wreadln: fix #ifdef for WIN32

[ncmpc.git] / src / Compiler.h

diff --git a/src/Compiler.h b/src/Compiler.h
index 7d19d686d704072739593e97acc2362b2cdf1266..38c008f4bbe66e515d5366788b4493073cc6a382 100644 (file)
--- a/src/Compiler.h
+++ b/src/Compiler.h
@@ -20,10 +20,6 @@
 #ifndef COMPILER_H
 #define COMPILER_H
 
-#define GCC_CHECK_VERSION(major, minor) \
-  (defined(__GNUC__) &&                                                 \
-   (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))))
-
 #define GCC_MAKE_VERSION(major, minor, patchlevel) ((major) * 10000 + (minor) * 100 + patchlevel)
 
 #ifdef __GNUC__
@@ -38,6 +34,21 @@
 #  define CLANG_VERSION 0
 #endif
 
+/**
+ * Are we building with the specified version of gcc (not clang or any
+ * other compiler) or newer?
+ */
+#define GCC_CHECK_VERSION(major, minor) \
+  (!CLANG_VERSION && \
+   GCC_VERSION >= GCC_MAKE_VERSION(major, minor, 0))
+
+/**
+ * Are we building with clang (any version) or at least the specified
+ * gcc version?
+ */
+#define CLANG_OR_GCC_VERSION(major, minor) \
+  (CLANG_VERSION || GCC_CHECK_VERSION(major, minor))
+
 /**
  * Are we building with gcc (not clang or any other compiler) and a
  * version older than the specified one?
@@ -46,7 +57,7 @@
   (GCC_VERSION && !CLANG_VERSION && \
    GCC_VERSION < GCC_MAKE_VERSION(major, minor, 0))
 
-#if GCC_CHECK_VERSION(4,0)
+#if CLANG_OR_GCC_VERSION(4,0)
 
 /* GCC 4.x */
 
@@ -106,7 +117,7 @@
 
 #endif
 
-#if GCC_CHECK_VERSION(4,3)
+#if CLANG_OR_GCC_VERSION(4,3)
 
 #define gcc_hot __attribute__((hot))
 #define gcc_cold __attribute__((cold))
@@ -118,7 +129,7 @@
 
 #endif /* ! GCC_UNUSED >= 40300 */
 
-#if GCC_CHECK_VERSION(4,6) && !defined(__clang__)
+#if GCC_CHECK_VERSION(4,6)
 #define gcc_flatten __attribute__((flatten))
 #else
 #define gcc_flatten
@@ -127,7 +138,7 @@
 #ifndef __cplusplus
 /* plain C99 has "restrict" */
 #define gcc_restrict restrict
-#elif GCC_CHECK_VERSION(4,0)
+#elif CLANG_OR_GCC_VERSION(4,0)
 /* "__restrict__" is a GCC extension for C++ */
 #define gcc_restrict __restrict__
 #else
@@ -145,7 +156,7 @@
 #define final
 #endif
 
-#if defined(__clang__) || GCC_CHECK_VERSION(4,8)
+#if CLANG_OR_GCC_VERSION(4,8)
 #define gcc_alignas(T, fallback) alignas(T)
 #else
 #define gcc_alignas(T, fallback) gcc_aligned(fallback)