gnu: openscad: Add patch to fix build.

* gnu/packages/patches/openscad-parser-boost-1.72.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/engineering.scm (openscad)[source]: Use it.

1 files changed, 26 insertions, 0 deletions

diff --git a/gnu/packages/patches/openscad-parser-boost-1.72.patch b/gnu/packages/patches/openscad-parser-boost-1.72.patch
new file mode 100644
index 0000000000..35311e6173
--- /dev/null
+++ b/gnu/packages/patches/openscad-parser-boost-1.72.patch
@@ -0,0 +1,26 @@
+https://github.com/openscad/openscad/commit/b6c170cc5d.patch
+
+From b6c170cc5dd1bc677176ee732cdb0ddae57e5cf0 Mon Sep 17 00:00:00 2001
+From: Jan Beich <jbeich@FreeBSD.org>
+Date: Fri, 25 Oct 2019 15:10:26 +0000
+Subject: [PATCH] Add missing header bootlegged by Boost < 1.72
+
+src/parser.y:76:6: error: no template named 'stack' in namespace 'std'
+std::stack<LocalScope *> scope_stack;
+~~~~~^
+---
+ src/parser.y | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/src/parser.y b/src/parser.y
+index 7f4fd56ca7..4c77c989ea 100644
+--- a/src/parser.y
++++ b/src/parser.y
+@@ -46,6 +46,7 @@
+ #include "printutils.h"
+ #include "memory.h"
+ #include <sstream>
++#include <stack>
+ #include <boost/filesystem.hpp>
+ #include "boost-utils.h"
+ #include "feature.h"