Stefan Fiedler:

package/base/gcc/gcc.conf

@@ -89,7 +89,7 @@ elif [ $stagelevel -eq 0 ] ; then
 	configprefix=""
 	confopt="--prefix=${CLFS}/$cross_tools \
 	    --host=${CLFS_HOST} --target=${CLFS_TARGET} \$extraconfopt"
-	var_append extraconfopt " \
+	var_append extraconfopt " " " \
 	    --with-sysroot=${CLFS} --disable-nls --disable-shared \
 	    --enable-languages=c"
 	if [ $pkg_gcc_version -ge 43 ]; then
@@ -103,9 +103,9 @@ elif [ $stagelevel -eq 1 ] ; then
 	configprefix=""
 	confopt="--prefix=${CLFS}/$cross_tools \
 	    --host=${CLFS_HOST} --target=${CLFS_TARGET} \$extraconfopt"
-	var_append extraconfopt " \
+	var_append extraconfopt " " " \
 	    --with-sysroot=${CLFS} --disable-nls --enable-shared \
-	    --enable-languages=c,c++ --enable-__cxa_atexit \
+	    --enable-languages=\$languages --enable-__cxa_atexit \
 	    --enable-c99 --enable-long-long --enable-threads=posix"
 	makeopt=""
 	makeinstopt="install"
@@ -116,10 +116,10 @@ elif [ $stagelevel -ge 2 ] ; then
 	    --enable-c99 --enable-long-long --enable-threads=posix \
 	    --enable-clocale=gnu"
 	if [ $stagelevel -eq 2 ] ; then
-		var_append extraconfopt " " "--enable-languages=c,c++ \
+		var_append extraconfopt " " "--enable-languages=\$languages \
 		    --disable-libstdcxx-pch"
 	else
-		var_append confopt ' ' '--enable-languages=$languages'
+		var_append extraconfopt ' ' '--enable-languages=$languages'
 		x="ROCKCFG_PKG_GCC${pkg_gcc_version}_PROFILED"
 		if [ "${!x}" = 1 ] ; then
 			var_append makeopt ' ' "GCJFLAGS=\"\$CXXFLAGS\" \
@@ -193,8 +193,8 @@ custmain () {
 
 	mkdir -v ../objdir ; cd ../objdir
 
-	eval echo $configprefix ../gcc-*/configure $confopt
-	eval $configprefix ../gcc-*/configure $confopt
+	eval echo $configprefix ../gcc-*/configure $( eval echo $confopt )
+	eval $configprefix ../gcc-*/configure $( eval echo $confopt )
 
 	eval make $makeopt