build: valadoc requires valac 0.18.1

diff --git a/configure.ac b/configure.ac
index ad55ded4999e88ea03389473bcddbf472a9ce968..c9df433f8c82575c85d7dc2326f18493e1a27e9c 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -74,6 +74,7 @@ AC_PATH_PROG([VALAC], [valac], :)
 AC_SUBST(VALAC)
 
 VALAC_BOOTSTRAP_REQUIRED=0.39.5.8
+VALAC_VALADOC_REQUIRED=0.18.1
 
 AS_IF([test "$VALAC" != :], [FOUND_VALAC_VERION=`$VALAC --version | sed 's/Vala  *//'`
        AS_VERSION_COMPARE(["$VALAC_BOOTSTRAP_REQUIRED"], ["$FOUND_VALAC_VERION"],
@@ -195,6 +196,12 @@ AC_SUBST(GMODULE_LIBS)
 
 AC_ARG_WITH(cgraph, AS_HELP_STRING([--with-cgraph], [Required flag for cross-compilation to define capability of graphviz]), [], with_cgraph=check)
 AC_ARG_ENABLE(valadoc, AS_HELP_STRING([--disable-valadoc], [Disable valadoc]), enable_valadoc=$enableval, enable_valadoc=yes)
+AS_IF([test "$VALAC" != :], [FOUND_VALAC_VERION=`$VALAC --version | sed 's/Vala  *//'`
+       AS_VERSION_COMPARE(["$FOUND_VALAC_VERION"], ["$VALAC_VALADOC_REQUIRED"], [
+               AC_MSG_WARN([Force disable build of valadoc, valac >= $VALAC_VALADOC_REQUIRED is required])
+               enable_valadoc=no
+       ])
+])
 if test x$enable_valadoc = xyes; then
        PKG_CHECK_MODULES(LIBGVC, libgvc >= $LIBGVC_REQUIRED)
        AC_MSG_CHECKING([for CGRAPH])