File:  [gforth] / gforth / configure.in
Revision 1.138: download - view: text, annotated - select for diffs
Sat Apr 10 10:15:06 2004 UTC (15 years, 7 months ago) by anton
Branches: MAIN
CVS tags: HEAD
autoconf-2.50 compatibility fix (report and fix by Stefan Schmiedl)
  https://savannah.gnu.org/bugs/index.php?func=detailitem&item_id=8467

    1: dnl Process this file with autoconf to produce a configure script.
    2: 
    3: #Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc.
    4: 
    5: #This file is part of Gforth.
    6: 
    7: #Gforth is free software; you can redistribute it and/or
    8: #modify it under the terms of the GNU General Public License
    9: #as published by the Free Software Foundation; either version 2
   10: #of the License, or (at your option) any later version.
   11: 
   12: #This program is distributed in the hope that it will be useful,
   13: #but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the
   15: #GNU General Public License for more details.
   16: 
   17: #You should have received a copy of the GNU General Public License
   18: #along with this program; if not, write to the Free Software
   19: #Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   20: 
   21: 
   22: dnl We use some automake macros here,
   23: dnl but don't use automake for creating Makefile.in
   24: AC_INIT([gforth],[0.6.2-20030910],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth])
   25: AC_PREREQ(2.54)
   26: #snapshots have numbers major.minor.release-YYYYMMDD
   27: #note that lexicographic ordering must be heeded.
   28: #I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1!
   29: UPDATED="September 10, 2003"
   30: AC_SUBST(UPDATED)
   31: AC_CONFIG_HEADERS(engine/config.h)
   32: 
   33: #suppress the "-g -O2" default
   34: test "$CFLAGS" || CFLAGS=-O2
   35: 
   36: AC_ARG_ENABLE(force-reg,
   37: [  --enable-force-reg	  Use explicit register declarations if they appear in
   38: 			  the machine.h file. This can cause a good speedup,
   39: 			  but also incorrect code with some gcc versions on
   40: 			  some processors (default disabled).],
   41: AC_DEFINE(FORCE_REG,,[Define if you want to use explicit register declarations for better performance or for more convenient CODE words (does not work with all GCC versions on all machines)]))
   42: AC_SUBST(PROFEXES)
   43: AC_SUBST(PROFOBJS)
   44: AC_ARG_ENABLE(prof,
   45: [  --enable-prof          Build gforth-prof, which outputs frequently occuring
   46:                           sequences of primitives.],
   47: PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o")
   48: 
   49: AC_ARG_WITH(debug,
   50: [  --with-debug		  specifies option -g to compile with debug info
   51:   --without-debug	  omits the -g switch and creates smaller images on
   52: 			  machines where "strip" has problems with gcc style
   53: 			  debugging informations.],
   54: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
   55: 
   56: dnl PEEPHOLE="yes"
   57: dnl AC_ARG_WITH(peephole,
   58: dnl [  --with-peephole	Enable peephole optimization (default)
   59: dnl   --without-peephole	disables peephole optimization. Creates smaller,
   60: dnl 			but slower images.],
   61: dnl PEEPHOLE="$withval")
   62: 
   63: #variables mentioned in INSTALL
   64: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.])
   65: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
   66: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
   67: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
   68: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
   69: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
   70: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
   71: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
   72: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
   73: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
   74: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?])
   75: AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default])
   76: AC_ARG_VAR(skip_code, [assembly code for skipping 16 bytes of code])
   77: 
   78: #set up feature test macros, so the tests get them right:
   79: # turn on all POSIX, SUSv3, and GNU features if available
   80: AC_GNU_SOURCE
   81: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
   82: 
   83: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
   84: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
   85: dnl but not for _XOPEN_SOURCE)
   86: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
   87: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
   88: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
   89: # turn on large file support with 64-bit off_t where available
   90: AC_SYS_LARGEFILE
   91: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
   92: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
   93: 
   94: #currently we force direct threading this way.  Eventually we should
   95: #setup in the arch and engine files right
   96: 
   97: AC_PROG_CC
   98: 
   99: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
  100: 
  101: AC_SUBST(CC)
  102: AC_SUBST(DEBUGFLAG)
  103: 
  104: AC_MSG_CHECKING(make type)
  105: make_type=`make -v 2>&1|grep 'ake version'|sed 's/ version .*//'`
  106: 
  107: GNUMAKE='#'
  108: test "$make_type" = "GNU Make" && GNUMAKE=''
  109: 
  110: AC_MSG_RESULT($make_type)
  111: 
  112: AC_SUBST(GNUMAKE)
  113: 
  114: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
  115: OLDLDFLAGS=$LDFLAGS
  116: LDFLAGS="$LDFLAGS -export-dynamic"
  117: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
  118: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
  119: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
  120: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
  121: AC_MSG_RESULT($ac_export_dynamic)
  122: 
  123: #terminology is a bit unusual here: The host is the system on which
  124: #gforth will run; the system on which configure will run is the `build'
  125: AC_CANONICAL_HOST
  126: case "$host_cpu" in
  127: 	arm*)
  128: 		machine=arm
  129: 		CFLAGS="$CFLAGS -fomit-frame-pointer"
  130: 		if test -z $no_dynamic_default; then
  131: 		    no_dynamic_default=1
  132: 		    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
  133: 		fi
  134: 		;;
  135: 	hppa*)
  136: 		machine=hppa
  137: 		$srcdir/mkinstalldirs arch/hppa
  138: 		AC_LIBOBJ(../arch/hppa/cache)
  139: 		#-N needed for --dynamic <M4U3b.3790$9d.317@news.cpqcorp.net>
  140: 		LDFLAGS="$LDFLAGS -Xlinker -N"
  141: 		LIBS="$LIBS -L/lib/pa1.1/"
  142: 		;;
  143: 	sparc*)
  144: 		machine=sparc
  145: 		;;
  146: 	i386)
  147: 		machine=386
  148: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
  149: 		;;
  150: 	i486)
  151: 		machine=386
  152: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
  153: 		;;
  154: 	i*86)
  155: 		machine=386
  156: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
  157: 		CFLAGS_1="$CFLAGS"
  158: 		CFLAGS="$CFLAGS -march=pentium"
  159: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
  160: 		;;
  161: 	x86_64)
  162: 		machine=amd64
  163: 		;;
  164: 	ia64*)
  165: 		machine=ia64
  166: 		AC_LIBOBJ(../arch/ia64/flush_icache_block)
  167: 		test "$skipcode" || skipcode="nop.i 0"
  168: 		#".skip 16" passes the test below,
  169: 		# but gives an assembler error in engine
  170: 		;;
  171:         m68k)
  172: 		machine=m68k
  173: 		CFLAGS="$CFLAGS -fomit-frame-pointer"
  174: 		if test "$host_os" = "nextstep3"
  175: 		then
  176: 			AC_LIBOBJ(termios)
  177: 		fi
  178: 		;;
  179: 	mips*)
  180: 		machine=mips
  181: 		#dynamic native code has the following problems on MIPS:
  182: 		#
  183: 		#1) J/JAL seems relocatable, but is are only
  184: 		#relocatable within a 256MB-segment.  While we try to
  185: 		#get the linker to arrange this, there is no guarantee
  186: 		#that this will succeed (and if the user uses a lot of
  187: 		#memory, it is likely to fail).
  188: 		#
  189: 		#2) The way we generate dynamic native code may
  190: 		#violate MIPS architectural restrictions (in
  191: 		#particular, the delay slots of LW, MFLO, etc.)
  192: 		#
  193: 		#Therefore we disable dynamic native code by default:
  194: 		if test -z $no_dynamic_default; then
  195: 		    no_dynamic_default=1
  196: 		    AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)])
  197: 		fi
  198: 		;;
  199: 	alpha*)
  200: 		machine=alpha
  201: 		#full IEEE FP support for more uniformity across platforms:
  202: 		CFLAGS="$CFLAGS -mieee"
  203: 		;;
  204: 	power*|rs6000)
  205: 		machine=power
  206: 		$srcdir/mkinstalldirs arch/power
  207: 		AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)])
  208: 		#long long is broken on (at least) gcc-2.95.* for PPC
  209: 		test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
  210: 		;;
  211: 	*)
  212: 		AC_MSG_WARN([Using a generic machine description])
  213: 		AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
  214: 		AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
  215: 		machine=generic
  216: 		#I-cache flushing would be needed for dynamic code generation
  217: 		if test -z $no_dynamic_default; then
  218: 		    no_dynamic_default=1
  219: 		    AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation])
  220: 		fi
  221: esac
  222: AC_SUBST(host)
  223: 
  224: dnl the following macro produces a warning with autoconf-2.1
  225: AC_CHECK_SIZEOF(char *)
  226: case "$ac_cv_sizeof_char_p" in
  227:   2)
  228:     wordsize=16
  229:     ;;
  230:   4)
  231:     wordsize=32
  232:     ;;
  233:   8)
  234:     wordsize=64
  235:     ;;
  236: esac
  237: 
  238: AC_CHECK_SIZEOF(char)
  239: AC_CHECK_SIZEOF(short)
  240: AC_CHECK_SIZEOF(int)
  241: AC_CHECK_SIZEOF(long)
  242: AC_CHECK_SIZEOF(long long)
  243: AC_CHECK_SIZEOF(intptr_t)
  244: AC_CHECK_SIZEOF(int128_t)
  245: 
  246: AC_MSG_CHECKING([for a C type for cells])
  247: ac_cv_int_type_cell=none
  248: case "$ac_cv_sizeof_char_p" in
  249:   $ac_cv_sizeof_int)
  250:     ac_cv_int_type_cell=int
  251:     ;;
  252:   $ac_cv_sizeof_short)
  253:     ac_cv_int_type_cell=short
  254:     ;;
  255:   $ac_cv_sizeof_char)
  256:     ac_cv_int_type_cell=char
  257:     ;;
  258:   $ac_cv_sizeof_long)
  259:     ac_cv_int_type_cell=long
  260:     ;;
  261:   $ac_cv_sizeof_long_long)
  262:     ac_cv_int_type_cell="long long"
  263:     ;;
  264:   $ac_cv_sizeof_intptr_t)
  265:     ac_cv_int_type_cell="intptr_t"
  266:     ;;
  267:   $ac_cv_sizeof_int128_t)
  268:     ac_cv_int_type_cell="int128_t"
  269:     ;;
  270: esac
  271: AC_MSG_RESULT($ac_cv_int_type_cell)
  272: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
  273: 
  274: AC_MSG_CHECKING([for a C type for double-cells])
  275: ac_cv_int_type_double_cell=none
  276: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
  277:   $ac_cv_sizeof_short)
  278:     ac_cv_int_type_double_cell=short
  279:     ;;
  280:   $ac_cv_sizeof_int)
  281:     ac_cv_int_type_double_cell=int
  282:     ;;
  283:   $ac_cv_sizeof_long)
  284:     ac_cv_int_type_double_cell=long
  285:     ;;
  286:   $ac_cv_sizeof_long_long)
  287:     ac_cv_int_type_double_cell="long long"
  288:     ;;
  289:   $ac_cv_sizeof_intptr_t)
  290:     ac_cv_int_type_double_cell="intptr_t"
  291:     ;;
  292:   $ac_cv_sizeof_int128_t)
  293:     ac_cv_int_type_double_cell="int128_t"
  294:     ;;
  295: esac
  296: AC_MSG_RESULT($ac_cv_int_type_double_cell)
  297: if test "$ac_cv_int_type_double_cell" = none; then
  298: 	AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
  299: 	AC_LIBOBJ(dblsub)
  300: 	AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
  301: else
  302: 	AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
  303: fi
  304: 
  305: AC_TYPE_OFF_T
  306: AC_CHECK_SIZEOF(off_t)
  307: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
  308: ac_small_off_t=$?
  309: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
  310: 
  311: ENGINE_FLAGS=
  312: AC_SUBST(ENGINE_FLAGS)
  313: 
  314: # Try if GCC understands -fno-gcse
  315: 
  316: AC_MSG_CHECKING([if $CC understands -fno-gcse])
  317: CFLAGS_1="$CFLAGS"
  318: CFLAGS="$CFLAGS -fno-gcse"
  319: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
  320: CFLAGS="$CFLAGS_1"
  321: AC_MSG_RESULT($ac_nogcse)
  322: 
  323: # Try if GCC understands -fno-strict-aliasing
  324: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
  325: CFLAGS_1="$CFLAGS"
  326: CFLAGS="$CFLAGS -fno-strict-aliasing"
  327: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
  328: CFLAGS="$CFLAGS_1"
  329: AC_MSG_RESULT($ac_nostrictaliasing)
  330: 
  331: # Try if GCC understands -fno-crossjumping
  332: AC_MSG_CHECKING([if $CC understands -fno-crossjumping])
  333: CFLAGS_1="$CFLAGS"
  334: CFLAGS="$CFLAGS -fno-crossjumping"
  335: AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no)
  336: CFLAGS="$CFLAGS_1"
  337: AC_MSG_RESULT($ac_nocrossjumping)
  338: 
  339: # Try if GCC understands -fno-reorder-blocks
  340: AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks])
  341: CFLAGS_1="$CFLAGS"
  342: CFLAGS="$CFLAGS -fno-reorder-blocks"
  343: AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no)
  344: CFLAGS="$CFLAGS_1"
  345: AC_MSG_RESULT($ac_noreorder_blocks)
  346: 
  347: # Try if GCC understands __attribute__((unused))
  348: AC_MSG_CHECKING([how to suppress 'unused variable' warnings])
  349: AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',)
  350: AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables])
  351: AC_MSG_RESULT($MAYBE_UNUSED)
  352: 
  353: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
  354: AC_SUBST(asm_fs)
  355: 
  356: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
  357: AC_SUBST(disasm_fs)
  358: 
  359: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
  360: 
  361: case "$host_os" in
  362: 	*win32|cygwin)
  363: 		DIRSEP="\\\\"
  364: 		PATHSEP=";"
  365: 		;;
  366: 	*darwin*)
  367: 		#Darwin uses some funny preprocessor by default; eliminate it:
  368: 		AC_MSG_NOTICE([using -no-cpp-precomp on Darwin])
  369: 		CFLAGS="$CFLAGS -no-cpp-precomp"
  370: 		DIRSEP="/"
  371: 		PATHSEP=":"
  372: 		;;
  373: 	*)
  374: 		DIRSEP="/"
  375: 		PATHSEP=":"
  376: 		;;
  377: esac
  378: AC_SUBST(DIRSEP)
  379: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
  380: AC_SUBST(PATHSEP)
  381: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
  382: 
  383: 
  384: dnl Now a little support for DOS/DJGCC
  385: AC_SUBST(GFORTH_EXE)
  386: GFORTH_EXE=""
  387: AC_SUBST(GFORTHFAST_EXE)
  388: GFORTHFAST_EXE=""
  389: AC_SUBST(GFORTHITC_EXE)
  390: GFORTHITC_EXE=""
  391: AC_SUBST(GFORTHDITC_EXE)
  392: GFORTHDITC_EXE=""
  393: 
  394: AC_SUBST(FORTHSIZES)
  395: 
  396: dnl if test "$PEEPHOLE" = "yes"
  397: dnl then
  398: dnl    PEEPHOLEFLAG="true"
  399: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
  400: dnl else
  401: dnl    PEEPHOLEFLAG="false"
  402: dnl fi
  403: PEEPHOLEFLAG="true"
  404: AC_SUBST(PEEPHOLEFLAG)
  405: 
  406: dnl copy commands for systems that don't have links
  407: AC_SUBST(LINK_KERNL)
  408: LINK_KERNL=""
  409: 
  410: #if test $host_os=dos
  411: #then
  412: #  echo Configuring for DOS!!!
  413: #  MAKE_EXE="coff2exe gforth"
  414: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
  415: #fi
  416: 
  417: dnl the following macro produces a warning with autoconf-2.1
  418: AC_C_BIGENDIAN
  419: AC_SUBST(KERNEL)
  420: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
  421: if test $ac_cv_c_bigendian = yes; then
  422:   bytesex=b
  423:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
  424: else
  425:   bytesex=l
  426:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
  427: fi
  428: 
  429: #check how to do asm(".skip 16")
  430: AC_MSG_CHECKING([if and how we can waste code space])
  431: if test -z "$skipcode"; then
  432:     for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
  433:     do
  434: 	AC_TRY_RUN(
  435: [int foo(int,int,int);
  436: main()
  437: {
  438:   exit(foo(0,0,0)!=16);
  439: }
  440: int foo(int x, int y, int z)
  441: {
  442:   static void *labels[]={&&label1, &&label2};
  443:   if (x) {
  444:     y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */
  445:   label1:
  446:     asm(".skip 16"); /* or ".space 16" or somesuch */
  447:   label2: ;
  448:   }
  449:   {
  450:   if (y) goto *labels[z]; /* workaround for gcc PR12108 */
  451:   return labels[1]-labels[0];
  452:   }
  453: }]
  454: 	,skipcode=$i; break
  455: 	,,)
  456:     done
  457: fi
  458: AC_MSG_RESULT($skipcode)
  459: if test "$skipcode" = no
  460: then 
  461:     if test -z $no_dynamic_default; then
  462: 	no_dynamic_default=1
  463: 	AC_MSG_WARN(Disabling default dynamic native code generation)
  464:     fi
  465:     AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
  466: else
  467:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
  468: fi
  469: 
  470: test "$no_dynamic_default" || no_dynamic_default=0
  471: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
  472: 
  473: dnl Checks for programs.
  474: AC_PROG_LN_S
  475: AC_PROG_INSTALL
  476: 
  477: dnl Checks for library functions
  478: dnl This check is just for making later checks link with libm.
  479: dnl using sin here is no good idea since it is built-into gcc and typechecked
  480: AC_CHECK_LIB(m,asin)
  481: AC_CHECK_LIB(dl,dlopen)
  482: dnl check for ffcall libraries
  483: dnl unfortunately, these four calls are separated out into a library each.
  484: AC_CHECK_LIB(avcall,__builtin_avcall)
  485: AC_CHECK_LIB(callback,__vacall_r)
  486: AC_CHECK_LIB(vacall,vacall)
  487: AC_CHECK_LIB(trampoline,alloc_trampoline)
  488: FFCALLFLAG="false"
  489: OLDCALLFLAG="true"
  490: test $ac_cv_lib_avcall___builtin_avcall = yes && FFCALLFLAG="true" && OLDCALLFLAG="false" && AC_DEFINE(HAS_FFCALL,,[define this if you want to use the ffcall libraries])
  491: test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries])
  492: AC_SUBST(FFCALLFLAG)
  493: AC_SUBST(OLDCALLFLAG)
  494: if test "$host_os" != "nextstep3"
  495: then
  496: 	AC_FUNC_MEMCMP
  497: fi
  498: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
  499: AC_FUNC_FSEEKO
  500: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
  501: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
  502: AC_DECL_SYS_SIGLIST
  503: AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)])
  504: AC_CHECK_FUNCS(expm1 log1p)
  505: AC_REPLACE_FUNCS(rint ecvt)
  506: dnl No check for select, because our replacement is no good under
  507: dnl anything but DOS
  508: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
  509: AC_FUNC_FNMATCH
  510: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
  511: AC_CHECK_FUNCS(mmap sysconf getpagesize)
  512: AM_PATH_LISPDIR
  513: 
  514: kernel_fi=kernl${wordsize}${bytesex}.fi
  515: AC_SUBST(kernel_fi)
  516: 
  517: #this breaks bindists
  518: #dnl replace srource directory by absolute value
  519: #if test $srcdir = "."; then srcdir=`pwd` 
  520: #fi
  521: 
  522: AC_SUBST(machine)
  523: AC_CONFIG_FILES([
  524: Makefile
  525: Makedist
  526: gforthmi
  527: vmgen
  528: machpc.fs
  529: engine/Makefile
  530: doc/version.texi ])
  531: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
  532: chmod +x gforthmi
  533: chmod +x vmgen
  534: test -d kernel||mkdir kernel]],[[]])
  535: AC_OUTPUT
  536: 

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