From a5c5b9f76767badb3f198326bd5cbbebba803e36 Mon Sep 17 00:00:00 2001 From: Markos Chandras Date: Tue, 22 Mar 2016 17:13:36 +0000 Subject: [PATCH] mk: fix gcc-5 version on Suse In openSUSE Tumbleweed (and in any other SUSE distribution which uses (or will use) gcc >= 5), gcc -dumpversion returns '5'. This is on purpose as discussed in https://bugzilla.opensuse.org/show_bug.cgi?id=941428 As a result of which, the gcc-4.x comparison (40 against 5) does not work leading to tons of warnings and failures during build. This patch aims to change the way the gcc version is obtained by using the gcc macros directly. This is similar to what's being used in the Linux kernel. Querying the GCC macros directly gives more accurate results compared to -dumpversion which could vary across distributions. Signed-off-by: Markos Chandras Acked-by: Thomas Monjalon --- mk/toolchain/gcc/rte.toolchain-compat.mk | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mk/toolchain/gcc/rte.toolchain-compat.mk b/mk/toolchain/gcc/rte.toolchain-compat.mk index e144216732..6eed20cc32 100644 --- a/mk/toolchain/gcc/rte.toolchain-compat.mk +++ b/mk/toolchain/gcc/rte.toolchain-compat.mk @@ -38,7 +38,9 @@ #find out GCC version -GCC_VERSION = $(subst .,,$(shell $(CC) -dumpversion | cut -f1-2 -d.)) +GCC_MAJOR = $(shell echo __GNUC__ | $(CC) -E -x c - | tail -n 1) +GCC_MINOR = $(shell echo __GNUC_MINOR__ | $(CC) -E -x c - | tail -n 1) +GCC_VERSION = $(GCC_MAJOR)$(GCC_MINOR) # if GCC is older than 4.x ifeq ($(shell test $(GCC_VERSION) -lt 40 && echo 1), 1) -- 2.20.1