build-sys: check for libblkid

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/configure.ac b/configure.ac
index eb82ed3..2d05338 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -42,6 +42,19 @@ AC_PROG_GCC_TRADITIONAL
 AC_PROG_MKDIR_P
 AC_PATH_PROG([XSLTPROC], [xsltproc])
 
+# ------------------------------------------------------------------------------
+AC_ARG_ENABLE(blkid, AS_HELP_STRING([--disable-blkid], [disable blkid support]))
+if test "x$enable_blkid" != "xno"; then
+        PKG_CHECK_MODULES(BLKID, [ blkid >= 2.20 ],
+                [AC_DEFINE(HAVE_BLKID, 1, [Define if blkid is available]) have_blkid=yes], have_blkid=no)
+        if test "x$have_blkid" = xno -a "x$enable_blkid" = xyes; then
+                AC_MSG_ERROR([*** blkid support requested but libraries not found])
+        fi
+fi
+AM_CONDITIONAL(HAVE_BLKID, [test "$have_blkid" = "yes"])
+
+# ------------------------------------------------------------------------------
+
 AC_CONFIG_FILES([
         Makefile
 ])
@@ -52,4 +65,6 @@ AC_MSG_RESULT([
 
         prefix:                  ${prefix}
         libdir:                  ${libdir}
+
+        blkid:                   ${have_blkid}
 ])