--- gforth/configure.in 1998/10/25 23:15:45 1.40 +++ gforth/configure.in 2008/10/27 22:03:12 1.261 @@ -1,12 +1,12 @@ dnl Process this file with autoconf to produce a configure script. -#Copyright (C) 1995,1996 Free Software Foundation, Inc. +#Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008 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 +#as published by the Free Software Foundation, either version 3 #of the License, or (at your option) any later version. #This program is distributed in the hope that it will be useful, @@ -15,61 +15,349 @@ dnl Process this file with autoconf to p #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., 675 Mass Ave, Cambridge, MA 02139, USA. +#along with this program. If not, see http://www.gnu.org/licenses/. -AC_INIT(engine/engine.c) dnl We use some automake macros here, dnl but don't use automake for creating Makefile.in -AM_INIT_AUTOMAKE(gforth,0.4.0) -AM_CONFIG_HEADER(engine/config.h) -AM_CYGWIN32 - -AC_ARG_ENABLE(force-reg, -[ --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)) +AC_INIT([gforth],[0.6.9-20081026],[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="October 26, 2008" +AC_SUBST(UPDATED) +AC_CONFIG_HEADERS(engine/config.h) + +#remnants from having ltdl as convenience library +LTDLDEPS="" +LTDLINCL="" +LIBLTDL="" +LTDL_LDLIBS="" +AC_SUBST(LTDLDEPS) +AC_SUBST(LTDLINCL) +AC_SUBST(LIBLTDL) +AC_SUBST(LTDL_LDLIBS) + +#suppress the "-g -O2" default +test "$CFLAGS" || CFLAGS=-O2 + +AC_ARG_ENABLE(force-cdiv, + AC_HELP_STRING([--enable-force-cdiv], + [ Use the native C division - symmetric - instead of + floored division (default disabled).]), + ,enable_force_cdiv=no) +test "$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 "$enable_prof" != "no"; then + PROFEXES='gforth-prof$(OPT)$(EXE)'; PROFOBJS='engine-prof$(OPT).o main-prof$(OPT).o profile$(OPT).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 +GCC_LD="\$(GCC)" +EC_MODE="false" +EC="" +engine2='engine2$(OPT).o' +engine_fast2='engine-fast2$(OPT).o' +no_dynamic="" +image_i="" +signals_o="io.o signals.o" + +AC_ARG_WITH(ec, + AC_HELP_STRING([--with-ec=], + [ Build gforth for systems without OS.]), +[if test "$withval" = "no"; then + echo "defining hosted system" +else + echo "defining standalone system (${withval})" + AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS]) + EC_MODE="true" + EC="-ec" + engine2="" + engine_fast2="" + no_dynamic="-DNO_DYNAMIC" + image_i="image.i" + if test "$withval" != "yes"; then + signals_o="io-${withval}.o" + else + signals_o="io.o" + fi + GCC_PATH=$(which $CC) + LIB_PATH=${GCC_PATH%/*/*} + GCC_LD="\$(LD)" + platform=${withval} +fi]) + +#variables mentioned in INSTALL +AC_ARG_VAR(CC, [The C compiler (must support GNU C 2.x).]) +AC_ARG_VAR(FORTHSIZES, [Gforth command line options for the default stack and dictionary sizes (see INSTALL).]) +AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).]) +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(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)]) +AC_ARG_VAR(LIBCC_BUILD_SRC, [(Additional) libcc interface source files that should be processed on building and installation (default none)]) + +AC_ARG_VAR(ac_cv_sizeof_char_p, [sizeof(char *)]) +AC_ARG_VAR(ac_cv_sizeof_void_p, [sizeof(void *)]) +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(condbranch_opt, [enable (1) or disable (0) using two dispatches for conditional branches]) +AC_ARG_VAR(skipcode, [assembly code for skipping 16 bytes of code]) +AC_ARG_VAR(asmcomment, [assembler comment start string]) +AC_ARG_VAR(arm_cacheflush, [file containing ARM cacheflush function (without .c)]) +AC_ARG_VAR(LTDL_LIBRARY_PATH, [additional directories for libltdl (for some 64-bit platforms)]) + +#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" +test "$GCC" = "yes" || AC_MSG_ERROR(Gforth uses GNU C extensions and requires GCC 2.0 or higher) + +AC_MSG_CHECKING([whether to use two dispatches per conditional branch]) +test x$condbranch_opt = x && +if ($CC -v 2>&1 |grep 'gcc version 3' >/dev/null); then + condbranch_opt=0 else - cat <<'EOF' -Gforth requires GCC-2.0 or higher (it uses GNU C extensions). -It does not work with other C compilers. Please install the GNU C compiler, -and try again (or search for a binary distribution for your platform). -EOF - exit 1 + condbranch_opt=1 fi +AC_MSG_RESULT($condbranch_opt) +AC_SUBST(condbranch_opt) AC_SUBST(CC) +AC_SUBST(GCC_LD) AC_SUBST(DEBUGFLAG) +AC_SUBST(EC) +AC_SUBST(EC_MODE) +AC_SUBST(engine2) +AC_SUBST(engine_fast2) +AC_SUBST(no_dynamic) +AC_SUBST(image_i) +AC_SUBST(signals_o) + +#this is used to disable some (not generally essential) part of the +#Makefile that some makes don't grok. It would be better to test for +#this specific Makefile feature than the make version. +AC_MSG_CHECKING(make type) +make_type=`make -n -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 + $srcdir/mkinstalldirs arch/arm + CFLAGS="$CFLAGS -fomit-frame-pointer" + if test x$platform = xnxt; then + CFLAGS="$CFLAGS -mthumb -mthumb-interwork" + fi + if test -z $arm_cacheflush; then + case "$host_os" in + *linux*) + AC_LIBOBJ(../arch/arm/cacheflush-linux) + ;; + *) + no_dynamic_default=1 + AC_LIBOBJ(../arch/arm/cacheflush0) + AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) + ;; + esac + else + AC_LIBOBJ(../$arm_cacheflush) + test $srcdir = . || AC_MSG_WARN([setting arm_cacheflush requires building in the source directory]) + fi + #longer skipcodes lead to problems on ARM, and it uses + #only 4-byte alignment anyway + test "$skipcode" || skipcode="nop" + ;; + hppa*) + machine=hppa + $srcdir/mkinstalldirs arch/hppa + AC_LIBOBJ(../arch/hppa/cache) + #-N needed for --dynamic + LDFLAGS="$LDFLAGS -Xlinker -N" + LIBS="$LIBS -L/lib/pa1.1/" + ;; + sparc*) + machine=sparc + ;; + i386) + machine=386 + CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" + ;; + i486) + machine=386 + CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -m486" + ;; + i*86) + machine=386 + CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" + CFLAGS_1="$CFLAGS" + CFLAGS="$CFLAGS -march=pentium" + AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486") + ;; + x86_64) + case $CC + in + *-m32*) + machine=386 + CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr" + CFLAGS_1="$CFLAGS" + CFLAGS="$CFLAGS -march=athlon64" + ;; + *) + machine=amd64 + ;; + esac + ;; + 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 "$host_os" = "nextstep3" + then + AC_LIBOBJ(termios) + fi + ;; + mips*) + machine=mips + #dynamic native code has the following problems on MIPS: + # + #1) J/JAL seems relocatable, but is are only + #relocatable within a 256MB-segment. While we try to + #get the linker to arrange this, there is no guarantee + #that this will succeed (and if the user uses a lot of + #memory, it is likely to fail). + # + #2) The way we generate dynamic native code may + #violate MIPS architectural restrictions (in + #particular, the delay slots of LW, MFLO, etc.) + # + #Therefore we disable dynamic native code by default: + if test -z "$no_dynamic_default"; then + no_dynamic_default=1 + AC_MSG_WARN([Disabling default dynamic native code generation (relocation and delay slot issues)]) + fi + ;; + alpha*) + 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 && + ($CC -v 2>&1 |grep 'gcc version 2.95' >/dev/null) && + ac_cv_sizeof_long_long=0 + #The only architecture with enough callee-saved registers + test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=3 + #or use 2, hardly slower at run-time and starts up faster + ;; + *) + 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 $no_dynamic_default; then + no_dynamic_default=1 + AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) + fi +esac +AC_SUBST(host) + +MAKEINC="" + +echo "Check for arch/$machine/$platform/gforth.ld ($EC_MODE)" +if test x$EC_MODE = xtrue +then + echo "Check for arch/$machine/$platform/gforth.ld" + if test -f arch/$machine/$platform/gforth.ld + then + LDFLAGS="-T ../arch/$machine/$platform/gforth.ld -Map \$@.map -cref --gc-sections $LDFLAGS" + if test x$platform = xnxt; then + 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 $LIBS" + fi + fi + if test -f arch/$machine/$platform/make.inc + then + MAKEINC="include ../arch/$machine/$platform/make.inc" + fi +fi +AC_SUBST(MAKEINC) + +AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).]) + +test x$STACK_CACHE_REGS = x && STACK_CACHE_REGS=1 +AC_DEFINE_UNQUOTED(STACK_CACHE_REGS, $STACK_CACHE_REGS, + [number of registers in the maximum stack cache state for gforth-fast and gforth-native]) +test x$STACK_CACHE_DEFAULT_FAST = x && STACK_CACHE_DEFAULT_FAST=1 +AC_DEFINE_UNQUOTED(STACK_CACHE_DEFAULT_FAST, $STACK_CACHE_DEFAULT_FAST, + [number of registers in the default stack cache state for gforth-fast and gforth-native]) + +test x$GCC_PR15242_WORKAROUND = x || +AC_DEFINE_UNQUOTED(GCC_PR15242_WORKAROUND, $GCC_PR15242_WORKAROUND, + [force (1) or forbid (0) use of a workaround for a gcc performance bug]) dnl the following macro produces a warning with autoconf-2.1 AC_CHECK_SIZEOF(char *) @@ -85,12 +373,29 @@ case "$ac_cv_sizeof_char_p" in ;; esac +AC_CHECK_SIZEOF(void *) +case "$ac_cv_sizeof_void_p" in + 2) + vwordsize=16 + ;; + 4) + vwordsize=32 + ;; + 8) + vwordsize=64 + ;; +esac + AC_CHECK_SIZEOF(char) AC_CHECK_SIZEOF(short) AC_CHECK_SIZEOF(int) AC_CHECK_SIZEOF(long) AC_CHECK_SIZEOF(long long) +AC_CHECK_SIZEOF(intptr_t) +AC_CHECK_SIZEOF(int128_t) +AC_CHECK_SIZEOF(uint128_t) +AC_MSG_CHECKING([for a C type for cells]) ac_cv_int_type_cell=none case "$ac_cv_sizeof_char_p" in $ac_cv_sizeof_int) @@ -108,14 +413,64 @@ case "$ac_cv_sizeof_char_p" in $ac_cv_sizeof_long_long) ac_cv_int_type_cell="long long" ;; + $ac_cv_sizeof_intptr_t) + ac_cv_int_type_cell="intptr_t" + ;; esac -if test "$ac_cv_int_type_cell" != int; then - echo "So, sizeof(pointer)!=sizeof(int); looks like a DOS C compiler to me." - echo "Since you don't have a proper C on this machine, that's one more reason" - echo "to use Forth;-)" -fi -AC_DEFINE_UNQUOTED(CELL_TYPE,$ac_cv_int_type_cell) +AC_MSG_RESULT($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" + ;; + $ac_cv_sizeof_intptr_t) + ac_cv_wyde_type_cell="intptr_t" + ;; +esac +AC_MSG_RESULT($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" + ;; + $ac_cv_sizeof_intptr_t) + ac_cv_tetrabyte_type_cell="intptr_t" + ;; +esac +AC_MSG_RESULT($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 $ac_cv_sizeof_short) @@ -130,123 +485,245 @@ case `expr 2 '*' "$ac_cv_sizeof_char_p"` $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" + ;; + $ac_cv_sizeof_int128_t) + ac_cv_int_type_double_cell="int128_t" + ;; esac -if test "$ac_cv_int_type_double_cell" = none; then - echo "Emulating double-cell arithmetic. This may be slow." - echo "If you find this unacceptable, ask the GCC maintainers to provide proper" - echo 'long longs for your machine (the GCC manual states that they \"are twice as' - echo "long as \`long int\'\")." - LIBOBJS="$LIBOBJS dblsub.o" - AC_DEFINE(BUGGY_LONG_LONG) +AC_MSG_RESULT($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_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]) + OPTS=-ll else - AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell) + if test "$ac_cv_sizeof_char_p" = 8; then + OPTS="-ll -noll" + else + OPTS=-noll + fi fi -#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 "$host_cpu" in - hppa*) - machine=hppa - LIBOBJS="$LIBOBJS ../arch/hppa/cache.o" - LDFLAGS="-Xlinker -N" - LIBS="-L/lib/pa1.1/" - if test "${enable_direct_threaded+set}" = "" - then - AC_DEFINE(DIRECT_THREADED) - fi - ;; - sparc*) - machine=sparc - ;; - i386) - machine=386 - CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem" - if test "${enable_direct_threaded+set}" = "" \ - -a "${enable_indirect_threaded+set}" = "" - then - echo "Using direct threaded code on 386" - AC_DEFINE(DIRECT_THREADED) - fi - ;; - i486) - machine=386 - CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486" - if test "${enable_direct_threaded+set}" = "" \ - -a "${enable_indirect_threaded+set}" = "" - then - echo "Using direct threaded code on 486" - AC_DEFINE(DIRECT_THREADED) - fi - ;; - i586|i686) - machine=386 - CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem -m486" - if test "${enable_direct_threaded+set}" = "" \ - -a "${enable_indirect_threaded+set}" = "" - then - echo "Using indirect threaded code on Pentium and up" - AC_DEFINE(INDIRECT_THREADED) - fi - ;; - m68k) - machine=m68k - CFLAGS="$CFLAGS -fomit-frame-pointer" - if test "$host_os" = "nextstep3" - then - LIBOBJS="$LIBOBJS termios.o" - fi - ;; - mips*) - machine=mips - #link text and data segment into the same 256M region! - AC_MSG_CHECKING([whether the linker accepts -D]) - OLDLDFLAGS=$LDFLAGS - LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000 -Xlinker -D -Xlinker 10400000" - AC_TRY_LINK(,,ac_link_mips_d=yes,ac_link_mips_d=no) - test $ac_link_mips_d = yes||LDFLAGS="$OLDLDFLAGS -Xlinker -T -Xlinker 10000000" - AC_MSG_RESULT($ac_link_mips_d) - ;; - alpha*) - machine=alpha - ;; - power*) - machine=power - AC_CHECK_FUNC(_sync_cache_range,true,LIBOBJS="$LIBOBJS ../arch/power/_sync_cache_range.o") - ;; - *) - echo "No direct threading support for $host_cpu, using indirect threading." - echo "Using a generic machine description." - 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!" - machine=generic -esac -AC_SUBST(host) +if grep FORCE_REG $srcdir/arch/$machine/machine.h >/dev/null; then + OPTS2='' + for i in $OPTS; do OPTS2="$OPTS2 $i-reg"; done + OPTS="$OPTS2 $OPTS" +else + AC_DEFINE_UNQUOTED(FORCE_REG_UNNECESSARY,,[defined if the platform does not need FORCE_REG]) +fi +AC_SUBST(OPTS) + +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 -falign-labels=1 +AC_MSG_CHECKING([if $CC understands -falign-labels=1]) +CFLAGS_1="$CFLAGS" +CFLAGS="$CFLAGS -falign-labels=1" +AC_TRY_COMPILE(,,ac_align_labels=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-labels=1",ac_align_labels=no) +CFLAGS="$CFLAGS_1" +AC_MSG_RESULT($ac_align_labels) + +# Try if GCC understands -falign-loops=1 +AC_MSG_CHECKING([if $CC understands -falign-loops=1]) +CFLAGS_1="$CFLAGS" +CFLAGS="$CFLAGS -falign-loops=1" +AC_TRY_COMPILE(,,ac_align_loops=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-loops=1",ac_align_loops=no) +CFLAGS="$CFLAGS_1" +AC_MSG_RESULT($ac_align_loops) + +# Try if GCC understands -falign-jumps=1 +AC_MSG_CHECKING([if $CC understands -falign-jumps=1]) +CFLAGS_1="$CFLAGS" +CFLAGS="$CFLAGS -falign-jumps=1" +AC_TRY_COMPILE(,,ac_align_jumps=yes;ENGINE_FLAGS="$ENGINE_FLAGS -falign-jumps=1",ac_align_jumps=no) +CFLAGS="$CFLAGS_1" +AC_MSG_RESULT($ac_align_jumps) + +# 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) + +#try if m4 understands -s +AC_MSG_CHECKING([how to invoke m4]) +if m4 -s /dev/null >/dev/null 2>&1; then + M4="m4 -s" +else + M4=m4 +fi +AC_SUBST(M4) +AC_MSG_RESULT($M4) + +# Find installed Gforth +AC_MSG_CHECKING([for gforth]) +GFORTH="`cd / && which gforth 2>/dev/null`" +#the "$srcdir" = "." test defends agains the "../" bug in gforth-0.6.2 +(cd / && $GFORTH -e bye >/dev/null 2>/dev/null && test "$srcdir" = ".") || GFORTH="" +if test -z "$GFORTH"; then + PREFORTH='echo "You need to configure with a gforth in \$PATH to build this part" && false' + kernel_anti_dependence='' +else + PREFORTH="$GFORTH -i `cd / && $GFORTH --debug -e bye 2>&1 |grep "Opened image file: "|sed 's/Opened image file: //'`" ; + kernel_anti_dependence='$(kernel_fi)' +fi +AC_SUBST(PREFORTH) +AC_SUBST(kernel_anti_dependence) +AC_MSG_RESULT($PREFORTH) + +#echo "machine='$machine'" + +dnl AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine) +AC_CHECK_FILE($srcdir/arch/$machine/asm.fs,[asm_fs=arch/$machine/asm.fs],) +AC_SUBST(asm_fs) + +dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine) +AC_CHECK_FILE($srcdir/arch/$machine/disasm.fs,[disasm_fs=arch/$machine/disasm.fs],) +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) - EXE=".exe" + *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="$CFLAGS -no-cpp-precomp" + DIRSEP="/" + PATHSEP=":" + DEFAULTSYSTEMPREFIX="" + #the following magic value was suggested by + #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html + AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions]) + ;; + *linux*) + DIRSEP="/" + PATHSEP=":" + DEFAULTSYSTEMPREFIX="" + if test -z "$LTDL_LIBRARY_PATH" -a "$wordsize" = 64; then + LTDL_LIBRARY_PATH=`/sbin/ldconfig -p |tail -n +2 |sed 's/^.* => //'|sed 's|/[[^/]]*$||'| grep 64 | sort -u | tr '\n' : | sed -e 's/:$//'` + fi ;; *) - EXE="" + DIRSEP="/" + PATHSEP=":" + DEFAULTSYSTEMPREFIX="" ;; esac -AC_SUBST(EXE) +AC_SUBST(DIRSEP) +AC_DEFINE_UNQUOTED(DIRSEP,'$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]) +if test -n "$LTDL_LIBRARY_PATH"; then + AC_DEFINE_UNQUOTED(LTDL_LIBRARY_PATH,"$LTDL_LIBRARY_PATH",[Define LTDL_LIBRARY_PATH for 64 bit Linux]) +fi + +#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(GFORTH_EXE) -GFORTH_EXE="" +GFORTH_EXE="true" +AC_SUBST(GFORTHFAST_EXE) +GFORTHFAST_EXE="true" +AC_SUBST(GFORTHITC_EXE) +GFORTHITC_EXE="true" AC_SUBST(GFORTHDITC_EXE) -GFORTHDITC_EXE="" - -PATHSEP=":" -AC_SUBST(PATHSEP) -AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP') +GFORTHDITC_EXE="true" AC_SUBST(FORTHSIZES) +dnl if test "$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_KERNL) LINK_KERNL="" @@ -262,7 +739,7 @@ dnl the following macro produces a warni AC_C_BIGENDIAN AC_SUBST(KERNEL) dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1 -if test $ac_cv_c_bigendian = yes; then +if test $ac_cv_c_bigendian != no; then bytesex=b KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi" else @@ -270,39 +747,178 @@ else KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi" fi +#check how to do asm(".skip 16") +#echo "CFLAGS=$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 + +AC_MSG_CHECKING([if and how we can do comments in asm statements]) +#the point here is to get asm statements that look different to +#gcc's "optimizer" +if test -z "$asmcomment"; then + asmcomment=no + CFLAGS_1="$CFLAGS" + CFLAGS="$CFLAGS $ENGINE_FLAGS" + for i in '"# "' '"! "' '"; "'; do + AC_TRY_COMPILE(,[asm($i"fluffystunk");],asmcomment=$i; break,) + done + CFLAGS=$CFLAGS_1 +fi +AC_MSG_RESULT($asmcomment) +if test "$asmcomment" != no +then + AC_DEFINE_UNQUOTED(ASMCOMMENT,$asmcomment,[assembler comment start string]) +fi + +test "$no_dynamic_default" || no_dynamic_default=0 +AC_DEFINE_UNQUOTED(NO_DYNAMIC_DEFAULT,$no_dynamic_default,default value for no_dynamic) + dnl Checks for programs. AC_PROG_LN_S -dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE +AC_PROG_INSTALL +AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi) + +dnl MacOS X has a libtool that does something else +AC_CHECK_PROGS(GNU_LIBTOOL,glibtool libtool) + +if test -n "$GNU_LIBTOOL"; then + build_libcc_named=build-libcc-named +else + build_libcc_named="" +fi +AC_SUBST(build_libcc_named) + 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_CHECK_FUNCS(dlopen) -AC_CHECK_LIB(dl,dlopen) -AC_CHECK_LIB(kernel32,GetModuleHandle) +AC_CHECK_LIB(ltdl,lt_dlinit) +#check for libffi 2.x +AC_CHECK_HEADER(ffi.h,FFI_H_NAME=ffi.h,) +if test -z "$FFI_H_NAME"; then + AC_CHECK_HEADER(ffi/ffi.h,FFI_H_NAME=ffi/ffi.h,) +fi +AC_SUBST(FFI_H_NAME) +AC_CHECK_LIB(ffi,ffi_call) +if test -n "$FFI_H_NAME" -a $ac_cv_lib_ffi_ffi_call = yes +then + LIBFFIFLAG="true" + LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC libffi.fs" +else + LIBFFIFLAG="false" +fi +#check for ffcall libraries +#unfortunately, these four calls are separated out into a library each. +AC_CHECK_LIB(avcall,__builtin_avcall) +dnl AC_CHECK_LIB(callback,__vacall_r) +dnl AC_CHECK_LIB(vacall,vacall) +dnl AC_CHECK_LIB(trampoline,alloc_trampoline) +if test $ac_cv_lib_avcall___builtin_avcall = yes; then + FFCALLFLAG="true" + LIBCC_BUILD_SRC="$LIBCC_BUILD_SRC fflib.fs" +else + FFCALLFLAG="false" +fi +if test $LIBFFIFLAG = false -a $FFCALLFLAG = false; then + AC_MSG_WARN([The (old) lib.fs foreign function interface needs either libffi or the ffcall libraries]) +fi +AC_SUBST(LIBFFIFLAG) +AC_SUBST(FFCALLFLAG) +AC_SUBST(LIBCC_BUILD_SRC) if test "$host_os" != "nextstep3" then AC_FUNC_MEMCMP fi AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh) -AC_CHECK_FUNCS(sys_siglist) +AC_FUNC_FSEEKO +AC_CHECK_FUNCS(ftello dlopen sys_siglist getrusage nanosleep) +AC_CHECK_TYPES(stack_t,,,[#include ]) AC_DECL_SYS_SIGLIST -AC_CHECK_FUNC(getopt_long,true,LIBOBJS="$LIBOBJS getopt.o getopt1.o") -AC_CHECK_FUNCS(rint expm1 log1p) -AC_REPLACE_FUNCS(ecvt) +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) -AC_CHECK_FUNCS(mmap sysconf getpagesize) +AC_CHECK_HEADERS(sys/mman.h fnmatch.h alloca.h wchar.h) +AC_FUNC_FNMATCH +test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch) +AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth) AM_PATH_LISPDIR -kernel_fi=kernl${wordsize}${bytesex}.fi +kernel_fi=kernl${vwordsize}${bytesex}.fi +include_fi=kernl${wordsize}${bytesex}${EC}.fi AC_SUBST(kernel_fi) +AC_SUBST(include_fi) + +#this breaks bindists +#dnl replace srource directory by absolute value +#if test $srcdir = "."; then srcdir=`pwd` +#fi AC_SUBST(machine) -dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed -AC_OUTPUT([ +AC_CONFIG_FILES([ Makefile +Makedist +gforthmi +vmgen +machpc.fs +envos.fs +preforth engine/Makefile -doc/version.texi ],echo timestamp > stamp-h) +engine/libcc.h +doc/version.texi +build-ec ]) +AC_CONFIG_COMMANDS([stamp-h],[[echo timestamp > stamp-h +chmod +x gforthmi +chmod +x vmgen +chmod +x build-ec +chmod +x preforth +test -d kernel||mkdir kernel +if test $srcdir != "."; then ln -sf $srcdir/gforth.el .; fi +$srcdir/mkinstalldirs include/gforth/$PACKAGE_VERSION +ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]],[[PACKAGE_VERSION=$PACKAGE_VERSION]]) +AC_OUTPUT +