Update zlib from 1.2.5 to 1.2.11. (#15480)

Circa 2010 to circa 2017.

Retrieved with apt-get source zlib on WSL Ubuntu 18.04.2 LTS.

This matches Debian or Ubuntu (they differ by one commit, and one of them restores a dummy function for compat).

---

* [minizip] Ensure we don't ever accidentally change calling convention

Make sure we always #define ZCALLBACK to empty so we don't change
the calling convention on windows by including a header which defines
'CALLBACK'. This will keep things as cdecl as required by the c#
pinvokes.

* Update zlib readme.

* Update zlib from 1.2.5 to 1.2.11.

* [zlib] Small fix for Visual C++.
see https://github.com/madler/zlib/pull/435/files#diff-0558e84b0c24a83ca790dcb05cd26212R1087
and https://github.com/madler/zlib/pull/435/files#diff-0558e84b0c24a83ca790dcb05cd26212R1104

* Add gzguts.h to Makefiles.

* Add .h files to Visual Studio project files just for GUI purposes.

3 files changed, 16 insertions, 2 deletions

diff --git a/msvc/monoposixhelper.targets b/msvc/monoposixhelper.targets
index 63b2e0085ee..e56d0fb2fc9 100644
--- a/msvc/monoposixhelper.targets
+++ b/msvc/monoposixhelper.targets
@@ -29,6 +29,7 @@
     <ClInclude Include="$(MonoSourceLocation)\support\inffast.h" />
     <ClInclude Include="$(MonoSourceLocation)\support\crc32.h" />
     <ClInclude Include="$(MonoSourceLocation)\support\deflate.h" />
+    <ClInclude Include="$(MonoSourceLocation)\support\gzguts.h" />

     <ClInclude Include="$(MonoSourceLocation)\support\inffixed.h" />
     <ClInclude Include="$(MonoSourceLocation)\support\inflate.h" />
     <ClInclude Include="$(MonoSourceLocation)\support\inftrees.h" />
diff --git a/msvc/monoposixhelper.targets.filters b/msvc/monoposixhelper.targets.filters
index 0d5393de0c4..9189d646ac2 100644
--- a/msvc/monoposixhelper.targets.filters
+++ b/msvc/monoposixhelper.targets.filters
@@ -78,6 +78,9 @@
     <ClInclude Include="$(MonoSourceLocation)\support\deflate.h">
       <Filter>Header Files$(MonoPosixHelperFilterSubFolder)</Filter>
     </ClInclude>
+    <ClInclude Include="$(MonoSourceLocation)\support\gzguts.h">

+      <Filter>Header Files$(MonoPosixHelperFilterSubFolder)</Filter>

+    </ClInclude>

     <ClInclude Include="$(MonoSourceLocation)\support\inffast.h">
       <Filter>Header Files$(MonoPosixHelperFilterSubFolder)</Filter>
     </ClInclude>
diff --git a/msvc/monozlib.targets b/msvc/monozlib.targets
index 1dca70ce59d..fddb369dea1 100644
--- a/msvc/monozlib.targets
+++ b/msvc/monozlib.targets
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="monozlib">
-    <ClCompile

-      Include="$(MonoSourceLocation)\support\adler32.c">

+    <ClCompile Include="$(MonoSourceLocation)\support\adler32.c">

       <CompileAs>CompileAsC</CompileAs>

     </ClCompile>

     <ClCompile Include="$(MonoSourceLocation)\support\crc32.c">

@@ -26,5 +25,16 @@
     <ClCompile Include="$(MonoSourceLocation)\support\zutil.c">

       <CompileAs>CompileAsC</CompileAs>

     </ClCompile>

+    <ClInclude Include="$(MonoSourceLocation)\support\crc32.h"/>

+    <ClInclude Include="$(MonoSourceLocation)\support\deflate.h"/>

+    <ClInclude Include="$(MonoSourceLocation)\support\gzguts.h"/>

+    <ClInclude Include="$(MonoSourceLocation)\support\inffast.h"/>

+    <ClInclude Include="$(MonoSourceLocation)\support\inffixed.h"/>

+    <ClInclude Include="$(MonoSourceLocation)\support\inflate.h"/>

+    <ClInclude Include="$(MonoSourceLocation)\support\inftrees.h"/>

+    <ClInclude Include="$(MonoSourceLocation)\support\trees.h"/>

+    <ClInclude Include="$(MonoSourceLocation)\support\zconf.h"/>

+    <ClInclude Include="$(MonoSourceLocation)\support\zutil.h"/>

+    <ClInclude Include="$(MonoSourceLocation)\support\zlib.h"/>

   </ItemGroup>
 </Project>