From 24138bf3e609596074155c316c076024677f3df2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A4r=20Bj=C3=B6rklund?= <per.bjorklund@gmail.com>
Date: Sat, 11 Jan 2020 11:46:35 +0100
Subject: [PATCH] Improve patch finding

On Windows we only want to find patch.exe included with git.
All other patch.exe is broken in some way and will cause build
failures
---
 cmake/scripts/common/HandleDepends.cmake     | 12 ------
 cmake/scripts/windows/tools/patch.cmake      | 39 +++++++++++++++++++-
 cmake/scripts/windowsstore/tools/patch.cmake | 39 +++++++++++++++++++-
 3 files changed, 74 insertions(+), 16 deletions(-)

diff --git a/cmake/scripts/common/HandleDepends.cmake b/cmake/scripts/common/HandleDepends.cmake
index 40e382b94c221..78a3742145ae7 100644
--- a/cmake/scripts/common/HandleDepends.cmake
+++ b/cmake/scripts/common/HandleDepends.cmake
@@ -111,18 +111,6 @@ function(add_addon_depends addon searchpath)
             endif()
 
             set(PATCH_PROGRAM ${PATCH_EXECUTABLE})
-
-            # On Windows "patch.exe" can only handle CR-LF line-endings.
-            # Our patches have LF-only line endings - except when they
-            # have been checked out as part of a dependency hosted on Git
-            # and core.autocrlf=true.
-            if(WIN32)
-              file(READ ${patch} patch_content_hex HEX)
-              # Force handle LF-only line endings
-              if(NOT patch_content_hex MATCHES "0d0a")
-                list(APPEND PATCH_PROGRAM --binary)
-              endif()
-            endif()
           endif()
 
           set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${patch})
diff --git a/cmake/scripts/windows/tools/patch.cmake b/cmake/scripts/windows/tools/patch.cmake
index b955b4cdcfe3b..d75cb6ec5d715 100644
--- a/cmake/scripts/windows/tools/patch.cmake
+++ b/cmake/scripts/windows/tools/patch.cmake
@@ -1,6 +1,41 @@
-find_program(PATCH_FOUND NAMES patch patch.exe)
+set(_doc "Patch command line executable")
+set(_patch_path )
+
+#cmake can't handle ENV{PROGRAMFILES(X86)} so
+#use a hack where we append it ourselves
+set(_patch_path
+  "$ENV{LOCALAPPDATA}/Programs/Git/bin"
+  "$ENV{LOCALAPPDATA}/Programs/Git/usr/bin"
+  "$ENV{APPDATA}/Programs/Git/bin"
+  "$ENV{APPDATA}/Programs/Git/usr/bin"
+  "$ENV{PROGRAMFILES}/Git/bin"
+  "$ENV{PROGRAMFILES}/Git/usr/bin"
+  "$ENV{PROGRAMFILES} (x86)/Git/bin"
+  "$ENV{PROGRAMFILES} (x86)/Git/usr/bin"
+  )
+
+# First search the PATH
+find_program(PATCH_EXECUTABLE
+  NAME patch
+  PATHS ${_patch_path}
+  DOC ${_doc}
+  NO_DEFAULT_PATH
+  )
+
+if(PATCH_EXECUTABLE AND NOT TARGET Patch::patch AND NOT PATCH_EXECUTABLE MATCHES Strawberry)
+  add_executable(Patch::patch IMPORTED)
+  set_property(TARGET Patch::patch PROPERTY IMPORTED_LOCATION ${PATCH_EXECUTABLE})
+endif()
+
+unset(_patch_path)
+unset(_doc)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Patch
+                                  REQUIRED_VARS PATCH_EXECUTABLE)
+
 if(PATCH_FOUND)
-  message(STATUS "patch utility found at ${PATCH_FOUND}")
+  message(STATUS "patch utility found at ${PATCH_EXECUTABLE}")
 else()
   set(PATCH_ARCHIVE_NAME "patch-2.7.6-bin")
   set(PATCH_ARCHIVE "${PATCH_ARCHIVE_NAME}.zip")
diff --git a/cmake/scripts/windowsstore/tools/patch.cmake b/cmake/scripts/windowsstore/tools/patch.cmake
index b955b4cdcfe3b..d75cb6ec5d715 100644
--- a/cmake/scripts/windowsstore/tools/patch.cmake
+++ b/cmake/scripts/windowsstore/tools/patch.cmake
@@ -1,6 +1,41 @@
-find_program(PATCH_FOUND NAMES patch patch.exe)
+set(_doc "Patch command line executable")
+set(_patch_path )
+
+#cmake can't handle ENV{PROGRAMFILES(X86)} so
+#use a hack where we append it ourselves
+set(_patch_path
+  "$ENV{LOCALAPPDATA}/Programs/Git/bin"
+  "$ENV{LOCALAPPDATA}/Programs/Git/usr/bin"
+  "$ENV{APPDATA}/Programs/Git/bin"
+  "$ENV{APPDATA}/Programs/Git/usr/bin"
+  "$ENV{PROGRAMFILES}/Git/bin"
+  "$ENV{PROGRAMFILES}/Git/usr/bin"
+  "$ENV{PROGRAMFILES} (x86)/Git/bin"
+  "$ENV{PROGRAMFILES} (x86)/Git/usr/bin"
+  )
+
+# First search the PATH
+find_program(PATCH_EXECUTABLE
+  NAME patch
+  PATHS ${_patch_path}
+  DOC ${_doc}
+  NO_DEFAULT_PATH
+  )
+
+if(PATCH_EXECUTABLE AND NOT TARGET Patch::patch AND NOT PATCH_EXECUTABLE MATCHES Strawberry)
+  add_executable(Patch::patch IMPORTED)
+  set_property(TARGET Patch::patch PROPERTY IMPORTED_LOCATION ${PATCH_EXECUTABLE})
+endif()
+
+unset(_patch_path)
+unset(_doc)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Patch
+                                  REQUIRED_VARS PATCH_EXECUTABLE)
+
 if(PATCH_FOUND)
-  message(STATUS "patch utility found at ${PATCH_FOUND}")
+  message(STATUS "patch utility found at ${PATCH_EXECUTABLE}")
 else()
   set(PATCH_ARCHIVE_NAME "patch-2.7.6-bin")
   set(PATCH_ARCHIVE "${PATCH_ARCHIVE_NAME}.zip")