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Description: Fix the gcc atomic detection to work for
gcc-5.x and up, as well as adding -latomic to LIBS
Author: Adam Conrad <adconrad@ubuntu.com>
Bug-Debian: https://bugs.debian.org/787084
Last-Update: 2017-07-08
[ Steve Capper: rebase patch against new upstream version of TBB ]
--- a/build/linux.gcc.inc
+++ b/build/linux.gcc.inc
@@ -41,8 +41,10 @@
endif
# gcc 4.8 and later support RTM intrinsics, but require command line switch to enable them
+# furthemore, on gcc 4.8 and later, some arches require -latomic to use atomic intrinsics
ifneq (,$(shell $(CONLY) -dumpfullversion -dumpversion | egrep "^(4\.[8-9]|[5-9]|1[0-9])"))
- RTM_KEY = -mrtm
+ RTM_KEY = -mrtm
+ LIBS += -latomic
endif
# gcc 4.0 and later have -Wextra that is used by some our customers.
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