use C++ compiler for va_copy test, at least under IRIX the C99 C compiler has it but C++ compiler doesn't have it

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@46030 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2007-05-15 00:33:14 +00:00
parent b46b1d59d6
commit 65c1133755
2 changed files with 15 additions and 1 deletions
--- a/configure.in
+++ b/configure.in
@@ -1937,6 +1937,7 @@ dnl checks needed to define wxVaCopy
 AC_CACHE_CHECK([for va_copy],
    wx_cv_func_va_copy,
    [
+        AC_LANG_PUSH(C++)
        AC_LINK_IFELSE([
            #include <stdarg.h>
            void foo(char *f, ...)
@@ -1955,6 +1956,7 @@ AC_CACHE_CHECK([for va_copy],
            wx_cv_func_va_copy=yes,
            wx_cv_func_va_copy=no
        )
+        AC_LANG_POP()
    ]
 )