configure.ac: add explicit PKG_PROG_PKG_CONFIG

We still use pkg-config to get the xkb_base variable from
xkeyboard-config, but we removed all of the other PKG_ macro calls. This
still works now, because XORG_DEFAULT_OPTIONS runs it somehow. But we
shouldn't rely on it.

Signed-off-by: Ran Benita <ran234@gmail.com>

diff --git a/configure.ac b/configure.ac
index eda593c..46ef469 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -53,6 +53,7 @@ AC_C_TYPEOF
 
 # Check for programs
 AC_PROG_MKDIR_P
+PKG_PROG_PKG_CONFIG
 AC_PROG_LEX
 AC_PROG_YACC
 AC_PATH_PROG([YACC_INST], $YACC)