From 1d28cf070933568db8006ce45411723c5369e145 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Tue, 10 Apr 2018 19:54:50 +0200
Subject: [PATCH] Fix compilation without pthread.h

Commit 7759e6f8469eb33aef1a1d5eba5d300c3a8fcb63 broke compilation on
systems without pthread.h. So add a call to AC_CHECK_HEADERS in
configure.ac and put include <pthread.h> under HAVE_PTHREAD_H define

Fixes:
 - http://autobuild.buildroot.net/results/6132f33fb282fda3c39deb292784b9006c9e7872

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 configure.ac | 1 +
 src/cap-ng.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/configure.ac b/configure.ac
index 7a99c72..4d6afee 100644
--- a/configure.ac
+++ b/configure.ac
@@ -56,6 +56,7 @@ 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_C_CONST
 AC_C_INLINE
diff --git a/src/cap-ng.c b/src/cap-ng.c
index db647fd..240d2ba 100644
--- a/src/cap-ng.c
+++ b/src/cap-ng.c
@@ -34,7 +34,9 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <byteswap.h>
+#ifdef HAVE_PTHREAD_H
 #include <pthread.h>	// For pthread_atfork
+#endif
 #ifdef HAVE_SYSCALL_H
 #include <sys/syscall.h>
 #endif
-- 
2.14.1