--- gforth/configure.in 1995/02/02 18:13:01 1.9 +++ gforth/configure.in 2000/07/20 13:29:43 1.67 @@ -1,5 +1,33 @@ dnl Process this file with autoconf to produce a configure script. -AC_INIT(engine.c) + +#Copyright (C) 1995,1996,1997,1998 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., 675 Mass Ave, Cambridge, MA 02139, USA. + +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,0.4.9-20000720) +#snapshots have numbers major.minor.release-YYYYMMDD +#note that lexicographic ordering bust be heeded. +#I.e., 0.4.1-YYYYMMDD must not exist before 0.4.1! +AM_CONFIG_HEADER(engine/config.h) +#AM_CYGWIN32 AC_ARG_ENABLE(force-reg, [ --enable-force-reg Use explicit register declarations if they appear in @@ -21,118 +49,327 @@ AC_ARG_ENABLE(indirect-threaded, AC_DEFINE(INDIRECT_THREADED)) AC_ARG_WITH(debug, -[ --with-debug specifys 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 (default) + --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 + +AC_PROG_CC -AC_SUBST(GCCLDFLAGS) +if test "$GCC" = "yes" +then + echo "Fine, gcc is available" +else + cat <<'EOF' +Gforth requires GCC-2.0 or higher (it uses GNU C extensions). +It does not work with other C compilers. Please install the GNU C compiler, +and try again (or search for a binary distribution for your platform). +EOF + exit 1 +fi + +AC_SUBST(CC) AC_SUBST(DEBUGFLAG) -wordsize=32 +dnl the following macro produces a warning with autoconf-2.1 +AC_CHECK_SIZEOF(char *) +case "$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_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 + ;; + $ac_cv_sizeof_long_long) + ac_cv_int_type_cell="long long" + ;; +esac +if test "$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,$ac_cv_int_type_cell) + +ac_cv_int_type_double_cell=none +case `expr 2 '*' "$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 + ;; + $ac_cv_sizeof_long_long) + ac_cv_int_type_double_cell="long long" + ;; +esac +if test "$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="$LIBOBJS dblsub.o" + AC_DEFINE(BUGGY_LONG_LONG) +else + AC_DEFINE_UNQUOTED(DOUBLE_CELL_TYPE,$ac_cv_int_type_double_cell) +fi + +AC_MSG_CHECKING([whether the linker accepts -export-dynamic]) +OLDLDFLAGS=$LDFLAGS +LDFLAGS="$LDFLAGS -export-dynamic" +AC_TRY_LINK(,,ac_export_dynamic=yes,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 hppa*) - mach_h=hppa - LIBOBJS="cache.o" - LDFLAGS="-Xlinker -N" - LIBS="-L/lib/pa1.1/" + machine=hppa + $srcdir/mkinstalldirs arch/hppa + LIBOBJS="$LIBOBJS ../arch/hppa/cache.o" + LDFLAGS="$LDFLAGS -Xlinker -N" + LIBS="$LIBS -L/lib/pa1.1/" + if test "${enable_direct_threaded+set}" = "" + then + AC_DEFINE(DIRECT_THREADED) + fi ;; sparc*) - mach_h=sparc + machine=sparc + ;; + i386) + machine=386 + CFLAGS="$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 "${enable_indirect_threaded+set}" = "" + then + echo "Using direct threaded code on 486" + AC_DEFINE(DIRECT_THREADED) + fi + ;; + i586) + machine=386 + CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem" + CFLAGS_1="$CFLAGS" + CFLAGS="$CFLAGS -mpentium" + AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486") + if test "${enable_direct_threaded+set}" = "" \ + -a "${enable_indirect_threaded+set}" = "" + then + echo "Using indirect threaded code on Pentium/K5/K6" + AC_DEFINE(INDIRECT_THREADED) + fi ;; - i386|i486|i586) - mach_h=386 - CFLAGS="-fforce-mem -fforce-addr -fomit-frame-pointer" - #!! direct/indirect threading switch - #!! -m486 flag + i686) + machine=386 + CFLAGS="$CFLAGS -fomit-frame-pointer -fforce-addr -fforce-mem" + CFLAGS_1="$CFLAGS" + CFLAGS="$CFLAGS -mpentiumpro" + AC_TRY_COMPILE(,,,CFLAGS="$CFLAGS_1 -m486") + if test "${enable_direct_threaded+set}" = "" \ + -a "${enable_indirect_threaded+set}" = "" + then + echo "Using direct threaded code on Athlon/PPro/Pentium II/Pentium III" + AC_DEFINE(DIRECT_THREADED) + fi ;; - m68*) - mach_h=m68k + m68k) + machine=m68k + CFLAGS="$CFLAGS -fomit-frame-pointer" + if test "$host_os" = "nextstep3" + then + LIBOBJS="$LIBOBJS termios.o" + fi ;; mips*) - mach_h=mips + machine=mips #link text and data segment into the same 256M region! - GCCLDFLAGS="-Xlinker -T -Xlinker 10000000 -Xlinker -D -Xlinker 10400000" - #this works on Ultrix, but not on Irix - #for now use indirect threading under Irix + AC_MSG_CHECKING([whether the linker accepts -T]) + OLDLDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS -Xlinker -T -Xlinker 10000000" + AC_TRY_LINK(,,ac_link_mips_t=yes,ac_link_mips_t=no) + test $ac_link_mips_t = yes||LDFLAGS=$OLDLDFLAGS + AC_MSG_RESULT($ac_link_mips_t) + test $ac_link_mips_t = yes||(echo cannot link text and data into same 256M region, using indirect threading; AC_DEFINE(INDIRECT_THREADED)) + AC_MSG_CHECKING([whether the linker accepts -D]) + OLDLDFLAGS=$LDFLAGS + LDFLAGS="$LDFLAGS -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 + AC_MSG_RESULT($ac_link_mips_d) ;; alpha*) - mach_h=alpha - wordsize=64 - echo Very Preliminary Support for Alpha!!! + machine=alpha + #full IEEE FP support for more uniformity across platforms: + CFLAGS="$CFLAGS -mieee" + ;; + power*) + machine=power + $srcdir/mkinstalldirs arch/power + AC_CHECK_FUNC(_sync_cache_range,true,LIBOBJS="$LIBOBJS ../arch/power/_sync_cache_range.o") + #link text segment into first 32MB + AC_MSG_CHECKING([whether the linker accepts --script=arch/power/elf32ppc.x]) + OLDLDFLAGS=$LDFLAGS + #the -L../$srcdir helps when $srcdir is relative + LDFLAGS="$LDFLAGS -L$srcdir -L../$srcdir -Xlinker --script=$srcdir/arch/power/elf32ppc.x" + AC_TRY_LINK(,,ac_link_script=yes,ac_link_script=no) + test $ac_link_script = yes||LDFLAGS=$OLDLDFLAGS + AC_MSG_RESULT($ac_link_script) + AC_MSG_CHECKING([whether the code is in the first 32MB]) + AC_TRY_RUN([main(){label: exit(((unsigned long)&&label)>32000000UL);}],ac_code_under_32=yes,ac_code_under_32=no,ac_code_under_32=no) + AC_MSG_RESULT($ac_code_under_32) + test $ac_code_under_32 = yes||(AC_MSG_WARN([Using indirect threading; please contact us (bug-gforth@gnu.org)]); AC_DEFINE(INDIRECT_THREADED)) ;; *) echo "No direct threading support for $host_cpu, using indirect threading." - echo "Using a generic 32-bit machine description. It will only work if char * AND" - echo "long values have 32 bits." + echo "Using a generic machine description." echo "I'll assume that C floats and doubles are represented by IEEE single and" echo "double numbers. If this is not so, SF@ etc. will not work correctly." - mach_h=32bit + echo "FLUSH-ICACHE will do nothing, so END-CODE may not work properly!" + machine=generic +esac +AC_SUBST(host) +AC_SUBST(ENGINE_FLAGS) + +AC_CHECK_PROG(asm_fs,asm.fs,arch/$machine/asm.fs,,$srcdir/arch/$machine) +AC_SUBST(asm_fs) + +AC_CHECK_PROG(disasm_fs,disasm.fs,arch/$machine/disasm.fs,,$srcdir/arch/$machine) +AC_SUBST(disasm_fs) + +case "$host_os" in + *win32) + EXE=".exe" + ;; + *) + EXE="" + ;; esac +AC_SUBST(EXE) 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(GFORTHDITC_EXE) +GFORTHDITC_EXE="" + +PATHSEP=":" +AC_SUBST(PATHSEP) +AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP') + +AC_SUBST(FORTHSIZES) 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 gforth.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 $ac_cv_c_bigendian = yes; then bytesex=b - KERNAL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi" + KERNEL="kernl16b.fi kernl16l.fi kernl32b.fi kernl32l.fi kernl64b.fi kernl64l.fi" else bytesex=l - KERNAL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi" + KERNEL="kernl16l.fi kernl16b.fi kernl32l.fi kernl32b.fi kernl64l.fi kernl64b.fi" fi dnl Checks for programs. AC_PROG_LN_S -AC_PROG_INSTALL +dnl AM_PROG_INSTALL #performed by AM_INIT_AUTOMAKE dnl Checks for library functions dnl This check is just for making later checks link with libm. dnl using sin here is no good idea since it is built-into gcc and typechecked AC_CHECK_LIB(m,asin) -AC_FUNC_MEMCMP -AC_REPLACE_FUNCS(memmove strtoul) -AC_CHECK_FUNC(getopt_long,getopt_long="",getopt_long="getopt.o getopt1.o") -AC_SUBST(getopt_long) -AC_CHECK_FUNCS(rint expm1 log1p pow10) +AC_CHECK_LIB(dl,dlopen) +if test "$host_os" != "nextstep3" +then + AC_FUNC_MEMCMP +fi +AC_REPLACE_FUNCS(memmove strtoul pow10 strerror strsignal atanh) +AC_CHECK_FUNCS(dlopen sys_siglist) +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) 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 $ac_cv_func_fnmatch_works = yes || LIBOBJS="$LIBOBJS fnmatch.o" +AC_CHECK_FUNCS(mmap sysconf getpagesize) +AM_PATH_LISPDIR -gforth_fi=kernl${wordsize}${bytesex}.fi -AC_SUBST(gforth_fi) +kernel_fi=kernl${wordsize}${bytesex}.fi +AC_SUBST(kernel_fi) + +dnl replace srource directory by absolute value +if test $srcdir = "."; then srcdir=`pwd` +fi -AC_LINK_FILES(${mach_h}.h $gforth_fi,machine.h gforth.fi) -AC_OUTPUT(Makefile) +AC_SUBST(machine) +dnl AC_LINK_FILES(arch/$machine,arch/machine) #no longer needed +AC_OUTPUT([ +Makefile +Makedist +gforthmi +engine/Makefile +doc/version.texi ], +echo timestamp > stamp-h +chmod +x gforthmi +test -d kernel||mkdir kernel)