File:  [gforth] / gforth / configure.in
Revision 1.122: download - view: text, annotated - select for diffs
Fri Jul 18 15:12:26 2003 UTC (16 years, 4 months ago) by pazsan
Branches: MAIN
CVS tags: HEAD
Reinstantiated --with[out]-dynamic

    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],[0.6.1],[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="March 11, 2003"
   30: AC_SUBST(UPDATED)
   31: AC_CONFIG_HEADERS(engine/config.h)
   32: 
   33: #suppress the "-g -O2" default
   34: test "$CFLAGS" || CFLAGS=-O2
   35: 
   36: #default setting that may be changed later:
   37: no_dynamic_default=0
   38: 
   39: AC_ARG_ENABLE(force-reg,
   40: [  --enable-force-reg	  Use explicit register declarations if they appear in
   41: 			  the machine.h file. This can cause a good speedup,
   42: 			  but also incorrect code with some gcc versions on
   43: 			  some processors (default disabled).],
   44: AC_DEFINE(FORCE_REG,,[Define if you want to use explicit register declarations for better performance or for more convenient CODE words (does not work with all GCC versions on all machines)]))
   45: 
   46: AC_ARG_WITH(debug,
   47: [  --with-debug		  specifies option -g to compile with debug info
   48:   --without-debug	  omits the -g switch and creates smaller images on
   49: 			  machines where "strip" has problems with gcc style
   50: 			  debugging informations.],
   51: if test "$withval" = "yes"; then DEBUGFLAG=-g; fi)
   52: 
   53: AC_ARG_WITH(dynamic,
   54: [  --with-dynamic	  Gforth defaults to dynamic super instructions,
   55:   --without-dynamic	  this may cause problems with newer GCCs and global
   56: 			  CSE, so if you see troubles, turn it off.],
   57: if test "$withval" = "no"; then no_dynamic_default=1; fi)
   58: 
   59: dnl PEEPHOLE="yes"
   60: dnl AC_ARG_WITH(peephole,
   61: dnl [  --with-peephole	Enable peephole optimization (default)
   62: dnl   --without-peephole	disables peephole optimization. Creates smaller,
   63: dnl 			but slower images.],
   64: dnl PEEPHOLE="$withval")
   65: 
   66: #variables mentioned in INSTALL
   67: AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).])
   68: AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).])
   69: AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)])
   70: AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)])
   71: AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)])
   72: AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)])
   73: AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)])
   74: AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)])
   75: AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)])
   76: AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)])
   77: AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no)?])
   78: 
   79: #set up feature test macros, so the tests get them right:
   80: # turn on all POSIX, SUSv3, and GNU features if available
   81: AC_GNU_SOURCE
   82: dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro])
   83: 
   84: dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular
   85: dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE,
   86: dnl but not for _XOPEN_SOURCE)
   87: dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro])
   88: dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro])
   89: dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro])
   90: # turn on large file support with 64-bit off_t where available
   91: AC_SYS_LARGEFILE
   92: dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro])
   93: dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro])
   94: 
   95: #currently we force direct threading this way.  Eventually we should
   96: #setup in the arch and engine files right
   97: 
   98: AC_PROG_CC
   99: 
  100: test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher)
  101: 
  102: AC_SUBST(CC)
  103: AC_SUBST(DEBUGFLAG)
  104: 
  105: dnl gcc-3.2 seems to work fine now
  106: dnl AC_MSG_CHECKING(gcc version)
  107: dnl gcc_version=`$CC -v 2>&1|grep 'gcc version'|sed 's/.*gcc version //'`
  108: dnl AC_MSG_RESULT($gcc_version)
  109: dnl if expr "$gcc_version" \> 3.0.4 >/dev/null && expr "$gcc_version" \< 3.2.1 >/dev/null
  110: dnl then
  111: dnl    no_dynamic_default=1
  112: dnl    AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
  113: dnl fi
  114: 
  115: AC_MSG_CHECKING([whether the linker accepts -export-dynamic])
  116: OLDLDFLAGS=$LDFLAGS
  117: LDFLAGS="$LDFLAGS -export-dynamic"
  118: dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0
  119: dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no)
  120: AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no)
  121: test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS
  122: AC_MSG_RESULT($ac_export_dynamic)
  123: 
  124: #terminology is a bit unusual here: The host is the system on which
  125: #gforth will run; the system on which configure will run is the `build'
  126: AC_CANONICAL_HOST
  127: case "$host_cpu" in
  128: 	hppa*)
  129: 		machine=hppa
  130: 		$srcdir/mkinstalldirs arch/hppa
  131: 		AC_LIBOBJ(../arch/hppa/cache)
  132: 		#LDFLAGS="$LDFLAGS -Xlinker -N"
  133: 		LIBS="$LIBS -L/lib/pa1.1/"
  134: 		;;
  135: 	sparc*)
  136: 		machine=sparc
  137: 		;;
  138: 	i386)
  139: 		machine=386
  140: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
  141: 		;;
  142: 	i486)
  143: 		machine=386
  144: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486"
  145: 		;;
  146: 	i*86)
  147: 		machine=386
  148: 		CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem"
  149: 		CFLAGS_1="$CFLAGS"
  150: 		CFLAGS="$CFLAGS -march=pentium"
  151: 		AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486")
  152: 		;;
  153: #generic should work for IA64
  154: #	ia64*)
  155: #		machine=ia64
  156: #		;;
  157:         m68k)
  158: 		machine=m68k
  159: 		CFLAGS="$CFLAGS -fomit-frame-pointer"
  160: 		if test "$host_os" = "nextstep3"
  161: 		then
  162: 			AC_LIBOBJ(termios)
  163: 		fi
  164: 		;;
  165: 	mips*)
  166: 		machine=mips
  167: 		#dynamic native code has the following problems on MIPS:
  168: 		#
  169: 		#1) J/JAL seems relocatable, but is are only
  170: 		#relocatable within a 256MB-segment.  While we try to
  171: 		#get the linker to arrange this, there is no guarantee
  172: 		#that this will succeed (and if the user uses a lot of
  173: 		#memory, it is likely to fail).
  174: 		#
  175: 		#2) The way we generate dynamic native code may
  176: 		#violate MIPS architectural restrictions (in
  177: 		#particular, the delay slots of LW, MFLO, etc.)
  178: 		#
  179: 		#Therefore we disable dynamic native code by default:
  180: 		no_dynamic_default=1
  181: 		AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
  182: 		;;
  183: 	alpha*)
  184: 		machine=alpha
  185: 		#full IEEE FP support for more uniformity across platforms:
  186: 		CFLAGS="$CFLAGS -mieee"
  187: 		;;
  188: 	power*|rs6000)
  189: 		machine=power
  190: 		$srcdir/mkinstalldirs arch/power
  191: 		AC_CHECK_FUNC(_sync_cache_range,true,AC_LIBOBJ(../arch/power/_sync_cache_range))
  192: 		#long long is broken on (at least) gcc-2.95.* for PPC
  193: 		test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0
  194: 		;;
  195: 	*)
  196: 		AC_MSG_WARN([Using a generic machine description])
  197: 		AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)])
  198: 		AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!])
  199: 		machine=generic
  200: 		#I-cache flushing would be needed for dynamic code generation
  201: 		no_dynamic_default=1
  202: 		AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
  203: esac
  204: AC_SUBST(host)
  205: 
  206: dnl the following macro produces a warning with autoconf-2.1
  207: AC_CHECK_SIZEOF(char *)
  208: case "$ac_cv_sizeof_char_p" in
  209:   2)
  210:     wordsize=16
  211:     ;;
  212:   4)
  213:     wordsize=32
  214:     ;;
  215:   8)
  216:     wordsize=64
  217:     ;;
  218: esac
  219: 
  220: AC_CHECK_SIZEOF(char)
  221: AC_CHECK_SIZEOF(short)
  222: AC_CHECK_SIZEOF(int)
  223: AC_CHECK_SIZEOF(long)
  224: AC_CHECK_SIZEOF(long long)
  225: AC_CHECK_SIZEOF(intptr_t)
  226: AC_CHECK_SIZEOF(int128_t)
  227: 
  228: AC_MSG_CHECKING([for a C type for cells])
  229: ac_cv_int_type_cell=none
  230: case "$ac_cv_sizeof_char_p" in
  231:   $ac_cv_sizeof_int)
  232:     ac_cv_int_type_cell=int
  233:     ;;
  234:   $ac_cv_sizeof_short)
  235:     ac_cv_int_type_cell=short
  236:     ;;
  237:   $ac_cv_sizeof_char)
  238:     ac_cv_int_type_cell=char
  239:     ;;
  240:   $ac_cv_sizeof_long)
  241:     ac_cv_int_type_cell=long
  242:     ;;
  243:   $ac_cv_sizeof_long_long)
  244:     ac_cv_int_type_cell="long long"
  245:     ;;
  246:   $ac_cv_sizeof_intptr_t)
  247:     ac_cv_int_type_cell="intptr_t"
  248:     ;;
  249:   $ac_cv_sizeof_int128_t)
  250:     ac_cv_int_type_cell="int128_t"
  251:     ;;
  252: esac
  253: AC_MSG_RESULT($ac_cv_int_type_cell)
  254: AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer])
  255: 
  256: AC_MSG_CHECKING([for a C type for double-cells])
  257: ac_cv_int_type_double_cell=none
  258: case `expr 2 '*' "$ac_cv_sizeof_char_p"` in
  259:   $ac_cv_sizeof_short)
  260:     ac_cv_int_type_double_cell=short
  261:     ;;
  262:   $ac_cv_sizeof_int)
  263:     ac_cv_int_type_double_cell=int
  264:     ;;
  265:   $ac_cv_sizeof_long)
  266:     ac_cv_int_type_double_cell=long
  267:     ;;
  268:   $ac_cv_sizeof_long_long)
  269:     ac_cv_int_type_double_cell="long long"
  270:     ;;
  271:   $ac_cv_sizeof_intptr_t)
  272:     ac_cv_int_type_double_cell="intptr_t"
  273:     ;;
  274:   $ac_cv_sizeof_int128_t)
  275:     ac_cv_int_type_double_cell="int128_t"
  276:     ;;
  277: esac
  278: AC_MSG_RESULT($ac_cv_int_type_double_cell)
  279: if test "$ac_cv_int_type_double_cell" = none; then
  280: 	AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.])
  281: 	AC_LIBOBJ(dblsub)
  282: 	AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine])
  283: else
  284: 	AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer])
  285: fi
  286: 
  287: AC_TYPE_OFF_T
  288: AC_CHECK_SIZEOF(off_t)
  289: test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p
  290: ac_small_off_t=$?
  291: AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell])
  292: 
  293: ENGINE_FLAGS=
  294: AC_SUBST(ENGINE_FLAGS)
  295: 
  296: # Try if GCC understands -fno-gcse
  297: 
  298: AC_MSG_CHECKING([if $CC understands -fno-gcse])
  299: CFLAGS_1="$CFLAGS"
  300: CFLAGS="$CFLAGS -fno-gcse"
  301: AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no)
  302: CFLAGS="$CFLAGS_1"
  303: AC_MSG_RESULT($ac_nogcse)
  304: 
  305: # Try if GCC understands -fno-strict-aliasing
  306: AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing])
  307: CFLAGS_1="$CFLAGS"
  308: CFLAGS="$CFLAGS -fno-strict-aliasing"
  309: AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no)
  310: CFLAGS="$CFLAGS_1"
  311: AC_MSG_RESULT($ac_nostrictaliasing)
  312: 
  313: # Try if GCC understands -fno-cross-jump
  314: AC_MSG_CHECKING([if $CC understands -fno-cross-jump])
  315: CFLAGS_1="$CFLAGS"
  316: CFLAGS="$CFLAGS -fno-cross-jump"
  317: AC_TRY_COMPILE(,,ac_nocrossjump=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-cross-jump",ac_nocrossjump=no)
  318: CFLAGS="$CFLAGS_1"
  319: AC_MSG_RESULT($ac_nocrossjump)
  320: 
  321: AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine)
  322: AC_SUBST(asm_fs)
  323: 
  324: AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine)
  325: AC_SUBST(disasm_fs)
  326: 
  327: AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin)
  328: 
  329: case "$host_os" in
  330: 	*win32|cygwin)
  331: 		DIRSEP="\\\\"
  332: 		;;
  333: 	*darwin*)
  334: 		#Darwin uses some funny preprocessor by default; eliminate it:
  335: 		AC_MSG_NOTICE([using -traditional-cpp on Darwin])
  336: 		CFLAGS="$CFLAGS -no-cpp-precomp"
  337: 		DIRSEP="/"
  338: 		;;
  339: 	*)
  340: 		DIRSEP="/"
  341: 		;;
  342: esac
  343: AC_SUBST(DIRSEP)
  344: AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character])
  345: 
  346: dnl Now a little support for DOS/DJGCC
  347: AC_SUBST(GFORTH_EXE)
  348: GFORTH_EXE=""
  349: AC_SUBST(GFORTHFAST_EXE)
  350: GFORTHFAST_EXE=""
  351: AC_SUBST(GFORTHITC_EXE)
  352: GFORTHITC_EXE=""
  353: AC_SUBST(GFORTHDITC_EXE)
  354: GFORTHDITC_EXE=""
  355: 
  356: PATHSEP=":"
  357: AC_SUBST(PATHSEP)
  358: AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character])
  359: 
  360: AC_SUBST(FORTHSIZES)
  361: 
  362: dnl if test "$PEEPHOLE" = "yes"
  363: dnl then
  364: dnl    PEEPHOLEFLAG="true"
  365: dnl    AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization])
  366: dnl else
  367: dnl    PEEPHOLEFLAG="false"
  368: dnl fi
  369: PEEPHOLEFLAG="true"
  370: AC_SUBST(PEEPHOLEFLAG)
  371: 
  372: dnl copy commands for systems that don't have links
  373: AC_SUBST(LINK_KERNL)
  374: LINK_KERNL=""
  375: 
  376: #if test $host_os=dos
  377: #then
  378: #  echo Configuring for DOS!!!
  379: #  MAKE_EXE="coff2exe gforth"
  380: #  LINK_KERNL='$(CP) kernl32l.fi kernel.fi'
  381: #fi
  382: 
  383: dnl the following macro produces a warning with autoconf-2.1
  384: AC_C_BIGENDIAN
  385: AC_SUBST(KERNEL)
  386: dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1
  387: if test $ac_cv_c_bigendian = yes; then
  388:   bytesex=b
  389:   KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi"
  390: else
  391:   bytesex=l
  392:   KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi"
  393: fi
  394: 
  395: #check how to do asm(".skip 16")
  396: AC_MSG_CHECKING([if and how we can waste code space])
  397: skipcode=no
  398: for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16"
  399: do
  400: 	AC_TRY_RUN(
  401: int foo(int);
  402: main()
  403: {
  404:   exit(foo(0)!=16);
  405: }
  406: int foo(int x)
  407: {
  408:   if (x) {
  409:   label1:
  410:     asm("$i");
  411:   label2:
  412:   }
  413:   return (&&label2)-(&&label1);
  414: }
  415: 	,skipcode=$i; break
  416: 	,,)
  417: done	
  418: AC_MSG_RESULT($skipcode)
  419: if test "$skipcode" = no
  420: then 
  421:     no_dynamic_default=1
  422:     AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes)
  423:     AC_MSG_WARN(Disabling dynamic native code generation by default (speed penalty factor ~2))
  424: else
  425:     AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes)
  426: fi
  427: 
  428: AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic)
  429: 
  430: dnl Checks for programs.
  431: AC_PROG_LN_S
  432: AC_PROG_INSTALL
  433: 
  434: dnl Checks for library functions
  435: dnl This check is just for making later checks link with libm.
  436: dnl using sin here is no good idea since it is built-into gcc and typechecked
  437: AC_CHECK_LIB(m,asin)
  438: AC_CHECK_LIB(dl,dlopen)
  439: if test "$host_os" != "nextstep3"
  440: then
  441: 	AC_FUNC_MEMCMP
  442: fi
  443: AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh)
  444: AC_FUNC_FSEEKO
  445: AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage)
  446: AC_CHECK_TYPES(stack_t,,,[#include <signal.h>])
  447: AC_DECL_SYS_SIGLIST
  448: AC_CHECK_FUNC(getopt_long,true,AC_LIBOBJ(getopt); AC_LIBOBJ(getopt1))
  449: AC_CHECK_FUNCS(expm1 log1p)
  450: AC_REPLACE_FUNCS(rint ecvt)
  451: dnl No check for select, because our replacement is no good under
  452: dnl anything but DOS
  453: AC_CHECK_HEADERS(sys/mman.h fnmatch.h)
  454: AC_FUNC_FNMATCH
  455: test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch)
  456: AC_CHECK_FUNCS(mmap sysconf getpagesize)
  457: AM_PATH_LISPDIR
  458: 
  459: kernel_fi=kernl${wordsize}${bytesex}.fi
  460: AC_SUBST(kernel_fi)
  461: 
  462: #this breaks bindists
  463: #dnl replace srource directory by absolute value
  464: #if test $srcdir = "."; then srcdir=`pwd` 
  465: #fi
  466: 
  467: AC_SUBST(machine)
  468: AC_CONFIG_FILES([
  469: Makefile
  470: Makedist
  471: gforthmi
  472: vmgen
  473: machpc.fs
  474: engine/Makefile
  475: doc/version.texi ])
  476: AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h
  477: chmod +x gforthmi
  478: chmod +x vmgen
  479: test -d kernel||mkdir kernel]],[[]])
  480: AC_OUTPUT
  481: 

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