long_long=0 318: ;; 319: *) 320: AC_MSG_WARN([Using a generic machine description]) 321: AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)]) 322: AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!]) 323: machine=generic 324: #I-cache flushing would be needed for dynamic code generation 325: if test -z $no_dynamic_default; then 326: no_dynamic_default=1 327: AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) 328: fi 329: esac 330: AC_SUBST(host) 331: 332: MAKEINC="" 333: 334: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)" 335: if test x$EC_MODE = xtrue 336: then 337: echo "Check for arch/$machine/$platform/gforth.ld" 338: if test -f arch/$machine/$platform/gforth.ld 339: then 340: LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS" 341: if test x$platform = xnxt; then 342: 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 $LIBS" 343: fi 344: fi 345: if test -f arch/$machine/$platform/make.inc 346: then 347: MAKEINC="include ../arch/$machine/$platform/make.inc" 348: fi 349: fi 350: AC_SUBST(MAKEINC) 351: 352: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1 353: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST, 354: [number of registers in the default stack cache state for gforth-fast and gforth-native]) 355: 356: test x$GCC_PR15242_WORKAROUND = x || 357: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND, 358: [force (1) or forbid (0) use of a workaround for a gcc performance bug]) 359: 360: dnl AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code 361: dnl generation on gccs affected by PR15242]) 362: 363: 364: if test "${enable_force_ll+set}" = set; then 365: ac_includes_default="$ac_includes_default 366: #include \"arch/generic/128bit.h\"" 367: fi 368: 369: dnl the following macro produces a warning with autoconf-2.1 370: AC_CHECK_SIZEOF(char *) 371: case "$ac_cv_sizeof_char_p" in 372: 2) 373: wordsize=16 374: ;; 375: 4) 376: wordsize=32 377: ;; 378: 8) 379: wordsize=64 380: ;; 381: esac 382: 383: AC_CHECK_SIZEOF(void *) 384: case "$ac_cv_sizeof_void_p" in 385: 2) 386: vwordsize=16 387: ;; 388: 4) 389: vwordsize=32 390: ;; 391: 8) 392: vwordsize=64 393: ;; 394: esac 395: 396: AC_CHECK_SIZEOF(char) 397: AC_CHECK_SIZEOF(short) 398: AC_CHECK_SIZEOF(int) 399: AC_CHECK_SIZEOF(long) 400: AC_CHECK_SIZEOF(long long) 401: AC_CHECK_SIZEOF(intptr_t) 402: AC_CHECK_SIZEOF(int128_t) 403: AC_CHECK_SIZEOF(uint128_t) 404: 405: AC_MSG_CHECKING([for a C type for cells]) 406: ac_cv_int_type_cell=none 407: case "$ac_cv_sizeof_char_p" in 408: $ac_cv_sizeof_int) 409: ac_cv_int_type_cell=int 410: ;; 411: $ac_cv_sizeof_short) 412: ac_cv_int_type_cell=short 413: ;; 414: $ac_cv_sizeof_char) 415: ac_cv_int_type_cell=char 416: ;; 417: $ac_cv_sizeof_long) 418: ac_cv_int_type_cell=long 419: ;; 420: $ac_cv_sizeof_long_long) 421: ac_cv_int_type_cell="long long" 422: ;; 423: $ac_cv_sizeof_intptr_t) 424: ac_cv_int_type_cell="intptr_t" 425: ;; 426: $ac_cv_sizeof_int128_t) 427: ac_cv_int_type_cell="int128_t" 428: ;; 429: esac 430: AC_MSG_RESULT($ac_cv_int_type_cell) 431: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer]) 432: 433: AC_MSG_CHECKING([for a C type for wydes]) 434: ac_cv_wyde_type_cell=none 435: case 2 in 436: $ac_cv_sizeof_int) 437: ac_cv_wyde_type_cell=int 438: ;; 439: $ac_cv_sizeof_short) 440: ac_cv_wyde_type_cell=short 441: ;; 442: $ac_cv_sizeof_char) 443: ac_cv_wyde_type_cell=char 444: ;; 445: $ac_cv_sizeof_long) 446: ac_cv_wyde_type_cell=long 447: ;; 448: $ac_cv_sizeof_long_long) 449: ac_cv_wyde_type_cell="long long" 450: ;; 451: $ac_cv_sizeof_intptr_t) 452: ac_cv_wyde_type_cell="intptr_t" 453: ;; 454: $ac_cv_sizeof_int128_t) 455: ac_cv_wyde_type_cell="int128_t" 456: ;; 457: esac 458: AC_MSG_RESULT($ac_cv_wyde_type_cell) 459: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long]) 460: 461: AC_MSG_CHECKING([for a C type for tetrabytes]) 462: ac_cv_tetrabyte_type_cell=none 463: case 4 in 464: $ac_cv_sizeof_int) 465: ac_cv_tetrabyte_type_cell=int 466: ;; 467: $ac_cv_sizeof_short) 468: ac_cv_tetrabyte_type_cell=short 469: ;; 470: $ac_cv_sizeof_char) 471: ac_cv_tetrabyte_type_cell=char 472: ;; 473: $ac_cv_sizeof_long) 474: ac_cv_tetrabyte_type_cell=long 475: ;; 476: $ac_cv_sizeof_long_long) 477: ac_cv_tetrabyte_type_cell="long long" 478: ;; 479: $ac_cv_sizeof_intptr_t) 480: ac_cv_tetrabyte_type_cell="intptr_t" 481: ;; 482: $ac_cv_sizeof_int128_t) 483: ac_cv_tetrabyte_type_cell="int128_t" 484: ;; 485: esac 486: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell) 487: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long]) 488: 489: AC_MSG_CHECKING([for a C type for double-cells]) 490: ac_cv_int_type_double_cell=none 491: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in 492: $ac_cv_sizeof_short) 493: ac_cv_int_type_double_cell=short 494: ;; 495: $ac_cv_sizeof_int) 496: ac_cv_int_type_double_cell=int 497: ;; 498: $ac_cv_sizeof_long) 499: ac_cv_int_type_double_cell=long 500: ;; 501: $ac_cv_sizeof_long_long) 502: ac_cv_int_type_double_cell="long long" 503: ;; 504: $ac_cv_sizeof_intptr_t) 505: ac_cv_int_type_double_cell="intptr_t" 506: ;; 507: $ac_cv_sizeof_int128_t) 508: ac_cv_int_type_double_cell="int128_t" 509: ;; 510: esac 511: AC_MSG_RESULT($ac_cv_int_type_double_cell) 512: 513: AC_MSG_CHECKING([for a C type for unsigned double-cells]) 514: ac_cv_int_type_double_ucell=none 515: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in 516: $ac_cv_sizeof_short) 517: ac_cv_int_type_double_ucell="unsigned short" 518: ;; 519: $ac_cv_sizeof_int) 520: ac_cv_int_type_double_ucell="unsigned int" 521: ;; 522: $ac_cv_sizeof_long) 523: ac_cv_int_type_double_ucell="unsigned long" 524: ;; 525: $ac_cv_sizeof_long_long) 526: ac_cv_int_type_double_ucell="unsigned long long" 527: ;; 528: $ac_cv_sizeof_intptr_t) 529: ac_cv_int_type_double_ucell="unsigned intptr_t" 530: ;; 531: $ac_cv_sizeof_uint128_t) 532: ac_cv_int_type_double_ucell="uint128_t" 533: ;; 534: esac 535: AC_MSG_RESULT($ac_cv_int_type_double_ucell) 536: 537: if test "$ac_cv_int_type_double_cell" = none || \ 538: test "$ac_cv_int_type_double_ucell" = none 539: then 540: AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.]) 541: AC_LIBOBJ(dblsub) 542: AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine]) 543: else 544: AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer]) 545: AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer]) 546: fi 547: 548: AC_TYPE_OFF_T 549: AC_CHECK_SIZEOF(off_t) 550: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p 551: ac_small_off_t=$? 552: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell]) 553: 554: ENGINE_FLAGS= 555: AC_SUBST(ENGINE_FLAGS) 556: 557: # Try if GCC understands -fno-gcse 558: 559: AC_MSG_CHECKING([if $CC understands -fno-gcse]) 560: CFLAGS_1="$CFLAGS" 561: CFLAGS="$CFLAGS -fno-gcse" 562: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no) 563: CFLAGS="$CFLAGS_1" 564: AC_MSG_RESULT($ac_nogcse) 565: 566: # Try if GCC understands -fno-strict-aliasing 567: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing]) 568: CFLAGS_1="$CFLAGS" 569: CFLAGS="$CFLAGS -fno-strict-aliasing" 570: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no) 571: CFLAGS="$CFLAGS_1" 572: AC_MSG_RESULT($ac_nostrictaliasing) 573: 574: # Try if GCC understands -fno-crossjumping 575: AC_MSG_CHECKING([if $CC understands -fno-crossjumping]) 576: CFLAGS_1="$CFLAGS" 577: CFLAGS="$CFLAGS -fno-crossjumping" 578: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no) 579: CFLAGS="$CFLAGS_1" 580: AC_MSG_RESULT($ac_nocrossjumping) 581: 582: # Try if GCC understands -fno-reorder-blocks 583: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks]) 584: CFLAGS_1="$CFLAGS" 585: CFLAGS="$CFLAGS -fno-reorder-blocks" 586: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no) 587: CFLAGS="$CFLAGS_1" 588: AC_MSG_RESULT($ac_noreorder_blocks) 589: 590: # Try if GCC understands -falign-labels=1 591: AC_MSG_CHECKING([if $CC understands -falign-labels=1]) 592: CFLAGS_1="$CFLAGS" 593: CFLAGS="$CFLAGS -falign-labels=1" 594: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no) 595: CFLAGS="$CFLAGS_1" 596: AC_MSG_RESULT($ac_align_labels) 597: 598: # Try if GCC understands -falign-loops=1 599: AC_MSG_CHECKING([if $CC understands -falign-loops=1]) 600: CFLAGS_1="$CFLAGS" 601: CFLAGS="$CFLAGS -falign-loops=1" 602: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no) 603: CFLAGS="$CFLAGS_1" 604: AC_MSG_RESULT($ac_align_loops) 605: 606: # Try if GCC understands -falign-jumps=1 607: AC_MSG_CHECKING([if $CC understands -falign-jumps=1]) 608: CFLAGS_1="$CFLAGS" 609: CFLAGS="$CFLAGS -falign-jumps=1" 610: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no) 611: CFLAGS="$CFLAGS_1" 612: AC_MSG_RESULT($ac_align_jumps) 613: 614: # Try if GCC understands __attribute__((unused)) 615: AC_MSG_CHECKING([how to suppress 'unused variable' warnings]) 616: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',) 617: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables]) 618: AC_MSG_RESULT($MAYBE_UNUSED) 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,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX]) 664: 665: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>) 666: #This magic incantation seems to be completely undocumented. 667: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true]) 668: 669: dnl Now a little support for DOS/DJGCC 670: AC_SUBST(GFORTH_EXE) 671: GFORTH_EXE="" 672: AC_SUBST(GFORTHFAST_EXE) 673: GFORTHFAST_EXE="" 674: AC_SUBST(GFORTHITC_EXE) 675: GFORTHITC_EXE="" 676: AC_SUBST(GFORTHDITC_EXE) 677: GFORTHDITC_EXE="" 678: 679: AC_SUBST(FORTHSIZES) 680: 681: dnl if test "$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 Checks for library functions 788: dnl This check is just for making later checks link with libm. 789: dnl using sin here is no good idea since it is built-into gcc and typechecked 790: AC_CHECK_LIB(m,asin) 791: AC_CHECK_LIB(dl,dlopen) 792: dnl check for libffi 2.x 793: AC_CHECK_LIB(ffi,ffi_call) 794: if test $ac_cv_lib_ffi_ffi_call = yes 795: then 796: LIBFFIFLAG="true" 797: FFCALLFLAG="false" 798: OLDCALLFLAG="false" 799: AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0]) 800: else 801: dnl check for ffcall libraries 802: dnl unfortunately, these four calls are separated out into a library each. 803: AC_CHECK_LIB(avcall,__builtin_avcall) 804: AC_CHECK_LIB(callback,__vacall_r) 805: AC_CHECK_LIB(vacall,vacall) 806: AC_CHECK_LIB(trampoline,alloc_trampoline) 807: LIBFFIFLAG="false" 808: FFCALLFLAG="false" 809: OLDCALLFLAG="true" 810: 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]) 811: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries]) 812: fi 813: AC_SUBST(LIBFFIFLAG) 814: AC_SUBST(FFCALLFLAG) 815: AC_SUBST(OLDCALLFLAG) 816: if test "$host_os" != "nextstep3" 817: then 818: AC_FUNC_MEMCMP 819: fi 820: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh) 821: AC_FUNC_FSEEKO 822: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep) 823: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>]) 824: AC_DECL_SYS_SIGLIST 825: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)]) 826: AC_CHECK_FUNCS(expm1 log1p) 827: AC_REPLACE_FUNCS(rint ecvt) 828: dnl No check for select, because our replacement is no good under 829: dnl anything but DOS 830: AC_CHECK_HEADERS(sys/mman.h fnmatch.h) 831: AC_FUNC_FNMATCH 832: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch) 833: AC_CHECK_FUNCS(mmap sysconf getpagesize) 834: AM_PATH_LISPDIR 835: 836: kernel_fi=kernl${vwordsize}${bytesex}.fi 837: include_fi=kernl${wordsize}${bytesex}${EC}.fi 838: AC_SUBST(kernel_fi) 839: AC_SUBST(include_fi) 840: 841: #this breaks bindists 842: #dnl replace srource directory by absolute value 843: #if test $srcdir = "."; then srcdir=`pwd` 844: #fi 845: 846: AC_SUBST(machine) 847: AC_CONFIG_FILES([ 848: Makefile 849: Makedist 850: gforthmi 851: vmgen 852: machpc.fs 853: envos.fs 854: engine/Makefile 855: engine/libcc.h 856: doc/version.texi 857: build-ec ]) 858: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h 859: chmod +x gforthmi 860: chmod +x vmgen 861: chmod +x build-ec 862: test -d kernel||mkdir kernel 863: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION 864: ln -s ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],[[PACKAGE_VERSION=$PACKAGE_VERSION]]) 865: AC_OUTPUT 866: