File:  [gforth] / gforth / configure.in
Revision 1.303: download - view: text, annotated - select for diffs
Thu Mar 22 01:45:42 2012 UTC (7 years, 7 months ago) by pazsan
Branches: MAIN
CVS tags: HEAD
Getting closer to Android libcc.fs support

    1: dnl Process this file with autoconf to produce a configure script.
    2: 
    3: #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009,2010,2011 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],[0.7.9-20120317],[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="March 17, 2012"
   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(SH, [The shell])
  132: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
  133: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
  134: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
  135: AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).])
  136: 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)])
  137: AC_ARG_VAR(LIBCC_BUILD_SRC, [(Additional) libcc interface source files that should be processed on building and installation (default none)])
  138: 
  139: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
  140: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
  141: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
  142: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
  143: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
  144: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
  145: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
  146: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
  147: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
  148: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
  149: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
  150: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
  151: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
  152: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
  153: AC_ARG_VAR(asmcomment, [assembler comment start string])
  154: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
  155: AC_ARG_VAR(LTDL_LIBRARY_PATH, [additional directories for libltdl (for some 64-bit platforms)])
  156: 
  157: #set up feature test macros, so the tests get them right:
  158: # turn on all POSIX, SUSv3, and GNU features if available
  159: AC_GNU_SOURCE
  160: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
  161: 
  162: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
  163: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
  164: dnl but not for _XOPEN_SOURCE)
  165: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
  166: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
  167: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
  168: # turn on large file support with 64-bit off_t where available
  169: AC_SYS_LARGEFILE
  170: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
  171: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
  172: 
  173: #currently we force direct threading this way.  Eventually we should
  174: #setup in the arch and engine files right
  175: 
  176: AC_PROG_CC
  177: 
  178: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
  179: 
  180: test "x$SH" = "x" && SH="/bin/sh"
  181: 
  182: AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
  183: test x$condbranch_opt = x && 
  184: if ($CC -v 2>&1 |grep 'gcc version 3' >/dev/null); then
  185:    condbranch_opt=0
  186: else
  187:    condbranch_opt=1
  188: fi
  189: AC_MSG_RESULT($condbranch_opt)
  190: AC_SUBST(condbranch_opt)
  191: AC_SUBST(host_cpu)
  192: 
  193: AC_SUBST(SH)
  194: AC_SUBST(CC)
  195: AC_SUBST(GCC_LD)
  196: AC_SUBST(DEBUGFLAG)
  197: AC_SUBST(EC)
  198: AC_SUBST(NO_EC)
  199: AC_SUBST(NO_CROSS)
  200: AC_SUBST(EC_MODE)
  201: AC_SUBST(engine2)
  202: AC_SUBST(engine_fast2)
  203: AC_SUBST(no_dynamic)
  204: AC_SUBST(image_i)
  205: AC_SUBST(signals_o)
  206: 
  207: #this is used to disable some (not generally essential) part of the
  208: #Makefile that some makes don't grok.  It would be better to test for
  209: #this specific Makefile feature than the make version.
  210: AC_MSG_CHECKING(make type)
  211: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
  212: GNUMAKE='#'
  213: test "$make_type" = "GNU Make" && GNUMAKE=''
  214: AC_MSG_RESULT($make_type)
  215: AC_SUBST(GNUMAKE)
  216: 
  217: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
  218: OLDLDFLAGS=$LDFLAGS
  219: LDFLAGS="$LDFLAGS -export-dynamic"
  220: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
  221: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
  222: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
  223: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
  224: AC_MSG_RESULT($ac_export_dynamic)
  225: 
  226: #terminology is a bit unusual here: The host is the system on which
  227: #gforth will run; the system on which configure will run is the `build'
  228: case "$host_cpu" in
  229: 	arm*)
  230: 		machine=arm
  231: 		CFLAGS="$CFLAGS -fomit-frame-pointer"
  232: 		if test x$platform = xnxt; then
  233: 		   CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
  234: 		fi
  235: 		if test -z $arm_cacheflush; then
  236: 		   case "$host_os" in
  237: 		     *linux*)
  238: 			AC_LIBOBJ(../arch/arm/cacheflush-linux) 
  239: 			;;
  240: 		     *)   
  241: 			no_dynamic_default=1
  242: 			AC_LIBOBJ(../arch/arm/cacheflush0)
  243: 			AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
  244: 			;;
  245:                    esac
  246:                 else
  247:                    AC_LIBOBJ(../$arm_cacheflush)
  248:                    test $srcdir = . || AC_MSG_WARN([setting arm_cacheflush requires building in the source directory])
  249: 		fi
  250:                 #longer skipcodes lead to problems on ARM, and it uses
  251:                 #only 4-byte alignment anyway
  252: 		test "$skipcode" || skipcode="nop"
  253: 		;;
  254: 	hppa*)
  255: 		machine=hppa
  256: 		AC_LIBOBJ(../arch/hppa/cache)
  257: 		#-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
  258: 		LDFLAGS="$LDFLAGS -Xlinker -N"
  259: 		LIBS="$LIBS -L/lib/pa1.1/"
  260: 		;;
  261: 	sparc*)
  262: 		machine=sparc
  263: 		;;
  264: 	i386)
  265: 		machine=386
  266: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  267: 		;;
  268: 	i486)
  269: 		machine=386
  270: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  271: 		CFLAGS_1="$CFLAGS"
  272: 		CFLAGS="$CFLAGS -march=i486"
  273: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
  274: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
  275: 		;;
  276: 	i*86)
  277: 		machine=386
  278: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  279: 		CFLAGS_1="$CFLAGS"
  280: 		CFLAGS="$CFLAGS -march=pentium -mtune=generic"
  281: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -march=pentium")
  282: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
  283: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
  284: 		;;
  285: 	x86_64)
  286: 		case $CC
  287: 		in
  288: 		    *-m32*)
  289: 		    	machine=386
  290: 			CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  291: 			CFLAGS_1="$CFLAGS"
  292: 			CFLAGS="$CFLAGS -march=athlon64"
  293: 			;;
  294: 		    *)
  295: 		    	machine=amd64
  296: 			;;
  297: 		esac
  298: 		;;
  299: 	ia64*)
  300: 		machine=ia64
  301: 		AC_LIBOBJ(../arch/ia64/flush_icache_block)
  302: 		test "$skipcode" || skipcode="nop.i 0"
  303: 		#".skip 16" passes the test below,
  304: 		# but gives an assembler error in engine
  305: 		;;
  306:         m68k)
  307: 		machine=m68k
  308: 		CFLAGS="$CFLAGS -fomit-frame-pointer"
  309: 		if test "$host_os" = "nextstep3"
  310: 		then
  311: 			AC_LIBOBJ(termios)
  312: 		fi
  313: 		;;
  314: 	mips*)
  315: 		machine=mips
  316: 		AC_LIBOBJ(../arch/mips/check_prim) 
  317: 		#dynamic native code has the following problems on MIPS:
  318: 		#
  319: 		#1) J/JAL seems relocatable, but is are only
  320: 		#relocatable within a 256MB-segment.  While we try to
  321: 		#get the linker to arrange this, there is no guarantee
  322: 		#that this will succeed (and if the user uses a lot of
  323: 		#memory, it is likely to fail).
  324: 		#
  325: 		#2) The way we generate dynamic native code may
  326: 		#violate MIPS architectural restrictions (in
  327: 		#particular, the delay slots of LW, MFLO, etc.)
  328: 		#
  329: 		#Therefore we disable dynamic native code by default:
  330: 		if test -z "$no_dynamic_default"; then
  331: 		    no_dynamic_default=1
  332: 		    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
  333: 		fi
  334: 		;;
  335: 	alpha*)
  336: 		machine=alpha
  337: 		#full IEEE FP support for more uniformity across platforms:
  338: 		CFLAGS="$CFLAGS -mieee"
  339: 		;;
  340: 	power*|rs6000)
  341: 		machine=power
  342: 		AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
  343: 		#long long is broken on (at least) gcc-2.95.* for PPC
  344: 		test x$ac_cv_sizeof_long_long = x && 
  345: 		($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) &&
  346:                      ac_cv_sizeof_long_long=0
  347:                 #The only architecture with enough callee-saved registers
  348:                 test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
  349:                 #or use 2, hardly slower at run-time and starts up faster
  350: 
  351:                 #the skipcode that is normally selected below does not
  352:                 #work with gcc-3.[34]
  353: 		test "$skipcode" || skipcode="nop\nnop\nnop\nnop"
  354: 		;;
  355: 	*)
  356: 		AC_MSG_WARN([Using a generic machine description])
  357: 		AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
  358: 		AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
  359: 		machine=generic
  360: 		#I-cache flushing would be needed for dynamic code generation
  361: 		if test -z $no_dynamic_default; then
  362: 		    no_dynamic_default=1
  363: 		    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
  364: 		fi
  365: esac
  366: AC_SUBST(host)
  367: 
  368: MAKEINC=""
  369: GFORTH_EXE="true"
  370: 
  371: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
  372: if test x$EC_MODE = xtrue
  373: then
  374: 	echo "Check for arch/$machine/$platform/gforth.ld"
  375: 	if test -f arch/$machine/$platform/gforth.ld
  376: 	then
  377: 		LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
  378: 		if test x$platform = xnxt; then
  379: 			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 $LIBS"
  380: 		fi
  381: 	fi
  382: 	if test -f arch/$machine/$platform/make.inc
  383: 	then
  384: 		MAKEINC="include ../arch/$machine/$platform/make.inc"
  385: 		GFORTH_EXE="\$(MAKE) -f arch/$machine/$platform/make.inc \$@.exe"
  386: 	fi
  387: fi
  388: AC_SUBST(MAKEINC)
  389: 
  390: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
  391: 
  392: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
  393: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
  394: 		   [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
  395: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
  396: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
  397: 		   [number of registers in the default stack cache state for gforth-fast and gforth-native])
  398: 
  399: test x$GCC_PR15242_WORKAROUND = x ||
  400: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
  401:                    [force (1) or forbid (0) use of a workaround for a gcc performance bug])
  402: 
  403: dnl the following macro produces a warning with autoconf-2.1
  404: AC_CHECK_SIZEOF(char *)
  405: case "$ac_cv_sizeof_char_p" in
  406:   2)
  407:     wordsize=16
  408:     ;;
  409:   4)
  410:     wordsize=32
  411:     ;;
  412:   8)
  413:     wordsize=64
  414:     ;;
  415: esac
  416: 
  417: AC_CHECK_SIZEOF(void *)
  418: case "$ac_cv_sizeof_void_p" in
  419:   2)
  420:     vwordsize=16
  421:     ;;
  422:   4)
  423:     vwordsize=32
  424:     ;;
  425:   8)
  426:     vwordsize=64
  427:     ;;
  428: esac
  429: 
  430: AC_CHECK_SIZEOF(char)
  431: AC_CHECK_SIZEOF(short)
  432: AC_CHECK_SIZEOF(int)
  433: AC_CHECK_SIZEOF(long)
  434: AC_CHECK_SIZEOF(long long)
  435: AC_CHECK_SIZEOF(intptr_t)
  436: AC_CHECK_SIZEOF(int128_t)
  437: AC_CHECK_SIZEOF(uint128_t)
  438: 
  439: AC_MSG_CHECKING([for a C type for cells])
  440: ac_cv_int_type_cell=none
  441: case "$ac_cv_sizeof_char_p" in
  442:   $ac_cv_sizeof_int)
  443:     ac_cv_int_type_cell=int
  444:     ;;
  445:   $ac_cv_sizeof_short)
  446:     ac_cv_int_type_cell=short
  447:     ;;
  448:   $ac_cv_sizeof_char)
  449:     ac_cv_int_type_cell=char
  450:     ;;
  451:   $ac_cv_sizeof_long)
  452:     ac_cv_int_type_cell=long
  453:     ;;
  454:   $ac_cv_sizeof_long_long)
  455:     ac_cv_int_type_cell="long long"
  456:     ;;
  457:   $ac_cv_sizeof_intptr_t)
  458:     ac_cv_int_type_cell="intptr_t"
  459:     ;;
  460: esac
  461: AC_MSG_RESULT($ac_cv_int_type_cell)
  462: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
  463: 
  464: AC_MSG_CHECKING([for a C type for wydes])
  465: ac_cv_wyde_type_cell=none
  466: case 2 in
  467:   $ac_cv_sizeof_int)
  468:     ac_cv_wyde_type_cell=int
  469:     ;;
  470:   $ac_cv_sizeof_short)
  471:     ac_cv_wyde_type_cell=short
  472:     ;;
  473:   $ac_cv_sizeof_char)
  474:     ac_cv_wyde_type_cell=char
  475:     ;;
  476:   $ac_cv_sizeof_long)
  477:     ac_cv_wyde_type_cell=long
  478:     ;;
  479:   $ac_cv_sizeof_long_long)
  480:     ac_cv_wyde_type_cell="long long"
  481:     ;;
  482:   $ac_cv_sizeof_intptr_t)
  483:     ac_cv_wyde_type_cell="intptr_t"
  484:     ;;
  485: esac
  486: AC_MSG_RESULT($ac_cv_wyde_type_cell)
  487: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
  488: 
  489: AC_MSG_CHECKING([for a C type for tetrabytes])
  490: ac_cv_tetrabyte_type_cell=none
  491: case 4 in
  492:   $ac_cv_sizeof_int)
  493:     ac_cv_tetrabyte_type_cell=int
  494:     ;;
  495:   $ac_cv_sizeof_short)
  496:     ac_cv_tetrabyte_type_cell=short
  497:     ;;
  498:   $ac_cv_sizeof_char)
  499:     ac_cv_tetrabyte_type_cell=char
  500:     ;;
  501:   $ac_cv_sizeof_long)
  502:     ac_cv_tetrabyte_type_cell=long
  503:     ;;
  504:   $ac_cv_sizeof_long_long)
  505:     ac_cv_tetrabyte_type_cell="long long"
  506:     ;;
  507:   $ac_cv_sizeof_intptr_t)
  508:     ac_cv_tetrabyte_type_cell="intptr_t"
  509:     ;;
  510: esac
  511: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
  512: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
  513: 
  514: AC_MSG_CHECKING([for a C type for octabytes])
  515: ac_cv_octabyte_type_cell=none
  516: case 8 in
  517:   $ac_cv_sizeof_int)
  518:     ac_cv_octabyte_type_cell=int
  519:     ;;
  520:   $ac_cv_sizeof_short)
  521:     ac_cv_octabyte_type_cell=short
  522:     ;;
  523:   $ac_cv_sizeof_char)
  524:     ac_cv_octabyte_type_cell=char
  525:     ;;
  526:   $ac_cv_sizeof_long)
  527:     ac_cv_octabyte_type_cell=long
  528:     ;;
  529:   $ac_cv_sizeof_long_long)
  530:     ac_cv_octabyte_type_cell="long long"
  531:     ;;
  532:   $ac_cv_sizeof_intptr_t)
  533:     ac_cv_octabyte_type_cell="intptr_t"
  534:     ;;
  535: esac
  536: AC_MSG_RESULT($ac_cv_octabyte_type_cell)
  537: AC_DEFINE_UNQUOTED(OCTABYTE_TYPE,$ac_cv_octabyte_type_cell,[an integer type that is 8 bytes long])
  538: 
  539: AC_MSG_CHECKING([for a C type for double-cells])
  540: ac_cv_int_type_double_cell=none
  541: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
  542:   $ac_cv_sizeof_short)
  543:     ac_cv_int_type_double_cell=short
  544:     ;;
  545:   $ac_cv_sizeof_int)
  546:     ac_cv_int_type_double_cell=int
  547:     ;;
  548:   $ac_cv_sizeof_long)
  549:     ac_cv_int_type_double_cell=long
  550:     ;;
  551:   $ac_cv_sizeof_long_long)
  552:     ac_cv_int_type_double_cell="long long"
  553:     ;;
  554:   $ac_cv_sizeof_intptr_t)
  555:     ac_cv_int_type_double_cell="intptr_t"
  556:     ;;
  557:   $ac_cv_sizeof_int128_t)
  558:     ac_cv_int_type_double_cell="int128_t"
  559:     ;;
  560: esac
  561: AC_MSG_RESULT($ac_cv_int_type_double_cell)
  562: 
  563: AC_MSG_CHECKING([for a C type for unsigned double-cells])
  564: ac_cv_int_type_double_ucell=none
  565: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
  566:   $ac_cv_sizeof_short)
  567:     ac_cv_int_type_double_ucell="unsigned short"
  568:     ;;
  569:   $ac_cv_sizeof_int)
  570:     ac_cv_int_type_double_ucell="unsigned int"
  571:     ;;
  572:   $ac_cv_sizeof_long)
  573:     ac_cv_int_type_double_ucell="unsigned long"
  574:     ;;
  575:   $ac_cv_sizeof_long_long)
  576:     ac_cv_int_type_double_ucell="unsigned long long"
  577:     ;;
  578:   $ac_cv_sizeof_intptr_t)
  579:     ac_cv_int_type_double_ucell="unsigned intptr_t"
  580:     ;;
  581:   $ac_cv_sizeof_uint128_t)
  582:     ac_cv_int_type_double_ucell="uint128_t"
  583:     ;;
  584: esac
  585: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
  586: 
  587: if test "$ac_cv_int_type_double_cell" != none && \
  588:    test "$ac_cv_int_type_double_ucell" != none
  589: then
  590: 	AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
  591: 	AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
  592:         OPTS=-ll
  593: else
  594:         if test "$ac_cv_sizeof_char_p" = 8; then
  595:            OPTS="-ll -noll"
  596:         else
  597:            OPTS=-noll
  598:         fi
  599: fi
  600: 
  601: if grep FORCE_REG $srcdir/arch/$machine/machine.h >/dev/null; then
  602:    OPTS2=''
  603:    for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done
  604:    OPTS="$OPTS2 $OPTS"
  605: else
  606:   AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG])
  607: fi
  608: AC_SUBST(OPTS)
  609: 
  610: AC_TYPE_OFF_T
  611: AC_CHECK_SIZEOF(off_t)
  612: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
  613: ac_small_off_t=$?
  614: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
  615: 
  616: ENGINE_FLAGS=
  617: AC_SUBST(ENGINE_FLAGS)
  618: 
  619: # Try if GCC understands -fno-gcse
  620: 
  621: AC_MSG_CHECKING([if $CC understands -fno-gcse])
  622: CFLAGS_1="$CFLAGS"
  623: CFLAGS="$CFLAGS -fno-gcse"
  624: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
  625: CFLAGS="$CFLAGS_1"
  626: AC_MSG_RESULT($ac_nogcse)
  627: 
  628: # Try if GCC understands -fno-strict-aliasing
  629: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
  630: CFLAGS_1="$CFLAGS"
  631: CFLAGS="$CFLAGS -fno-strict-aliasing"
  632: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
  633: CFLAGS="$CFLAGS_1"
  634: AC_MSG_RESULT($ac_nostrictaliasing)
  635: 
  636: # Try if GCC understands -fno-crossjumping
  637: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
  638: CFLAGS_1="$CFLAGS"
  639: CFLAGS="$CFLAGS -fno-crossjumping"
  640: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
  641: CFLAGS="$CFLAGS_1"
  642: AC_MSG_RESULT($ac_nocrossjumping)
  643: 
  644: # Try if GCC understands -fno-reorder-blocks
  645: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
  646: CFLAGS_1="$CFLAGS"
  647: CFLAGS="$CFLAGS -fno-reorder-blocks"
  648: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
  649: CFLAGS="$CFLAGS_1"
  650: AC_MSG_RESULT($ac_noreorder_blocks)
  651: 
  652: # Try if GCC understands -falign-labels=1
  653: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
  654: CFLAGS_1="$CFLAGS"
  655: CFLAGS="$CFLAGS -falign-labels=1"
  656: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
  657: CFLAGS="$CFLAGS_1"
  658: AC_MSG_RESULT($ac_align_labels)
  659: 
  660: # Try if GCC understands -falign-loops=1
  661: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
  662: CFLAGS_1="$CFLAGS"
  663: CFLAGS="$CFLAGS -falign-loops=1"
  664: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
  665: CFLAGS="$CFLAGS_1"
  666: AC_MSG_RESULT($ac_align_loops)
  667: 
  668: # Try if GCC understands -falign-jumps=1
  669: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
  670: CFLAGS_1="$CFLAGS"
  671: CFLAGS="$CFLAGS -falign-jumps=1"
  672: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
  673: CFLAGS="$CFLAGS_1"
  674: AC_MSG_RESULT($ac_align_jumps)
  675: 
  676: if test -z "$LIBTOOL_CC"
  677: then
  678:   LIBTOOL_CC="$CC"
  679:   # Try if GCC understands -Wimplicit-function-declaration
  680:   AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration])
  681:   CFLAGS_1="$CFLAGS"
  682:   CFLAGS="$CFLAGS -Wimplicit-function-declaration"
  683:   AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",)
  684:   CFLAGS="$CFLAGS_1"
  685:   AC_MSG_RESULT($ac_align_jumps)
  686: fi
  687: AC_SUBST(LIBTOOL_CC)
  688: 
  689: 
  690: 
  691: # Try if GCC understands __attribute__((unused))
  692: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
  693: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
  694: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
  695: AC_MSG_RESULT($MAYBE_UNUSED)
  696: 
  697: # Try if GCC understands __thread
  698: AC_MSG_CHECKING([whether gcc understands '__thread'])
  699: AC_TRY_COMPILE(,[extern __thread int foo;],PER_THREAD='__thread',)
  700: AC_DEFINE_UNQUOTED(PER_THREAD,$PER_THREAD,[storage class for thread-local variables])
  701: AC_MSG_RESULT($PER_THREAD)
  702: 
  703: #try if m4 understands -s
  704: AC_MSG_CHECKING([how to invoke m4])
  705: if m4 -s /dev/null >/dev/null 2>&1; then
  706:  M4="m4 -s"
  707: else
  708:  M4=m4
  709: fi
  710: AC_SUBST(M4)
  711: AC_MSG_RESULT($M4)
  712: 
  713: #echo "machine='$machine'"
  714: 
  715: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
  716: if test x$EC_MODE = xfalse
  717: then
  718:   AS_IF([test -f $srcdir/arch/$machine/asm.fs],
  719:         [asm_fs=arch/$machine/asm.fs])
  720: fi
  721: AC_SUBST(asm_fs)
  722: 
  723: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
  724: if test x$EC_MODE = xfalse
  725: then
  726:   AS_IF([test -f $srcdir/arch/$machine/disasm.fs],
  727:    	[disasm_fs=arch/$machine/disasm.fs])
  728: fi
  729: AC_SUBST(disasm_fs)
  730: 
  731: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
  732: 
  733: case "$host_os" in
  734: 	*win32*)
  735: 		# !!!FIXME!!! problems with cygwin and ';' as path separator
  736: 		DIRSEP="\\\\"
  737: 		PATHSEP=";"
  738: 		#we want the builtins of command.com/cmd.exe and its
  739: 		# handling of .com files.
  740: 		#$COMSPEC contains the name of the Windows shell;
  741: 		# the ./ is there, because the bash does not recognize
  742: 		# absolute DOS filenames
  743: 		DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
  744: 		;;
  745: 	*darwin*)
  746: 		#Darwin uses some funny preprocessor by default; eliminate it:
  747: 		AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
  748: 		CFLAGS="$CFLAGS -no-cpp-precomp"
  749: 		DIRSEP="/"
  750: 		PATHSEP=":"
  751: 		DEFAULTSYSTEMPREFIX=""
  752:                 #the following magic value was suggested by
  753:                 #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
  754:                 AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
  755: 		;;
  756: 	*linux*)
  757: 		DIRSEP="/"
  758: 		PATHSEP=":"
  759: 		DEFAULTSYSTEMPREFIX=""
  760: 		if test -z "$LTDL_LIBRARY_PATH" -a "$wordsize" = 64; then
  761: 		   LTDL_LIBRARY_PATH=`/sbin/ldconfig -p |tail -n +2 |sed 's/^.* => //'|sed 's|/[[^/]]*$||'| grep 64 | sort -u | tr '\n' : | sed -e 's/:$//'`
  762: 		fi
  763: 		;;
  764: 	*)
  765: 		DIRSEP="/"
  766: 		PATHSEP=":"
  767: 		DEFAULTSYSTEMPREFIX=""
  768: 		;;
  769: esac
  770: AC_SUBST(DIRSEP)
  771: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
  772: AC_SUBST(PATHSEP)
  773: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
  774: AC_SUBST(DEFAULTSYSTEMPREFIX)
  775: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
  776: if test -n "$LTDL_LIBRARY_PATH"; then
  777:    AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux])
  778: fi                                                                
  779: 
  780: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
  781: #This magic incantation  seems to be completely undocumented.
  782: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
  783: 
  784: dnl Now a little support for DOS/DJGCC
  785: GFORTHFAST_EXE="$GFORTH_EXE"
  786: GFORTHITC_EXE="$GFORTH_EXE"
  787: GFORTHDITC_EXE="$GFORTH_EXE"
  788: AC_SUBST(GFORTH_EXE)
  789: AC_SUBST(GFORTHFAST_EXE)
  790: AC_SUBST(GFORTHITC_EXE)
  791: AC_SUBST(GFORTHDITC_EXE)
  792: 
  793: AC_SUBST(FORTHSIZES)
  794: 
  795: dnl if test "$PEEPHOLE" = "yes"
  796: dnl then
  797: dnl    PEEPHOLEFLAG="true"
  798: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
  799: dnl else
  800: dnl    PEEPHOLEFLAG="false"
  801: dnl fi
  802: PEEPHOLEFLAG="true"
  803: AC_SUBST(PEEPHOLEFLAG)
  804: 
  805: dnl copy commands for systems that don't have links
  806: AC_SUBST(LINK_KERNL)
  807: LINK_KERNL=""
  808: 
  809: #if test $host_os=dos
  810: #then
  811: #  echo Configuring for DOS!!!
  812: #  MAKE_EXE="coff2exe gforth"
  813: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
  814: #fi
  815: 
  816: dnl the following macro produces a warning with autoconf-2.1
  817: AC_C_BIGENDIAN
  818: AC_SUBST(KERNEL)
  819: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
  820: if test $ac_cv_c_bigendian != no; then
  821:   bytesex=b
  822:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
  823: else
  824:   bytesex=l
  825:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
  826: fi
  827: 
  828: #check how to do asm(".skip 16")
  829: #echo "CFLAGS=$CFLAGS"
  830: #echo "ac_link=$ac_link"
  831: AC_MSG_CHECKING([if and how we can waste code space])
  832: if test -z "$skipcode" && test x$cross_compiling = xyes; then
  833:    # we cannot perform the AC_TRY_RUN check when cross-compiling.  
  834:    skipcode=no
  835:    AC_MSG_RESULT([$skipcode, can't run checks since cross-compiling])
  836: elif test -z "$skipcode"; then
  837:     skipcode=no
  838:     CFLAGS_1="$CFLAGS"
  839:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
  840:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
  841:     do
  842: 	AC_TRY_RUN(
  843: [int foo(int,int,int);
  844: main()
  845: {
  846:   exit(foo(0,0,0)!=16);
  847: }
  848: int foo(int x, int y, int z)
  849: {
  850:   static void *labels[]={&&label1, &&label2};
  851:   if (x) {
  852:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
  853:   label1:
  854:     asm("$i"); /* or ".space 16" or somesuch */
  855:   label2: ;
  856:   }
  857:   {
  858:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
  859:   return labels[1]-labels[0];
  860:   }
  861: }]
  862: 	,skipcode=$i; break
  863: 	,,)
  864:     done
  865:     CFLAGS=$CFLAGS_1
  866: fi
  867: AC_MSG_RESULT($skipcode)
  868: if test "$skipcode" = no
  869: then 
  870:     if test -z $no_dynamic_default; then
  871: 	no_dynamic_default=1
  872: 	AC_MSG_WARN(Disabling default dynamic native code generation)
  873:     fi
  874:     AC_DEFINE_UNQUOTED(SKIP16,asm(""),statement for skipping 16 bytes)
  875: else
  876:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
  877: fi
  878: 
  879: AC_MSG_CHECKING([if and how we can do comments in asm statements])
  880: #the point here is to get asm statements that look different to
  881: #gcc's "optimizer"
  882: if test -z "$asmcomment"; then
  883:     asmcomment=no
  884:     CFLAGS_1="$CFLAGS"
  885:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
  886:     for i in '"# "' '"! "' '"; "'; do
  887: 	AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
  888:     done
  889:     CFLAGS=$CFLAGS_1
  890: fi
  891: AC_MSG_RESULT($asmcomment)
  892: if test "$asmcomment" != no
  893: then 
  894:     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
  895: fi
  896: 
  897: test "$no_dynamic_default" || no_dynamic_default=0
  898: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
  899: 
  900: dnl Checks for programs.
  901: AC_PROG_LN_S
  902: AC_PROG_INSTALL
  903: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
  904: 
  905: dnl check for the presence of Emacs
  906: AC_CHECK_PROGS(EMACS,emacs xemacs)
  907: test -n "$EMACS" && gforth_elc=gforth.elc
  908: AC_SUBST(gforth_elc)
  909: 
  910: dnl MacOS X has a libtool that does something else
  911: AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
  912: 
  913: dnl Checks for library functions
  914: dnl This check is just for making later checks link with libm.
  915: dnl using sin here is no good idea since it is built-into gcc and typechecked
  916: AC_CHECK_LIB(m,asin)
  917: AC_CHECK_LIB(ltdl,lt_dlinit)
  918: AC_CHECK_LIB(rt,clock_gettime)
  919: 
  920: if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
  921:   build_libcc_named=build-libcc-named
  922: else
  923:   build_libcc_named=""
  924:   AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries])
  925: fi
  926: AC_SUBST(build_libcc_named)
  927: 
  928: 
  929: if test -z "$GNU_LIBTOOL"; then
  930:   AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.])
  931:   AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.])
  932:   GNU_LIBTOOL=libtool
  933: fi
  934: 
  935: #check for libffi 2.x
  936: AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
  937: if test -z "$FFI_H_NAME"; then
  938:   AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
  939: fi
  940: AC_SUBST(FFI_H_NAME)
  941: AC_CHECK_LIB(ffi,ffi_call,LIBS="$LIBS")
  942: if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
  943: then
  944:   LIBFFIFLAG="true"
  945:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs"
  946: else
  947:   LIBFFIFLAG="false"
  948: fi
  949: #check for ffcall libraries
  950: #unfortunately, these four calls are separated out into a library each.
  951: AC_CHECK_LIB(avcall,__builtin_avcall,LIBS="$LIBS")
  952: dnl AC_CHECK_LIB(callback,__vacall_r)
  953: dnl AC_CHECK_LIB(vacall,vacall)
  954: dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
  955: if test $ac_cv_lib_avcall___builtin_avcall = yes; then
  956:   FFCALLFLAG="true"
  957:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs"
  958: else
  959:   FFCALLFLAG="false"
  960: fi
  961: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then
  962:   AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries])
  963: fi
  964: AC_SUBST(LIBFFIFLAG)
  965: AC_SUBST(FFCALLFLAG)
  966: AC_SUBST(LIBCC_BUILD_SRC)
  967: if test "$host_os" != "nextstep3"
  968: then
  969: 	AC_FUNC_MEMCMP
  970: fi
  971: AC_REPLACE_FUNCS(memmove strtoul pow10 sincos strerror strsignal atanh)
  972: AC_FUNC_FSEEKO
  973: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep clock_gettime)
  974: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
  975: AC_DECL_SYS_SIGLIST
  976: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
  977: AC_CHECK_FUNCS(expm1 log1p)
  978: AC_REPLACE_FUNCS(rint ecvt)
  979: dnl No check for select, because our replacement is no good under
  980: dnl anything but DOS
  981: AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h endian.h)
  982: AC_FUNC_FNMATCH
  983: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
  984: AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth)
  985: AM_PATH_LISPDIR
  986: 
  987: kernel_fi=kernl${vwordsize}${bytesex}.fi
  988: include_fi=kernl${wordsize}${bytesex}${EC}.fi
  989: AC_SUBST(kernel_fi)
  990: AC_SUBST(include_fi)
  991: 
  992: # Find installed Gforth
  993: AC_MSG_CHECKING([for gforth])
  994: GFORTH="`cd / && which gforth 2>/dev/null`"
  995: #the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
  996: (cd / && $GFORTH -e bye >/dev/null 2>/dev/null  && test "$srcdir" = ".") || GFORTH=""
  997: if test -z "$GFORTH"; then
  998:   PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
  999:   GFORTHKER='echo "You need to configure with a gforth in \$PATH to build this part" && false'
 1000:   kernel_anti_dependence=''
 1001: else
 1002:   GFORTH_FI=`cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`
 1003:   PREFORTH="$GFORTH -i $GFORTH_FI" ;
 1004:   KERNLX_FI1=`echo $GFORTH_FI | sed -e s/lib/share/g -e s/gforth.fi/kernl*.fi/g`
 1005:   KERNLX_FI2=`echo $GFORTH_FI | sed -e s/gforth.fi/kernl*.fi/g`
 1006:   test -f $KERNLX_FI1 && KERNLX_FI=$KERNLX_FI1
 1007:   test -f $KERNLX_FI2 && KERNLX_FI=$KERNLX_FI2
 1008:   GFORTHKER="$GFORTH -i `echo $KERNLX_FI`" ;
 1009:   kernel_anti_dependence='$(kernel_fi)'
 1010: fi
 1011: AC_SUBST(PREFORTH)
 1012: AC_SUBST(GFORTHKER)
 1013: AC_SUBST(kernel_anti_dependence)
 1014: AC_MSG_RESULT($PREFORTH)
 1015: 
 1016: #this breaks bindists
 1017: #dnl replace srource directory by absolute value
 1018: #if test $srcdir = "."; then srcdir=`pwd` 
 1019: #fi
 1020: 
 1021: AC_SUBST(machine)
 1022: AC_CONFIG_FILES([
 1023: Makefile
 1024: Makedist
 1025: gforthmi
 1026: vmgen
 1027: machpc.fs
 1028: envos.fs
 1029: preforth
 1030: libforth
 1031: gforthker
 1032: engine/Makefile
 1033: engine/libcc.h
 1034: doc/version.texi
 1035: build-ec ])
 1036: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
 1037: chmod +x gforthmi
 1038: chmod +x vmgen
 1039: chmod +x build-ec
 1040: chmod +x preforth
 1041: chmod +x libforth
 1042: chmod +x gforthker
 1043: test -d kernel||mkdir kernel
 1044: if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi
 1045: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
 1046: $srcdir/mkinstalldirs arch/$machine
 1047: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],
 1048: [PACKAGE_VERSION=$PACKAGE_VERSION
 1049:  machine=$machine])
 1050: AC_OUTPUT

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