gcc/ChangeLog:

[pf3gnuchains/gcc-fork.git] / configure

diff --git a/configure b/configure
index df2b37f..667b514 100755 (executable)
--- a/configure
+++ b/configure
@@ -2743,6 +2743,11 @@ fi
 # No prefix.
 target_subdir=${target_noncanonical}
 
+# Be sure to cover against remnants of an in-tree build.
+if test $srcdir != .  && test -d $srcdir/host-${host_noncanonical}; then
+  as_fn_error "building out of tree but $srcdir contains host-${host_noncanonical}.
+Use a pristine source tree when building in a separate tree" "$LINENO" 5
+fi
 
 # Skipdirs are removed silently.
 skipdirs=
@@ -5819,10 +5824,13 @@ if test -d ${srcdir}/gcc; then
            new_enable_languages="${new_enable_languages}${language},"
             potential_languages="${potential_languages}${language},"
            missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
-           case ${boot_language} in
-             yes)
+           case "${boot_language}:,$enable_stage1_languages," in
+             yes:* | *:*,$language,* | *:*,yes, | *:*,all,)
                # Add to (comma-separated) list of stage 1 languages.
-               stage1_languages="${stage1_languages}${language},"
+               case ",$stage1_languages," in
+                 *,$language,* | ,yes, | ,all,) ;;
+                 *) stage1_languages="${stage1_languages}${language}," ;;
+               esac
                # We need to bootstrap any supporting libraries.
                bootstrap_target_libs="${bootstrap_target_libs}${target_libs},"
                ;;
@@ -6581,6 +6589,13 @@ case ",$enable_languages,:$ENABLE_BUILD_WITH_CXX:$enable_bootstrap" in
     ;;
 esac
 
+case "$enable_bootstrap:$ENABLE_GOLD: $configdirs :,$stage1_languages," in
+  yes:yes:*\ gold\ *:*,c++,*) ;;
+  yes:yes:*\ gold\ *:*)
+    as_fn_error "in a combined tree, bootstrapping with --enable-gold requires c++ in stage1_languages" "$LINENO" 5
+    ;;
+esac
+
 # Adjust the toplevel makefile according to whether bootstrap was selected.
 case $enable_bootstrap in
   yes)