net/e1000: fix build with clang

GCC_VERSION is empty in case of clang:
	/bin/sh: line 0: test: -ge: unary operator expected

It is the same issue as http://dpdk.org/dev/patchwork/patch/5994/

Fixes: 366113dbfb69 ("e1000: suppress misleading indentation warning")

Signed-off-by: Hiroyuki Mikita <h.mikita89@gmail.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

diff --git a/drivers/net/e1000/Makefile b/drivers/net/e1000/Makefile
index 5b801f5..57a60f0 100644 (file)
--- a/drivers/net/e1000/Makefile
+++ b/drivers/net/e1000/Makefile
@@ -50,14 +50,16 @@ ifeq ($(CONFIG_RTE_TOOLCHAIN_ICC),y)
 CFLAGS_BASE_DRIVER = -wd177 -wd181 -wd188 -wd869 -wd2259
 else
 #
-# CFLAGS for gcc
+# CFLAGS for gcc/clang
 #
 CFLAGS_BASE_DRIVER = -Wno-uninitialized -Wno-unused-parameter
 CFLAGS_BASE_DRIVER += -Wno-unused-variable
+ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)
 ifeq ($(shell test $(GCC_VERSION) -ge 60 && echo 1), 1)
 CFLAGS_BASE_DRIVER += -Wno-misleading-indentation
 endif
 endif
+endif
 
 #
 # Add extra flags for base driver files (also known as shared code)