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From 0230e2e374bb71aed0181ccd9ebd13c0c5125a5d Mon Sep 17 00:00:00 2001
From: Trevor Woerner <twoerner@gmail.com>
Date: Fri, 25 Oct 2019 17:01:20 -0400
Subject: [PATCH] configure.ac: add library if header found
If the pthread.h header is found, make sure library containing
"pthread_atfork" is added to the list of libraries against which to link.
On some hosts (e.g. openSUSE 15.1) "-lpthread" needs to be explicitly added
in order for the code to compile correctly.
Signed-off-by: Trevor Woerner <twoerner@gmail.com>
---
configure.ac | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 63088f4..639b464 100644
--- a/configure.ac
+++ b/configure.ac
@@ -56,7 +56,9 @@ AC_CHECK_HEADERS(sys/xattr.h, [], [
AC_CHECK_HEADERS(attr/xattr.h, [], [AC_MSG_WARN(attr/xattr.h not found, disabling file system capabilities.)])
])
AC_CHECK_HEADERS(linux/securebits.h, [], [])
-AC_CHECK_HEADERS(pthread.h, [], [AC_MSG_WARN(pthread.h not found, disabling pthread_atfork.)])
+AC_CHECK_HEADERS(pthread.h,
+ [AC_SEARCH_LIBS(pthread_atfork, pthread)],
+ [AC_MSG_WARN(pthread.h not found, disabling pthread_atfork.)])
AC_C_CONST
AC_C_INLINE
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