From 24482499ea5cfc1a55015456dada84da5124b3cd Mon Sep 17 00:00:00 2001
From: Lemures Lemniscati <lemures.lemniscati@gmail.com>
Date: Sat, 1 Aug 2020 21:21:21 +0900
Subject: FindPerlLibs: Add versioned perl library name for Cygwin

Based on downstream patch from Cygwin package for CMake by Marco Atzeri:

* https://github.com/matzeri/cygwin-pkg/blob/64864eb8f0d635ea44226e4b9a41a7ca59a1c7dd/cmake/perl-libs.patch
---
 Modules/FindPerlLibs.cmake | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Modules/FindPerlLibs.cmake b/Modules/FindPerlLibs.cmake
index 7e27f31..d576b86 100644
--- a/Modules/FindPerlLibs.cmake
+++ b/Modules/FindPerlLibs.cmake
@@ -108,6 +108,9 @@ if (PERL_EXECUTABLE)
   if (NOT PERL_POSSIBLE_LIBRARY_NAMES)
     set(PERL_POSSIBLE_LIBRARY_NAMES perl${PERL_VERSION_STRING} perl)
   endif()
+  if(CMAKE_SYSTEM_NAME MATCHES "CYGWIN")
+    list (APPEND PERL_POSSIBLE_LIBRARY_NAMES perl${PERL_VERSION_STRING})
+  endif()
   if (CMAKE_SYSTEM_NAME MATCHES "MSYS|CYGWIN")
     # on MSYS and CYGWIN environments, current perl -V:libperl gives shared library name
     # rather than the import library. So, extends possible library names
-- 
cgit v0.12


From 8edbc59e4655cb791328d27a76f37d0c8a2973ac Mon Sep 17 00:00:00 2001
From: Lemures Lemniscati <lemures.lemniscati@gmail.com>
Date: Sat, 1 Aug 2020 21:21:22 +0900
Subject: install: Use case-sensitive pattern matching on Cygwin

Based on downstream patch from Cygwin package for CMake by Marco Atzeri:

* https://github.com/matzeri/cygwin-pkg/blob/64864eb8f0d635ea44226e4b9a41a7ca59a1c7dd/cmake/3.17.3-case-sensitivity.patch
---
 Source/cmInstallCommand.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/cmInstallCommand.cxx b/Source/cmInstallCommand.cxx
index ddd6c22..83609e2 100644
--- a/Source/cmInstallCommand.cxx
+++ b/Source/cmInstallCommand.cxx
@@ -1157,7 +1157,7 @@ bool HandleDirectoryMode(std::vector<std::string> const& args,
     } else if (doing == DoingRegex) {
       literal_args += " REGEX \"";
 // Match rules are case-insensitive on some platforms.
-#if defined(_WIN32) || defined(__APPLE__) || defined(__CYGWIN__)
+#if defined(_WIN32) || defined(__APPLE__)
       std::string regex = cmSystemTools::LowerCase(args[i]);
 #else
       std::string regex = args[i];
-- 
cgit v0.12


From af666acdf4a73323c750f2332c35e38f5b8f4cea Mon Sep 17 00:00:00 2001
From: Lemures Lemniscati <lemures.lemniscati@gmail.com>
Date: Sat, 1 Aug 2020 21:21:23 +0900
Subject: FindOpenGL: Drop Cygwin-specific behavior and use POSIX code path

Based on downstream patch from Cygwin package for CMake by Marco Atzeri:

* https://github.com/matzeri/cygwin-pkg/blob/64864eb8f0d635ea44226e4b9a41a7ca59a1c7dd/cmake/3.17.3-opengl.patch
---
 Modules/FindOpenGL.cmake | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/Modules/FindOpenGL.cmake b/Modules/FindOpenGL.cmake
index 74392da..e1271d4 100644
--- a/Modules/FindOpenGL.cmake
+++ b/Modules/FindOpenGL.cmake
@@ -132,19 +132,7 @@ endforeach()
 
 set(_OpenGL_CACHE_VARS)
 
-if (CYGWIN)
-  find_path(OPENGL_INCLUDE_DIR GL/gl.h )
-  list(APPEND _OpenGL_REQUIRED_VARS OPENGL_INCLUDE_DIR)
-
-  find_library(OPENGL_gl_LIBRARY opengl32 )
-  find_library(OPENGL_glu_LIBRARY glu32 )
-
-  list(APPEND _OpenGL_CACHE_VARS
-    OPENGL_INCLUDE_DIR
-    OPENGL_gl_LIBRARY
-    OPENGL_glu_LIBRARY
-    )
-elseif (WIN32)
+if (WIN32)
 
   if(BORLAND)
     set (OPENGL_gl_LIBRARY import32 CACHE STRING "OpenGL library for win32")
-- 
cgit v0.12


From ecc19617686f29429e9b4dd10ff2bbc8e8572d5e Mon Sep 17 00:00:00 2001
From: Lemures Lemniscati <lemures.lemniscati@gmail.com>
Date: Sat, 1 Aug 2020 21:21:24 +0900
Subject: FindTclsh: Drop Cygwin-specific behavior and use POSIX code path

Based on downstream patch from Cygwin package for CMake by Marco Atzeri:

* https://github.com/matzeri/cygwin-pkg/blob/64864eb8f0d635ea44226e4b9a41a7ca59a1c7dd/cmake/3.17.3-findtclsh.patch
---
 Modules/FindTclsh.cmake | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/Modules/FindTclsh.cmake b/Modules/FindTclsh.cmake
index 82be473..f306d5b 100644
--- a/Modules/FindTclsh.cmake
+++ b/Modules/FindTclsh.cmake
@@ -15,15 +15,8 @@ library is.  This code sets the following variables:
 
   TCLSH_FOUND = TRUE if tclsh has been found
   TCL_TCLSH = the path to the tclsh executable
-
-In cygwin, look for the cygwin version first.  Don't look for it later
-to avoid finding the cygwin version on a Win32 build.
 #]=======================================================================]
 
-if(CYGWIN)
-  find_program(TCL_TCLSH NAMES cygtclsh83 cygtclsh80)
-endif()
-
 get_filename_component(TK_WISH_PATH "${TK_WISH}" PATH)
 get_filename_component(TK_WISH_PATH_PARENT "${TK_WISH_PATH}" PATH)
 string(REGEX REPLACE
-- 
cgit v0.12