test for round() using C++ compiler, not C one (should fix IRIX mipsPro build)

[wxWidgets.git] / configure.in

diff --git a/configure.in b/configure.in
index fccdba171ddde4b715a1ddd5238984a0d9119f2e..554af1ca3d98cac3f8f32cc848f19a071e495e74 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -4713,7 +4713,11 @@ if test "$wxUSE_FILE" = "yes"; then
     WX_CHECK_FUNCS(fsync)
 fi
 
+dnl at least under IRIX with mipsPro the C99 round() function is available when
+dnl building using the C compiler but not when using C++ one
+AC_LANG_PUSH(C++)
 WX_CHECK_FUNCS(round,,,[#include <math.h>])
+AC_LANG_POP()
 
 dnl the following tests are for Unix(like) systems only
 if test "$TOOLKIT" != "MSW"; then