Fixes for clang not being able to run unit tests (#13546)

1 files changed, 5 insertions, 0 deletions

diff --git a/tmk_core/native.mk b/tmk_core/native.mk
index 3caf64454..f609fd0e6 100644
--- a/tmk_core/native.mk
+++ b/tmk_core/native.mk
@@ -1,4 +1,5 @@
 SYSTEM_TYPE := $(shell gcc -dumpmachine)
+GCC_VERSION := $(shell gcc --version 2>/dev/null)
 
 CC = gcc
 OBJCOPY =
@@ -12,7 +13,9 @@ BIN =
 
 
 COMPILEFLAGS += -funsigned-char
+ifeq ($(findstring clang, ${GCC_VERSION}),)
 COMPILEFLAGS += -funsigned-bitfields
+endif
 COMPILEFLAGS += -ffunction-sections
 COMPILEFLAGS += -fdata-sections
 COMPILEFLAGS += -fshort-enums
@@ -21,7 +24,9 @@ COMPILEFLAGS += -mno-ms-bitfields
 endif
 
 CFLAGS += $(COMPILEFLAGS)
+ifeq ($(findstring clang, ${GCC_VERSION}),)
 CFLAGS += -fno-inline-small-functions
+endif
 CFLAGS += -fno-strict-aliasing
 
 CXXFLAGS += $(COMPILEFLAGS)