package/cryptopp: fix build with gcc < 4.9

Fixes:
 - http://autobuild.buildroot.org/results/7e68f32e62c34497848f0f7fc1f12dba67bf44d0

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Arnout: re-order the assignments]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

diff --git a/package/cryptopp/cryptopp.mk b/package/cryptopp/cryptopp.mk
index 33c84231579523e598deb4cfbeac3df9294c045e..3a9f621c67026cb3d2a3638338618a49c6bbd6ae 100644 (file)
--- a/package/cryptopp/cryptopp.mk
+++ b/package/cryptopp/cryptopp.mk
@@ -15,9 +15,16 @@ define HOST_CRYPTOPP_EXTRACT_CMDS
        $(UNZIP) $(HOST_CRYPTOPP_DL_DIR)/$(CRYPTOPP_SOURCE) -d $(@D)
 endef
 
+HOST_CRYPTOPP_CXXFLAGS = $(HOST_CFLAGS) -fPIC
+
+# _mm256_broadcastsi128_si256 has been added only in gcc 4.9
+ifneq ($(BR2_HOST_GCC_AT_LEAST_4_9),y)
+HOST_CRYPTOPP_CXXFLAGS += -DCRYPTOPP_DISABLE_AVX2
+endif
+
 HOST_CRYPTOPP_MAKE_OPTS = \
        $(HOST_CONFIGURE_OPTS) \
-       CXXFLAGS="$(HOST_CXXFLAGS) -fPIC"
+       CXXFLAGS="$(HOST_CRYPTOPP_CXXFLAGS)"
 
 define HOST_CRYPTOPP_BUILD_CMDS
        $(HOST_MAKE_ENV) $(MAKE) -C $(@D) $(HOST_CRYPTOPP_MAKE_OPTS) shared