[Sheepdog] [PATCH] don't check for liburcu pkg-config files

[Christoph Hellwig]

For now we only use the uatomic.h header from liburcu and don't need
to link against the actual library, so we don't bother with the
PKG_CHECK_MODULES check.  If an actual dependency is introduced it
will need to be added back, including a non-pkgconfig check for older
distributions Like Debian -testing where the current check fails.

Signed-off-by: Christoph Hellwig <hch at lst.de>

Index: sheepdog/configure.ac
===================================================================
--- sheepdog.orig/configure.ac	2012-05-10 16:34:13.471990160 +0200
+++ sheepdog/configure.ac	2012-05-10 16:34:46.639989839 +0200
@@ -77,7 +77,6 @@ AM_MISSING_PROG(AUTOM4TE, autom4te, $mis
 
 # Checks for libraries.
 AC_CHECK_LIB([socket], [socket])
-PKG_CHECK_MODULES([liburcu],[liburcu])
 
 # Checks for header files.
 AC_FUNC_ALLOCA