build: do not hard-code pkg-config

Use $PKG_CONFIG in configure.ac in order to allow it to be overridden.
Fixes cross-compilation.

Signed-off-by: Jeremy Sowden <jeremy@azazel.net>

diff --git a/configure.ac b/configure.ac
index 8f8a13b9d4b7c60c7dda7a399d66fdbb79b5af71..7d779964f77da5208d18e83baa36e8fa39de2883 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,7 @@ fi
 AC_CHECK_HEADERS([linux/netfilter/x_tables.h], [],
        [AC_MSG_ERROR([You need to have linux/netfilter/x_tables.h, see INSTALL file for details])])
 PKG_CHECK_MODULES([libxtables], [xtables >= 1.6.0])
-xtlibdir="$(pkg-config --variable=xtlibdir xtables)"
+xtlibdir="$($PKG_CONFIG --variable=xtlibdir xtables)"
 
 AC_ARG_WITH([xtlibdir],
        AS_HELP_STRING([--with-xtlibdir=PATH],