From 274cb8ea470a10ce46b783e77784b0eb08cf20d8 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Sun, 1 Aug 2021 23:26:01 +0200
Subject: [PATCH] configure.ac: use pkg-config to find numa

Use pkg-config to find numa and fallback to current mechanism.
Thanks to pkg-config, numa dependencies such as -latomic will be
retrieved.

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
[Upstream status: https://github.com/Irqbalance/irqbalance/pull/188]
---
 configure.ac | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index c45b9ce..50c62ba 100644
--- a/configure.ac
+++ b/configure.ac
@@ -23,7 +23,14 @@ AC_CHECK_HEADERS([numa.h])
 
 AC_CHECK_FUNCS(getopt_long)
 
-AC_CHECK_LIB(numa, numa_available)
+PKG_CHECK_MODULES([NUMA], [numa], [has_numa=yes], [AC_CHECK_LIB(numa, numa_available)])
+AS_IF([test "x$has_numa" = "xyes"], [
+  AC_SUBST([NUMA_CFLAGS])
+  AC_SUBST([NUMA_LIBS])
+  LIBS="$LIBS $NUMA_LIBS"
+  AC_SUBST([LIBS])
+])
+
 AC_CHECK_LIB(m, floor)
 
 PKG_CHECK_MODULES([GLIB2], [glib-2.0], [], [AC_MSG_ERROR([glib-2.0 is required])])
-- 
2.30.2