Makefile: don't use clang unsupported options with clang

diff --git a/src/Makefile b/src/Makefile
index 371a75c..c39f955 100644 (file)
--- a/src/Makefile
+++ b/src/Makefile
@@ -23,13 +23,15 @@ CFLAGS += -fno-common \
        -Wswitch-enum \
        -Wundef \
        -Wunreachable-code \
-       -Wunsafe-loop-optimizations \
-       -Wunused-but-set-variable \
        -Wwrite-strings \
        -Wp,-D_FORTIFY_SOURCE=2 \
        -fstack-protector \
        --param=ssp-buffer-size=4
 
+ifneq ($(CC),clang)
+  CFLAGS += -Wunsafe-loop-optimizations -Wunused-but-set-variable
+endif
+
 CFLAGS += $(shell pkg-config --cflags libusb-1.0)
 LDLIBS := $(shell pkg-config --libs libusb-1.0)