- we have to reconfigure iff some compiler-config was changed.

diff --git a/toolchain/gcc/gcc-uclibc-4.x.mk b/toolchain/gcc/gcc-uclibc-4.x.mk
index 5d90dbb4d9780ccbedb10d188f66e368f25e7833..95fcda913a9061c72acecec8b3adea0be11909c6 100644 (file)
--- a/toolchain/gcc/gcc-uclibc-4.x.mk
+++ b/toolchain/gcc/gcc-uclibc-4.x.mk
@@ -48,8 +48,14 @@ endif
 #
 #############################################################
 
+GCC_TARGET_PREREQ =
+GCC_STAGING_PREREQ= $(STAGING_DIR)/usr/lib/libc.a
+
 GCC_TARGET_LANGUAGES:=c
 
+GCC_TARGET_PREREQ += $(wildcard $(BASE_DIR)/include/config/br2/install/libstdcpp* $(BASE_DIR)/include/config/br2/install/libgcj* $(BASE_DIR)/include/config/br2/install/objc* $(BASE_DIR)/include/config/br2/install/fortran*)
+GCC_STAGING_PREREQ+= $(wildcard $(BASE_DIR)/include/config/br2/install/libstdcpp* $(BASE_DIR)/include/config/br2/install/libgcj* $(BASE_DIR)/include/config/br2/install/objc* $(BASE_DIR)/include/config/br2/install/fortran*)
+
 ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
 GCC_TARGET_LANGUAGES:=$(GCC_TARGET_LANGUAGES),c++
 endif
@@ -62,9 +68,6 @@ ifeq ($(BR2_INSTALL_OBJC),y)
 GCC_TARGET_LANGUAGES:=$(GCC_TARGET_LANGUAGES),objc
 endif
 
-GCC_TARGET_PREREQ =
-GCC_STAGING_PREREQ= $(STAGING_DIR)/usr/lib/libc.a
-
 ifndef GCC_NO_MPFR
 GCC_WITH_HOST_GMP=--with-gmp=$(GMP_HOST_DIR)
 GCC_WITH_HOST_MPFR=--with-mpfr=$(MPFR_HOST_DIR)