Fix failure to detect quoted flex insets in conversion to layout

[lyx.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 1ce2ed3a24852dd1df82cab1f02f4796fc57309a..e3302e45f04e779ef75a786c509fba8353cc5858 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -27,7 +27,11 @@ fi
 AM_MAINTAINER_MODE
 
 save_PACKAGE=$PACKAGE
-AM_INIT_AUTOMAKE([foreign dist-bzip2 no-define 1.8])
+dnl The test for _AM_PROG_CC_C_O intends to test for automake 1.14 or newer,
+dnl which are the versions where subdir-objects can beused.
+dnl see: https://www.mail-archive.com/lyx-devel@lists.lyx.org/msg181023.html
+m4_define([LYX_OBJECTS_LAYOUT], m4_ifdef([_AM_PROG_CC_C_O],[subdir-objects],))
+AM_INIT_AUTOMAKE([foreign dist-bzip2 no-define 1.8] LYX_OBJECTS_LAYOUT)
 m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
 PACKAGE=$save_PACKAGE