dnl Process this file with autoconf to produce a configure script. #Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009 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 3 #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, see http://www.gnu.org/licenses/. dnl We use some automake macros here, dnl but don't use automake for creating Makefile.in AC_INIT([gforth],[0.7.0-20090215],[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="November 8, 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 --without-debug omits the -g switch and creates smaller images on machines where "strip" has problems with gcc style debugging informations.], if test "$withval" = "yes"; then DEBUGFLAG=-g; fi) GCC_LD="\$(GCC)" EC_MODE="false" NO_EC="" EC="" engine2='engine2$(OPT).o' engine_fast2='engine-fast2$(OPT).o' no_dynamic="" image_i="" signals_o="io.o signals.o" AC_CANONICAL_HOST AC_ARG_WITH(ec, AC_HELP_STRING([--with-ec=], [ Build gforth for systems without OS.]), [if test "$withval" = "no"; then echo "defining hosted system" else echo "defining standalone system (${withval})" AC_DEFINE(STANDALONE,,[Define if you want a Gforth without OS]) EC_MODE="true" EC="-ec" NO_EC="#" engine2="" engine_fast2="" no_dynamic="-DNO_DYNAMIC" image_i="image.i" if test "$withval" != "yes"; then signals_o="io-${withval}.o" else signals_o="io.o" fi if test -f "arch/$host_cpu/${withval}/config.sh"; then source "arch/$host_cpu/${withval}/config.sh" fi GCC_PATH=$(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 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 condbranch_opt=1 fi AC_MSG_RESULT($condbranch_opt) AC_SUBST(condbranch_opt) AC_SUBST(CC) AC_SUBST(GCC_LD) AC_SUBST(DEBUGFLAG) AC_SUBST(EC) AC_SUBST(NO_EC) AC_SUBST(EC_MODE) AC_SUBST(engine2) AC_SUBST(engine_fast2) AC_SUBST(no_dynamic) AC_SUBST(image_i) AC_SUBST(signals_o) #this is used to disable some (not generally essential) part of the #Makefile that some makes don't grok. It would be better to test for #this specific Makefile feature than the make version. AC_MSG_CHECKING(make type) make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'` GNUMAKE='#' test "$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($ac_export_dynamic) #terminology is a bit unusual here: The host is the system on which #gforth will run; the system on which configure will run is the `build' case "$host_cpu" in arm*) machine=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 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="$CFLAGS -mieee" ;; power*|rs6000) machine=power AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)]) #long long is broken on (at least) gcc-2.95.* for PPC test x$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 #the skipcode that is normally selected below does not #work with gcc-3.[34] test "$skipcode" || skipcode="nop\nnop\nnop\nnop" ;; *) 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 $no_dynamic_default; then no_dynamic_default=1 AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) fi esac AC_SUBST(host) MAKEINC="" GFORTH_EXE="true" echo "Check for arch/$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/$platform/make.inc" GFORTH_EXE="\$(MAKE) -f arch/$machine/$platform/make.inc \$@.exe" fi fi AC_SUBST(MAKEINC) AC_ARG_VAR(STACK_CACHE_REGS, [number of registers in the maximum stack cache state for gforth-fast and gforth-native (default platform-dependent).]) test x$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, $GCC_PR15242_WORKAROUND, [force (1) or forbid (0) use of a workaround for a gcc performance bug]) dnl the following macro produces a warning with autoconf-2.1 AC_CHECK_SIZEOF(char *) case "$ac_cv_sizeof_char_p" in 2) wordsize=16 ;; 4) wordsize=32 ;; 8) wordsize=64 ;; 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) 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" ;; $ac_cv_sizeof_intptr_t) ac_cv_int_type_cell="intptr_t" ;; esac AC_MSG_RESULT($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" ;; $ac_cv_sizeof_intptr_t) ac_cv_wyde_type_cell="intptr_t" ;; esac AC_MSG_RESULT($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) 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_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 if test "$ac_cv_sizeof_char_p" = 8; then OPTS="-ll -noll" else OPTS=-noll fi fi 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) if test -z "$LIBTOOL_CC" then LIBTOOL_CC="$CC" # Try if GCC understands -Wimplicit-function-declaration AC_MSG_CHECKING([if $CC understands -Wimplicit-function-declaration]) CFLAGS_1="$CFLAGS" CFLAGS="$CFLAGS -Wimplicit-function-declaration" AC_TRY_COMPILE(,,LIBTOOL_CC="$CC -Wimplicit-function-declaration",) CFLAGS="$CFLAGS_1" AC_MSG_RESULT($ac_align_jumps) fi AC_SUBST(LIBTOOL_CC) # 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/$machine) if test x$EC_MODE = xfalse then AC_CHECK_FILE($srcdir/arch/$machine/asm.fs,[asm_fs=arch/$machine/asm.fs],) fi AC_SUBST(asm_fs) dnl AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine) if test x$EC_MODE = xfalse then AC_CHECK_FILE($srcdir/arch/$machine/disasm.fs,[disasm_fs=arch/$machine/disasm.fs],) fi 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="$CFLAGS -no-cpp-precomp" DIRSEP="/" PATHSEP=":" DEFAULTSYSTEMPREFIX="" #the following magic value was suggested by #http://mail.python.org/pipermail/pythonmac-sig/2005-October/015190.html AC_DEFINE_UNQUOTED(MACOSX_DEPLOYMENT_TARGET,"10.3",[an environment variable value needed by libtool on some MacOS X versions]) ;; *linux*) DIRSEP="/" PATHSEP=":" DEFAULTSYSTEMPREFIX="" if test -z "$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/:$//'` fi ;; *) DIRSEP="/" PATHSEP=":" DEFAULTSYSTEMPREFIX="" ;; esac AC_SUBST(DIRSEP) AC_DEFINE_UNQUOTED(DIRSEP,'$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]) 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 GFORTHFAST_EXE="$GFORTH_EXE" GFORTHITC_EXE="$GFORTH_EXE" GFORTHDITC_EXE="$GFORTH_EXE" AC_SUBST(GFORTH_EXE) AC_SUBST(GFORTHFAST_EXE) AC_SUBST(GFORTHITC_EXE) AC_SUBST(GFORTHDITC_EXE) AC_SUBST(FORTHSIZES) dnl if test "$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_KERNL) LINK_KERNL="" #if test $host_os=dos #then # echo Configuring for DOS!!! # MAKE_EXE="coff2exe gforth" # LINK_KERNL='$(CP) kernl32l.fi kernel.fi' #fi dnl the following macro produces a warning with autoconf-2.1 AC_C_BIGENDIAN AC_SUBST(KERNEL) dnl ac_cv_c_bigendian is an undocumented variable of autoconf-2.1 if test $ac_cv_c_bigendian != no; then bytesex=b KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi" else bytesex=l KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi" fi #check how to do asm(".skip 16") #echo "CFLAGS=$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,$no_dynamic_default,default value for no_dynamic) dnl Checks for programs. AC_PROG_LN_S AC_PROG_INSTALL AC_CHECK_PROGS(TEXI2DVI,texi2dvi4a2ps texi2dvi) dnl MacOS X has a libtool that does something else AC_CHECK_PROGS(GNU_LIBTOOL,"glibtool --tag=CC" libtool) dnl Checks for library functions dnl This check is just for making later checks link with libm. dnl using sin here is no good idea since it is built-into gcc and typechecked AC_CHECK_LIB(m,asin) AC_CHECK_LIB(ltdl,lt_dlinit) if test -n "$GNU_LIBTOOL" -a $ac_cv_lib_ltdl_lt_dlinit = yes; then build_libcc_named=build-libcc-named else build_libcc_named="" AC_MSG_WARN([No GNU_LIBTOOL found, skip pre-building libcc-based libraries]) fi AC_SUBST(build_libcc_named) if test -z "$GNU_LIBTOOL"; then AC_MSG_WARN([No GNU_LIBTOOL found, using "libtool" as name.]) AC_MSG_WARN([libcc.fs won't work until you have installed (GNU) libtool.]) GNU_LIBTOOL=libtool fi #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_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],[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 alloca.h wchar.h) AC_FUNC_FNMATCH test $ac_cv_func_fnmatch_works = yes || AC_LIBOBJ(fnmatch) AC_CHECK_FUNCS(mmap sysconf getpagesize wcwidth) AM_PATH_LISPDIR kernel_fi=kernl${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) AC_CONFIG_FILES([ Makefile Makedist gforthmi vmgen machpc.fs envos.fs preforth engine/Makefile 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 $srcdir/mkinstalldirs arch/$machine ln -sf ../../../engine/config.h ../../../engine/libcc.h include/gforth/$PACKAGE_VERSION]], [PACKAGE_VERSION=$PACKAGE_VERSION machine=$machine]) AC_OUTPUT