File:  [gforth] / gforth / configure.in
Revision 1.307: download - view: text, annotated - select for diffs
Tue Apr 3 22:40:14 2012 UTC (7 years, 6 months ago) by pazsan
Branches: MAIN
CVS tags: HEAD
Added --with-arch option to install a Gforth with a specific suffix - allows non-conflicting install with 32 and 64 bits. All non-arch files are shared with the two installs

    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=${withval}
  126:   NO_EC=""
  127:   NO_CROSS="#"
  128: fi])
  129: 
  130: AC_ARG_WITH(arch,
  131: 	AC_HELP_STRING([--with-arch=<arch>],
  132: 			[  Build gforth binaries with <arch> postfix]),
  133: [if test "$withval" = "no"; then
  134:   ARCH=""
  135: else
  136:   ARCH=-${withval}
  137: fi])
  138: AC_SUBST(ARCH)
  139: 
  140: #variables mentioned in INSTALL
  141: AC_ARG_VAR(SH, [The shell])
  142: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
  143: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
  144: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
  145: AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).])
  146: 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)])
  147: AC_ARG_VAR(LIBCC_BUILD_SRC, [(Additional) libcc interface source files that should be processed on building and installation (default none)])
  148: 
  149: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
  150: AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)])
  151: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
  152: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
  153: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
  154: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
  155: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
  156: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
  157: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
  158: AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)])
  159: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
  160: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
  161: AC_ARG_VAR(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches])
  162: AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code])
  163: AC_ARG_VAR(asmcomment, [assembler comment start string])
  164: AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)])
  165: AC_ARG_VAR(LTDL_LIBRARY_PATH, [additional directories for libltdl (for some 64-bit platforms)])
  166: 
  167: #set up feature test macros, so the tests get them right:
  168: # turn on all POSIX, SUSv3, and GNU features if available
  169: AC_GNU_SOURCE
  170: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
  171: 
  172: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
  173: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
  174: dnl but not for _XOPEN_SOURCE)
  175: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
  176: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
  177: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
  178: # turn on large file support with 64-bit off_t where available
  179: AC_SYS_LARGEFILE
  180: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
  181: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
  182: 
  183: #currently we force direct threading this way.  Eventually we should
  184: #setup in the arch and engine files right
  185: 
  186: AC_PROG_CC
  187: 
  188: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
  189: 
  190: test "x$SH" = "x" && SH="/bin/sh"
  191: 
  192: AC_MSG_CHECKING([whether to use two dispatches per conditional branch])
  193: test x$condbranch_opt = x && 
  194: if ($CC -v 2>&1 |grep 'gcc version 3' >/dev/null); then
  195:    condbranch_opt=0
  196: else
  197:    condbranch_opt=1
  198: fi
  199: AC_MSG_RESULT($condbranch_opt)
  200: AC_SUBST(condbranch_opt)
  201: AC_SUBST(host_cpu)
  202: 
  203: AC_SUBST(SH)
  204: AC_SUBST(CC)
  205: AC_SUBST(GCC_LD)
  206: AC_SUBST(DEBUGFLAG)
  207: AC_SUBST(EC)
  208: AC_SUBST(NO_EC)
  209: AC_SUBST(NO_CROSS)
  210: AC_SUBST(EC_MODE)
  211: AC_SUBST(engine2)
  212: AC_SUBST(engine_fast2)
  213: AC_SUBST(no_dynamic)
  214: AC_SUBST(image_i)
  215: AC_SUBST(signals_o)
  216: 
  217: #this is used to disable some (not generally essential) part of the
  218: #Makefile that some makes don't grok.  It would be better to test for
  219: #this specific Makefile feature than the make version.
  220: AC_MSG_CHECKING(make type)
  221: make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'`
  222: GNUMAKE='#'
  223: test "$make_type" = "GNU Make" && GNUMAKE=''
  224: AC_MSG_RESULT($make_type)
  225: AC_SUBST(GNUMAKE)
  226: 
  227: if test "$ac_export_dynamic" != yes; then
  228:   AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
  229:   OLDLDFLAGS=$LDFLAGS
  230:   LDFLAGS="$LDFLAGS -export-dynamic"
  231:   dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
  232:   dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
  233:   AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
  234:   test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
  235:   AC_MSG_RESULT($ac_export_dynamic)
  236: else
  237:   LDFLAGS="$LDFLAGS -export-dynamic"
  238: fi
  239: 
  240: #terminology is a bit unusual here: The host is the system on which
  241: #gforth will run; the system on which configure will run is the `build'
  242: case "$host_cpu" in
  243: 	arm*)
  244: 		machine=arm
  245: 		CFLAGS="$CFLAGS -fomit-frame-pointer"
  246: 		if test x$platform = xnxt; then
  247: 		   CFLAGS="$CFLAGS -mthumb -mthumb-interwork"
  248: 		fi
  249: 		if test -z $arm_cacheflush; then
  250: 		   case "$host_os" in
  251: 		     *linux*)
  252: 			AC_LIBOBJ(../arch/arm/cacheflush-linux) 
  253: 			;;
  254: 		     *)   
  255: 			no_dynamic_default=1
  256: 			AC_LIBOBJ(../arch/arm/cacheflush0)
  257: 			AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
  258: 			;;
  259:                    esac
  260:                 else
  261:                    AC_LIBOBJ(../$arm_cacheflush)
  262:                    test $srcdir = . || AC_MSG_WARN([setting arm_cacheflush requires building in the source directory])
  263: 		fi
  264:                 #longer skipcodes lead to problems on ARM, and it uses
  265:                 #only 4-byte alignment anyway
  266: 		test "$skipcode" || skipcode="nop"
  267: 		;;
  268: 	hppa*)
  269: 		machine=hppa
  270: 		AC_LIBOBJ(../arch/hppa/cache)
  271: 		#-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
  272: 		LDFLAGS="$LDFLAGS -Xlinker -N"
  273: 		LIBS="$LIBS -L/lib/pa1.1/"
  274: 		;;
  275: 	sparc*)
  276: 		machine=sparc
  277: 		;;
  278: 	i386)
  279: 		machine=386
  280: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  281: 		;;
  282: 	i486)
  283: 		machine=386
  284: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  285: 		CFLAGS_1="$CFLAGS"
  286: 		CFLAGS="$CFLAGS -march=i486"
  287: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
  288: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
  289: 		;;
  290: 	i*86)
  291: 		machine=386
  292: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  293: 		CFLAGS_1="$CFLAGS"
  294: 		CFLAGS="$CFLAGS -march=pentium -mtune=generic"
  295: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -march=pentium")
  296: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
  297: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1")
  298: 		;;
  299: 	x86_64)
  300: 		case $CC
  301: 		in
  302: 		    *-m32*)
  303: 		    	machine=386
  304: 			CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr"
  305: 			CFLAGS_1="$CFLAGS"
  306: 			CFLAGS="$CFLAGS -march=athlon64"
  307: 			;;
  308: 		    *)
  309: 		    	machine=amd64
  310: 			;;
  311: 		esac
  312: 		;;
  313: 	ia64*)
  314: 		machine=ia64
  315: 		AC_LIBOBJ(../arch/ia64/flush_icache_block)
  316: 		test "$skipcode" || skipcode="nop.i 0"
  317: 		#".skip 16" passes the test below,
  318: 		# but gives an assembler error in engine
  319: 		;;
  320:         m68k)
  321: 		machine=m68k
  322: 		CFLAGS="$CFLAGS -fomit-frame-pointer"
  323: 		if test "$host_os" = "nextstep3"
  324: 		then
  325: 			AC_LIBOBJ(termios)
  326: 		fi
  327: 		;;
  328: 	mips*)
  329: 		machine=mips
  330: 		AC_LIBOBJ(../arch/mips/check_prim) 
  331: 		#dynamic native code has the following problems on MIPS:
  332: 		#
  333: 		#1) J/JAL seems relocatable, but is are only
  334: 		#relocatable within a 256MB-segment.  While we try to
  335: 		#get the linker to arrange this, there is no guarantee
  336: 		#that this will succeed (and if the user uses a lot of
  337: 		#memory, it is likely to fail).
  338: 		#
  339: 		#2) The way we generate dynamic native code may
  340: 		#violate MIPS architectural restrictions (in
  341: 		#particular, the delay slots of LW, MFLO, etc.)
  342: 		#
  343: 		#Therefore we disable dynamic native code by default:
  344: 		if test -z "$no_dynamic_default"; then
  345: 		    no_dynamic_default=1
  346: 		    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
  347: 		fi
  348: 		;;
  349: 	alpha*)
  350: 		machine=alpha
  351: 		#full IEEE FP support for more uniformity across platforms:
  352: 		CFLAGS="$CFLAGS -mieee"
  353: 		;;
  354: 	power*|rs6000)
  355: 		machine=power
  356: 		AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
  357: 		#long long is broken on (at least) gcc-2.95.* for PPC
  358: 		test x$ac_cv_sizeof_long_long = x && 
  359: 		($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) &&
  360:                      ac_cv_sizeof_long_long=0
  361:                 #The only architecture with enough callee-saved registers
  362:                 test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3
  363:                 #or use 2, hardly slower at run-time and starts up faster
  364: 
  365:                 #the skipcode that is normally selected below does not
  366:                 #work with gcc-3.[34]
  367: 		test "$skipcode" || skipcode="nop\nnop\nnop\nnop"
  368: 		;;
  369: 	*)
  370: 		AC_MSG_WARN([Using a generic machine description])
  371: 		AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
  372: 		AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
  373: 		machine=generic
  374: 		#I-cache flushing would be needed for dynamic code generation
  375: 		if test -z $no_dynamic_default; then
  376: 		    no_dynamic_default=1
  377: 		    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
  378: 		fi
  379: esac
  380: AC_SUBST(host)
  381: 
  382: MAKEINC=""
  383: GFORTH_EXE="true"
  384: 
  385: echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)"
  386: if test x$EC_MODE = xtrue
  387: then
  388: 	echo "Check for arch/$machine/$platform/gforth.ld"
  389: 	if test -f arch/$machine/$platform/gforth.ld
  390: 	then
  391: 		LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS"
  392: 		if test x$platform = xnxt; then
  393: 			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 $LIBS"
  394: 		fi
  395: 	fi
  396: 	if test -f arch/$machine/$platform/make.inc
  397: 	then
  398: 		MAKEINC="include ../arch/$machine/$platform/make.inc"
  399: 		GFORTH_EXE="\$(MAKE) -f arch/$machine/$platform/make.inc \$@.exe"
  400: 	fi
  401: fi
  402: AC_SUBST(MAKEINC)
  403: 
  404: AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).])
  405: 
  406: test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1
  407: AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS,
  408: 		   [number of registers in the maximum stack cache state for gforth-fast and gforth-native])
  409: test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1
  410: AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST,
  411: 		   [number of registers in the default stack cache state for gforth-fast and gforth-native])
  412: 
  413: test x$GCC_PR15242_WORKAROUND = x ||
  414: AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND,
  415:                    [force (1) or forbid (0) use of a workaround for a gcc performance bug])
  416: 
  417: dnl the following macro produces a warning with autoconf-2.1
  418: AC_CHECK_SIZEOF(char *)
  419: case "$ac_cv_sizeof_char_p" in
  420:   2)
  421:     wordsize=16
  422:     ;;
  423:   4)
  424:     wordsize=32
  425:     ;;
  426:   8)
  427:     wordsize=64
  428:     ;;
  429: esac
  430: 
  431: AC_CHECK_SIZEOF(void *)
  432: case "$ac_cv_sizeof_void_p" in
  433:   2)
  434:     vwordsize=16
  435:     ;;
  436:   4)
  437:     vwordsize=32
  438:     ;;
  439:   8)
  440:     vwordsize=64
  441:     ;;
  442: esac
  443: 
  444: AC_CHECK_SIZEOF(char)
  445: AC_CHECK_SIZEOF(short)
  446: AC_CHECK_SIZEOF(int)
  447: AC_CHECK_SIZEOF(long)
  448: AC_CHECK_SIZEOF(long long)
  449: AC_CHECK_SIZEOF(intptr_t)
  450: AC_CHECK_SIZEOF(int128_t)
  451: AC_CHECK_SIZEOF(uint128_t)
  452: 
  453: AC_MSG_CHECKING([for a C type for cells])
  454: ac_cv_int_type_cell=none
  455: case "$ac_cv_sizeof_char_p" in
  456:   $ac_cv_sizeof_int)
  457:     ac_cv_int_type_cell=int
  458:     ;;
  459:   $ac_cv_sizeof_short)
  460:     ac_cv_int_type_cell=short
  461:     ;;
  462:   $ac_cv_sizeof_char)
  463:     ac_cv_int_type_cell=char
  464:     ;;
  465:   $ac_cv_sizeof_long)
  466:     ac_cv_int_type_cell=long
  467:     ;;
  468:   $ac_cv_sizeof_long_long)
  469:     ac_cv_int_type_cell="long long"
  470:     ;;
  471:   $ac_cv_sizeof_intptr_t)
  472:     ac_cv_int_type_cell="intptr_t"
  473:     ;;
  474: esac
  475: AC_MSG_RESULT($ac_cv_int_type_cell)
  476: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
  477: 
  478: AC_MSG_CHECKING([for a C type for wydes])
  479: ac_cv_wyde_type_cell=none
  480: case 2 in
  481:   $ac_cv_sizeof_int)
  482:     ac_cv_wyde_type_cell=int
  483:     ;;
  484:   $ac_cv_sizeof_short)
  485:     ac_cv_wyde_type_cell=short
  486:     ;;
  487:   $ac_cv_sizeof_char)
  488:     ac_cv_wyde_type_cell=char
  489:     ;;
  490:   $ac_cv_sizeof_long)
  491:     ac_cv_wyde_type_cell=long
  492:     ;;
  493:   $ac_cv_sizeof_long_long)
  494:     ac_cv_wyde_type_cell="long long"
  495:     ;;
  496:   $ac_cv_sizeof_intptr_t)
  497:     ac_cv_wyde_type_cell="intptr_t"
  498:     ;;
  499: esac
  500: AC_MSG_RESULT($ac_cv_wyde_type_cell)
  501: AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long])
  502: 
  503: AC_MSG_CHECKING([for a C type for tetrabytes])
  504: ac_cv_tetrabyte_type_cell=none
  505: case 4 in
  506:   $ac_cv_sizeof_int)
  507:     ac_cv_tetrabyte_type_cell=int
  508:     ;;
  509:   $ac_cv_sizeof_short)
  510:     ac_cv_tetrabyte_type_cell=short
  511:     ;;
  512:   $ac_cv_sizeof_char)
  513:     ac_cv_tetrabyte_type_cell=char
  514:     ;;
  515:   $ac_cv_sizeof_long)
  516:     ac_cv_tetrabyte_type_cell=long
  517:     ;;
  518:   $ac_cv_sizeof_long_long)
  519:     ac_cv_tetrabyte_type_cell="long long"
  520:     ;;
  521:   $ac_cv_sizeof_intptr_t)
  522:     ac_cv_tetrabyte_type_cell="intptr_t"
  523:     ;;
  524: esac
  525: AC_MSG_RESULT($ac_cv_tetrabyte_type_cell)
  526: AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long])
  527: 
  528: AC_MSG_CHECKING([for a C type for octabytes])
  529: ac_cv_octabyte_type_cell=none
  530: case 8 in
  531:   $ac_cv_sizeof_int)
  532:     ac_cv_octabyte_type_cell=int
  533:     ;;
  534:   $ac_cv_sizeof_short)
  535:     ac_cv_octabyte_type_cell=short
  536:     ;;
  537:   $ac_cv_sizeof_char)
  538:     ac_cv_octabyte_type_cell=char
  539:     ;;
  540:   $ac_cv_sizeof_long)
  541:     ac_cv_octabyte_type_cell=long
  542:     ;;
  543:   $ac_cv_sizeof_long_long)
  544:     ac_cv_octabyte_type_cell="long long"
  545:     ;;
  546:   $ac_cv_sizeof_intptr_t)
  547:     ac_cv_octabyte_type_cell="intptr_t"
  548:     ;;
  549: esac
  550: AC_MSG_RESULT($ac_cv_octabyte_type_cell)
  551: AC_DEFINE_UNQUOTED(OCTABYTE_TYPE,$ac_cv_octabyte_type_cell,[an integer type that is 8 bytes long])
  552: 
  553: AC_MSG_CHECKING([for a C type for double-cells])
  554: ac_cv_int_type_double_cell=none
  555: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
  556:   $ac_cv_sizeof_short)
  557:     ac_cv_int_type_double_cell=short
  558:     ;;
  559:   $ac_cv_sizeof_int)
  560:     ac_cv_int_type_double_cell=int
  561:     ;;
  562:   $ac_cv_sizeof_long)
  563:     ac_cv_int_type_double_cell=long
  564:     ;;
  565:   $ac_cv_sizeof_long_long)
  566:     ac_cv_int_type_double_cell="long long"
  567:     ;;
  568:   $ac_cv_sizeof_intptr_t)
  569:     ac_cv_int_type_double_cell="intptr_t"
  570:     ;;
  571:   $ac_cv_sizeof_int128_t)
  572:     ac_cv_int_type_double_cell="int128_t"
  573:     ;;
  574: esac
  575: AC_MSG_RESULT($ac_cv_int_type_double_cell)
  576: 
  577: AC_MSG_CHECKING([for a C type for unsigned double-cells])
  578: ac_cv_int_type_double_ucell=none
  579: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
  580:   $ac_cv_sizeof_short)
  581:     ac_cv_int_type_double_ucell="unsigned short"
  582:     ;;
  583:   $ac_cv_sizeof_int)
  584:     ac_cv_int_type_double_ucell="unsigned int"
  585:     ;;
  586:   $ac_cv_sizeof_long)
  587:     ac_cv_int_type_double_ucell="unsigned long"
  588:     ;;
  589:   $ac_cv_sizeof_long_long)
  590:     ac_cv_int_type_double_ucell="unsigned long long"
  591:     ;;
  592:   $ac_cv_sizeof_intptr_t)
  593:     ac_cv_int_type_double_ucell="unsigned intptr_t"
  594:     ;;
  595:   $ac_cv_sizeof_uint128_t)
  596:     ac_cv_int_type_double_ucell="uint128_t"
  597:     ;;
  598: esac
  599: AC_MSG_RESULT($ac_cv_int_type_double_ucell)
  600: 
  601: if test "$ac_cv_int_type_double_cell" != none && \
  602:    test "$ac_cv_int_type_double_ucell" != none
  603: then
  604: 	AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
  605: 	AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer])
  606:         OPTS=-ll
  607: else
  608:         if test "$ac_cv_sizeof_char_p" = 8; then
  609:            OPTS="-ll -noll"
  610:         else
  611:            OPTS=-noll
  612:         fi
  613: fi
  614: 
  615: if grep FORCE_REG $srcdir/arch/$machine/machine.h >/dev/null; then
  616:    OPTS2=''
  617:    for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done
  618:    OPTS="$OPTS2 $OPTS"
  619: else
  620:   AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG])
  621: fi
  622: AC_SUBST(OPTS)
  623: 
  624: AC_TYPE_OFF_T
  625: AC_CHECK_SIZEOF(off_t)
  626: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
  627: ac_small_off_t=$?
  628: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
  629: 
  630: ENGINE_FLAGS=
  631: AC_SUBST(ENGINE_FLAGS)
  632: 
  633: # Try if GCC understands -fno-gcse
  634: 
  635: AC_MSG_CHECKING([if $CC understands -fno-gcse])
  636: CFLAGS_1="$CFLAGS"
  637: CFLAGS="$CFLAGS -fno-gcse"
  638: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
  639: CFLAGS="$CFLAGS_1"
  640: AC_MSG_RESULT($ac_nogcse)
  641: 
  642: # Try if GCC understands -fno-strict-aliasing
  643: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
  644: CFLAGS_1="$CFLAGS"
  645: CFLAGS="$CFLAGS -fno-strict-aliasing"
  646: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
  647: CFLAGS="$CFLAGS_1"
  648: AC_MSG_RESULT($ac_nostrictaliasing)
  649: 
  650: # Try if GCC understands -fno-crossjumping
  651: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
  652: CFLAGS_1="$CFLAGS"
  653: CFLAGS="$CFLAGS -fno-crossjumping"
  654: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
  655: CFLAGS="$CFLAGS_1"
  656: AC_MSG_RESULT($ac_nocrossjumping)
  657: 
  658: # Try if GCC understands -fno-reorder-blocks
  659: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
  660: CFLAGS_1="$CFLAGS"
  661: CFLAGS="$CFLAGS -fno-reorder-blocks"
  662: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
  663: CFLAGS="$CFLAGS_1"
  664: AC_MSG_RESULT($ac_noreorder_blocks)
  665: 
  666: # Try if GCC understands -falign-labels=1
  667: AC_MSG_CHECKING([if $CC understands -falign-labels=1])
  668: CFLAGS_1="$CFLAGS"
  669: CFLAGS="$CFLAGS -falign-labels=1"
  670: AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no)
  671: CFLAGS="$CFLAGS_1"
  672: AC_MSG_RESULT($ac_align_labels)
  673: 
  674: # Try if GCC understands -falign-loops=1
  675: AC_MSG_CHECKING([if $CC understands -falign-loops=1])
  676: CFLAGS_1="$CFLAGS"
  677: CFLAGS="$CFLAGS -falign-loops=1"
  678: AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no)
  679: CFLAGS="$CFLAGS_1"
  680: AC_MSG_RESULT($ac_align_loops)
  681: 
  682: # Try if GCC understands -falign-jumps=1
  683: AC_MSG_CHECKING([if $CC understands -falign-jumps=1])
  684: CFLAGS_1="$CFLAGS"
  685: CFLAGS="$CFLAGS -falign-jumps=1"
  686: AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no)
  687: CFLAGS="$CFLAGS_1"
  688: AC_MSG_RESULT($ac_align_jumps)
  689: 
  690: if test -z "$LIBTOOL_CC"
  691: then
  692:   LIBTOOL_CC="$CC"
  693:   # Try if GCC understands -Wimplicit-function-declaration
  694:   AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration])
  695:   CFLAGS_1="$CFLAGS"
  696:   CFLAGS="$CFLAGS -Wimplicit-function-declaration"
  697:   AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",)
  698:   CFLAGS="$CFLAGS_1"
  699:   AC_MSG_RESULT($ac_align_jumps)
  700: fi
  701: AC_SUBST(LIBTOOL_CC)
  702: 
  703: 
  704: 
  705: # Try if GCC understands __attribute__((unused))
  706: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
  707: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
  708: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
  709: AC_MSG_RESULT($MAYBE_UNUSED)
  710: 
  711: # Try if GCC understands __thread
  712: AC_CACHE_CHECK([whether gcc understands '__thread'], [ac_cv_thread],
  713:      [AC_TRY_COMPILE(,[extern __thread int foo;],
  714:                         [ac_cv_thread=yes],
  715:                         [ac_cv_thread=no])])
  716: test x$ac_cv_thread = xyes && PER_THREAD='__thread'
  717: AC_DEFINE_UNQUOTED(PER_THREAD,$PER_THREAD,[storage class for thread-local variables])
  718: 
  719: #try if m4 understands -s
  720: AC_MSG_CHECKING([how to invoke m4])
  721: if m4 -s /dev/null >/dev/null 2>&1; then
  722:  M4="m4 -s"
  723: else
  724:  M4=m4
  725: fi
  726: AC_SUBST(M4)
  727: AC_MSG_RESULT($M4)
  728: 
  729: #echo "machine='$machine'"
  730: 
  731: dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
  732: if test x$EC_MODE = xfalse
  733: then
  734:   AS_IF([test -f $srcdir/arch/$machine/asm.fs],
  735:         [asm_fs=arch/$machine/asm.fs])
  736: fi
  737: AC_SUBST(asm_fs)
  738: 
  739: dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
  740: if test x$EC_MODE = xfalse
  741: then
  742:   AS_IF([test -f $srcdir/arch/$machine/disasm.fs],
  743:    	[disasm_fs=arch/$machine/disasm.fs])
  744: fi
  745: AC_SUBST(disasm_fs)
  746: 
  747: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
  748: 
  749: case "$host_os" in
  750: 	*win32*)
  751: 		# !!!FIXME!!! problems with cygwin and ';' as path separator
  752: 		DIRSEP="\\\\"
  753: 		PATHSEP=";"
  754: 		#we want the builtins of command.com/cmd.exe and its
  755: 		# handling of .com files.
  756: 		#$COMSPEC contains the name of the Windows shell;
  757: 		# the ./ is there, because the bash does not recognize
  758: 		# absolute DOS filenames
  759: 		DEFAULTSYSTEMPREFIX="./$COMSPEC /c "
  760: 		;;
  761: 	*darwin*)
  762: 		#Darwin uses some funny preprocessor by default; eliminate it:
  763: 		AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
  764: 		CFLAGS="$CFLAGS -no-cpp-precomp"
  765: 		DIRSEP="/"
  766: 		PATHSEP=":"
  767: 		DEFAULTSYSTEMPREFIX=""
  768:                 #the following magic value was suggested by
  769:                 #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html
  770:                 AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions])
  771: 		;;
  772: 	*linux*)
  773: 		DIRSEP="/"
  774: 		PATHSEP=":"
  775: 		DEFAULTSYSTEMPREFIX=""
  776: 		if test -z "$LTDL_LIBRARY_PATH" -a "$wordsize" = 64; then
  777: 		   LTDL_LIBRARY_PATH=`/sbin/ldconfig -p |tail -n +2 |sed 's/^.* => //'|sed 's|/[[^/]]*$||'| grep 64 | sort -u | tr '\n' : | sed -e 's/:$//'`
  778: 		fi
  779: 		;;
  780: 	*)
  781: 		DIRSEP="/"
  782: 		PATHSEP=":"
  783: 		DEFAULTSYSTEMPREFIX=""
  784: 		;;
  785: esac
  786: AC_SUBST(DIRSEP)
  787: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
  788: AC_SUBST(PATHSEP)
  789: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
  790: AC_SUBST(DEFAULTSYSTEMPREFIX)
  791: AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX])
  792: if test -n "$LTDL_LIBRARY_PATH"; then
  793:    AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux])
  794: fi                                                                
  795: 
  796: #work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>)
  797: #This magic incantation  seems to be completely undocumented.
  798: AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true])
  799: 
  800: dnl Now a little support for DOS/DJGCC
  801: GFORTHFAST_EXE="$GFORTH_EXE"
  802: GFORTHITC_EXE="$GFORTH_EXE"
  803: GFORTHDITC_EXE="$GFORTH_EXE"
  804: AC_SUBST(GFORTH_EXE)
  805: AC_SUBST(GFORTHFAST_EXE)
  806: AC_SUBST(GFORTHITC_EXE)
  807: AC_SUBST(GFORTHDITC_EXE)
  808: 
  809: AC_SUBST(FORTHSIZES)
  810: 
  811: dnl if test "$PEEPHOLE" = "yes"
  812: dnl then
  813: dnl    PEEPHOLEFLAG="true"
  814: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
  815: dnl else
  816: dnl    PEEPHOLEFLAG="false"
  817: dnl fi
  818: PEEPHOLEFLAG="true"
  819: AC_SUBST(PEEPHOLEFLAG)
  820: 
  821: dnl copy commands for systems that don't have links
  822: AC_SUBST(LINK_KERNL)
  823: LINK_KERNL=""
  824: 
  825: #if test $host_os=dos
  826: #then
  827: #  echo Configuring for DOS!!!
  828: #  MAKE_EXE="coff2exe gforth"
  829: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
  830: #fi
  831: 
  832: dnl the following macro produces a warning with autoconf-2.1
  833: AC_C_BIGENDIAN
  834: AC_SUBST(KERNEL)
  835: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
  836: if test $ac_cv_c_bigendian != no; then
  837:   bytesex=b
  838:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
  839: else
  840:   bytesex=l
  841:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
  842: fi
  843: 
  844: #check how to do asm(".skip 16")
  845: #echo "CFLAGS=$CFLAGS"
  846: #echo "ac_link=$ac_link"
  847: AC_MSG_CHECKING([if and how we can waste code space])
  848: if test -z "$skipcode" && test x$cross_compiling = xyes; then
  849:    # we cannot perform the AC_TRY_RUN check when cross-compiling.  
  850:    skipcode=no
  851:    AC_MSG_RESULT([$skipcode, can't run checks since cross-compiling])
  852: elif test -z "$skipcode"; then
  853:     skipcode=no
  854:     CFLAGS_1="$CFLAGS"
  855:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
  856:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
  857:     do
  858: 	AC_TRY_RUN(
  859: [int foo(int,int,int);
  860: main()
  861: {
  862:   exit(foo(0,0,0)!=16);
  863: }
  864: int foo(int x, int y, int z)
  865: {
  866:   static void *labels[]={&&label1, &&label2};
  867:   if (x) {
  868:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
  869:   label1:
  870:     asm("$i"); /* or ".space 16" or somesuch */
  871:   label2: ;
  872:   }
  873:   {
  874:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
  875:   return labels[1]-labels[0];
  876:   }
  877: }]
  878: 	,skipcode=$i; break
  879: 	,,)
  880:     done
  881:     CFLAGS=$CFLAGS_1
  882: fi
  883: AC_MSG_RESULT($skipcode)
  884: if test "$skipcode" = no
  885: then 
  886:     if test -z $no_dynamic_default; then
  887: 	no_dynamic_default=1
  888: 	AC_MSG_WARN(Disabling default dynamic native code generation)
  889:     fi
  890:     AC_DEFINE_UNQUOTED(SKIP16,asm(""),statement for skipping 16 bytes)
  891: else
  892:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
  893: fi
  894: 
  895: AC_MSG_CHECKING([if and how we can do comments in asm statements])
  896: #the point here is to get asm statements that look different to
  897: #gcc's "optimizer"
  898: if test -z "$asmcomment"; then
  899:     asmcomment=no
  900:     CFLAGS_1="$CFLAGS"
  901:     CFLAGS="$CFLAGS $ENGINE_FLAGS"
  902:     for i in '"# "' '"! "' '"; "'; do
  903: 	AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,)
  904:     done
  905:     CFLAGS=$CFLAGS_1
  906: fi
  907: AC_MSG_RESULT($asmcomment)
  908: if test "$asmcomment" != no
  909: then 
  910:     AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string])
  911: fi
  912: 
  913: test "$no_dynamic_default" || no_dynamic_default=0
  914: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
  915: 
  916: dnl Checks for programs.
  917: AC_PROG_LN_S
  918: AC_PROG_INSTALL
  919: AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi)
  920: 
  921: dnl check for the presence of Emacs
  922: AC_CHECK_PROGS(EMACS,emacs xemacs)
  923: test -n "$EMACS" && gforth_elc=gforth.elc
  924: AC_SUBST(gforth_elc)
  925: 
  926: dnl MacOS X has a libtool that does something else
  927: AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool)
  928: 
  929: dnl Checks for library functions
  930: dnl This check is just for making later checks link with libm.
  931: dnl using sin here is no good idea since it is built-into gcc and typechecked
  932: AC_CHECK_LIB(m,asin)
  933: AC_CHECK_LIB(ltdl,lt_dlinit)
  934: dnl ,LIB_SUFFIX=.la,LIB_SUFFIX=.so)
  935: if test "x$ac_cv_lib_ltdl_lt_dlinit" = xyes; then
  936:   LIB_SUFFIX=.la
  937: else
  938:   LIB_SUFFIX=.so
  939: fi
  940: AC_SUBST(LIB_SUFFIX)
  941: AC_CHECK_LIB(rt,clock_gettime)
  942: 
  943: if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then
  944:   build_libcc_named=build-libcc-named
  945: else
  946:   build_libcc_named=""
  947:   AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries])
  948: fi
  949: AC_SUBST(build_libcc_named)
  950: 
  951: 
  952: if test -z "$GNU_LIBTOOL"; then
  953:   AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.])
  954:   AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.])
  955:   GNU_LIBTOOL=libtool
  956: fi
  957: 
  958: #check for libffi 2.x
  959: AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,)
  960: if test -z "$FFI_H_NAME"; then
  961:   AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,)
  962: fi
  963: AC_SUBST(FFI_H_NAME)
  964: AC_CHECK_LIB(ffi,ffi_call,LIBS="$LIBS")
  965: if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes
  966: then
  967:   LIBFFIFLAG="true"
  968:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs"
  969: else
  970:   LIBFFIFLAG="false"
  971: fi
  972: #check for ffcall libraries
  973: #unfortunately, these four calls are separated out into a library each.
  974: AC_CHECK_LIB(avcall,__builtin_avcall,LIBS="$LIBS")
  975: dnl AC_CHECK_LIB(callback,__vacall_r)
  976: dnl AC_CHECK_LIB(vacall,vacall)
  977: dnl AC_CHECK_LIB(trampoline,alloc_trampoline)
  978: if test $ac_cv_lib_avcall___builtin_avcall = yes; then
  979:   FFCALLFLAG="true"
  980:   LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs"
  981: else
  982:   FFCALLFLAG="false"
  983: fi
  984: if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then
  985:   AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries])
  986: fi
  987: AC_SUBST(LIBFFIFLAG)
  988: AC_SUBST(FFCALLFLAG)
  989: AC_SUBST(LIBCC_BUILD_SRC)
  990: if test "$host_os" != "nextstep3"
  991: then
  992: 	AC_FUNC_MEMCMP
  993: fi
  994: AC_REPLACE_FUNCS(memmove strtoul pow10 sincos strerror strsignal atanh)
  995: AC_FUNC_FSEEKO
  996: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep clock_gettime)
  997: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
  998: AC_DECL_SYS_SIGLIST
  999: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
 1000: AC_CHECK_FUNCS(expm1 log1p)
 1001: AC_REPLACE_FUNCS(rint ecvt)
 1002: dnl No check for select, because our replacement is no good under
 1003: dnl anything but DOS
 1004: AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h endian.h)
 1005: AC_FUNC_FNMATCH
 1006: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
 1007: AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth)
 1008: AM_PATH_LISPDIR
 1009: 
 1010: kernel_fi=kernl${vwordsize}${bytesex}.fi
 1011: include_fi=kernl${wordsize}${bytesex}${EC}.fi
 1012: AC_SUBST(kernel_fi)
 1013: AC_SUBST(include_fi)
 1014: 
 1015: # Find installed Gforth
 1016: AC_MSG_CHECKING([for gforth])
 1017: GFORTH="`cd / && which gforth 2>/dev/null`"
 1018: #the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2
 1019: (cd / && $GFORTH -e bye >/dev/null 2>/dev/null  && test "$srcdir" = ".") || GFORTH=""
 1020: if test -z "$GFORTH"; then
 1021:   PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false'
 1022:   GFORTHKER='echo "You need to configure with a gforth in \$PATH to build this part" && false'
 1023:   kernel_anti_dependence=''
 1024: else
 1025:   GFORTH_FI=`cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`
 1026:   PREFORTH="$GFORTH -i $GFORTH_FI" ;
 1027:   KERNLX_FI1=`echo $GFORTH_FI | sed -e s/lib/share/g -e s/gforth.fi/kernl*.fi/g`
 1028:   KERNLX_FI2=`echo $GFORTH_FI | sed -e s/gforth.fi/kernl*.fi/g`
 1029:   test -f $KERNLX_FI1 && KERNLX_FI=$KERNLX_FI1
 1030:   test -f $KERNLX_FI2 && KERNLX_FI=$KERNLX_FI2
 1031:   GFORTHKER="$GFORTH -i `echo $KERNLX_FI`" ;
 1032:   kernel_anti_dependence='$(kernel_fi)'
 1033: fi
 1034: AC_SUBST(PREFORTH)
 1035: AC_SUBST(GFORTHKER)
 1036: AC_SUBST(kernel_anti_dependence)
 1037: AC_MSG_RESULT($PREFORTH)
 1038: 
 1039: #this breaks bindists
 1040: #dnl replace srource directory by absolute value
 1041: #if test $srcdir = "."; then srcdir=`pwd` 
 1042: #fi
 1043: 
 1044: AC_SUBST(machine)
 1045: AC_CONFIG_FILES([
 1046: Makefile
 1047: Makedist
 1048: gforthmi
 1049: vmgen
 1050: machpc.fs
 1051: envos.fs
 1052: preforth
 1053: libforth
 1054: gforthker
 1055: engine/Makefile
 1056: engine/libcc.h
 1057: doc/version.texi
 1058: build-ec ])
 1059: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
 1060: chmod +x gforthmi
 1061: chmod +x vmgen
 1062: chmod +x build-ec
 1063: chmod +x preforth
 1064: chmod +x libforth
 1065: chmod +x gforthker
 1066: test -d kernel||mkdir kernel
 1067: if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi
 1068: $srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION
 1069: $srcdir/mkinstalldirs arch/$machine
 1070: ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],
 1071: [PACKAGE_VERSION=$PACKAGE_VERSION
 1072:  machine=$machine])
 1073: AC_OUTPUT

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