File:  [gforth] / gforth / configure.in
Revision 1.244: download - view: text, annotated - select for diffs
Tue Aug 19 20:18:58 2008 UTC (11 years, 3 months ago) by anton
Branches: MAIN
CVS tags: HEAD
added cstr.fs mkdir.fs C interface files

    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: AC_ARG_VAR(LIBCC_BUILD_SRC, [(Additional) libcc interface source files that should be processed on building and installation (default none)])
  112: 
  113: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
  114: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
  115: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
  116: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
  117: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
  118: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
  119: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
  120: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
  121: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
  122: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
  123: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
  124: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
  125: AC_ARG_VAR(asmcomment, [assembler comment start string])
  126: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
  127: 
  128: #set up feature test macros, so the tests get them right:
  129: # turn on all POSIX, SUSv3, and GNU features if available
  130: AC_GNU_SOURCE
  131: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
  132: 
  133: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
  134: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
  135: dnl but not for _XOPEN_SOURCE)
  136: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
  137: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
  138: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
  139: # turn on large file support with 64-bit off_t where available
  140: AC_SYS_LARGEFILE
  141: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
  142: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
  143: 
  144: #currently we force direct threading this way.  Eventually we should
  145: #setup in the arch and engine files right
  146: 
  147: AC_PROG_CC
  148: 
  149: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
  150: 
  151: AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
  152: test x$condbranch_opt = x && 
  153: if ($CC -v 2>&1 |grep 'gcc version 3' >/dev/null); then
  154:    condbranch_opt=0
  155: else
  156:    condbranch_opt=1
  157: fi
  158: AC_MSG_RESULT($condbranch_opt)
  159: AC_SUBST(condbranch_opt)
  160: 
  161: AC_SUBST(CC)
  162: AC_SUBST(GCC_LD)
  163: AC_SUBST(DEBUGFLAG)
  164: AC_SUBST(EC)
  165: AC_SUBST(EC_MODE)
  166: AC_SUBST(engine2)
  167: AC_SUBST(engine_fast2)
  168: AC_SUBST(no_dynamic)
  169: AC_SUBST(image_i)
  170: AC_SUBST(signals_o)
  171: 
  172: #this is used to disable some (not generally essential) part of the
  173: #Makefile that some makes don't grok.  It would be better to test for
  174: #this specific Makefile feature than the make version.
  175: AC_MSG_CHECKING(make type)
  176: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
  177: GNUMAKE='#'
  178: test "$make_type" = "GNU Make" && GNUMAKE=''
  179: AC_MSG_RESULT($make_type)
  180: AC_SUBST(GNUMAKE)
  181: 
  182: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
  183: OLDLDFLAGS=$LDFLAGS
  184: LDFLAGS="$LDFLAGS -export-dynamic"
  185: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
  186: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
  187: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
  188: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
  189: AC_MSG_RESULT($ac_export_dynamic)
  190: 
  191: #terminology is a bit unusual here: The host is the system on which
  192: #gforth will run; the system on which configure will run is the `build'
  193: AC_CANONICAL_HOST
  194: case "$host_cpu" in
  195: 	arm*)
  196: 		machine=arm
  197: 		CFLAGS="$CFLAGS -fomit-frame-pointer"
  198: 		if test x$platform = xnxt; then
  199: 		   CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
  200: 		fi
  201: 		if test -z $arm_cacheflush; then
  202: 		   case "$host_os" in
  203: 		     *linux*)
  204: 			arm_cacheflush=arch/arm/cacheflush-linux 
  205: 			;;
  206: 		     *)   
  207: 			no_dynamic_default=1
  208: 			arm_cacheflush=arch/arm/cacheflush0
  209: 			AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
  210: 			;;
  211:                    esac
  212: 		fi
  213:                 AC_LIBSOURCES([../arch/arm/cacheflush0, dnl
  214: 			       ../arch/arm/cacheflush-linux])
  215:                 AC_LIBOBJ(../$arm_cacheflush)
  216:                 #longer skipcodes lead to problems on ARM, and it uses
  217:                 #only 4-byte alignment anyway
  218: 		test "$skipcode" || skipcode="nop"
  219: 		;;
  220: 	hppa*)
  221: 		machine=hppa
  222: 		$srcdir/mkinstalldirs arch/hppa
  223: 		AC_LIBOBJ(../arch/hppa/cache)
  224: 		#-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
  225: 		LDFLAGS="$LDFLAGS -Xlinker -N"
  226: 		LIBS="$LIBS -L/lib/pa1.1/"
  227: 		;;
  228: 	sparc*)
  229: 		machine=sparc
  230: 		;;
  231: 	i386)
  232: 		machine=386
  233: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  234: 		;;
  235: 	i486)
  236: 		machine=386
  237: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -m486"
  238: 		;;
  239: 	i*86)
  240: 		machine=386
  241: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  242: 		CFLAGS_1="$CFLAGS"
  243: 		CFLAGS="$CFLAGS -march=pentium"
  244: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
  245: 		;;
  246: 	x86_64)
  247: 		case $CC
  248: 		in
  249: 		    *-m32*)
  250: 		    	machine=386
  251: 			CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  252: 			CFLAGS_1="$CFLAGS"
  253: 			CFLAGS="$CFLAGS -march=athlon64"
  254: 			;;
  255: 		    *)
  256: 		    	machine=amd64
  257: 			;;
  258: 		esac
  259: 		;;
  260: 	ia64*)
  261: 		machine=ia64
  262: 		AC_LIBOBJ(../arch/ia64/flush_icache_block)
  263: 		test "$skipcode" || skipcode="nop.i 0"
  264: 		#".skip 16" passes the test below,
  265: 		# but gives an assembler error in engine
  266: 		;;
  267:         m68k)
  268: 		machine=m68k
  269: 		CFLAGS="$CFLAGS -fomit-frame-pointer"
  270: 		if test "$host_os" = "nextstep3"
  271: 		then
  272: 			AC_LIBOBJ(termios)
  273: 		fi
  274: 		;;
  275: 	mips*)
  276: 		machine=mips
  277: 		#dynamic native code has the following problems on MIPS:
  278: 		#
  279: 		#1) J/JAL seems relocatable, but is are only
  280: 		#relocatable within a 256MB-segment.  While we try to
  281: 		#get the linker to arrange this, there is no guarantee
  282: 		#that this will succeed (and if the user uses a lot of
  283: 		#memory, it is likely to fail).
  284: 		#
  285: 		#2) The way we generate dynamic native code may
  286: 		#violate MIPS architectural restrictions (in
  287: 		#particular, the delay slots of LW, MFLO, etc.)
  288: 		#
  289: 		#Therefore we disable dynamic native code by default:
  290: 		if test -z $no_dynamic_default; then
  291: 		    no_dynamic_default=1
  292: 		    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
  293: 		fi
  294: 		;;
  295: 	alpha*)
  296: 		machine=alpha
  297: 		#full IEEE FP support for more uniformity across platforms:
  298: 		CFLAGS="$CFLAGS -mieee"
  299: 		;;
  300: 	power*|rs6000)
  301: 		machine=power
  302: 		$srcdir/mkinstalldirs arch/power
  303: 		AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
  304: 		#long long is broken on (at least) gcc-2.95.* for PPC
  305: 		test x$ac_cv_sizeof_long_long = x && 
  306: 		($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) &&
  307: 		ac_cv_sizeof_long_long=0
  308:                 #The only architecture with enough callee-saved registers
  309:                 test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
  310:                 #or use 2, hardly slower at run-time and starts up faster
  311: 		;;
  312: 	*)
  313: 		AC_MSG_WARN([Using a generic machine description])
  314: 		AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
  315: 		AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
  316: 		machine=generic
  317: 		#I-cache flushing would be needed for dynamic code generation
  318: 		if test -z $no_dynamic_default; then
  319: 		    no_dynamic_default=1
  320: 		    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
  321: 		fi
  322: esac
  323: AC_SUBST(host)
  324: 
  325: MAKEINC=""
  326: 
  327: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
  328: if test x$EC_MODE = xtrue
  329: then
  330: 	echo "Check for arch/$machine/$platform/gforth.ld"
  331: 	if test -f arch/$machine/$platform/gforth.ld
  332: 	then
  333: 		LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
  334: 		if test x$platform = xnxt; then
  335: 			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 $LIBS"
  336: 		fi
  337: 	fi
  338: 	if test -f arch/$machine/$platform/make.inc
  339: 	then
  340: 		MAKEINC="include ../arch/$machine/$platform/make.inc"
  341: 	fi
  342: fi
  343: AC_SUBST(MAKEINC)
  344: 
  345: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
  346: 
  347: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
  348: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
  349: 		   [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
  350: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
  351: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
  352: 		   [number of registers in the default stack cache state for gforth-fast and gforth-native])
  353: 
  354: test x$GCC_PR15242_WORKAROUND = x ||
  355: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
  356:                    [force (1) or forbid (0) use of a workaround for a gcc performance bug])
  357: 
  358: dnl the following macro produces a warning with autoconf-2.1
  359: AC_CHECK_SIZEOF(char *)
  360: case "$ac_cv_sizeof_char_p" in
  361:   2)
  362:     wordsize=16
  363:     ;;
  364:   4)
  365:     wordsize=32
  366:     ;;
  367:   8)
  368:     wordsize=64
  369:     ;;
  370: esac
  371: 
  372: AC_CHECK_SIZEOF(void *)
  373: case "$ac_cv_sizeof_void_p" in
  374:   2)
  375:     vwordsize=16
  376:     ;;
  377:   4)
  378:     vwordsize=32
  379:     ;;
  380:   8)
  381:     vwordsize=64
  382:     ;;
  383: esac
  384: 
  385: AC_CHECK_SIZEOF(char)
  386: AC_CHECK_SIZEOF(short)
  387: AC_CHECK_SIZEOF(int)
  388: AC_CHECK_SIZEOF(long)
  389: AC_CHECK_SIZEOF(long long)
  390: AC_CHECK_SIZEOF(intptr_t)
  391: AC_CHECK_SIZEOF(int128_t)
  392: AC_CHECK_SIZEOF(uint128_t)
  393: 
  394: AC_MSG_CHECKING([for a C type for cells])
  395: ac_cv_int_type_cell=none
  396: case "$ac_cv_sizeof_char_p" in
  397:   $ac_cv_sizeof_int)
  398:     ac_cv_int_type_cell=int
  399:     ;;
  400:   $ac_cv_sizeof_short)
  401:     ac_cv_int_type_cell=short
  402:     ;;
  403:   $ac_cv_sizeof_char)
  404:     ac_cv_int_type_cell=char
  405:     ;;
  406:   $ac_cv_sizeof_long)
  407:     ac_cv_int_type_cell=long
  408:     ;;
  409:   $ac_cv_sizeof_long_long)
  410:     ac_cv_int_type_cell="long long"
  411:     ;;
  412:   $ac_cv_sizeof_intptr_t)
  413:     ac_cv_int_type_cell="intptr_t"
  414:     ;;
  415: esac
  416: AC_MSG_RESULT($ac_cv_int_type_cell)
  417: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
  418: 
  419: AC_MSG_CHECKING([for a C type for wydes])
  420: ac_cv_wyde_type_cell=none
  421: case 2 in
  422:   $ac_cv_sizeof_int)
  423:     ac_cv_wyde_type_cell=int
  424:     ;;
  425:   $ac_cv_sizeof_short)
  426:     ac_cv_wyde_type_cell=short
  427:     ;;
  428:   $ac_cv_sizeof_char)
  429:     ac_cv_wyde_type_cell=char
  430:     ;;
  431:   $ac_cv_sizeof_long)
  432:     ac_cv_wyde_type_cell=long
  433:     ;;
  434:   $ac_cv_sizeof_long_long)
  435:     ac_cv_wyde_type_cell="long long"
  436:     ;;
  437:   $ac_cv_sizeof_intptr_t)
  438:     ac_cv_wyde_type_cell="intptr_t"
  439:     ;;
  440: esac
  441: AC_MSG_RESULT($ac_cv_wyde_type_cell)
  442: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
  443: 
  444: AC_MSG_CHECKING([for a C type for tetrabytes])
  445: ac_cv_tetrabyte_type_cell=none
  446: case 4 in
  447:   $ac_cv_sizeof_int)
  448:     ac_cv_tetrabyte_type_cell=int
  449:     ;;
  450:   $ac_cv_sizeof_short)
  451:     ac_cv_tetrabyte_type_cell=short
  452:     ;;
  453:   $ac_cv_sizeof_char)
  454:     ac_cv_tetrabyte_type_cell=char
  455:     ;;
  456:   $ac_cv_sizeof_long)
  457:     ac_cv_tetrabyte_type_cell=long
  458:     ;;
  459:   $ac_cv_sizeof_long_long)
  460:     ac_cv_tetrabyte_type_cell="long long"
  461:     ;;
  462:   $ac_cv_sizeof_intptr_t)
  463:     ac_cv_tetrabyte_type_cell="intptr_t"
  464:     ;;
  465: esac
  466: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
  467: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
  468: 
  469: AC_MSG_CHECKING([for a C type for double-cells])
  470: ac_cv_int_type_double_cell=none
  471: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
  472:   $ac_cv_sizeof_short)
  473:     ac_cv_int_type_double_cell=short
  474:     ;;
  475:   $ac_cv_sizeof_int)
  476:     ac_cv_int_type_double_cell=int
  477:     ;;
  478:   $ac_cv_sizeof_long)
  479:     ac_cv_int_type_double_cell=long
  480:     ;;
  481:   $ac_cv_sizeof_long_long)
  482:     ac_cv_int_type_double_cell="long long"
  483:     ;;
  484:   $ac_cv_sizeof_intptr_t)
  485:     ac_cv_int_type_double_cell="intptr_t"
  486:     ;;
  487:   $ac_cv_sizeof_int128_t)
  488:     ac_cv_int_type_double_cell="int128_t"
  489:     ;;
  490: esac
  491: AC_MSG_RESULT($ac_cv_int_type_double_cell)
  492: 
  493: AC_MSG_CHECKING([for a C type for unsigned double-cells])
  494: ac_cv_int_type_double_ucell=none
  495: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
  496:   $ac_cv_sizeof_short)
  497:     ac_cv_int_type_double_ucell="unsigned short"
  498:     ;;
  499:   $ac_cv_sizeof_int)
  500:     ac_cv_int_type_double_ucell="unsigned int"
  501:     ;;
  502:   $ac_cv_sizeof_long)
  503:     ac_cv_int_type_double_ucell="unsigned long"
  504:     ;;
  505:   $ac_cv_sizeof_long_long)
  506:     ac_cv_int_type_double_ucell="unsigned long long"
  507:     ;;
  508:   $ac_cv_sizeof_intptr_t)
  509:     ac_cv_int_type_double_ucell="unsigned intptr_t"
  510:     ;;
  511:   $ac_cv_sizeof_uint128_t)
  512:     ac_cv_int_type_double_ucell="uint128_t"
  513:     ;;
  514: esac
  515: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
  516: 
  517: if test "$ac_cv_int_type_double_cell" != none && \
  518:    test "$ac_cv_int_type_double_ucell" != none
  519: then
  520: 	AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
  521: 	AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
  522:         OPTS=-ll
  523: else
  524:         if test "$ac_cv_sizeof_char_p" = 8; then
  525:            OPTS="-ll -noll"
  526:         else
  527:            OPTS=-noll
  528:         fi
  529: fi
  530: 
  531: if grep FORCE_REG arch/$machine/machine.h >/dev/null; then
  532:    OPTS2=''
  533:    for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done
  534:    OPTS="$OPTS2 $OPTS"
  535: else
  536:   AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG])
  537: fi
  538: AC_SUBST(OPTS)
  539: 
  540: AC_TYPE_OFF_T
  541: AC_CHECK_SIZEOF(off_t)
  542: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
  543: ac_small_off_t=$?
  544: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
  545: 
  546: ENGINE_FLAGS=
  547: AC_SUBST(ENGINE_FLAGS)
  548: 
  549: # Try if GCC understands -fno-gcse
  550: 
  551: AC_MSG_CHECKING([if $CC understands -fno-gcse])
  552: CFLAGS_1="$CFLAGS"
  553: CFLAGS="$CFLAGS -fno-gcse"
  554: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
  555: CFLAGS="$CFLAGS_1"
  556: AC_MSG_RESULT($ac_nogcse)
  557: 
  558: # Try if GCC understands -fno-strict-aliasing
  559: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
  560: CFLAGS_1="$CFLAGS"
  561: CFLAGS="$CFLAGS -fno-strict-aliasing"
  562: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
  563: CFLAGS="$CFLAGS_1"
  564: AC_MSG_RESULT($ac_nostrictaliasing)
  565: 
  566: # Try if GCC understands -fno-crossjumping
  567: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
  568: CFLAGS_1="$CFLAGS"
  569: CFLAGS="$CFLAGS -fno-crossjumping"
  570: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
  571: CFLAGS="$CFLAGS_1"
  572: AC_MSG_RESULT($ac_nocrossjumping)
  573: 
  574: # Try if GCC understands -fno-reorder-blocks
  575: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
  576: CFLAGS_1="$CFLAGS"
  577: CFLAGS="$CFLAGS -fno-reorder-blocks"
  578: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
  579: CFLAGS="$CFLAGS_1"
  580: AC_MSG_RESULT($ac_noreorder_blocks)
  581: 
  582: # Try if GCC understands -falign-labels=1
  583: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
  584: CFLAGS_1="$CFLAGS"
  585: CFLAGS="$CFLAGS -falign-labels=1"
  586: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
  587: CFLAGS="$CFLAGS_1"
  588: AC_MSG_RESULT($ac_align_labels)
  589: 
  590: # Try if GCC understands -falign-loops=1
  591: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
  592: CFLAGS_1="$CFLAGS"
  593: CFLAGS="$CFLAGS -falign-loops=1"
  594: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
  595: CFLAGS="$CFLAGS_1"
  596: AC_MSG_RESULT($ac_align_loops)
  597: 
  598: # Try if GCC understands -falign-jumps=1
  599: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
  600: CFLAGS_1="$CFLAGS"
  601: CFLAGS="$CFLAGS -falign-jumps=1"
  602: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
  603: CFLAGS="$CFLAGS_1"
  604: AC_MSG_RESULT($ac_align_jumps)
  605: 
  606: # Try if GCC understands __attribute__((unused))
  607: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
  608: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
  609: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
  610: AC_MSG_RESULT($MAYBE_UNUSED)
  611: 
  612: #try if m4 understands -s
  613: AC_MSG_CHECKING([how to invoke m4])
  614: if m4 -s /dev/null >/dev/null 2>&1; then
  615:  M4="m4 -s"
  616: else
  617:  M4=m4
  618: fi
  619: AC_SUBST(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: (cd / && $GFORTH -e bye >/dev/null 2>/dev/null) || GFORTH=""
  626: if test -z "$GFORTH"; then
  627:   PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
  628:   kernel_anti_dependence=''
  629: else
  630:   PREFORTH="$GFORTH -i `cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`" ;
  631:   kernel_anti_dependence='$(kernel_fi)'
  632: fi
  633: AC_SUBST(PREFORTH)
  634: AC_SUBST(kernel_anti_dependence)
  635: AC_MSG_RESULT($PREFORTH)
  636: 
  637: #echo "machine='$machine'"
  638: 
  639: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
  640: AC_CHECK_FILE($srcdir/arch/$machine/asm.fs,[asm_fs=arch/$machine/asm.fs],)
  641: AC_SUBST(asm_fs)
  642: 
  643: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
  644: AC_CHECK_FILE($srcdir/arch/$machine/disasm.fs,[disasm_fs=arch/$machine/disasm.fs],)
  645: AC_SUBST(disasm_fs)
  646: 
  647: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
  648: 
  649: case "$host_os" in
  650: 	*win32*)
  651: 		# !!!FIXME!!! problems with cygwin and ';' as path separator
  652: 		DIRSEP="\\\\"
  653: 		PATHSEP=";"
  654: 		#we want the builtins of command.com/cmd.exe and its
  655: 		# handling of .com files.
  656: 		#$COMSPEC contains the name of the Windows shell;
  657: 		# the ./ is there, because the bash does not recognize
  658: 		# absolute DOS filenames
  659: 		DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
  660: 		;;
  661: 	*darwin*)
  662: 		#Darwin uses some funny preprocessor by default; eliminate it:
  663: 		AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
  664: 		CFLAGS="$CFLAGS -no-cpp-precomp"
  665: 		DIRSEP="/"
  666: 		PATHSEP=":"
  667: 		DEFAULTSYSTEMPREFIX=""
  668:                 #the following magic value was suggested by
  669:                 #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
  670:                 AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
  671: 		;;
  672: 	*)
  673: 		DIRSEP="/"
  674: 		PATHSEP=":"
  675: 		DEFAULTSYSTEMPREFIX=""
  676: 		;;
  677: esac
  678: AC_SUBST(DIRSEP)
  679: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
  680: AC_SUBST(PATHSEP)
  681: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
  682: AC_SUBST(DEFAULTSYSTEMPREFIX)
  683: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
  684: 
  685: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
  686: #This magic incantation  seems to be completely undocumented.
  687: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
  688: 
  689: dnl Now a little support for DOS/DJGCC
  690: AC_SUBST(GFORTH_EXE)
  691: GFORTH_EXE="true"
  692: AC_SUBST(GFORTHFAST_EXE)
  693: GFORTHFAST_EXE="true"
  694: AC_SUBST(GFORTHITC_EXE)
  695: GFORTHITC_EXE="true"
  696: AC_SUBST(GFORTHDITC_EXE)
  697: GFORTHDITC_EXE="true"
  698: 
  699: AC_SUBST(FORTHSIZES)
  700: 
  701: dnl if test "$PEEPHOLE" = "yes"
  702: dnl then
  703: dnl    PEEPHOLEFLAG="true"
  704: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
  705: dnl else
  706: dnl    PEEPHOLEFLAG="false"
  707: dnl fi
  708: PEEPHOLEFLAG="true"
  709: AC_SUBST(PEEPHOLEFLAG)
  710: 
  711: dnl copy commands for systems that don't have links
  712: AC_SUBST(LINK_KERNL)
  713: LINK_KERNL=""
  714: 
  715: #if test $host_os=dos
  716: #then
  717: #  echo Configuring for DOS!!!
  718: #  MAKE_EXE="coff2exe gforth"
  719: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
  720: #fi
  721: 
  722: dnl the following macro produces a warning with autoconf-2.1
  723: AC_C_BIGENDIAN
  724: AC_SUBST(KERNEL)
  725: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
  726: if test $ac_cv_c_bigendian = yes; then
  727:   bytesex=b
  728:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
  729: else
  730:   bytesex=l
  731:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
  732: fi
  733: 
  734: #check how to do asm(".skip 16")
  735: #echo "CFLAGS=$CFLAGS"
  736: #echo "ac_link=$ac_link"
  737: AC_MSG_CHECKING([if and how we can waste code space])
  738: if test -z "$skipcode"; then
  739:     skipcode=no
  740:     CFLAGS_1="$CFLAGS"
  741:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
  742:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
  743:     do
  744: 	AC_TRY_RUN(
  745: [int foo(int,int,int);
  746: main()
  747: {
  748:   exit(foo(0,0,0)!=16);
  749: }
  750: int foo(int x, int y, int z)
  751: {
  752:   static void *labels[]={&&label1, &&label2};
  753:   if (x) {
  754:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
  755:   label1:
  756:     asm("$i"); /* or ".space 16" or somesuch */
  757:   label2: ;
  758:   }
  759:   {
  760:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
  761:   return labels[1]-labels[0];
  762:   }
  763: }]
  764: 	,skipcode=$i; break
  765: 	,,)
  766:     done
  767:     CFLAGS=$CFLAGS_1
  768: fi
  769: AC_MSG_RESULT($skipcode)
  770: if test "$skipcode" = no
  771: then 
  772:     if test -z $no_dynamic_default; then
  773: 	no_dynamic_default=1
  774: 	AC_MSG_WARN(Disabling default dynamic native code generation)
  775:     fi
  776:     AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
  777: else
  778:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
  779: fi
  780: 
  781: AC_MSG_CHECKING([if and how we can do comments in asm statements])
  782: #the point here is to get asm statements that look different to
  783: #gcc's "optimizer"
  784: if test -z "$asmcomment"; then
  785:     asmcomment=no
  786:     CFLAGS_1="$CFLAGS"
  787:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
  788:     for i in '"# "' '"! "' '"; "'; do
  789: 	AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
  790:     done
  791:     CFLAGS=$CFLAGS_1
  792: fi
  793: AC_MSG_RESULT($asmcomment)
  794: if test "$asmcomment" != no
  795: then 
  796:     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
  797: fi
  798: 
  799: test "$no_dynamic_default" || no_dynamic_default=0
  800: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
  801: 
  802: dnl Checks for programs.
  803: AC_PROG_LN_S
  804: AC_PROG_INSTALL
  805: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
  806: 
  807: dnl MacOS X has a libtool that does something else
  808: AC_CHECK_PROGS(GNU_LIBTOOL,glibtool libtool)
  809: 
  810: dnl Checks for library functions
  811: dnl This check is just for making later checks link with libm.
  812: dnl using sin here is no good idea since it is built-into gcc and typechecked
  813: AC_CHECK_LIB(m,asin)
  814: AC_CHECK_LIB(ltdl,lt_dlinit)
  815: #check for libffi 2.x
  816: AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
  817: if test -z "$FFI_H_NAME"; then
  818:   AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
  819: fi
  820: AC_SUBST(FFI_H_NAME)
  821: AC_CHECK_LIB(ffi,ffi_call)
  822: if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
  823: then
  824:   LIBFFIFLAG="true"
  825:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs"
  826: else
  827:   LIBFFIFLAG="false"
  828: fi
  829: #check for ffcall libraries
  830: #unfortunately, these four calls are separated out into a library each.
  831: AC_CHECK_LIB(avcall,__builtin_avcall)
  832: dnl AC_CHECK_LIB(callback,__vacall_r)
  833: dnl AC_CHECK_LIB(vacall,vacall)
  834: dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
  835: if test $ac_cv_lib_avcall___builtin_avcall = yes; then
  836:   FFCALLFLAG="true"
  837:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs"
  838: else
  839:   FFCALLFLAG="false"
  840: fi
  841: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then
  842:   AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries])
  843: fi
  844: AC_SUBST(LIBFFIFLAG)
  845: AC_SUBST(FFCALLFLAG)
  846: AC_SUBST(LIBCC_BUILD_SRC)
  847: if test "$host_os" != "nextstep3"
  848: then
  849: 	AC_FUNC_MEMCMP
  850: fi
  851: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
  852: AC_FUNC_FSEEKO
  853: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
  854: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
  855: AC_DECL_SYS_SIGLIST
  856: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
  857: AC_CHECK_FUNCS(expm1 log1p)
  858: AC_REPLACE_FUNCS(rint ecvt)
  859: dnl No check for select, because our replacement is no good under
  860: dnl anything but DOS
  861: AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h)
  862: AC_FUNC_FNMATCH
  863: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
  864: AC_CHECK_FUNCS(mmap sysconf getpagesize)
  865: AM_PATH_LISPDIR
  866: 
  867: kernel_fi=kernl${vwordsize}${bytesex}.fi
  868: include_fi=kernl${wordsize}${bytesex}${EC}.fi
  869: AC_SUBST(kernel_fi)
  870: AC_SUBST(include_fi)
  871: 
  872: #this breaks bindists
  873: #dnl replace srource directory by absolute value
  874: #if test $srcdir = "."; then srcdir=`pwd` 
  875: #fi
  876: 
  877: AC_SUBST(machine)
  878: AC_CONFIG_FILES([
  879: Makefile
  880: Makedist
  881: gforthmi
  882: vmgen
  883: machpc.fs
  884: envos.fs
  885: preforth
  886: engine/Makefile
  887: engine/libcc.h
  888: doc/version.texi
  889: build-ec ])
  890: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
  891: chmod +x gforthmi
  892: chmod +x vmgen
  893: chmod +x build-ec
  894: chmod +x preforth
  895: test -d kernel||mkdir kernel
  896: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
  897: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],[[PACKAGE_VERSION=$PACKAGE_VERSION]])
  898: AC_OUTPUT
  899: 

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>