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configure: Fix build with automake < 1.11
authorLauri Kasanen <cand@gmx.com>
Fri, 22 Feb 2013 20:25:58 +0000 (22:25 +0200)
committerMatt Turner <mattst88@gmail.com>
Fri, 22 Feb 2013 21:15:14 +0000 (13:15 -0800)
commit0a82828ad53bfd8395614be48d33fc522d15f6c4
treecdd81f1491391ff0298995ad838f61ee76632b5c
parentcff862f90dbcf32395b0b2940c2446959314538a
configure: Fix build with automake < 1.11

Commit 86d30dea3c13d29ef8d39bc18db63a0441051975 broke building with older
automake versions with this error:

Makefile:769: *** Recursive variable am__v_YACC_ references itself (eventually).  Stop.

This patch fixes it. Fix stolen from xorg-macros.

Signed-off-by: Lauri Kasanen <cand@gmx.com>
configure.ac