Clifford Wolf:

package/base/gcc/gcc.conf

@@ -101,9 +101,7 @@ custmain() {
 	elif [ "$ROCKCFG_DEBUG" = 1 ] ; then
 		if [ -f libstdc++*/configure ] ; then
 			echo "Setting DEBUG_FLAGS='-s' in libstdc++ configure."
-			( cd libstdc++*
-			sed -i -e "s/DEBUG_FLAGS='-g'/DEBUG_FLAGS='-s'/g" \
-			configure )
+			sed -i -e "s/DEBUG_FLAGS='-g'/DEBUG_FLAGS='-s'/g" libstdc++*/configure
 		fi
 		MAKE="$MAKE LIBGCC2_DEBUG_CFLAGS=-s LDFLAGS=-Wl,-s JCFLAGS=-s"
 	fi
@@ -149,13 +147,13 @@ custmain() {
 	if [ $stagelevel -le 1 ] ; then
 
 		create_config_cache > config.cache
-		eval $configprefix ../configure $confopt --enable-languages=c
+		eval $configprefix bash ../configure $confopt --enable-languages=c
 
 		# creating native libiberty for build system
 		# (needed to build helper apps like gengenrtl)
 		#
 		mkdir -p $arch_build ; cd $arch_build
-		CC=$BUILDCC ../../configure
+		CC=$BUILDCC bash ../../configure
 		make all-libiberty ; cd ..
 
 		MAKE="$MAKE LANGUAGES=c"
@@ -230,7 +228,7 @@ custmain() {
 
 		# Configure, build and install as usual
 		#
-		eval $configprefix ../configure $confopt --with-gnu-as \
+		eval $configprefix bash ../configure $confopt --with-gnu-as \
 			--enable-version-specific-runtime-libs \
 			--with-gnu-ld --enable-threads=posix
 
@@ -420,7 +418,7 @@ gcc_cross() {
 	fi
 	
 	mkdir objdir ; cd objdir ; hook_eval preconf
-	eval ../configure --program-prefix=${pkg_gcc_target}- --disable-cpp \
+	eval bash ../configure --program-prefix=${pkg_gcc_target}- --disable-cpp \
 	                 --disable-shared --disable-multilib $confopt
 	if [ -d libiberty ]; then make -C libiberty; fi
 	if [ -d texinfo ]; then make -C texinfo; fi

scripts/functions

@@ -279,7 +279,7 @@ function eval_config_command() {
 		export cache_file=config.cache
 	fi
 
-	config_command="$configprefix $configscript"
+	config_command="$configprefix bash $configscript"
 	sub_scripts="$( find $( dirname $configscript ) -name configure )"
 
 	# remove unsupported config script options