Enable compilation warnings on C++

diff --git a/configure.ac b/configure.ac
index ad85ffebc3370163dbad9d95fc283ab825835a87..c1a7b63d8dcb143a24e49fd3bcc074219025ecaf 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -962,6 +962,9 @@ dnl
 
 RDC_PROG_CC_WFLAGS([all extra sign-compare undef pointer-arith bad-function-cast write-strings missing-prototypes volatile-register-var error-implicit-function-declaration])
 RDC_PROG_CC_FLAGS([-pipe])
+AC_LANG_PUSH([C++])
+RDC_PROG_CXX_WFLAGS([all extra sign-compare undef pointer-arith volatile-register-var])
+AC_LANG_POP([C++])
 
 dnl
 dnl  Debugging mode