[wip/jafar-lgl] Add a patch to fix the build with gcc-4.7

The patch includes explicity <sys/types.h> to get the definition of
ssize_t. It is equivalent to commit cd27fb49d in mainstream.

jafar-lgl/Makefile

@@ -4,6 +4,7 @@
 
 VERSION=		1.7.1
 DISTNAME=		jafar-lgl-${VERSION}
+PKGREVISION=	1
 CATEGORIES=		wip
 MASTER_SITES=		${MASTER_SITE_OPENROBOTS:=jafar-lgl/}
 MASTER_REPOSITORY=	git ssh://trac.laas.fr/git/robots/jafar/jafar/modules/lgl

jafar-lgl/distinfo

 SHA1 (jafar-lgl-1.7.1.tar.gz) = b604ba2f16d0f63c93276db249bef12f433675a8
 RMD160 (jafar-lgl-1.7.1.tar.gz) = 1866b27da0ec15789444e56f3d582de85d1f3a64
 Size (jafar-lgl-1.7.1.tar.gz) = 264210 bytes
+SHA1 (patch-aa) = 4dfa02ec06ee2ffea94b600f46b8d3c0fced416f

jafar-lgl/patches/patch-aa

+diff --git a/include/lgl/FlexGrid.hpp b/include/lgl/FlexGrid.hpp
+index 8e1a9f6..5cdcaad 100644
+--- include/lgl/FlexGrid.hpp
++++ include/lgl/FlexGrid.hpp
+@@ -18,6 +18,8 @@
+ #include <stdexcept>
+ #include <iterator>
+ 
++#include <sys/types.h>
++
+ namespace jafar {
+ 	namespace lgl {
+