[buildroot] hide C++ standard library selection behind INSTALL_LIBSTDCPP

If our toolchain is not configured to support C++, it is pointless choosing
a particular C++ standard library implementation.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33907 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/Config.in b/Config.in
index cca5a4c0f0cc37b0e12ccf92778a4cd9cec723ac..46f7ce8385f2e0be51220ba1a1ce111c13226e4d 100644 (file)
--- a/Config.in
+++ b/Config.in
@@ -549,20 +549,21 @@ menu "Global build settings"
                  Note that this will make the system libraries incompatible with most of the packages
                  that are not selected during the build process
 
                  Note that this will make the system libraries incompatible with most of the packages
                  that are not selected during the build process
 

-       choice
-               prompt "Preferred standard C++ library"
-               default USE_LIBSTDCXX if USE_EGLIBC
-               default USE_UCLIBCXX
-               help
-                 Select the preferred standard C++ library for all packages that support this.
-
-               config USE_UCLIBCXX
-                       bool "uClibc++"
+       if INSTALL_LIBSTDCPP
+               choice
+                       prompt "Preferred standard C++ library"
+                       default USE_LIBSTDCXX if USE_EGLIBC
+                       default USE_UCLIBCXX
+                       help
+                         Select the preferred standard C++ library for all packages that support this.

 
 

-               config USE_LIBSTDCXX
-                       bool "libstdc++"
+                       config USE_UCLIBCXX
+                               bool "uClibc++"

 
 

-       endchoice
+                       config USE_LIBSTDCXX
+                               bool "libstdc++"
+               endchoice
+       endif

 
 endmenu
 
 
 endmenu