noconfigdirs="$noconfigdirs target-libffi"
;;
powerpc-*-aix*)
- # copied from rs6000-*-* entry
- noconfigdirs="$noconfigdirs target-libffi"
;;
rs6000-*-aix*)
- noconfigdirs="$noconfigdirs target-libffi"
;;
ft32-*-*)
noconfigdirs="$noconfigdirs target-libffi"
# Disable the go frontend on systems where it is known to not work. Please keep
# this in sync with contrib/config-list.mk.
case "${target}" in
-*-*-darwin* | *-*-cygwin* | *-*-mingw* | *-*-aix*)
+*-*-darwin* | *-*-cygwin* | *-*-mingw*)
unsupported_languages="$unsupported_languages go"
;;
esac
*-*-cygwin* | *-*-mingw*)
noconfigdirs="$noconfigdirs target-libgo"
;;
- *-*-aix*)
- noconfigdirs="$noconfigdirs target-libgo"
- ;;
esac
fi
extra_linker_plugin_flags=)
AC_SUBST(extra_linker_plugin_flags)
+# Enable --enable-host-shared.
+# Checked early to determine whether jit is an 'all' language
+AC_ARG_ENABLE(host-shared,
+[AS_HELP_STRING([--enable-host-shared],
+ [build host code as shared libraries])],
+[host_shared=$enableval], [host_shared=no])
+AC_SUBST(host_shared)
# By default, C and C++ are the only stage 1 languages.
stage1_languages=,c,
enable_languages="${LANGUAGES}"
echo configure.ac: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
else
- enable_languages=all
+ enable_languages=default
fi
else
if test x"${enable_languages}" = x ||
language=
lang_requires=
lang_requires_boot_languages=
- . ${lang_frag}
+ # set srcdir during sourcing lang_frag to the gcc dir.
+ # Sadly overriding srcdir on the . line doesn't work in plain sh as it
+ # polutes this shell
+ saved_srcdir=${srcdir}
+ srcdir=${srcdir}/gcc . ${lang_frag}
+ srcdir=${saved_srcdir}
for other in ${lang_requires} ${lang_requires_boot_languages}; do
case ,${enable_languages}, in
*,$other,*) ;;
+ *,default,*) ;;
*,all,*) ;;
*,$language,*)
echo " \`$other' language required by \`$language'; enabling" 1>&2
if test "$other" != "c"; then
case ,${enable_stage1_languages}, in
*,$other,*) ;;
+ *,default,*) ;;
*,all,*) ;;
*)
case ,${enable_languages}, in
esac
fi
- missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
+ missing_languages=`echo ",$enable_languages," | sed -e s/,default,/,/ -e s/,all,/,/ -e s/,c,/,/ `
potential_languages=,c,
enabled_target_libs=
subdir_requires=
boot_language=no
build_by_default=yes
- . ${lang_frag}
+ # set srcdir during sourcing. See above about save & restore
+ saved_srcdir=${srcdir}
+ srcdir=${srcdir}/gcc . ${lang_frag}
+ srcdir=${saved_srcdir}
if test x${language} = x; then
echo "${lang_frag} doesn't set \$language." 1>&2
exit 1
fi
add_this_lang=no
- case ,${enable_languages}, in
- *,${language},*)
- # Language was explicitly selected; include it
- # unless it is C, which is enabled by default.
- if test "$language" != "c"; then
+ # C is always enabled, so no need to add it again
+ if test "$language" != "c"; then
+ case ,${enable_languages}, in
+ *,${language},*)
+ # Language was explicitly selected; include it
add_this_lang=yes
- fi
- ;;
- *,all,*)
- # 'all' was selected, select it if it is a default language
- if test "$language" != "c"; then
+ ;;
+ *,all,*)
+ # All languages are enabled
+ add_this_lang=all
+ ;;
+ *,default,*)
+ # 'default' was selected, select it if it is a default language
add_this_lang=${build_by_default}
- fi
- ;;
- esac
+ ;;
+ esac
+ fi
# Disable languages that need other directories if these aren't available.
for i in $subdir_requires; do
test -f "$srcdir/gcc/$i/config-lang.in" && continue
- case ,${enable_languages}, in
- *,${language},*)
+ case ${add_this_lang} in
+ yes)
# Specifically requested language; tell them.
AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
;;
+ all)
+ AC_MSG_WARN([The gcc/$i directory contains parts of $language but is missing])
+ add_this_lang=unsupported
+ ;;
*)
# Silently disable.
add_this_lang=unsupported
done
# Disable Ada if no preexisting GNAT is available.
- case ,${enable_languages},:${language}:${have_gnat} in
- *,${language},*:ada:no)
+ case ${add_this_lang}:${language}:${have_gnat} in
+ yes:ada:no)
# Specifically requested language; tell them.
AC_MSG_ERROR([GNAT is required to build $language])
;;
+ all:ada:no)
+ AC_MSG_WARN([GNAT is required to build $language])
+ add_this_lang=unsupported
+ ;;
*:ada:no)
# Silently disable.
add_this_lang=unsupported
;;
esac
- # Disable a language that is unsupported by the target.
- case " $unsupported_languages " in
- *" $language "*)
+ # Disable jit if -enable-host-shared not specified
+ case ${add_this_lang}:${language}:${host_shared} in
+ yes:jit:no)
+ # PR jit/64780: explicitly specify --enable-host-shared
+ AC_MSG_ERROR([
+Enabling language "jit" requires --enable-host-shared.
+
+--enable-host-shared typically slows the rest of the compiler down by
+a few %, so you must explicitly enable it.
+
+If you want to build both the jit and the regular compiler, it is often
+best to do this via two separate configure/builds, in separate
+directories, to avoid imposing the performance cost of
+--enable-host-shared on the regular compiler.])
+ ;;
+ all:jit:no)
+ AC_MSG_WARN([--enable-host-shared required to build $language])
+ add_this_lang=unsupported
+ ;;
+ *:jit:no)
+ # Silently disable.
+ add_this_lang=unsupported
+ ;;
+ esac
+
+ # Disable a language that is unsupported by the target.
+ case "${add_this_lang}: $unsupported_languages " in
+ no:*) ;;
+ unsupported:*) ;;
+ *:*" $language "*)
+ AC_MSG_WARN([${language} not supported for this target])
add_this_lang=unsupported
;;
esac
noconfigdirs="$noconfigdirs $lang_dirs"
potential_languages="${potential_languages}${language},"
;;
- yes)
+ all|yes)
new_enable_languages="${new_enable_languages}${language},"
potential_languages="${potential_languages}${language},"
missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
nios2-*-elf*)
target_makefile_frag="config/mt-nios2-elf"
;;
+ *-*-linux-android*)
+ target_makefile_frag="config/mt-android"
+ ;;
*-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-kopensolaris*-gnu)
target_makefile_frag="config/mt-gnu"
;;
# Enable -Werror in bootstrap stage2 and later.
AC_ARG_ENABLE(werror,
[AS_HELP_STRING([--enable-werror],
- [enable -Werror in bootstrap stage2 and later])], [], [])
+ [enable -Werror in bootstrap stage2 and later])],
+[
case ${enable_werror} in
yes) stage2_werror_flag="--enable-werror-always" ;;
*) stage2_werror_flag="" ;;
esac
-
+],
+[
if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
case $BUILD_CONFIG in
bootstrap-debug)
stage2_werror_flag="--enable-werror-always" ;;
esac
fi
+])
AC_SUBST(stage2_werror_flag)
-# Enable --enable-host-shared.
-AC_ARG_ENABLE(host-shared,
-[AS_HELP_STRING([--enable-host-shared],
- [build host code as shared libraries])],
-[host_shared=$enableval], [host_shared=no])
-AC_SUBST(host_shared)
-
-# PR jit/64780: Require the user to explicitly specify
-# --enable-host-shared if the jit is enabled, hinting
-# that they might want to do a separate configure/build of
-# the jit, to avoid users from slowing down the rest of the
-# compiler by enabling the jit.
-if test ${host_shared} = "no" ; then
- case "${enable_languages}" in
- *jit*)
- AC_MSG_ERROR([
-Enabling language "jit" requires --enable-host-shared.
-
---enable-host-shared typically slows the rest of the compiler down by
-a few %, so you must explicitly enable it.
-
-If you want to build both the jit and the regular compiler, it is often
-best to do this via two separate configure/builds, in separate
-directories, to avoid imposing the performance cost of
---enable-host-shared on the regular compiler.])
- ;;
- *)
- ;;
- esac
-fi
-
# Specify what files to not compare during bootstrap.
compare_exclusions="gcc/cc*-checksum\$(objext) | gcc/ada/*tools/*"
projects / gcc.git / blobdiff