Kristian Hoffmann writes:

TARGET_LANGUAGES wasn't being set correctly if you enable GCJ or C++ in
the buildroot config.  It looks like INSTALL_LIBSTDCPP and INSTALL_LIBGCJ
were renamed to BR2_INSTALL_... in the config system, but not in the gcc
and ccache makefiles.

-Kristian

toolchain/ccache/ccache.mk

@@ -62,7 +62,7 @@ $(STAGING_DIR)/$(CCACHE_TARGET_BINARY): $(CCACHE_DIR1)/$(CCACHE_BINARY)
 		ln -fs ../usr/bin/ccache $(GNU_TARGET_NAME)-gcc; \
 		ln -fs ../usr/bin/ccache $(REAL_GNU_TARGET_NAME)-cc; \
 		ln -fs ../usr/bin/ccache $(REAL_GNU_TARGET_NAME)-gcc);
-ifeq ($(INSTALL_LIBSTDCPP),true)
+ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
 	[ -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-c++ ] && \
 		mv $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-c++ $(STAGING_DIR)/bin-ccache/
 	[ -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-g++ ] && \

toolchain/gcc/Makefile.in

@@ -21,11 +21,6 @@ TARGET_SOFT_FLOAT:=
 ARCH_FPU_SUFFIX:=
 endif
 
-ifeq ($(INSTALL_LIBGCJ),true)
-INSTALL_LIBSTDCPP:=true
-endif
-
-
 ifeq ($(strip $(BR2_PACKAGE_GCC_TARGET)),y)
 TARGETS+=gcc_target
 endif

toolchain/gcc/gcc-uclibc-2.95.mk

@@ -36,7 +36,7 @@ GCC_STRIP_HOST_BINARIES:=true
 #
 #############################################################
 
-ifeq ($(INSTALL_LIBSTDCPP),true)
+ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
 TARGET_LANGUAGES:=c,c++
 STLPORT_TARGET=stlport
 else

toolchain/gcc/gcc-uclibc-3.x.mk

@@ -39,10 +39,10 @@ GCC_STRIP_HOST_BINARIES:=true
 #
 #############################################################
 
-ifeq ($(INSTALL_LIBGCJ),true)
+ifeq ($(BR2_INSTALL_LIBGCJ),y)
 TARGET_LANGUAGES:=c,c++,java
 else
-ifeq ($(INSTALL_LIBSTDCPP),true)
+ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
 TARGET_LANGUAGES:=c,c++
 else
 TARGET_LANGUAGES:=c