--- src/hunspell/hunspell.hxx
+++ src/hunspell/hunspell.hxx
@@ -85,7 +85,7 @@
 #define MAXSHARPS 5
 #define MAXWORDLEN 176
 
-#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
+#if defined __GNUC__ && (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
 #  define H_DEPRECATED __attribute__((__deprecated__))
 #elif defined(_MSC_VER) && (_MSC_VER >= 1300)
 #  define H_DEPRECATED __declspec(deprecated)