--- gforth/configure.in 1995/12/23 16:21:55 1.17 +++ gforth/configure.in 2007/02/17 16:23:06 1.172 @@ -1,171 +1,721 @@ dnl Process this file with autoconf to produce a configure script. -AC_INIT(engine.c) + +#Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006 Free Software Foundation, Inc. + +#This file is part of Gforth. + +#Gforth is free software; you can redistribute it and/or +#modify it under the terms of the GNU General Public License +#as published by the Free Software Foundation; either version 2 +#of the License, or (at your option) any later version. + +#This program is distributed in the hope that it will be useful, +#but WITHOUT ANY WARRANTY; without even the implied warranty of +#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.#See the +#GNU General Public License for more details. + +#You should have received a copy of the GNU General Public License +#along with this program; if not, write to the Free Software +#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. + + +dnl We use some automake macros here, +dnl but don't use automake for creating Makefile.in +AC_INIT([gforth],[0.6.2-20060527],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth]) +AC_PREREQ(2.54) +#snapshots have numbers major.minor.release-YYYYMMDD +#note that lexicographic ordering must be heeded. +#I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1! +UPDATED="April 09, 2006" +AC_SUBST(UPDATED) +AC_CONFIG_HEADERS(engine/config.h) + +#suppress the "-g -O2" default +test "$CFLAGS" || CFLAGS=-O2 AC_ARG_ENABLE(force-reg, -[ --enable-force-reg Use explicit register declarations if they appear in + AC_HELP_STRING([--enable-force-reg], + [ Use explicit register declarations if they appear in the machine.h file. This can cause a good speedup, but also incorrect code with some gcc versions on - some processors (default disabled).], - -AC_DEFINE(FORCE_REG)) -dnl this is not quite according to the autoconf manual, it causes a replacement -AC_ARG_ENABLE(direct-threaded, -[ --enable-direct-threaded Force direct threading. This may not work on - some machines and may cause slowdown on others. - (default processor-dependent)], -AC_DEFINE(DIRECT_THREADED)) -AC_ARG_ENABLE(indirect-threaded, -[ --enable-indirect-threaded Force indirect threading. This can cause a - slowdown on some machines. - (default processor-dependent)], -AC_DEFINE(INDIRECT_THREADED)) + some processors (default disabled).]), + ,enable_force_reg=no) +test "$enable_force_reg" = "no"|| + 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)]) + +AC_ARG_ENABLE(force-ll, + AC_HELP_STRING([--enable-force-ll], + [ Use explicit long long declarations if they appear in + the machine.h file. This can cause a good speedup, + but also incorrect code with some gcc versions on + some processors (default disabled).]), + ,enable_force_ll=no) +test "$enable_force_ll" = "no"|| + AC_DEFINE(FORCE_LL,,[Define if you want to use explicit long long declarations for better performance (does not work with all GCC versions on all machines)]) + +AC_ARG_ENABLE(gcc-pr15242-workaround, + AC_HELP_STRING([--disable-gcc-pr15242-workaround],[Disables + dynamic code generation on some versions of gcc + (slowdown~2 on Athlon) and causes slower building + of gforth (but gforth speedups) on others. + (default enabled)]), + ,enable_gcc_pr15242_workaround=yes) +test "$enable_gcc_pr15242_workaround" = "no"|| +AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code +generation on gccs affected by PR15242]) + +AC_ARG_ENABLE(force-cdiv, + AC_HELP_STRING([--enable-force-cdiv], + [ Use the native C division - symmetric - instead of + floored division (default disabled).]), + ,enable_force_cdiv=no) +test "$enable_force_cdiv" = "no"|| + AC_DEFINE(FORCE_CDIV,,[Define if you want to use explicit symmetric division for better performance]) + +AC_SUBST(PROFEXES) +AC_SUBST(PROFOBJS) +AC_ARG_ENABLE(prof, + AC_HELP_STRING([--enable-prof], + [ Build gforth-prof, which outputs frequently occuring + sequences of primitives.]), + ,enable_prof=no) +if test "$enable_prof" = "no"; then + PROFEXES="gforth-prof\$(EXE)"; PROFOBJS="engine-prof.o main-prof.o profile.o" +fi AC_ARG_WITH(debug, -[ --with-debug specifies option -g to compile with debug info (default) - --without-debug omits the -g switch and creates smaller images on - machines where "strip" has problems with gcc style - debugging informations.], +[ --with-debug specifies option -g to compile with debug info + --without-debug omits the -g switch and creates smaller images on + machines where "strip" has problems with gcc style + debugging informations.], if test "$withval" = "yes"; then DEBUGFLAG=-g; fi) -CFLAGS=$CFLAGS +dnl PEEPHOLE="yes" +dnl AC_ARG_WITH(peephole, +dnl [ --with-peephole Enable peephole optimization (default) +dnl --without-peephole disables peephole optimization. Creates smaller, +dnl but slower images.], +dnl PEEPHOLE="$withval") + +AC_ARG_ENABLE(ec, + AC_HELP_STRING([--enable-ec], + [ Build gforth for systems without OS.]), + ,enable_ec=no) +if test "$enable_ec" = "yes"; then + echo "defining standalone system" + AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS]) + EC_MODE="true" +else + echo "defining hosted system" + EC_MODE="false" +fi + +#variables mentioned in INSTALL +AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x); gcc-2.95 recommended.]) +AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).]) +AC_ARG_VAR(STACK_CACHE_DEFAULT_FAST, [number of registers in the default stack cache state for gforth-fast and gforth-native (default 1).]) +AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)]) +AC_ARG_VAR(ac_cv_sizeof_char, [sizeof(char)]) +AC_ARG_VAR(ac_cv_sizeof_short, [sizeof(short)]) +AC_ARG_VAR(ac_cv_sizeof_int, [sizeof(int)]) +AC_ARG_VAR(ac_cv_sizeof_long, [sizeof(long)]) +AC_ARG_VAR(ac_cv_sizeof_long_long, [sizeof(long long)]) +AC_ARG_VAR(ac_cv_sizeof_intptr_t, [sizeof(intptr_t)]) +AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeof(int128_t)]) +AC_ARG_VAR(ac_cv_sizeof_uint128_t, [sizeof(uint128_t)]) +AC_ARG_VAR(ac_cv_c_bigendian, [Is the target big-endian ("yes" or "no")?]) +AC_ARG_VAR(no_dynamic_default, [run gforth with --dynamic (0) or --no-dynamic (1) by default]) +AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code]) + +#set up feature test macros, so the tests get them right: +# turn on all POSIX, SUSv3, and GNU features if available +AC_GNU_SOURCE +dnl AC_DEFINE_UNQUOTED([_GNU_SOURCE],1,[feature test macro]) + +dnl Don't define _POSIX_SOURCE etc. because some OSs (in particular +dnl MacOSX) disable some features then (MacOSX checks for _POSIX_SOURCE, +dnl but not for _XOPEN_SOURCE) +dnl AC_DEFINE_UNQUOTED([_POSIX_SOURCE],1,[feature test macro]) +dnl AC_DEFINE_UNQUOTED([_POSIX_C_SOURCE],199506L,[feature test macro]) +dnl AC_DEFINE_UNQUOTED([_XOPEN_SOURCE],600,[feature test macro]) +# turn on large file support with 64-bit off_t where available +AC_SYS_LARGEFILE +dnl AC_DEFINE_UNQUOTED([_LARGEFILE_SOURCE],1,[feature test macro]) +dnl AC_DEFINE_UNQUOTED([_FILE_OFFSET_BITS],64,[feature test macro]) + +#currently we force direct threading this way. Eventually we should +#setup in the arch and engine files right AC_PROG_CC -if test "$GCC" = "yes" -then - echo "Fine, gcc is available" -else - cat <<'EOF' -Gforth requires GCC-2.0 or higher (it uses GNU C extensions). -It does not work with other C compilers. Please install the GNU C compiler, -and try again (or search for a binary distribution for your platform). -EOF - exit 1 -fi +test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher) AC_SUBST(CC) -AC_SUBST(GCCLDFLAGS) AC_SUBST(DEBUGFLAG) +AC_SUBST(EC_MODE) -dnl the following macro produces a warning with autoconf-2.1 -AC_CHECK_SIZEOF(char *) -case "$ac_cv_sizeof_char_p" in - 2) - wordsize=16 - ;; - 4) - wordsize=32 - ;; - 8) - wordsize=64 -dnl AC_CHECK_SIZEOF(long long) -dnl if [ $ac_cv_sizeof_long_long != 16 ] -dnl then -dnl try the whole thing with -mlonglong128 -dnl complain about C compiler and OS vendor -dnl fi - ;; -esac +AC_MSG_CHECKING(make type) +make_type=`make -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'` + +GNUMAKE='#' +test "$make_type" = "GNU Make" && GNUMAKE='' + +AC_MSG_RESULT($make_type) + +AC_SUBST(GNUMAKE) + +AC_MSG_CHECKING([whether the linker accepts -export-dynamic]) +OLDLDFLAGS=$LDFLAGS +LDFLAGS="$LDFLAGS -export-dynamic" +dnl AC_TRY_LINK gives false positive on rs6000-ibm-aix4.2.1.0 +dnl AC_TRY_LINK(,,ac_export_dynamic=yes,ac_export_dynamic=no) +AC_TRY_RUN(main(){exit(0);},ac_export_dynamic=yes,ac_export_dynamic=no,ac_export_dynamic=no) +test $ac_export_dynamic = yes|| LDFLAGS=$OLDLDFLAGS +AC_MSG_RESULT($ac_export_dynamic) #terminology is a bit unusual here: The host is the system on which #gforth will run; the system on which configure will run is the `build' AC_CANONICAL_HOST case "$host_cpu" in + arm*) + machine=arm + CFLAGS="$CFLAGS -fomit-frame-pointer" + if test -z $no_dynamic_default; then + no_dynamic_default=1 + AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) + fi + ;; hppa*) - mach_h=hppa - LIBOBJS="cache.o" - LDFLAGS="-Xlinker -N" - LIBS="-L/lib/pa1.1/" + machine=hppa + $srcdir/mkinstalldirs arch/hppa + AC_LIBOBJ(../arch/hppa/cache) + #-N needed for --dynamic + LDFLAGS="$LDFLAGS -Xlinker -N" + LIBS="$LIBS -L/lib/pa1.1/" ;; sparc*) - mach_h=sparc + machine=sparc ;; - i386|i486|i586) - mach_h=386 + i386) + machine=386 CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem" - #!! direct/indirect threading switch - #!! -m486 flag + ;; + i486) + machine=386 + CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486" + ;; + i*86) + machine=386 + CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem" + CFLAGS_1="$CFLAGS" + CFLAGS="$CFLAGS -march=pentium" + AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486") + ;; + x86_64) + machine=amd64 + ;; + ia64*) + machine=ia64 + AC_LIBOBJ(../arch/ia64/flush_icache_block) + test "$skipcode" || skipcode="nop.i 0" + #".skip 16" passes the test below, + # but gives an assembler error in engine + ;; + m68k) + machine=m68k + CFLAGS="$CFLAGS -fomit-frame-pointer" + if test "$host_os" = "nextstep3" + then + AC_LIBOBJ(termios) + fi ;; mips*) - mach_h=mips - #link text and data segment into the same 256M region! - GCCLDFLAGS="-Xlinker -T -Xlinker 10000000 -Xlinker -D -Xlinker 10400000" + machine=mips + #dynamic native code has the following problems on MIPS: + # + #1) J/JAL seems relocatable, but is are only + #relocatable within a 256MB-segment. While we try to + #get the linker to arrange this, there is no guarantee + #that this will succeed (and if the user uses a lot of + #memory, it is likely to fail). + # + #2) The way we generate dynamic native code may + #violate MIPS architectural restrictions (in + #particular, the delay slots of LW, MFLO, etc.) + # + #Therefore we disable dynamic native code by default: + if test -z $no_dynamic_default; then + no_dynamic_default=1 + AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)]) + fi ;; alpha*) - mach_h=alpha - echo Very Preliminary Support for Alpha!!! + machine=alpha + #full IEEE FP support for more uniformity across platforms: + CFLAGS="$CFLAGS -mieee" + ;; + power*|rs6000) + machine=power + $srcdir/mkinstalldirs arch/power + AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)]) + #long long is broken on (at least) gcc-2.95.* for PPC + test x$ac_cv_sizeof_long_long = x && + ($CC -v 2>&1 |grep -q 'gcc version 2.95') && + ac_cv_sizeof_long_long=0 ;; *) - echo "No direct threading support for $host_cpu, using indirect threading." - echo "Using a generic machine description. It will only work if char * AND" - echo "long values have the same size and long long is twice as long." - echo "I'll assume that C floats and doubles are represented by IEEE single and" - echo "double numbers. If this is not so, SF@ etc. will not work correctly." - echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!" - mach_h=32bit + AC_MSG_WARN([Using a generic machine description]) + AC_MSG_WARN([Assuming C floats and doubles are IEEE floats and doubles (for SF@ DF@ SF! DF!)]) + AC_MSG_WARN([FLUSH-ICACHE will do nothing, so END-CODE may not work properly!]) + machine=generic + #I-cache flushing would be needed for dynamic code generation + if test -z $no_dynamic_default; then + no_dynamic_default=1 + AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) + fi esac AC_SUBST(host) + +test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1 +AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST, + [number of registers in the default stack cache state for gforth-fast and gforth-native]) + +if test "${enable_force_ll+set}" = set; then + ac_includes_default="$ac_includes_default +#include \"arch/generic/128bit.h\"" +fi + +dnl the following macro produces a warning with autoconf-2.1 +AC_CHECK_SIZEOF(char *) +case "$ac_cv_sizeof_char_p" in + 2) + wordsize=16 + ;; + 4) + wordsize=32 + ;; + 8) + wordsize=64 + ;; +esac + +AC_CHECK_SIZEOF(char) +AC_CHECK_SIZEOF(short) +AC_CHECK_SIZEOF(int) +AC_CHECK_SIZEOF(long) +AC_CHECK_SIZEOF(long long) +AC_CHECK_SIZEOF(intptr_t) +AC_CHECK_SIZEOF(int128_t) +AC_CHECK_SIZEOF(uint128_t) + +AC_MSG_CHECKING([for a C type for cells]) +ac_cv_int_type_cell=none +case "$ac_cv_sizeof_char_p" in + $ac_cv_sizeof_int) + ac_cv_int_type_cell=int + ;; + $ac_cv_sizeof_short) + ac_cv_int_type_cell=short + ;; + $ac_cv_sizeof_char) + ac_cv_int_type_cell=char + ;; + $ac_cv_sizeof_long) + ac_cv_int_type_cell=long + ;; + $ac_cv_sizeof_long_long) + ac_cv_int_type_cell="long long" + ;; + $ac_cv_sizeof_intptr_t) + ac_cv_int_type_cell="intptr_t" + ;; + $ac_cv_sizeof_int128_t) + ac_cv_int_type_cell="int128_t" + ;; +esac +AC_MSG_RESULT($ac_cv_int_type_cell) +AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell,[an integer type that is as long as a pointer]) + +AC_MSG_CHECKING([for a C type for wydes]) +ac_cv_wyde_type_cell=none +case 2 in + $ac_cv_sizeof_int) + ac_cv_wyde_type_cell=int + ;; + $ac_cv_sizeof_short) + ac_cv_wyde_type_cell=short + ;; + $ac_cv_sizeof_char) + ac_cv_wyde_type_cell=char + ;; + $ac_cv_sizeof_long) + ac_cv_wyde_type_cell=long + ;; + $ac_cv_sizeof_long_long) + ac_cv_wyde_type_cell="long long" + ;; + $ac_cv_sizeof_intptr_t) + ac_cv_wyde_type_cell="intptr_t" + ;; + $ac_cv_sizeof_int128_t) + ac_cv_wyde_type_cell="int128_t" + ;; +esac +AC_MSG_RESULT($ac_cv_wyde_type_cell) +AC_DEFINE_UNQUOTED(WYDE_TYPE,$ac_cv_wyde_type_cell,[an integer type that is 2 bytes long]) + +AC_MSG_CHECKING([for a C type for tetrabytes]) +ac_cv_tetrabyte_type_cell=none +case 4 in + $ac_cv_sizeof_int) + ac_cv_tetrabyte_type_cell=int + ;; + $ac_cv_sizeof_short) + ac_cv_tetrabyte_type_cell=short + ;; + $ac_cv_sizeof_char) + ac_cv_tetrabyte_type_cell=char + ;; + $ac_cv_sizeof_long) + ac_cv_tetrabyte_type_cell=long + ;; + $ac_cv_sizeof_long_long) + ac_cv_tetrabyte_type_cell="long long" + ;; + $ac_cv_sizeof_intptr_t) + ac_cv_tetrabyte_type_cell="intptr_t" + ;; + $ac_cv_sizeof_int128_t) + ac_cv_tetrabyte_type_cell="int128_t" + ;; +esac +AC_MSG_RESULT($ac_cv_tetrabyte_type_cell) +AC_DEFINE_UNQUOTED(TETRABYTE_TYPE,$ac_cv_tetrabyte_type_cell,[an integer type that is 4 bytes long]) + +AC_MSG_CHECKING([for a C type for double-cells]) +ac_cv_int_type_double_cell=none +case `expr 2 '*' "$ac_cv_sizeof_char_p"` in + $ac_cv_sizeof_short) + ac_cv_int_type_double_cell=short + ;; + $ac_cv_sizeof_int) + ac_cv_int_type_double_cell=int + ;; + $ac_cv_sizeof_long) + ac_cv_int_type_double_cell=long + ;; + $ac_cv_sizeof_long_long) + ac_cv_int_type_double_cell="long long" + ;; + $ac_cv_sizeof_intptr_t) + ac_cv_int_type_double_cell="intptr_t" + ;; + $ac_cv_sizeof_int128_t) + ac_cv_int_type_double_cell="int128_t" + ;; +esac +AC_MSG_RESULT($ac_cv_int_type_double_cell) + +AC_MSG_CHECKING([for a C type for unsigned double-cells]) +ac_cv_int_type_double_ucell=none +case `expr 2 '*' "$ac_cv_sizeof_char_p"` in + $ac_cv_sizeof_short) + ac_cv_int_type_double_ucell="unsigned short" + ;; + $ac_cv_sizeof_int) + ac_cv_int_type_double_ucell="unsigned int" + ;; + $ac_cv_sizeof_long) + ac_cv_int_type_double_ucell="unsigned long" + ;; + $ac_cv_sizeof_long_long) + ac_cv_int_type_double_ucell="unsigned long long" + ;; + $ac_cv_sizeof_intptr_t) + ac_cv_int_type_double_ucell="unsigned intptr_t" + ;; + $ac_cv_sizeof_uint128_t) + ac_cv_int_type_double_ucell="uint128_t" + ;; +esac +AC_MSG_RESULT($ac_cv_int_type_double_ucell) + +if test "$ac_cv_int_type_double_cell" = none || \ + test "$ac_cv_int_type_double_ucell" = none +then + AC_MSG_WARN([Emulating double-cell arithmetic. This may be slow.]) + AC_LIBOBJ(dblsub) + AC_DEFINE(BUGGY_LONG_LONG,,[define this if there is no working DOUBLE_CELL_TYPE on your machine]) +else + AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell,[an integer type that is twice as long as a pointer]) + AC_DEFINE_UNQUOTED(DOUBLE_UCELL_TYPE,$ac_cv_int_type_double_ucell,[an unsigned integer type that is twice as long as a pointer]) +fi + +AC_TYPE_OFF_T +AC_CHECK_SIZEOF(off_t) +test $ac_cv_sizeof_off_t -gt $ac_cv_sizeof_char_p +ac_small_off_t=$? +AC_DEFINE_UNQUOTED(SMALL_OFF_T,$ac_small_off_t,[1 if off_t fits in a Cell]) + +ENGINE_FLAGS= AC_SUBST(ENGINE_FLAGS) +# Try if GCC understands -fno-gcse + +AC_MSG_CHECKING([if $CC understands -fno-gcse]) +CFLAGS_1="$CFLAGS" +CFLAGS="$CFLAGS -fno-gcse" +AC_TRY_COMPILE(,,ac_nogcse=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-gcse",ac_nogcse=no) +CFLAGS="$CFLAGS_1" +AC_MSG_RESULT($ac_nogcse) + +# Try if GCC understands -fno-strict-aliasing +AC_MSG_CHECKING([if $CC understands -fno-strict-aliasing]) +CFLAGS_1="$CFLAGS" +CFLAGS="$CFLAGS -fno-strict-aliasing" +AC_TRY_COMPILE(,,ac_nostrictaliasing=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-strict-aliasing",ac_nostrictaliasing=no) +CFLAGS="$CFLAGS_1" +AC_MSG_RESULT($ac_nostrictaliasing) + +# Try if GCC understands -fno-crossjumping +AC_MSG_CHECKING([if $CC understands -fno-crossjumping]) +CFLAGS_1="$CFLAGS" +CFLAGS="$CFLAGS -fno-crossjumping" +AC_TRY_COMPILE(,,ac_nocrossjumping=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-crossjumping",ac_nocrossjumping=no) +CFLAGS="$CFLAGS_1" +AC_MSG_RESULT($ac_nocrossjumping) + +# Try if GCC understands -fno-reorder-blocks +AC_MSG_CHECKING([if $CC understands -fno-reorder-blocks]) +CFLAGS_1="$CFLAGS" +CFLAGS="$CFLAGS -fno-reorder-blocks" +AC_TRY_COMPILE(,,ac_noreorder_blocks=yes;ENGINE_FLAGS="$ENGINE_FLAGS -fno-reorder-blocks",ac_noreorder_blocks=no) +CFLAGS="$CFLAGS_1" +AC_MSG_RESULT($ac_noreorder_blocks) + +# Try if GCC understands __attribute__((unused)) +AC_MSG_CHECKING([how to suppress 'unused variable' warnings]) +AC_TRY_COMPILE(,[int __attribute__((unused)) foo;], MAYBE_UNUSED='__attribute__((unused))',) +AC_DEFINE_UNQUOTED(MAYBE_UNUSED,$MAYBE_UNUSED,[attribute for possibly unused variables]) +AC_MSG_RESULT($MAYBE_UNUSED) + +AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine) +AC_SUBST(asm_fs) + +AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine) +AC_SUBST(disasm_fs) + +AC_PATH_PROG(INSTALL_INFO,install-info,[echo '>>>>Please make info dir entry:'],$PATH:/sbin:/usr/sbin:/usr/local/sbin) + +case "$host_os" in + *win32*) + # !!!FIXME!!! problems with cygwin and ';' as path separator + DIRSEP="\\\\" + PATHSEP=";" + #we want the builtins of command.com/cmd.exe and its + # handling of .com files. + #$COMSPEC contains the name of the Windows shell; + # the ./ is there, because the bash does not recognize + # absolute DOS filenames + DEFAULTSYSTEMPREFIX="./$COMSPEC /c " + ;; + *darwin*) + #Darwin uses some funny preprocessor by default; eliminate it: + AC_MSG_NOTICE([using -no-cpp-precomp on Darwin]) + CFLAGS="$CFLAGS -no-cpp-precomp" + DIRSEP="/" + PATHSEP=":" + DEFAULTSYSTEMPREFIX="" + ;; + *) + DIRSEP="/" + PATHSEP=":" + DEFAULTSYSTEMPREFIX="" + ;; +esac +AC_SUBST(DIRSEP) +AC_DEFINE_UNQUOTED(DIRSEP,'$DIRSEP',[a directory separator character]) +AC_SUBST(PATHSEP) +AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a path separator character]) +AC_SUBST(DEFAULTSYSTEMPREFIX) +AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$DEFAULTSYSTEMPREFIX",[default for environment variable GFORTHSYSTEMPREFIX]) + +#work around SELinux brain damage (from Andrew Haley <12t8f3jakb74g2c@news.supernews.com>) +#This magic incantation seems to be completely undocumented. +AC_CHECK_PROG([MASSAGE_EXE],[chcon],[chcon -t unconfined_execmem_exec_t],[true]) + dnl Now a little support for DOS/DJGCC -AC_SUBST(MAKE_EXE) -MAKE_EXE="" +AC_SUBST(GFORTH_EXE) +GFORTH_EXE="" +AC_SUBST(GFORTHFAST_EXE) +GFORTHFAST_EXE="" +AC_SUBST(GFORTHITC_EXE) +GFORTHITC_EXE="" +AC_SUBST(GFORTHDITC_EXE) +GFORTHDITC_EXE="" + +AC_SUBST(FORTHSIZES) + +dnl if test "$PEEPHOLE" = "yes" +dnl then +dnl PEEPHOLEFLAG="true" +dnl AC_DEFINE(HAS_PEEPHOLE,,[Define if you want to use peephole optimization]) +dnl else +dnl PEEPHOLEFLAG="false" +dnl fi +PEEPHOLEFLAG="true" +AC_SUBST(PEEPHOLEFLAG) dnl copy commands for systems that don't have links -AC_SUBST(LINK_KERNL16L) -LINK_KERNL16L="" -AC_SUBST(LINK_KERNL16B) -LINK_KERNL16B="" -AC_SUBST(LINK_KERNL32L) -LINK_KERNL32L="" -AC_SUBST(LINK_KERNL32B) -LINK_KERNL32B="" -AC_SUBST(LINK_KERNL64L) -LINK_KERNL64L="" -AC_SUBST(LINK_KERNL64B) -LINK_KERNL64B="" +AC_SUBST(LINK_KERNL) +LINK_KERNL="" #if test $host_os=dos #then # echo Configuring for DOS!!! # MAKE_EXE="coff2exe gforth" -# LINK_KERNL32L='$(CP) kernl32l.fi kernal.fi' +# LINK_KERNL='$(CP) kernl32l.fi kernel.fi' #fi dnl the following macro produces a warning with autoconf-2.1 AC_C_BIGENDIAN -AC_SUBST(KERNAL) +AC_SUBST(KERNEL) dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1 if test $ac_cv_c_bigendian = yes; then bytesex=b - KERNAL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi" + KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi" else bytesex=l - KERNAL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi" + KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi" +fi + +#check how to do asm(".skip 16") +#echo "CFLAGS=$CFLAGS" +#echo "ac_link=$ac_link" +AC_MSG_CHECKING([if and how we can waste code space]) +if test -z "$skipcode"; then + skipcode=no + CFLAGS_1="$CFLAGS" + CFLAGS="$CFLAGS $ENGINE_FLAGS" + for i in ".skip 16" ".block 16" ".org .+16" ".=.+16" ".space 16" + do + AC_TRY_RUN( +[int foo(int,int,int); +main() +{ + exit(foo(0,0,0)!=16); +} +int foo(int x, int y, int z) +{ + static void *labels[]={&&label1, &&label2}; + if (x) { + y++; /* workaround for http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12108 */ + label1: + asm("$i"); /* or ".space 16" or somesuch */ + label2: ; + } + { + if (y) goto *labels[z]; /* workaround for gcc PR12108 */ + return labels[1]-labels[0]; + } +}] + ,skipcode=$i; break + ,,) + done + CFLAGS=$CFLAGS_1 +fi +AC_MSG_RESULT($skipcode) +if test "$skipcode" = no +then + if test -z $no_dynamic_default; then + no_dynamic_default=1 + AC_MSG_WARN(Disabling default dynamic native code generation) + fi + AC_DEFINE_UNQUOTED(SKIP16,((void)0),statement for skipping 16 bytes) +else + AC_DEFINE_UNQUOTED(SKIP16,asm("$skipcode"),statement for skipping 16 bytes) fi +test "$no_dynamic_default" || no_dynamic_default=0 +AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic) + dnl Checks for programs. AC_PROG_LN_S AC_PROG_INSTALL +AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi) dnl Checks for library functions dnl This check is just for making later checks link with libm. dnl using sin here is no good idea since it is built-into gcc and typechecked AC_CHECK_LIB(m,asin) -AC_FUNC_MEMCMP -AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal) -dnl AC_TRY_LINK(#include ,sys_siglist;,AC_DEFINE(HAVE_SYS_SIGLIST),) -AC_CHECK_FUNCS(sys_siglist) -AC_CHECK_FUNC(getopt_long,getopt_long="",getopt_long="getopt.o getopt1.o") -AC_SUBST(getopt_long) -AC_CHECK_FUNCS(rint expm1 log1p) -AC_REPLACE_FUNCS(ecvt) +AC_CHECK_LIB(dl,dlopen) +dnl check for libffi 2.x +AC_CHECK_LIB(ffi,ffi_call) +if test $ac_cv_lib_ffi_ffi_call = yes +then +LIBFFIFLAG="true" +FFCALLFLAG="false" +OLDCALLFLAG="false" +AC_DEFINE(HAS_LIBFFI,,[define this if you want to use the ffcall interface with libffi 2.0]) +else +dnl check for ffcall libraries +dnl unfortunately, these four calls are separated out into a library each. +AC_CHECK_LIB(avcall,__builtin_avcall) +AC_CHECK_LIB(callback,__vacall_r) +AC_CHECK_LIB(vacall,vacall) +AC_CHECK_LIB(trampoline,alloc_trampoline) +LIBFFIFLAG="false" +FFCALLFLAG="false" +OLDCALLFLAG="true" +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]) +test $ac_cv_lib_avcall___builtin_avcall = no && AC_DEFINE(HAS_OLDCALL,,[define this if you want to use the old call libraries]) +fi +AC_SUBST(LIBFFIFLAG) +AC_SUBST(FFCALLFLAG) +AC_SUBST(OLDCALLFLAG) +if test "$host_os" != "nextstep3" +then + AC_FUNC_MEMCMP +fi +AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh) +AC_FUNC_FSEEKO +AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage) +AC_CHECK_TYPES(stack_t,,,[#include ]) +AC_DECL_SYS_SIGLIST +AC_CHECK_FUNC(getopt_long,[true],[AC_LIBOBJ(getopt) AC_LIBOBJ(getopt1)]) +AC_CHECK_FUNCS(expm1 log1p) +AC_REPLACE_FUNCS(rint ecvt) dnl No check for select, because our replacement is no good under dnl anything but DOS +AC_CHECK_HEADERS(sys/mman.h fnmatch.h) +AC_FUNC_FNMATCH +test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch) +AC_CHECK_FUNCS(mmap sysconf getpagesize) +AM_PATH_LISPDIR + +kernel_fi=kernl${wordsize}${bytesex}.fi +AC_SUBST(kernel_fi) + +#this breaks bindists +#dnl replace srource directory by absolute value +#if test $srcdir = "."; then srcdir=`pwd` +#fi -kernal_fi=kernl${wordsize}${bytesex}.fi -AC_SUBST(kernal_fi) - -AC_LINK_FILES(${mach_h}.h $kernal_fi,machine.h kernal.fi) -AC_OUTPUT(Makefile) +AC_SUBST(machine) +AC_CONFIG_FILES([ +Makefile +Makedist +gforthmi +vmgen +machpc.fs +envos.fs +engine/Makefile +doc/version.texi +build-ec ]) +AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h +chmod +x gforthmi +chmod +x vmgen +chmod +x build-ec +test -d kernel||mkdir kernel]],[[]]) +AC_OUTPUT