3 files changed, 4 insertions, 4 deletions
diff --git a/src/test/methods.h b/src/test/methods.h
index 8e99921..46b7319 100644
--- a/src/test/methods.h
+++ b/src/test/methods.h
@@ -19,7 +19,7 @@
 #define LIBGAMMA_TEST_METHODS_H
 
 
-#ifndef __GNUC__
+#ifndef __GCC__
 # define __attribute__()
 #endif
 
diff --git a/src/test/test.c b/src/test/test.c
index 53b0515..eafe90f 100644
--- a/src/test/test.c
+++ b/src/test/test.c
@@ -126,12 +126,12 @@ typedef const char* str;
 print_crtc_information_(size_t, "lu")
 print_crtc_information_(signed, "i")
 print_crtc_information_(int, "i")
-#ifdef __GNUC__
+#ifdef __GCC__
 # pragma GCC diagnostic push
 # pragma GCC diagnostic ignored "-Wdouble-promotion"
 #endif
 print_crtc_information_(float, "f")
-#ifdef __GNUC__
+#ifdef __GCC__
 # pragma GCC diagnostic pop
 #endif
 print_crtc_information_(str, "s")
diff --git a/src/test/update-warnings.h b/src/test/update-warnings.h
index f361b8e..b400fe3 100644
--- a/src/test/update-warnings.h
+++ b/src/test/update-warnings.h
@@ -43,7 +43,7 @@
  * accomplish this.
  */
 
-#ifdef __GNUC__
+#ifdef __GCC__
 # if LIBGAMMA_ERROR_MIN < -46
 #  warning New error codes have been added to libgamma.
 # endif