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[configury patch] Move --enable-languages logic to the toplevel
- From: Bonzini <bonzini at gnu dot org>
- To: gcc-patches at gcc dot gnu dot org, neroden at twcny dot rr dot com
- Date: Mon, 1 Mar 2004 05:10:04 -0500
- Subject: [configury patch] Move --enable-languages logic to the toplevel
Updated version of the patch to move detection of the Ada compiler
to the toplevel.
See also http://gcc.gnu.org/ml/gcc/2004-02/msg00755.html
Tested in gcc and binutils trees. Ok for mainline? If so, would you
please commit it for me to both gcc and src, since I do not have CVS
access to the latter?
Paolo
2004-03-01 Paolo Bonzini <bonzini@gnu.org>
PR ada/14131
Move language detection to the toplevel.
* configure.in: Find default values for the tools as
soon as possible. Disable ada if GNAT is not found.
Emit error message about missing languages. Expand
--enable-languages=all for the gcc subdirectory.
* gcc/configure.ac: Remove code to detect languages,
it now lives exclusively in the toplevel.
* gcc/aclocal.m4 (gcc_AC_PROG_GNAT): Move...
* config/acx.m4 (ACX_PROG_GNAT): ... here.
* gcc/ada/config-lang.in: Build by default.
Index: configure.in
===================================================================
RCS file: /cvs/gcc/gcc/configure.in,v
retrieving revision 1.270
diff -u -r1.270 configure.in
--- configure.in 11 Feb 2004 17:31:24 -0000 1.270
+++ configure.in 1 Mar 2004 10:04:06 -0000
@@ -744,97 +744,276 @@
*target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
esac
+if test "${build}" != "${host}" ; then
+ # If we are doing a Canadian Cross, in which the host and build systems
+ # are not the same, we set reasonable default values for the tools.
+
+ BISON=${BISON-bison}
+ CC=${CC-${host_alias}-gcc}
+ CFLAGS=${CFLAGS-"-g -O2"}
+ CXX=${CXX-${host_alias}-c++}
+ CXXFLAGS=${CXXFLAGS-"-g -O2"}
+ CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
+ CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
+ CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
+ GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
+ GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
+ BUILD_PREFIX=${build_alias}-
+ BUILD_PREFIX_1=${build_alias}-
+ MAKEINFO=${MAKEINFO-makeinfo}
+
+ if test -z "${YACC}" ; then
+ IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
+ for dir in $PATH; do
+ test -z "$dir" && dir=.
+ if test -f $dir/bison; then
+ YACC="bison -y"
+ break
+ fi
+ if test -f $dir/byacc; then
+ YACC=byacc
+ break
+ fi
+ if test -f $dir/yacc; then
+ YACC=yacc
+ break
+ fi
+ done
+ IFS="$save_ifs"
+ if test -z "${YACC}" ; then
+ YACC="bison -y"
+ fi
+ fi
+
+ if test -z "${LEX}" ; then
+ IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
+ for dir in $PATH; do
+ test -z "$dir" && dir=.
+ if test -f $dir/flex; then
+ LEX=flex
+ break
+ fi
+ if test -f $dir/lex; then
+ LEX=lex
+ break
+ fi
+ done
+ IFS="$save_ifs"
+ LEX=${LEX-flex}
+ fi
+
+else
+ # Set reasonable default values for some tools even if not Canadian.
+ # Of course, these are different reasonable default values, originally
+ # specified directly in the Makefile.
+ # We don't export, so that autoconf can do its job.
+ # Note that all these settings are above the fragment inclusion point
+ # in Makefile.in, so can still be overridden by fragments.
+ # This is all going to change when we autoconfiscate...
+
+ BISON="\$(USUAL_BISON)"
+ CC_FOR_BUILD="\$(CC)"
+ GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
+ BUILD_PREFIX=
+ BUILD_PREFIX_1=loser-
+ MAKEINFO="\$(USUAL_MAKEINFO)"
+ LEX="\$(USUAL_LEX)"
+ YACC="\$(USUAL_YACC)"
+
+ # If CC is still not set, try to get gcc.
+ cc_prog_is_gcc=
+ if test -z "${CC}" ; then
+ IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
+ for dir in $PATH; do
+ test -z "$dir" && dir=.
+ if test -f $dir/gcc; then
+ CC="gcc"
+ cc_prog_is_gcc=yes
+ echo 'void f(){}' > conftest.c
+ if test -z "`${CC} -g -c conftest.c 2>&1`"; then
+ CFLAGS=${CFLAGS-"-g -O2"}
+ CXXFLAGS=${CXXFLAGS-"-g -O2"}
+ else
+ CFLAGS=${CFLAGS-"-O2"}
+ CXXFLAGS=${CXXFLAGS-"-O2"}
+ fi
+ rm -f conftest*
+ break
+ fi
+ done
+ IFS="$save_ifs"
+ CC=${CC-cc}
+ else
+ # Determine if we are using gcc.
+ cat > conftest.c <<EOF
+#ifdef __GNUC__
+ yes;
+#endif
+EOF
+ if ${CC} -E conftest.c | grep yes >/dev/null 2>&1; then
+ cc_prog_is_gcc=yes
+ fi
+ rm -f conftest.c
+ if test -z "${CFLAGS}"; then
+ # Here CC is set but CFLAGS is not. Use a quick hack to use -O2 if CC
+ # is set to a version of gcc.
+ if test "$cc_prog_is_gcc" = yes; then
+ echo 'void f(){}' > conftest.c
+ if test -z "`${CC} -g -c conftest.c 2>&1`"; then
+ CFLAGS=${CFLAGS-"-g -O2"}
+ CXXFLAGS=${CXXFLAGS-"-g -O2"}
+ else
+ CFLAGS=${CFLAGS-"-O2"}
+ CXXFLAGS=${CXXFLAGS-"-O2"}
+ fi
+ rm -f conftest*
+ fi
+ fi
+ fi
+
+ # We must set the default linker to the linker used by gcc for the correct
+ # operation of libtool. If LD is not defined and we are using gcc, try to
+ # set the LD default to the ld used by gcc.
+ if test -z "$LD"; then
+ if test "$cc_prog_is_gcc" = yes; then
+ case $build in
+ *-*-mingw*)
+ gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
+ *)
+ gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
+ esac
+ case $gcc_prog_ld in
+ # Accept absolute paths.
+ [[\\/]* | [A-Za-z]:[\\/]*)]
+ LD="$gcc_prog_ld" ;;
+ esac
+ fi
+ fi
+
+ CXX=${CXX-"c++"}
+ CFLAGS=${CFLAGS-"-g"}
+ CXXFLAGS=${CXXFLAGS-"-g -O2"}
+fi
+
+ACX_PROG_GNAT
+
# Figure out what language subdirectories are present.
# Look if the user specified --enable-languages="..."; if not, use
# the environment variable $LANGUAGES if defined. $LANGUAGES might
# go away some day.
# NB: embedded tabs in this IF block -- do not untabify
-if test x"${enable_languages+set}" != xset; then
- if test x"${LANGUAGES+set}" = xset; then
- enable_languages="${LANGUAGES}"
- echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
+if test -d ${srcdir}/gcc; then
+ if test x"${enable_languages+set}" != xset; then
+ if test x"${LANGUAGES+set}" = xset; then
+ enable_languages="${LANGUAGES}"
+ echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
+ else
+ enable_languages=all
+ fi
else
- enable_languages=all
- fi
-else
- if test x"${enable_languages}" = x ||
- test x"${enable_languages}" = xyes;
- then
- echo configure.in: --enable-languages needs at least one language argument 1>&2
- exit 1
+ if test x"${enable_languages}" = x ||
+ test x"${enable_languages}" = xyes;
+ then
+ echo configure.in: --enable-languages needs at least one language argument 1>&2
+ exit 1
+ fi
fi
-fi
-enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
+ enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
-# First scan to see if an enabled language requires some other language.
-# We assume that a given config-lang.in will list all the language
-# front ends it requires, even if some are required indirectly.
-for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
- case ${lang_frag} in
- ..) ;;
- # The odd quoting in the next line works around
- # an apparent bug in bash 1.12 on linux.
- ${srcdir}/gcc/[[*]]/config-lang.in) ;;
- *)
- # From the config-lang.in, get $language, $lang_requires
- language=
- lang_requires=
- . ${lang_frag}
- for other in ${lang_requires} ; do
- case ,${enable_languages}, in
- *,$other,*) ;;
- *,all,*) ;;
- *,$language,*)
- echo " \`$other' language required by \`$language'; enabling" 1>&2
- enable_languages="${enable_languages},${other}"
- ;;
- esac
- done
- ;;
- esac
-done
+ # First scan to see if an enabled language requires some other language.
+ # We assume that a given config-lang.in will list all the language
+ # front ends it requires, even if some are required indirectly.
+ for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
+ case ${lang_frag} in
+ ..) ;;
+ # The odd quoting in the next line works around
+ # an apparent bug in bash 1.12 on linux.
+ ${srcdir}/gcc/[[*]]/config-lang.in) ;;
+ *)
+ # From the config-lang.in, get $language, $lang_requires
+ language=
+ lang_requires=
+ . ${lang_frag}
+ for other in ${lang_requires} ; do
+ case ,${enable_languages}, in
+ *,$other,*) ;;
+ *,all,*) ;;
+ *,$language,*)
+ echo " \`$other' language required by \`$language'; enabling" 1>&2
+ enable_languages="${enable_languages},${other}"
+ ;;
+ esac
+ done
+ ;;
+ esac
+ done
-for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
- case ${lang_frag} in
- ..) ;;
- # The odd quoting in the next line works around
- # an apparent bug in bash 1.12 on linux.
- ${srcdir}/gcc/[[*]]/config-lang.in) ;;
- *)
- # From the config-lang.in, get $language, $target_libs,
- # $lang_dirs, and $build_by_default
- language=
- target_libs=
- lang_dirs=
- build_by_default=
- . ${lang_frag}
- if test "x$language" = x ; then
- echo "${lang_frag} doesn't set \$language." 1>&2
- exit 1
- fi
- case ,${enable_languages}, in
- *,${language},*)
- # Language was explicitly selected; include it.
- add_this_lang=yes
- ;;
- *,all,*)
- # 'all' was selected; include 'default' languages.
- case ${build_by_default} in
- no) add_this_lang=no ;;
- *) add_this_lang=yes ;;
- esac
- ;;
- *) add_this_lang=no ;;
- esac
- case ${add_this_lang} in
- no)
+ new_enable_languages=c
+ missing_languages="`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `"
+
+ for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
+ case ${lang_frag} in
+ ..) ;;
+ # The odd quoting in the next line works around
+ # an apparent bug in bash 1.12 on linux.
+ ${srcdir}/gcc/[[*]]/config-lang.in) ;;
+ *)
+ # From the config-lang.in, get $language, $target_libs,
+ # $lang_dirs, and $build_by_default
+ language=
+ target_libs=
+ lang_dirs=
+ build_by_default=
+ . ${lang_frag}
+ # This is quite sensitive to the ordering of the case statement arms.
+ case ,${enable_languages},:${language}:${have_gnat}:${build_by_default} in
+ *::*:*)
+ echo "${lang_frag} doesn't set \$language." 1>&2
+ exit 1
+ ;;
+ *:ada:no:*)
+ # Ada was requested with no preexisting GNAT. Disable unconditionally.
+ add_this_lang=no
+ ;;
+ *,${language},*:*:*:*)
+ # Language was explicitly selected; include it.
+ add_this_lang=yes
+ ;;
+ *,all,*:*:*:no)
+ # 'all' was selected and this is not a default language; include it.
+ add_this_lang=no
+ ;;
+ *,all,*:*:*:*)
+ # 'all' was selected and this is a default language; include it.
+ add_this_lang=yes
+ ;;
+ *)
+ add_this_lang=no
+ ;;
+ esac
+ if test $add_this_lang = no; then
# Remove language-dependent dirs.
eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
- ;;
- esac
- ;;
- esac
-done
+ else
+ new_enable_languages="$new_enable_languages,$language"
+ missing_languages="`echo "$missing_languages" | sed "s/,$language,/,/"`"
+ fi
+ ;;
+ esac
+ done
+
+ missing_languages="`echo "$missing_languages" | sed -e s/^,// -e s/,$//`"
+ if test "x$missing_languages" != x; then
+ AC_MSG_ERROR([
+The following requested languages were not found: ${missing_languages}])
+ fi
+
+ if test "x$new_enable_languages" != "x$enable_languages"; then
+ echo The following languages will be built: ${new_enable_languages}
+ fi
+ enable_languages="$new_enable_languages"
+ ac_configure_args="`echo " $ac_configure_args" | sed -e 's/ --enable-languages=[[^ ]]*//' -e 's/$/ --enable-languages='"$enable_languages"/ `"
+fi
# Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
# $target_configdirs.
@@ -1356,157 +1535,6 @@
test -n "$DEFAULT_LEX" && break
done
-
-if test "${build}" != "${host}" ; then
- # If we are doing a Canadian Cross, in which the host and build systems
- # are not the same, we set reasonable default values for the tools.
-
- BISON=${BISON-bison}
- CC=${CC-${host_alias}-gcc}
- CFLAGS=${CFLAGS-"-g -O2"}
- CXX=${CXX-${host_alias}-c++}
- CXXFLAGS=${CXXFLAGS-"-g -O2"}
- CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
- CC_FOR_TARGET=${CC_FOR_TARGET-${target_alias}-gcc}
- CXX_FOR_TARGET=${CXX_FOR_TARGET-${target_alias}-c++}
- GCJ_FOR_TARGET=${GCJ_FOR_TARGET-${target_alias}-gcj}
- GCC_FOR_TARGET=${GCC_FOR_TARGET-${CC_FOR_TARGET-${target_alias}-gcc}}
- BUILD_PREFIX=${build_alias}-
- BUILD_PREFIX_1=${build_alias}-
- MAKEINFO=${MAKEINFO-makeinfo}
-
- if test -z "${YACC}" ; then
- IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
- for dir in $PATH; do
- test -z "$dir" && dir=.
- if test -f $dir/bison; then
- YACC="bison -y"
- break
- fi
- if test -f $dir/byacc; then
- YACC=byacc
- break
- fi
- if test -f $dir/yacc; then
- YACC=yacc
- break
- fi
- done
- IFS="$save_ifs"
- if test -z "${YACC}" ; then
- YACC="bison -y"
- fi
- fi
-
- if test -z "${LEX}" ; then
- IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
- for dir in $PATH; do
- test -z "$dir" && dir=.
- if test -f $dir/flex; then
- LEX=flex
- break
- fi
- if test -f $dir/lex; then
- LEX=lex
- break
- fi
- done
- IFS="$save_ifs"
- LEX=${LEX-flex}
- fi
-
-else
- # Set reasonable default values for some tools even if not Canadian.
- # Of course, these are different reasonable default values, originally
- # specified directly in the Makefile.
- # We don't export, so that autoconf can do its job.
- # Note that all these settings are above the fragment inclusion point
- # in Makefile.in, so can still be overridden by fragments.
- # This is all going to change when we autoconfiscate...
-
- BISON="\$(USUAL_BISON)"
- CC_FOR_BUILD="\$(CC)"
- GCC_FOR_TARGET="\$(USUAL_GCC_FOR_TARGET)"
- BUILD_PREFIX=
- BUILD_PREFIX_1=loser-
- MAKEINFO="\$(USUAL_MAKEINFO)"
- LEX="\$(USUAL_LEX)"
- YACC="\$(USUAL_YACC)"
-
- # If CC is still not set, try to get gcc.
- cc_prog_is_gcc=
- if test -z "${CC}" ; then
- IFS="${IFS= }"; save_ifs="$IFS"; IFS="${IFS}:"
- for dir in $PATH; do
- test -z "$dir" && dir=.
- if test -f $dir/gcc; then
- CC="gcc"
- cc_prog_is_gcc=yes
- echo 'void f(){}' > conftest.c
- if test -z "`${CC} -g -c conftest.c 2>&1`"; then
- CFLAGS=${CFLAGS-"-g -O2"}
- CXXFLAGS=${CXXFLAGS-"-g -O2"}
- else
- CFLAGS=${CFLAGS-"-O2"}
- CXXFLAGS=${CXXFLAGS-"-O2"}
- fi
- rm -f conftest*
- break
- fi
- done
- IFS="$save_ifs"
- CC=${CC-cc}
- else
- # Determine if we are using gcc.
- cat > conftest.c <<EOF
-#ifdef __GNUC__
- yes;
-#endif
-EOF
- if ${CC} -E conftest.c | grep yes >/dev/null 2>&1; then
- cc_prog_is_gcc=yes
- fi
- rm -f conftest.c
- if test -z "${CFLAGS}"; then
- # Here CC is set but CFLAGS is not. Use a quick hack to use -O2 if CC
- # is set to a version of gcc.
- if test "$cc_prog_is_gcc" = yes; then
- echo 'void f(){}' > conftest.c
- if test -z "`${CC} -g -c conftest.c 2>&1`"; then
- CFLAGS=${CFLAGS-"-g -O2"}
- CXXFLAGS=${CXXFLAGS-"-g -O2"}
- else
- CFLAGS=${CFLAGS-"-O2"}
- CXXFLAGS=${CXXFLAGS-"-O2"}
- fi
- rm -f conftest*
- fi
- fi
- fi
-
- # We must set the default linker to the linker used by gcc for the correct
- # operation of libtool. If LD is not defined and we are using gcc, try to
- # set the LD default to the ld used by gcc.
- if test -z "$LD"; then
- if test "$cc_prog_is_gcc" = yes; then
- case $build in
- *-*-mingw*)
- gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
- *)
- gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
- esac
- case $gcc_prog_ld in
- # Accept absolute paths.
- [[\\/]* | [A-Za-z]:[\\/]*)]
- LD="$gcc_prog_ld" ;;
- esac
- fi
- fi
-
- CXX=${CXX-"c++"}
- CFLAGS=${CFLAGS-"-g"}
- CXXFLAGS=${CXXFLAGS-"-g -O2"}
-fi
# FIXME Should this be done recursively ??? (Useful for e.g. gdbtest)
# Set up the list of links to be made.
Index: gcc/configure.ac
===================================================================
RCS file: /cvs/gcc/gcc/gcc/configure.ac,v
retrieving revision 2.19
diff -u -r2.19 configure.ac
--- gcc/configure.ac 29 Feb 2004 22:50:19 -0000 2.19
+++ gcc/configure.ac 1 Mar 2004 10:04:07 -0000
@@ -300,13 +300,6 @@
AC_COMPILE_CHECK_SIZEOF(__int64)
fi
-# -----------------
-# Find Ada compiler
-# -----------------
-
-# See if GNAT has been installed
-gcc_AC_PROG_GNAT
-
# ---------------------
# Warnings and checking
# ---------------------
@@ -613,6 +606,28 @@
[onestep=""])
AC_SUBST(onestep)
+# Sanity check enable_languages in case someone does not run the toplevel
+# configure # script.
+AC_ARG_ENABLE(languages,
+[ --enable-languages=LIST specify which front-ends to build],
+[case ,${enable_languages}, in
+ ,,|,yes,)
+ # go safe -- we cannot be much sure without the toplevel
+ # configure's
+ # analysis of which target libs are present and usable
+ enable_languages=c
+ ;;
+ *,all,*)
+ AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
+ ;;
+ *,c,*)
+ ;;
+ *)
+ enable_languages=c,${enable_languages}
+ ;;
+esac],
+[enable_languages=c])
+
# -------------------------
# Checks for other programs
# -------------------------
@@ -2651,131 +2666,6 @@
&& test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
[Define to PREFIX/include if cpp should also search that directory.])
-fi
-
-# Figure out what language subdirectories are present.
-# Look if the user specified --enable-languages="..."; if not, use
-# the environment variable $LANGUAGES if defined. $LANGUAGES might
-# go away some day.
-# NB: embedded tabs in this IF block -- do not untabify
-if test x"${enable_languages+set}" != xset; then
- if test x"${LANGUAGES+set}" = xset; then
- enable_languages="${LANGUAGES}"
- AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
-
- else
- enable_languages=all
- fi
-else
- if test x"${enable_languages}" = x \
- || test x"${enable_languages}" = xyes;
- then
- AC_MSG_ERROR([--enable-languages needs at least one language argument])
- fi
-fi
-enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
-
-# First scan to see if an enabled language requires some other language.
-# We assume that a given config-lang.in will list all the language
-# front ends it requires, even if some are required indirectly.
-for lang in ${srcdir}/*/config-lang.in
-do
- case $lang in
- # The odd quoting in the next line works around
- # an apparent bug in bash 1.12 on linux.
-changequote(,)dnl
- ${srcdir}/[*]/config-lang.in)
- ;;
- *)
- lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
- this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
- for other in $this_lang_requires
- do
- case ,${enable_languages}, in
- *,$other,*)
- ;;
- *,all,*)
- ;;
- *,$lang_alias,*)
- enable_languages="$enable_languages,$other"
- ;;
- esac
- done
- ;;
-changequote([,])dnl
- esac
-done
-
-expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
-found_languages=
-subdirs=
-for lang in ${srcdir}/*/config-lang.in
-do
- case $lang in
- # The odd quoting in the next line works around
- # an apparent bug in bash 1.12 on linux.
-changequote(,)dnl
- ${srcdir}/[*]/config-lang.in) ;;
- *)
- lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
- this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
- build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
- if test "x$lang_alias" = x
- then
- echo "$lang doesn't set \$language." 1>&2
- exit 1
- fi
- case ${build_by_default},${enable_languages}, in
- *,$lang_alias,*) add_this_lang=yes ;;
- no,*) add_this_lang=no ;;
- *,all,*) add_this_lang=yes ;;
- *) add_this_lang=no ;;
- esac
- found_languages="${found_languages} ${lang_alias}"
- if test x"${add_this_lang}" = xyes; then
- case $lang in
- ${srcdir}/ada/config-lang.in)
- if test x$have_gnat = xyes ; then
- subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
- fi
- ;;
- *)
- subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
- ;;
- esac
- fi
- ;;
-changequote([,])dnl
- esac
-done
-
-missing_languages=
-for expected_language in ${expected_languages} ..
-do
- if test "${expected_language}" != ..; then
- missing_language="${expected_language}"
- if test "${expected_language}" = "c" \
- || test "${expected_language}" = "all"; then
- missing_language=
- fi
- for found_language in ${found_languages} ..
- do
- if test "${found_language}" != ..; then
- if test "${expected_language}" = "${found_language}"; then
- missing_language=
- fi
- fi
- done
- if test "x${missing_language}" != x; then
- missing_languages="${missing_languages} ${missing_language}"
- fi
- fi
-done
-
-if test "x$missing_languages" != x; then
- AC_MSG_ERROR([
-The following requested languages were not found:${missing_languages}
-The following languages were available: c${found_languages}])
fi
# Find out what GC implementation we want, or may, use.
Index: gcc/aclocal.m4
===================================================================
RCS file: /cvs/gcc/gcc/gcc/aclocal.m4,v
retrieving revision 1.88
diff -u -r1.88 aclocal.m4
--- gcc/aclocal.m4 3 Jan 2004 18:59:32 -0000 1.88
+++ gcc/aclocal.m4 1 Mar 2004 10:04:08 -0000
@@ -295,41 +295,6 @@
AC_SUBST(INSTALL_DATA)dnl
])
-dnl Test for GNAT.
-dnl We require the gnatbind program, and a compiler driver that
-dnl understands Ada. We use the user's CC setting, already found.
-dnl
-dnl Sets the shell variable have_gnat to yes or no as appropriate, and
-dnl substitutes GNATBIND.
-AC_DEFUN([gcc_AC_PROG_GNAT],
-[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
-AC_REQUIRE([AC_PROG_CC])
-AC_CHECK_TOOL(GNATBIND, gnatbind, no)
-AC_CACHE_CHECK([whether compiler driver understands Ada],
- gcc_cv_cc_supports_ada,
-[cat >conftest.adb <<EOF
-procedure conftest is begin null; end conftest;
-EOF
-gcc_cv_cc_supports_ada=no
-# There is a bug in old released versions of GCC which causes the
-# driver to exit successfully when the appropriate language module
-# has not been installed. This is fixed in 2.95.4, 3.0.2, and 3.1.
-# Therefore we must check for the error message as well as an
-# unsuccessful exit.
-errors=`(${CC} -c conftest.adb) 2>&1 || echo failure`
-if test x"$errors" = x; then
- gcc_cv_cc_supports_ada=yes
- break
-fi
-rm -f conftest.*])
-
-if test x$GNATBIND != xno && test x$gcc_cv_supports_ada != xno; then
- have_gnat=yes
-else
- have_gnat=no
-fi
-])
-
dnl GCC_PATH_PROG(VARIABLE, PROG-TO-CHECK-FOR [, VALUE-IF-NOT-FOUND [, PATH]])
dnl like AC_PATH_PROG but use other cache variables
AC_DEFUN([GCC_PATH_PROG],
Index: config/acx.m4
===================================================================
RCS file: /cvs/gcc/gcc/config/acx.m4,v
retrieving revision 1.4
diff -u -r1.4 acx.m4
--- config/acx.m4 25 Sep 2003 14:27:52 -0000 1.4
+++ config/acx.m4 1 Mar 2004 10:04:08 -0000
@@ -155,3 +155,38 @@
[AC_REQUIRE([AC_PROG_CPP])dnl
m4_define([AC_CHECK_HEADER],m4_defn([_AC_CHECK_HEADER_OLD]))
ac_c_preproc_warn_flag=yes])# AC_PROG_CPP_WERROR
+
+dnl Test for GNAT.
+dnl We require the gnatbind program, and a compiler driver that
+dnl understands Ada. We use the user's CC setting, already found.
+dnl
+dnl Sets the shell variable have_gnat to yes or no as appropriate, and
+dnl substitutes GNATBIND.
+AC_DEFUN([ACX_PROG_GNAT],
+[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
+AC_REQUIRE([AC_PROG_CC])
+AC_CHECK_TOOL(GNATBIND, gnatbind, no)
+AC_CACHE_CHECK([whether compiler driver understands Ada],
+ acx_cv_cc_gcc_supports_ada,
+[cat >conftest.adb <<EOF
+procedure conftest is begin null; end conftest;
+EOF
+acx_cv_cc_gcc_supports_ada=no
+# There is a bug in old released versions of GCC which causes the
+# driver to exit successfully when the appropriate language module
+# has not been installed. This is fixed in 2.95.4, 3.0.2, and 3.1.
+# Therefore we must check for the error message as well as an
+# unsuccessful exit.
+errors=`(${CC} -c conftest.adb) 2>&1 || echo failure`
+if test x"$errors" = x; then
+ acx_cv_cc_gcc_supports_ada=yes
+ break
+fi
+rm -f conftest.*])
+
+if test x$GNATBIND != xno && test x$acx_cv_gcc_supports_ada != xno; then
+ have_gnat=yes
+else
+ have_gnat=no
+fi
+])
Index: gcc/ada/config-lang.in
===================================================================
RCS file: /cvs/gcc/gcc/gcc/ada/config-lang.in,v
retrieving revision 1.11
diff -u -r1.11 config-lang.in
--- gcc/ada/config-lang.in 13 Feb 2004 18:42:09 -0000 1.11
+++ gcc/ada/config-lang.in 1 Mar 2004 10:04:08 -0000
@@ -39,9 +39,3 @@
outputs=ada/Makefile
target_libs="target-libada"
-
-# The logic for determining whether there is a bootstrap Ada compiler
-# available needs to be moved from gcc/configure to the toplevel configure,
-# so that target-libada is not built when there is no bootstrap Ada compiler.
-# Until then disable building this language by default.
-build_by_default=no