fix a typo

[simgear.git] / simgear / screen / extensions.cxx

diff --git a/simgear/screen/extensions.cxx b/simgear/screen/extensions.cxx
index ad406776e8040435d17dc948e3ee6f552e72a6df..7429c0f54d605cd667417ce362701473376a06e3 100644 (file)
--- a/simgear/screen/extensions.cxx
+++ b/simgear/screen/extensions.cxx
@@ -56,7 +56,7 @@ bool SGSearchExtensionsString(const char *extString, const char *extName) {
     return GL_FALSE;
 }
 
-bool SGIsOpenGLExtensionSupported(char *extName) {
+bool SGIsOpenGLExtensionSupported(const char *extName) {
    // Returns GL_TRUE if the OpenGL Extension whose name is *extName
    // is supported by the system, or GL_FALSE otherwise.
    //