Fix macro redefinition for GNUC compilers > 6

GNUC compilers greater than version 6 already have the macro __always_inline defined. This fix checks GNUC version before defining the macro itself.

diff --git a/tmk_core/protocol/arm_atsam/usb/compiler.h b/tmk_core/protocol/arm_atsam/usb/compiler.h
index d3384398673344dd3466f6c0723ed8cf7714d8af..7d8350896b54addea2f01620ddd75826a96f9dbe 100644 (file)
--- a/tmk_core/protocol/arm_atsam/usb/compiler.h
+++ b/tmk_core/protocol/arm_atsam/usb/compiler.h
@@ -136,7 +136,7 @@
  */
 #if defined(__CC_ARM)
 #  define __always_inline             __forceinline
-#elif (defined __GNUC__)
+#elif (defined __GNUC__ && __GNUC__ <= 6)
 #  define __always_inline             __attribute__((__always_inline__))
 #elif (defined __ICCARM__)
 #  define __always_inline             _Pragma("inline=forced")