File:  [gforth] / gforth / configure.in
Revision 1.292: download - view: text, annotated - select for diffs
Wed Nov 16 23:15:05 2011 UTC (8 years ago) by pazsan
Branches: MAIN
CVS tags: HEAD
Added a kforth script to do the doc generation in a cross compiling environment

    1: dnl Process this file with autoconf to produce a configure script.
    2: 
    3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009,2010 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],[0.7.9-20101227],[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="December 27, 2010"
   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 "$withval" = "yes"; then DEBUGFLAG=-g; fi)
   70: 
   71: GCC_LD="\$(GCC)"
   72: EC_MODE="false"
   73: NO_EC=""
   74: NO_CROSS=""
   75: EC=""
   76: engine2='engine2$(OPT).o'
   77: engine_fast2='engine-fast2$(OPT).o'
   78: no_dynamic=""
   79: image_i=""
   80: signals_o="io.o signals.o"
   81: 
   82: AC_CANONICAL_HOST
   83: AC_ARG_WITH(ec,
   84: 	AC_HELP_STRING([--with-ec=<arch>],
   85: 			[  Build gforth for systems without OS.]),
   86: [if test "$withval" = "no"; then
   87:   echo "defining hosted system"
   88: else
   89:   echo "defining standalone system (${withval})"
   90:   AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS])
   91:   EC_MODE="true"
   92:   EC="-ec"
   93:   NO_EC="#"
   94:   NO_CROSS="#"
   95:   engine2=""
   96:   engine_fast2=""
   97:   no_dynamic="-DNO_DYNAMIC"
   98:   image_i="image.i"
   99:   if test "$withval" != "yes"; then
  100:     signals_o="io-${withval}.o"
  101:   else
  102:     signals_o="io.o"
  103:   fi
  104:   if test -f "arch/$host_cpu/${withval}/config.sh"; then
  105:     source "arch/$host_cpu/${withval}/config.sh"
  106:   fi
  107:   GCC_PATH=$(which $CC)
  108:   LIB_PATH=${GCC_PATH%/*/*}
  109:   GCC_LD="\$(LD)"
  110:   platform=${withval}
  111: fi])
  112: 
  113: AC_ARG_WITH(cross,
  114: 	AC_HELP_STRING([--with-cross=<arch>],
  115: 			[  Build gforth using a cross compiler.]),
  116: [if test "$withval" = "no"; then
  117:   echo "defining hosted system"
  118: else
  119:   echo "defining cross compiled system (${withval})"
  120:   if test -f "arch/$host_cpu/${withval}/config.sh"; then
  121:     source "arch/$host_cpu/${withval}/config.sh"
  122:   fi
  123:   GCC_PATH=$(which $CC)
  124:   LIB_PATH=${GCC_PATH%/*/*}
  125:   platform=${withval}
  126:   NO_EC=""
  127:   NO_CROSS="#"
  128: fi])
  129: 
  130: #variables mentioned in INSTALL
  131: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
  132: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
  133: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
  134: AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).])
  135: 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)])
  136: AC_ARG_VAR(LIBCC_BUILD_SRC, [(Additional) libcc interface source files that should be processed on building and installation (default none)])
  137: 
  138: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
  139: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
  140: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
  141: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
  142: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
  143: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
  144: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
  145: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
  146: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
  147: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
  148: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
  149: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
  150: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
  151: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
  152: AC_ARG_VAR(asmcomment, [assembler comment start string])
  153: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
  154: AC_ARG_VAR(LTDL_LIBRARY_PATH, [additional directories for libltdl (for some 64-bit platforms)])
  155: 
  156: #set up feature test macros, so the tests get them right:
  157: # turn on all POSIX, SUSv3, and GNU features if available
  158: AC_GNU_SOURCE
  159: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
  160: 
  161: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
  162: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
  163: dnl but not for _XOPEN_SOURCE)
  164: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
  165: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
  166: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
  167: # turn on large file support with 64-bit off_t where available
  168: AC_SYS_LARGEFILE
  169: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
  170: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
  171: 
  172: #currently we force direct threading this way.  Eventually we should
  173: #setup in the arch and engine files right
  174: 
  175: AC_PROG_CC
  176: 
  177: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
  178: 
  179: AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
  180: test x$condbranch_opt = x && 
  181: if ($CC -v 2>&1 |grep 'gcc version 3' >/dev/null); then
  182:    condbranch_opt=0
  183: else
  184:    condbranch_opt=1
  185: fi
  186: AC_MSG_RESULT($condbranch_opt)
  187: AC_SUBST(condbranch_opt)
  188: 
  189: AC_SUBST(CC)
  190: AC_SUBST(GCC_LD)
  191: AC_SUBST(DEBUGFLAG)
  192: AC_SUBST(EC)
  193: AC_SUBST(NO_EC)
  194: AC_SUBST(NO_CROSS)
  195: AC_SUBST(EC_MODE)
  196: AC_SUBST(engine2)
  197: AC_SUBST(engine_fast2)
  198: AC_SUBST(no_dynamic)
  199: AC_SUBST(image_i)
  200: AC_SUBST(signals_o)
  201: 
  202: #this is used to disable some (not generally essential) part of the
  203: #Makefile that some makes don't grok.  It would be better to test for
  204: #this specific Makefile feature than the make version.
  205: AC_MSG_CHECKING(make type)
  206: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
  207: GNUMAKE='#'
  208: test "$make_type" = "GNU Make" && GNUMAKE=''
  209: AC_MSG_RESULT($make_type)
  210: AC_SUBST(GNUMAKE)
  211: 
  212: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
  213: OLDLDFLAGS=$LDFLAGS
  214: LDFLAGS="$LDFLAGS -export-dynamic"
  215: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
  216: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
  217: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
  218: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
  219: AC_MSG_RESULT($ac_export_dynamic)
  220: 
  221: #terminology is a bit unusual here: The host is the system on which
  222: #gforth will run; the system on which configure will run is the `build'
  223: case "$host_cpu" in
  224: 	arm*)
  225: 		machine=arm
  226: 		CFLAGS="$CFLAGS -fomit-frame-pointer"
  227: 		if test x$platform = xnxt; then
  228: 		   CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
  229: 		fi
  230: 		if test -z $arm_cacheflush; then
  231: 		   case "$host_os" in
  232: 		     *linux*)
  233: 			AC_LIBOBJ(../arch/arm/cacheflush-linux) 
  234: 			;;
  235: 		     *)   
  236: 			no_dynamic_default=1
  237: 			AC_LIBOBJ(../arch/arm/cacheflush0)
  238: 			AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
  239: 			;;
  240:                    esac
  241:                 else
  242:                    AC_LIBOBJ(../$arm_cacheflush)
  243:                    test $srcdir = . || AC_MSG_WARN([setting arm_cacheflush requires building in the source directory])
  244: 		fi
  245:                 #longer skipcodes lead to problems on ARM, and it uses
  246:                 #only 4-byte alignment anyway
  247: 		test "$skipcode" || skipcode="nop"
  248: 		;;
  249: 	hppa*)
  250: 		machine=hppa
  251: 		AC_LIBOBJ(../arch/hppa/cache)
  252: 		#-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
  253: 		LDFLAGS="$LDFLAGS -Xlinker -N"
  254: 		LIBS="$LIBS -L/lib/pa1.1/"
  255: 		;;
  256: 	sparc*)
  257: 		machine=sparc
  258: 		;;
  259: 	i386)
  260: 		machine=386
  261: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  262: 		;;
  263: 	i486)
  264: 		machine=386
  265: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  266: 		CFLAGS_1="$CFLAGS"
  267: 		CFLAGS="$CFLAGS -march=i486"
  268: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
  269: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
  270: 		;;
  271: 	i*86)
  272: 		machine=386
  273: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  274: 		CFLAGS_1="$CFLAGS"
  275: 		CFLAGS="$CFLAGS -march=pentium -mtune=generic"
  276: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -march=pentium")
  277: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
  278: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
  279: 		;;
  280: 	x86_64)
  281: 		case $CC
  282: 		in
  283: 		    *-m32*)
  284: 		    	machine=386
  285: 			CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  286: 			CFLAGS_1="$CFLAGS"
  287: 			CFLAGS="$CFLAGS -march=athlon64"
  288: 			;;
  289: 		    *)
  290: 		    	machine=amd64
  291: 			;;
  292: 		esac
  293: 		;;
  294: 	ia64*)
  295: 		machine=ia64
  296: 		AC_LIBOBJ(../arch/ia64/flush_icache_block)
  297: 		test "$skipcode" || skipcode="nop.i 0"
  298: 		#".skip 16" passes the test below,
  299: 		# but gives an assembler error in engine
  300: 		;;
  301:         m68k)
  302: 		machine=m68k
  303: 		CFLAGS="$CFLAGS -fomit-frame-pointer"
  304: 		if test "$host_os" = "nextstep3"
  305: 		then
  306: 			AC_LIBOBJ(termios)
  307: 		fi
  308: 		;;
  309: 	mips*)
  310: 		machine=mips
  311: 		AC_LIBOBJ(../arch/mips/check_prim) 
  312: 		#dynamic native code has the following problems on MIPS:
  313: 		#
  314: 		#1) J/JAL seems relocatable, but is are only
  315: 		#relocatable within a 256MB-segment.  While we try to
  316: 		#get the linker to arrange this, there is no guarantee
  317: 		#that this will succeed (and if the user uses a lot of
  318: 		#memory, it is likely to fail).
  319: 		#
  320: 		#2) The way we generate dynamic native code may
  321: 		#violate MIPS architectural restrictions (in
  322: 		#particular, the delay slots of LW, MFLO, etc.)
  323: 		#
  324: 		#Therefore we disable dynamic native code by default:
  325: 		if test -z "$no_dynamic_default"; then
  326: 		    no_dynamic_default=1
  327: 		    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
  328: 		fi
  329: 		;;
  330: 	alpha*)
  331: 		machine=alpha
  332: 		#full IEEE FP support for more uniformity across platforms:
  333: 		CFLAGS="$CFLAGS -mieee"
  334: 		;;
  335: 	power*|rs6000)
  336: 		machine=power
  337: 		AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
  338: 		#long long is broken on (at least) gcc-2.95.* for PPC
  339: 		test x$ac_cv_sizeof_long_long = x && 
  340: 		($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) &&
  341:                      ac_cv_sizeof_long_long=0
  342:                 #The only architecture with enough callee-saved registers
  343:                 test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
  344:                 #or use 2, hardly slower at run-time and starts up faster
  345: 
  346:                 #the skipcode that is normally selected below does not
  347:                 #work with gcc-3.[34]
  348: 		test "$skipcode" || skipcode="nop\nnop\nnop\nnop"
  349: 		;;
  350: 	*)
  351: 		AC_MSG_WARN([Using a generic machine description])
  352: 		AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
  353: 		AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
  354: 		machine=generic
  355: 		#I-cache flushing would be needed for dynamic code generation
  356: 		if test -z $no_dynamic_default; then
  357: 		    no_dynamic_default=1
  358: 		    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
  359: 		fi
  360: esac
  361: AC_SUBST(host)
  362: 
  363: MAKEINC=""
  364: GFORTH_EXE="true"
  365: 
  366: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
  367: if test x$EC_MODE = xtrue
  368: then
  369: 	echo "Check for arch/$machine/$platform/gforth.ld"
  370: 	if test -f arch/$machine/$platform/gforth.ld
  371: 	then
  372: 		LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
  373: 		if test x$platform = xnxt; then
  374: 			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 $LIBS"
  375: 		fi
  376: 	fi
  377: 	if test -f arch/$machine/$platform/make.inc
  378: 	then
  379: 		MAKEINC="include ../arch/$machine/$platform/make.inc"
  380: 		GFORTH_EXE="\$(MAKE) -f arch/$machine/$platform/make.inc \$@.exe"
  381: 	fi
  382: fi
  383: AC_SUBST(MAKEINC)
  384: 
  385: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
  386: 
  387: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
  388: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
  389: 		   [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
  390: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
  391: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
  392: 		   [number of registers in the default stack cache state for gforth-fast and gforth-native])
  393: 
  394: test x$GCC_PR15242_WORKAROUND = x ||
  395: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
  396:                    [force (1) or forbid (0) use of a workaround for a gcc performance bug])
  397: 
  398: dnl the following macro produces a warning with autoconf-2.1
  399: AC_CHECK_SIZEOF(char *)
  400: case "$ac_cv_sizeof_char_p" in
  401:   2)
  402:     wordsize=16
  403:     ;;
  404:   4)
  405:     wordsize=32
  406:     ;;
  407:   8)
  408:     wordsize=64
  409:     ;;
  410: esac
  411: 
  412: AC_CHECK_SIZEOF(void *)
  413: case "$ac_cv_sizeof_void_p" in
  414:   2)
  415:     vwordsize=16
  416:     ;;
  417:   4)
  418:     vwordsize=32
  419:     ;;
  420:   8)
  421:     vwordsize=64
  422:     ;;
  423: esac
  424: 
  425: AC_CHECK_SIZEOF(char)
  426: AC_CHECK_SIZEOF(short)
  427: AC_CHECK_SIZEOF(int)
  428: AC_CHECK_SIZEOF(long)
  429: AC_CHECK_SIZEOF(long long)
  430: AC_CHECK_SIZEOF(intptr_t)
  431: AC_CHECK_SIZEOF(int128_t)
  432: AC_CHECK_SIZEOF(uint128_t)
  433: 
  434: AC_MSG_CHECKING([for a C type for cells])
  435: ac_cv_int_type_cell=none
  436: case "$ac_cv_sizeof_char_p" in
  437:   $ac_cv_sizeof_int)
  438:     ac_cv_int_type_cell=int
  439:     ;;
  440:   $ac_cv_sizeof_short)
  441:     ac_cv_int_type_cell=short
  442:     ;;
  443:   $ac_cv_sizeof_char)
  444:     ac_cv_int_type_cell=char
  445:     ;;
  446:   $ac_cv_sizeof_long)
  447:     ac_cv_int_type_cell=long
  448:     ;;
  449:   $ac_cv_sizeof_long_long)
  450:     ac_cv_int_type_cell="long long"
  451:     ;;
  452:   $ac_cv_sizeof_intptr_t)
  453:     ac_cv_int_type_cell="intptr_t"
  454:     ;;
  455: esac
  456: AC_MSG_RESULT($ac_cv_int_type_cell)
  457: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
  458: 
  459: AC_MSG_CHECKING([for a C type for wydes])
  460: ac_cv_wyde_type_cell=none
  461: case 2 in
  462:   $ac_cv_sizeof_int)
  463:     ac_cv_wyde_type_cell=int
  464:     ;;
  465:   $ac_cv_sizeof_short)
  466:     ac_cv_wyde_type_cell=short
  467:     ;;
  468:   $ac_cv_sizeof_char)
  469:     ac_cv_wyde_type_cell=char
  470:     ;;
  471:   $ac_cv_sizeof_long)
  472:     ac_cv_wyde_type_cell=long
  473:     ;;
  474:   $ac_cv_sizeof_long_long)
  475:     ac_cv_wyde_type_cell="long long"
  476:     ;;
  477:   $ac_cv_sizeof_intptr_t)
  478:     ac_cv_wyde_type_cell="intptr_t"
  479:     ;;
  480: esac
  481: AC_MSG_RESULT($ac_cv_wyde_type_cell)
  482: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
  483: 
  484: AC_MSG_CHECKING([for a C type for tetrabytes])
  485: ac_cv_tetrabyte_type_cell=none
  486: case 4 in
  487:   $ac_cv_sizeof_int)
  488:     ac_cv_tetrabyte_type_cell=int
  489:     ;;
  490:   $ac_cv_sizeof_short)
  491:     ac_cv_tetrabyte_type_cell=short
  492:     ;;
  493:   $ac_cv_sizeof_char)
  494:     ac_cv_tetrabyte_type_cell=char
  495:     ;;
  496:   $ac_cv_sizeof_long)
  497:     ac_cv_tetrabyte_type_cell=long
  498:     ;;
  499:   $ac_cv_sizeof_long_long)
  500:     ac_cv_tetrabyte_type_cell="long long"
  501:     ;;
  502:   $ac_cv_sizeof_intptr_t)
  503:     ac_cv_tetrabyte_type_cell="intptr_t"
  504:     ;;
  505: esac
  506: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
  507: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
  508: 
  509: AC_MSG_CHECKING([for a C type for octabytes])
  510: ac_cv_octabyte_type_cell=none
  511: case 8 in
  512:   $ac_cv_sizeof_int)
  513:     ac_cv_octabyte_type_cell=int
  514:     ;;
  515:   $ac_cv_sizeof_short)
  516:     ac_cv_octabyte_type_cell=short
  517:     ;;
  518:   $ac_cv_sizeof_char)
  519:     ac_cv_octabyte_type_cell=char
  520:     ;;
  521:   $ac_cv_sizeof_long)
  522:     ac_cv_octabyte_type_cell=long
  523:     ;;
  524:   $ac_cv_sizeof_long_long)
  525:     ac_cv_octabyte_type_cell="long long"
  526:     ;;
  527:   $ac_cv_sizeof_intptr_t)
  528:     ac_cv_octabyte_type_cell="intptr_t"
  529:     ;;
  530: esac
  531: AC_MSG_RESULT($ac_cv_octabyte_type_cell)
  532: AC_DEFINE_UNQUOTED(OCTABYTE_TYPE,$ac_cv_octabyte_type_cell,[an integer type that is 8 bytes long])
  533: 
  534: AC_MSG_CHECKING([for a C type for double-cells])
  535: ac_cv_int_type_double_cell=none
  536: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
  537:   $ac_cv_sizeof_short)
  538:     ac_cv_int_type_double_cell=short
  539:     ;;
  540:   $ac_cv_sizeof_int)
  541:     ac_cv_int_type_double_cell=int
  542:     ;;
  543:   $ac_cv_sizeof_long)
  544:     ac_cv_int_type_double_cell=long
  545:     ;;
  546:   $ac_cv_sizeof_long_long)
  547:     ac_cv_int_type_double_cell="long long"
  548:     ;;
  549:   $ac_cv_sizeof_intptr_t)
  550:     ac_cv_int_type_double_cell="intptr_t"
  551:     ;;
  552:   $ac_cv_sizeof_int128_t)
  553:     ac_cv_int_type_double_cell="int128_t"
  554:     ;;
  555: esac
  556: AC_MSG_RESULT($ac_cv_int_type_double_cell)
  557: 
  558: AC_MSG_CHECKING([for a C type for unsigned double-cells])
  559: ac_cv_int_type_double_ucell=none
  560: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
  561:   $ac_cv_sizeof_short)
  562:     ac_cv_int_type_double_ucell="unsigned short"
  563:     ;;
  564:   $ac_cv_sizeof_int)
  565:     ac_cv_int_type_double_ucell="unsigned int"
  566:     ;;
  567:   $ac_cv_sizeof_long)
  568:     ac_cv_int_type_double_ucell="unsigned long"
  569:     ;;
  570:   $ac_cv_sizeof_long_long)
  571:     ac_cv_int_type_double_ucell="unsigned long long"
  572:     ;;
  573:   $ac_cv_sizeof_intptr_t)
  574:     ac_cv_int_type_double_ucell="unsigned intptr_t"
  575:     ;;
  576:   $ac_cv_sizeof_uint128_t)
  577:     ac_cv_int_type_double_ucell="uint128_t"
  578:     ;;
  579: esac
  580: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
  581: 
  582: if test "$ac_cv_int_type_double_cell" != none && \
  583:    test "$ac_cv_int_type_double_ucell" != none
  584: then
  585: 	AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
  586: 	AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
  587:         OPTS=-ll
  588: else
  589:         if test "$ac_cv_sizeof_char_p" = 8; then
  590:            OPTS="-ll -noll"
  591:         else
  592:            OPTS=-noll
  593:         fi
  594: fi
  595: 
  596: if grep FORCE_REG $srcdir/arch/$machine/machine.h >/dev/null; then
  597:    OPTS2=''
  598:    for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done
  599:    OPTS="$OPTS2 $OPTS"
  600: else
  601:   AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG])
  602: fi
  603: AC_SUBST(OPTS)
  604: 
  605: AC_TYPE_OFF_T
  606: AC_CHECK_SIZEOF(off_t)
  607: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
  608: ac_small_off_t=$?
  609: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
  610: 
  611: ENGINE_FLAGS=
  612: AC_SUBST(ENGINE_FLAGS)
  613: 
  614: # Try if GCC understands -fno-gcse
  615: 
  616: AC_MSG_CHECKING([if $CC understands -fno-gcse])
  617: CFLAGS_1="$CFLAGS"
  618: CFLAGS="$CFLAGS -fno-gcse"
  619: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
  620: CFLAGS="$CFLAGS_1"
  621: AC_MSG_RESULT($ac_nogcse)
  622: 
  623: # Try if GCC understands -fno-strict-aliasing
  624: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
  625: CFLAGS_1="$CFLAGS"
  626: CFLAGS="$CFLAGS -fno-strict-aliasing"
  627: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
  628: CFLAGS="$CFLAGS_1"
  629: AC_MSG_RESULT($ac_nostrictaliasing)
  630: 
  631: # Try if GCC understands -fno-crossjumping
  632: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
  633: CFLAGS_1="$CFLAGS"
  634: CFLAGS="$CFLAGS -fno-crossjumping"
  635: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
  636: CFLAGS="$CFLAGS_1"
  637: AC_MSG_RESULT($ac_nocrossjumping)
  638: 
  639: # Try if GCC understands -fno-reorder-blocks
  640: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
  641: CFLAGS_1="$CFLAGS"
  642: CFLAGS="$CFLAGS -fno-reorder-blocks"
  643: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
  644: CFLAGS="$CFLAGS_1"
  645: AC_MSG_RESULT($ac_noreorder_blocks)
  646: 
  647: # Try if GCC understands -falign-labels=1
  648: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
  649: CFLAGS_1="$CFLAGS"
  650: CFLAGS="$CFLAGS -falign-labels=1"
  651: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
  652: CFLAGS="$CFLAGS_1"
  653: AC_MSG_RESULT($ac_align_labels)
  654: 
  655: # Try if GCC understands -falign-loops=1
  656: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
  657: CFLAGS_1="$CFLAGS"
  658: CFLAGS="$CFLAGS -falign-loops=1"
  659: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
  660: CFLAGS="$CFLAGS_1"
  661: AC_MSG_RESULT($ac_align_loops)
  662: 
  663: # Try if GCC understands -falign-jumps=1
  664: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
  665: CFLAGS_1="$CFLAGS"
  666: CFLAGS="$CFLAGS -falign-jumps=1"
  667: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
  668: CFLAGS="$CFLAGS_1"
  669: AC_MSG_RESULT($ac_align_jumps)
  670: 
  671: if test -z "$LIBTOOL_CC"
  672: then
  673:   LIBTOOL_CC="$CC"
  674:   # Try if GCC understands -Wimplicit-function-declaration
  675:   AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration])
  676:   CFLAGS_1="$CFLAGS"
  677:   CFLAGS="$CFLAGS -Wimplicit-function-declaration"
  678:   AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",)
  679:   CFLAGS="$CFLAGS_1"
  680:   AC_MSG_RESULT($ac_align_jumps)
  681: fi
  682: AC_SUBST(LIBTOOL_CC)
  683: 
  684: 
  685: 
  686: # Try if GCC understands __attribute__((unused))
  687: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
  688: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
  689: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
  690: AC_MSG_RESULT($MAYBE_UNUSED)
  691: 
  692: # Try if GCC understands __thread
  693: AC_MSG_CHECKING([whether gcc understands '__thread'])
  694: AC_TRY_COMPILE(,[extern __thread int foo;],PER_THREAD='__thread',)
  695: AC_DEFINE_UNQUOTED(PER_THREAD,$PER_THREAD,[storage class for thread-local variables])
  696: AC_MSG_RESULT($PER_THREAD)
  697: 
  698: #try if m4 understands -s
  699: AC_MSG_CHECKING([how to invoke m4])
  700: if m4 -s /dev/null >/dev/null 2>&1; then
  701:  M4="m4 -s"
  702: else
  703:  M4=m4
  704: fi
  705: AC_SUBST(M4)
  706: AC_MSG_RESULT($M4)
  707: 
  708: #echo "machine='$machine'"
  709: 
  710: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
  711: if test x$EC_MODE = xfalse
  712: then
  713:   AS_IF([test -f $srcdir/arch/$machine/asm.fs],
  714:         [asm_fs=arch/$machine/asm.fs])
  715: fi
  716: AC_SUBST(asm_fs)
  717: 
  718: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
  719: if test x$EC_MODE = xfalse
  720: then
  721:   AS_IF([test -f $srcdir/arch/$machine/disasm.fs],
  722:    	[disasm_fs=arch/$machine/disasm.fs])
  723: fi
  724: AC_SUBST(disasm_fs)
  725: 
  726: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
  727: 
  728: case "$host_os" in
  729: 	*win32*)
  730: 		# !!!FIXME!!! problems with cygwin and ';' as path separator
  731: 		DIRSEP="\\\\"
  732: 		PATHSEP=";"
  733: 		#we want the builtins of command.com/cmd.exe and its
  734: 		# handling of .com files.
  735: 		#$COMSPEC contains the name of the Windows shell;
  736: 		# the ./ is there, because the bash does not recognize
  737: 		# absolute DOS filenames
  738: 		DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
  739: 		;;
  740: 	*darwin*)
  741: 		#Darwin uses some funny preprocessor by default; eliminate it:
  742: 		AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
  743: 		CFLAGS="$CFLAGS -no-cpp-precomp"
  744: 		DIRSEP="/"
  745: 		PATHSEP=":"
  746: 		DEFAULTSYSTEMPREFIX=""
  747:                 #the following magic value was suggested by
  748:                 #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
  749:                 AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
  750: 		;;
  751: 	*linux*)
  752: 		DIRSEP="/"
  753: 		PATHSEP=":"
  754: 		DEFAULTSYSTEMPREFIX=""
  755: 		if test -z "$LTDL_LIBRARY_PATH" -a "$wordsize" = 64; then
  756: 		   LTDL_LIBRARY_PATH=`/sbin/ldconfig -p |tail -n +2 |sed 's/^.* => //'|sed 's|/[[^/]]*$||'| grep 64 | sort -u | tr '\n' : | sed -e 's/:$//'`
  757: 		fi
  758: 		;;
  759: 	*)
  760: 		DIRSEP="/"
  761: 		PATHSEP=":"
  762: 		DEFAULTSYSTEMPREFIX=""
  763: 		;;
  764: esac
  765: AC_SUBST(DIRSEP)
  766: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
  767: AC_SUBST(PATHSEP)
  768: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
  769: AC_SUBST(DEFAULTSYSTEMPREFIX)
  770: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
  771: if test -n "$LTDL_LIBRARY_PATH"; then
  772:    AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux])
  773: fi                                                                
  774: 
  775: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
  776: #This magic incantation  seems to be completely undocumented.
  777: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
  778: 
  779: dnl Now a little support for DOS/DJGCC
  780: GFORTHFAST_EXE="$GFORTH_EXE"
  781: GFORTHITC_EXE="$GFORTH_EXE"
  782: GFORTHDITC_EXE="$GFORTH_EXE"
  783: AC_SUBST(GFORTH_EXE)
  784: AC_SUBST(GFORTHFAST_EXE)
  785: AC_SUBST(GFORTHITC_EXE)
  786: AC_SUBST(GFORTHDITC_EXE)
  787: 
  788: AC_SUBST(FORTHSIZES)
  789: 
  790: dnl if test "$PEEPHOLE" = "yes"
  791: dnl then
  792: dnl    PEEPHOLEFLAG="true"
  793: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
  794: dnl else
  795: dnl    PEEPHOLEFLAG="false"
  796: dnl fi
  797: PEEPHOLEFLAG="true"
  798: AC_SUBST(PEEPHOLEFLAG)
  799: 
  800: dnl copy commands for systems that don't have links
  801: AC_SUBST(LINK_KERNL)
  802: LINK_KERNL=""
  803: 
  804: #if test $host_os=dos
  805: #then
  806: #  echo Configuring for DOS!!!
  807: #  MAKE_EXE="coff2exe gforth"
  808: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
  809: #fi
  810: 
  811: dnl the following macro produces a warning with autoconf-2.1
  812: AC_C_BIGENDIAN
  813: AC_SUBST(KERNEL)
  814: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
  815: if test $ac_cv_c_bigendian != no; then
  816:   bytesex=b
  817:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
  818: else
  819:   bytesex=l
  820:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
  821: fi
  822: 
  823: #check how to do asm(".skip 16")
  824: #echo "CFLAGS=$CFLAGS"
  825: #echo "ac_link=$ac_link"
  826: AC_MSG_CHECKING([if and how we can waste code space])
  827: if test -z "$skipcode" && test x$cross_compiling = xyes; then
  828:    # we cannot perform the AC_TRY_RUN check when cross-compiling.  
  829:    skipcode=no
  830:    AC_MSG_RESULT([$skipcode, can't run checks since cross-compiling])
  831: elif test -z "$skipcode"; then
  832:     skipcode=no
  833:     CFLAGS_1="$CFLAGS"
  834:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
  835:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
  836:     do
  837: 	AC_TRY_RUN(
  838: [int foo(int,int,int);
  839: main()
  840: {
  841:   exit(foo(0,0,0)!=16);
  842: }
  843: int foo(int x, int y, int z)
  844: {
  845:   static void *labels[]={&&label1, &&label2};
  846:   if (x) {
  847:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
  848:   label1:
  849:     asm("$i"); /* or ".space 16" or somesuch */
  850:   label2: ;
  851:   }
  852:   {
  853:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
  854:   return labels[1]-labels[0];
  855:   }
  856: }]
  857: 	,skipcode=$i; break
  858: 	,,)
  859:     done
  860:     CFLAGS=$CFLAGS_1
  861: fi
  862: AC_MSG_RESULT($skipcode)
  863: if test "$skipcode" = no
  864: then 
  865:     if test -z $no_dynamic_default; then
  866: 	no_dynamic_default=1
  867: 	AC_MSG_WARN(Disabling default dynamic native code generation)
  868:     fi
  869:     AC_DEFINE_UNQUOTED(SKIP16,asm(""),statement for skipping 16 bytes)
  870: else
  871:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
  872: fi
  873: 
  874: AC_MSG_CHECKING([if and how we can do comments in asm statements])
  875: #the point here is to get asm statements that look different to
  876: #gcc's "optimizer"
  877: if test -z "$asmcomment"; then
  878:     asmcomment=no
  879:     CFLAGS_1="$CFLAGS"
  880:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
  881:     for i in '"# "' '"! "' '"; "'; do
  882: 	AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
  883:     done
  884:     CFLAGS=$CFLAGS_1
  885: fi
  886: AC_MSG_RESULT($asmcomment)
  887: if test "$asmcomment" != no
  888: then 
  889:     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
  890: fi
  891: 
  892: test "$no_dynamic_default" || no_dynamic_default=0
  893: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
  894: 
  895: dnl Checks for programs.
  896: AC_PROG_LN_S
  897: AC_PROG_INSTALL
  898: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
  899: 
  900: dnl check for the presence of Emacs
  901: AC_CHECK_PROGS(EMACS,emacs xemacs)
  902: test -n "$EMACS" && gforth_elc=gforth.elc
  903: AC_SUBST(gforth_elc)
  904: 
  905: dnl MacOS X has a libtool that does something else
  906: AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
  907: 
  908: dnl Checks for library functions
  909: dnl This check is just for making later checks link with libm.
  910: dnl using sin here is no good idea since it is built-into gcc and typechecked
  911: AC_CHECK_LIB(m,asin)
  912: AC_CHECK_LIB(ltdl,lt_dlinit)
  913: 
  914: if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
  915:   build_libcc_named=build-libcc-named
  916: else
  917:   build_libcc_named=""
  918:   AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries])
  919: fi
  920: AC_SUBST(build_libcc_named)
  921: 
  922: 
  923: if test -z "$GNU_LIBTOOL"; then
  924:   AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.])
  925:   AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.])
  926:   GNU_LIBTOOL=libtool
  927: fi
  928: 
  929: #check for libffi 2.x
  930: AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
  931: if test -z "$FFI_H_NAME"; then
  932:   AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
  933: fi
  934: AC_SUBST(FFI_H_NAME)
  935: AC_CHECK_LIB(ffi,ffi_call,LIBS="$LIBS")
  936: if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
  937: then
  938:   LIBFFIFLAG="true"
  939:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs"
  940: else
  941:   LIBFFIFLAG="false"
  942: fi
  943: #check for ffcall libraries
  944: #unfortunately, these four calls are separated out into a library each.
  945: AC_CHECK_LIB(avcall,__builtin_avcall,LIBS="$LIBS")
  946: dnl AC_CHECK_LIB(callback,__vacall_r)
  947: dnl AC_CHECK_LIB(vacall,vacall)
  948: dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
  949: if test $ac_cv_lib_avcall___builtin_avcall = yes; then
  950:   FFCALLFLAG="true"
  951:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs"
  952: else
  953:   FFCALLFLAG="false"
  954: fi
  955: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then
  956:   AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries])
  957: fi
  958: AC_SUBST(LIBFFIFLAG)
  959: AC_SUBST(FFCALLFLAG)
  960: AC_SUBST(LIBCC_BUILD_SRC)
  961: if test "$host_os" != "nextstep3"
  962: then
  963: 	AC_FUNC_MEMCMP
  964: fi
  965: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
  966: AC_FUNC_FSEEKO
  967: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep)
  968: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
  969: AC_DECL_SYS_SIGLIST
  970: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
  971: AC_CHECK_FUNCS(expm1 log1p)
  972: AC_REPLACE_FUNCS(rint ecvt)
  973: dnl No check for select, because our replacement is no good under
  974: dnl anything but DOS
  975: AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h endian.h)
  976: AC_FUNC_FNMATCH
  977: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
  978: AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth)
  979: AM_PATH_LISPDIR
  980: 
  981: kernel_fi=kernl${vwordsize}${bytesex}.fi
  982: include_fi=kernl${wordsize}${bytesex}${EC}.fi
  983: AC_SUBST(kernel_fi)
  984: AC_SUBST(include_fi)
  985: 
  986: # Find installed Gforth
  987: AC_MSG_CHECKING([for gforth])
  988: GFORTH="`cd / && which gforth 2>/dev/null`"
  989: #the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
  990: (cd / && $GFORTH -e bye >/dev/null 2>/dev/null  && test "$srcdir" = ".") || GFORTH=""
  991: if test -z "$GFORTH"; then
  992:   PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
  993:   KFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
  994:   kernel_anti_dependence=''
  995: else
  996:   GFORTH_FI=`cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`
  997:   PREFORTH="$GFORTH -i $GFORTH_FI" ;
  998:   KERNLX_FI=`echo $GFORTH_FI | sed -e s/lib/share/g -e s/gforth.fi/kernl*.fi/g`
  999:   KFORTH="$GFORTH -i `echo $KERNLX_FI`" ;
 1000:   kernel_anti_dependence='$(kernel_fi)'
 1001: fi
 1002: AC_SUBST(PREFORTH)
 1003: AC_SUBST(KFORTH)
 1004: AC_SUBST(kernel_anti_dependence)
 1005: AC_MSG_RESULT($PREFORTH)
 1006: 
 1007: #this breaks bindists
 1008: #dnl replace srource directory by absolute value
 1009: #if test $srcdir = "."; then srcdir=`pwd` 
 1010: #fi
 1011: 
 1012: AC_SUBST(machine)
 1013: AC_CONFIG_FILES([
 1014: Makefile
 1015: Makedist
 1016: gforthmi
 1017: vmgen
 1018: machpc.fs
 1019: envos.fs
 1020: preforth
 1021: kforth
 1022: engine/Makefile
 1023: engine/libcc.h
 1024: doc/version.texi
 1025: build-ec ])
 1026: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
 1027: chmod +x gforthmi
 1028: chmod +x vmgen
 1029: chmod +x build-ec
 1030: chmod +x preforth
 1031: chmod +x kforth
 1032: test -d kernel||mkdir kernel
 1033: if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi
 1034: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
 1035: $srcdir/mkinstalldirs arch/$machine
 1036: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],
 1037: [PACKAGE_VERSION=$PACKAGE_VERSION
 1038:  machine=$machine])
 1039: AC_OUTPUT

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