From c7db4c3498e751dc0e2503212de49af1df2a3ab1 Mon Sep 17 00:00:00 2001
From: Nemirtingas <9432037+Nemirtingas@users.noreply.github.com>
Date: Tue, 27 Oct 2020 04:59:39 +0100
Subject: [zstd] Removing de-duplication of cmake flags (#13454)

---
 ports/zstd/0002-crosscompile-windows.patch | 12 ++++++++++++
 ports/zstd/CONTROL                         |  2 +-
 ports/zstd/portfile.cmake                  |  1 +
 3 files changed, 14 insertions(+), 1 deletion(-)
 create mode 100644 ports/zstd/0002-crosscompile-windows.patch

diff --git a/ports/zstd/0002-crosscompile-windows.patch b/ports/zstd/0002-crosscompile-windows.patch
new file mode 100644
index 000000000..c084da1ff
--- /dev/null
+++ b/ports/zstd/0002-crosscompile-windows.patch
@@ -0,0 +1,12 @@
+diff --git a/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake b/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake
+index 7adca875..8835d1c6 100644
+--- a/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake	2019-11-04 17:54:32.000000000 +0000
++++ b/build/cmake/CMakeModules/AddZstdCompilationFlags.cmake	2020-09-09 20:54:13.817515706 +0000
+@@ -52,7 +52,6 @@
+              CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
+         if( ${flag_var} )
+             separate_arguments(${flag_var})
+-            list(REMOVE_DUPLICATES ${flag_var})
+             string(REPLACE ";" " " ${flag_var} "${${flag_var}}")
+         endif()
+     endforeach ()
diff --git a/ports/zstd/CONTROL b/ports/zstd/CONTROL
index 63ca9098c..7c8ba66f2 100644
--- a/ports/zstd/CONTROL
+++ b/ports/zstd/CONTROL
@@ -1,5 +1,5 @@
 Source: zstd
 Version: 1.4.4
-Port-Version: 2
+Port-Version: 3
 Description: Zstandard - Fast real-time compression algorithm
 Homepage: https://facebook.github.io/zstd/
diff --git a/ports/zstd/portfile.cmake b/ports/zstd/portfile.cmake
index 8ed5f36e9..af1af2b2f 100644
--- a/ports/zstd/portfile.cmake
+++ b/ports/zstd/portfile.cmake
@@ -6,6 +6,7 @@ vcpkg_from_github(
     HEAD_REF dev
     PATCHES
       0001-export-zstd-config.patch
+      0002-crosscompile-windows.patch
 )
 
 if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
-- 
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