build-sys: require at least vala 0.7

[elogind.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index f4e10367e01425f683075b0687a538c00576d3ce..6c9ba149c613f33ddc1492abc6b21b777bf0500d 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -49,6 +49,8 @@ AC_SEARCH_LIBS([clock_gettime], [rt], [], [AC_MSG_ERROR([*** POSIX RT library no
 AC_SEARCH_LIBS([cap_init], [cap], [], [AC_MSG_ERROR([*** POSIX caps library not found])])
 AC_CHECK_HEADERS([sys/capability.h], [], [AC_MSG_ERROR([*** POSIX caps headers not found])])
 
+# This makes sure pkg.m4 is available.
+m4_pattern_forbid([^_?PKG_[A-Z_]+$],[pkg.m4 missing, please install pkg-config])
 PKG_CHECK_MODULES(UDEV, [ libudev ])
 AC_SUBST(UDEV_CFLAGS)
 AC_SUBST(UDEV_LIBS)
@@ -85,7 +87,7 @@ PKG_CHECK_MODULES( CGROUP, [ libcgroup >= 0.35 ], [],
 AC_SUBST(CGROUP_CFLAGS)
 AC_SUBST(CGROUP_LIBS)
 
-AM_PROG_VALAC()
+AM_PROG_VALAC([0.7])
 AC_SUBST(VAPIDIR)
 
 AC_ARG_WITH(distro, AS_HELP_STRING([--with-distro=DISTRO],[Specify the distribution to target: One of fedora, suse, debian, or none]))