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gforth-prof is built by default again
default CFLAGS is now "-O2" instead of "-g -O2"
added some static superinstructions
fixed computation of engine/costs.i
minor changes

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