add stdbool.h to properly support bool type

diff --git a/glslang/Include/glslang_c_interface.h b/glslang/Include/glslang_c_interface.h
index 05c707e..25da08a 100644 (file)
--- a/glslang/Include/glslang_c_interface.h
+++ b/glslang/Include/glslang_c_interface.h
@@ -33,6 +33,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef GLSLANG_C_IFACE_H_INCLUDED
 #define GLSLANG_C_IFACE_H_INCLUDED
 
+#include <stdbool.h>
 #include <stdlib.h>
 
 #include "glslang_c_shader_types.h"