From a8a0aee3f3e48efcc79fcd351d3a2f2da2d98e1e Mon Sep 17 00:00:00 2001
From: "Adam J. Stewart" <ajstewart426@gmail.com>
Date: Mon, 17 Dec 2018 13:00:43 -0600
Subject: Add patch to fix windows.h include in freetype (#10075)

* Add patch to fix windows.h include in freetype

* Fix patch
---
 .../repos/builtin/packages/freetype/package.py     |  6 +++--
 .../repos/builtin/packages/freetype/windows.patch  | 27 ++++++++++++++++++++++
 2 files changed, 31 insertions(+), 2 deletions(-)
 create mode 100644 var/spack/repos/builtin/packages/freetype/windows.patch

diff --git a/var/spack/repos/builtin/packages/freetype/package.py b/var/spack/repos/builtin/packages/freetype/package.py
index acecc649ad..974af462bc 100644
--- a/var/spack/repos/builtin/packages/freetype/package.py
+++ b/var/spack/repos/builtin/packages/freetype/package.py
@@ -13,9 +13,9 @@ class Freetype(AutotoolsPackage):
     of most vector and bitmap font formats."""
 
     homepage = "https://www.freetype.org/index.html"
-    url      = "http://download.savannah.gnu.org/releases/freetype/freetype-2.7.1.tar.gz"
+    url      = "https://download.savannah.gnu.org/releases/freetype/freetype-2.9.1.tar.gz"
 
-    version('2.9.1', 'ec391504e55498adceb30baceebd147a6e963f636eb617424bcfc47a169898ce')
+    version('2.9.1', sha256='ec391504e55498adceb30baceebd147a6e963f636eb617424bcfc47a169898ce')
     version('2.7.1', '78701bee8d249578d83bb9a2f3aa3616')
     version('2.7',   '337139e5c7c5bd645fe130608e0fa8b5')
     version('2.5.3', 'cafe9f210e45360279c730d27bf071e9')
@@ -24,6 +24,8 @@ class Freetype(AutotoolsPackage):
     depends_on('bzip2')
     depends_on('pkgconfig', type='build')
 
+    patch('windows.patch', when='@2.9.1')
+
     def configure_args(self):
         args = ['--with-harfbuzz=no']
         if self.spec.satisfies('@2.9.1:'):
diff --git a/var/spack/repos/builtin/packages/freetype/windows.patch b/var/spack/repos/builtin/packages/freetype/windows.patch
new file mode 100644
index 0000000000..ce858e7500
--- /dev/null
+++ b/var/spack/repos/builtin/packages/freetype/windows.patch
@@ -0,0 +1,27 @@
+https://github.com/spack/spack/issues/9729
+https://savannah.nongnu.org/bugs/index.php?54967
+http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=3b6e65f7bf674601b9419d02ce0aa633e2e882fb
+--- a/builds/unix/configure     2018-12-14 22:08:30.000000000 -0600
++++ b/builds/unix/configure     2018-12-14 22:07:56.000000000 -0600
+@@ -11853,7 +11853,9 @@
+ # Only expand once:
+ 
+ 
+-if test -n "$ac_tool_prefix"; then
++ac_fn_c_check_header_mongrel "$LINENO" "windows.h" "ac_cv_header_windows_h" "$ac_includes_default"
++if test "x$ac_cv_header_windows_h" = xyes; then :
++  if test -n "$ac_tool_prefix"; then
+   # Extract the first word of "${ac_tool_prefix}windres", so it can be a program name with args.
+ set dummy ${ac_tool_prefix}windres; ac_word=$2
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+@@ -12022,6 +12024,9 @@
+ CC=$lt_save_CC
+ CFLAGS=$lt_save_CFLAGS
+ 
++fi
++
++
+ 
+ 
+ # checks for native programs to generate building tool
+
-- 
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