From: Andy Wingo <wingo@pobox.com>
Date: Sun, 6 Mar 2016 11:47:17 +0000 (+0100)
Subject: Fix check for libcap to re-set LIBS; add -lrt for mq_unlink
X-Git-Tag: v226.4~11
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=675af195fd6dd2e1f2d92f818c2efb9d328a46a9

Fix check for libcap to re-set LIBS; add -lrt for mq_unlink
---

diff --git a/configure.ac b/configure.ac
index 045bfb52a..0fdd7c58e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -232,18 +232,21 @@ AC_CHECK_HEADERS([linux/memfd.h], [], [])
 
 # unconditionally pull-in librt with old glibc versions
 AC_SEARCH_LIBS([clock_gettime], [rt], [], [])
+AC_SEARCH_LIBS([mq_unlink], [rt], [], [])
 
 AC_ARG_WITH([libcap],
             AS_HELP_STRING([--with-libcap=DIR], [Prefix for libcap]),
             [CAP_LDFLAGS="-L$with_libcap/lib"],
             [CAP_LDFLAGS=""])
 save_LIBS="$LIBS"
+save_LDFLAGS="$LDFLAGS"
 LIBS=
 LDFLAGS="$LDFLAGS $CAP_LDFLAGS"
 AC_SEARCH_LIBS([cap_init], [cap], [], [AC_MSG_ERROR([*** POSIX caps library not found])])
 CAP_LIBS="$LIBS"
 AC_SUBST(CAP_LIBS)
 AC_SUBST(CAP_LDFLAGS)
+LIBS="$save_LIBS"
 LDFLAGS="$save_LDFLAGS"
 
 AC_CHECK_FUNCS([memfd_create])