--- gforth/configure.in 2005/08/21 22:09:13 1.152 +++ gforth/configure.in 2007/03/19 12:54:41 1.177 @@ -1,6 +1,6 @@ dnl Process this file with autoconf to produce a configure script. -#Copyright (C) 1995,1996,1997,1998,2000,2003,2004 Free Software Foundation, Inc. +#Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006 Free Software Foundation, Inc. #This file is part of Gforth. @@ -21,12 +21,12 @@ dnl Process this file with autoconf to p dnl We use some automake macros here, dnl but don't use automake for creating Makefile.in -AC_INIT([gforth],[0.6.2-20030910],[https://savannah.gnu.org/bugs/?func=addbug&group=gforth]) +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="September 10, 2003" +UPDATED="April 09, 2006" AC_SUBST(UPDATED) AC_CONFIG_HEADERS(engine/config.h) @@ -53,17 +53,6 @@ AC_ARG_ENABLE(force-ll, 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 @@ -97,10 +86,25 @@ dnl --without-peephole disables peepho 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(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(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)]) @@ -112,7 +116,9 @@ AC_ARG_VAR(ac_cv_sizeof_int128_t, [sizeo 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(skip_code, [assembly code for skipping 16 bytes of code]) +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)]) #set up feature test macros, so the tests get them right: # turn on all POSIX, SUSv3, and GNU features if available @@ -139,15 +145,16 @@ test "$GCC" = "yes" || AC_MSG_ERROR(Gfor AC_SUBST(CC) AC_SUBST(DEBUGFLAG) +AC_SUBST(EC_MODE) +#this is used to disable some (not generally essential) part of the +#Makefile that some makes don't grok. It would be better to test for +#this specific Makefile feature than the make version. AC_MSG_CHECKING(make type) -make_type=`make -v 2>&1|grep 'ake version'|sed 's/ version .*//'` - +make_type=`make -n -v 2>&1|grep 'ake'|sed 's/ake .*/ake/'` GNUMAKE='#' test "$make_type" = "GNU Make" && GNUMAKE='' - AC_MSG_RESULT($make_type) - AC_SUBST(GNUMAKE) AC_MSG_CHECKING([whether the linker accepts -export-dynamic]) @@ -166,10 +173,16 @@ case "$host_cpu" in arm*) machine=arm CFLAGS="$CFLAGS -fomit-frame-pointer" - if test -z $no_dynamic_default; then + if test -z $arm_cacheflush; then no_dynamic_default=1 + arm_cacheflush=arch/arm/cacheflush0 AC_MSG_WARN([No I-cache flush code known, disabling dynamic native code generation]) fi + AC_LIBSOURCES([../arch/arm/cacheflush0, ../arch/arm/cacheflush1, ../arch/arm/cacheflush2]) + AC_LIBOBJ(../$arm_cacheflush) + #longer skipcodes lead to problems on ARM, and it uses + #only 4-byte alignment anyway + test "$skipcode" || skipcode="nop" ;; hppa*) machine=hppa @@ -245,7 +258,9 @@ case "$host_cpu" in $srcdir/mkinstalldirs arch/power AC_CHECK_FUNC(_sync_cache_range,[true],[AC_LIBOBJ(../arch/power/_sync_cache_range)]) #long long is broken on (at least) gcc-2.95.* for PPC - test x$ac_cv_sizeof_long_long = x && ac_cv_sizeof_long_long=0 + test x$ac_cv_sizeof_long_long = x && + ($CC -v 2>&1 |grep -q 'gcc version 2.95') && + ac_cv_sizeof_long_long=0 ;; *) AC_MSG_WARN([Using a generic machine description]) @@ -264,6 +279,14 @@ test x$STACK_CACHE_DEFAULT_FAST = x && S 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, $GCC_PR15242_WORKAROUND, + [force (1) or forbid (0) use of a workaround for a gcc performance bug]) + +dnl AC_DEFINE(GCC_PR15242_WORKAROUND,,[Define if you want to get dynamic code +dnl generation on gccs affected by PR15242]) + + if test "${enable_force_ll+set}" = set; then ac_includes_default="$ac_includes_default #include \"arch/generic/128bit.h\"" @@ -320,6 +343,62 @@ esac AC_MSG_RESULT($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 @@ -436,7 +515,8 @@ 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|cygwin) + *win32*) + # !!!FIXME!!! problems with cygwin and ';' as path separator DIRSEP="\\\\" PATHSEP=";" #we want the builtins of command.com/cmd.exe and its @@ -467,6 +547,10 @@ AC_DEFINE_UNQUOTED(PATHSEP,'$PATHSEP',[a AC_SUBST(DEFAULTSYSTEMPREFIX) AC_DEFINE_UNQUOTED(DEFAULTSYSTEMPREFIX,"$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(GFORTH_EXE) GFORTH_EXE="" @@ -513,8 +597,8 @@ else fi #check how to do asm(".skip 16") -echo "CFLAGS=$CFLAGS" -echo "ac_link=$ac_link" +#echo "CFLAGS=$CFLAGS" +#echo "ac_link=$ac_link" AC_MSG_CHECKING([if and how we can waste code space]) if test -z "$skipcode"; then skipcode=no @@ -559,12 +643,31 @@ else AC_DEFINE_UNQUOTED(SKIP16,asm("$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 Checks for library functions dnl This check is just for making later checks link with libm. @@ -630,11 +733,14 @@ Makedist gforthmi vmgen machpc.fs +envos.fs engine/Makefile -doc/version.texi ]) +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