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From e0de0d9e981ddb53bdeb4a4b9dc43046c9ff4ff9 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Thu, 6 May 2021 23:08:36 +0200
Subject: [PATCH 304/304] link with -latomic if needed
numactl unconditionally uses __atomic_fetch_and but some architectures
(e.g. sparc) needs to link with -latomic to be able to use it. So check
if -latomic is needed and update numa.pc accordingly
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
Makefile.am | 1 +
configure.ac | 2 ++
numa.pc.in | 1 +
3 files changed, 4 insertions(+)
diff --git a/Makefile.am b/Makefile.am
index 44d0d76..34f6815 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -151,6 +151,7 @@ SED_PROCESS = \
-e 's,@exec_prefix\@,$(exec_prefix),g' \
-e 's,@libdir\@,$(libdir),g' \
-e 's,@includedir\@,$(includedir),g' \
+ -e 's,@LIBS\@,$(LIBS),g' \
< $< > $@ || rm $@
%.pc: %.pc.in Makefile
diff --git a/configure.ac b/configure.ac
index 659a765..e3b0eb3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -24,6 +24,8 @@ AM_CONDITIONAL([HAVE_TREE_VECTORIZE], [test x"${tree_vectorize}" = x"true"])
AC_CONFIG_FILES([Makefile])
+AC_SEARCH_LIBS([__atomic_fetch_and_1], [atomic])
+
# GCC tries to be "helpful" and only issue a warning for unrecognized
# attributes. So we compile the test with Werror, so that if the
# attribute is not recognized the compilation fails
diff --git a/numa.pc.in b/numa.pc.in
index 8a0f202..cc04d50 100644
--- a/numa.pc.in
+++ b/numa.pc.in
@@ -8,3 +8,4 @@ Description: NUMA policy library
Version: @VERSION@
Cflags: -I${includedir}
Libs: -L${libdir} -lnuma
+Libs.Private: @LIBS@
--
2.30.1
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