[freeglut] enable building on non-win32 (#6298)

ports/freeglut/CONTROL

@@ -1,3 +1,3 @@
 Source: freeglut
-Version: 3.0.0-5
+Version: 3.0.0-6
 Description: Open source implementation of GLUT with source and binary backwards compatibility.

ports/freeglut/macOS_Xquartz.patch

@@ -0,0 +1,21 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index f68b27f..4339858 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -220,6 +220,16 @@ ENDIF()
+ IF(FREEGLUT_GLES)
+   ADD_DEFINITIONS(-DFREEGLUT_GLES)
+   LIST(APPEND LIBS GLESv2 GLESv1_CM EGL)
++ELSEIF(APPLE)
++  # on OSX FindOpenGL uses framework version of OpenGL, but we need X11 version
++  FIND_PATH(GLX_INCLUDE_DIR GL/glx.h
++            PATHS /opt/X11/include /usr/X11/include /usr/X11R6/include)
++  FIND_LIBRARY(OPENGL_gl_LIBRARY GL
++               PATHS /opt/X11/lib /usr/X11/lib /usr/X11R6/lib)
++  FIND_LIBRARY(OPENGL_glu_LIBRARY GLU
++               PATHS /opt/X11/lib /usr/X11/lib /usr/X11R6/lib)
++  LIST(APPEND LIBS ${OPENGL_gl_LIBRARY})
++  INCLUDE_DIRECTORIES(${GLX_INCLUDE_DIR})
+ ELSE()
+   FIND_PACKAGE(OpenGL REQUIRED)
+   LIST(APPEND LIBS ${OPENGL_gl_LIBRARY})

ports/freeglut/portfile.cmake

@@ -1,22 +1,23 @@
 include(vcpkg_common_functions)
 set(SOURCE_PATH ${CURRENT_BUILDTREES_DIR}/src/freeglut-3.0.0)
 vcpkg_download_distfile(ARCHIVE
-    URLS "https://sourceforge.net/projects/freeglut/files/freeglut/3.0.0/freeglut-3.0.0.tar.gz/download"
+    URLS "http://downloads.sourceforge.net/project/freeglut/freeglut/3.0.0/freeglut-3.0.0.tar.gz"
     FILENAME "freeglut-3.0.0.tar.gz"
     SHA512 9c45d5b203b26a7ff92331b3e080a48e806c92fbbe7c65d9262dd18c39cd6efdad8a795a80f499a2d23df84b4909dbd7c1bab20d7dd3555d3d88782ce9dd15b0
 )
-vcpkg_extract_source_archive(${ARCHIVE})
+
+vcpkg_extract_source_archive_ex(
+  OUT_SOURCE_PATH SOURCE_PATH
+  ARCHIVE ${ARCHIVE}
+  PATCHES
+    use_targets_to_export_x11_dependency.patch
+    macOS_Xquartz.patch
+)
 
 if(VCPKG_CMAKE_SYSTEM_NAME AND NOT VCPKG_CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
-    message("Freeglut currently requires the following libraries from the system package manager:\n    opengl\n    glu\n    libx11\n\nThese can be installed on Ubuntu systems via apt-get install libxi-dev libgl1-mesa-dev libglu1-mesa-dev mesa-common-dev")
+    message("Freeglut currently requires the following libraries from the system package manager:\n    opengl\n    glu\n    libx11\n\nThese can be installed on Ubuntu systems via apt-get install libxi-dev libgl1-mesa-dev libglu1-mesa-dev mesa-common-dev\nOn macOS Xquartz is required.")
 endif()
 
-# disable debug suffix, because FindGLUT.cmake from CMake 3.8 doesn't support it
-file(READ ${SOURCE_PATH}/CMakeLists.txt FREEGLUT_CMAKELISTS)
-string(REPLACE "SET( CMAKE_DEBUG_POSTFIX \"d\" )"
-               "\#SET( CMAKE_DEBUG_POSTFIX \"d\" )" FREEGLUT_CMAKELISTS "${FREEGLUT_CMAKELISTS}")
-file(WRITE ${SOURCE_PATH}/CMakeLists.txt "${FREEGLUT_CMAKELISTS}")
-
 if (VCPKG_LIBRARY_LINKAGE STREQUAL dynamic)
     set(FREEGLUT_STATIC OFF)
     set(FREEGLUT_DYNAMIC ON)
@@ -27,8 +28,10 @@ endif()
 
 # Patch header
 file(READ ${SOURCE_PATH}/include/GL/freeglut_std.h FREEGLUT_STDH)
-string(REGEX REPLACE "\"freeglut[_a-z]+.lib\""
+string(REGEX REPLACE "\"freeglut_static.lib\""
                      "\"freeglut.lib\"" FREEGLUT_STDH "${FREEGLUT_STDH}")
+string(REGEX REPLACE "\"freeglut_staticd.lib\""
+                     "\"freeglutd.lib\"" FREEGLUT_STDH "${FREEGLUT_STDH}")
 file(WRITE ${SOURCE_PATH}/include/GL/freeglut_std.h "${FREEGLUT_STDH}")
 
 vcpkg_configure_cmake(
@@ -46,7 +49,7 @@ vcpkg_install_cmake()
 if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
     if(NOT VCPKG_CMAKE_SYSTEM_NAME OR VCPKG_CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
         file(RENAME ${CURRENT_PACKAGES_DIR}/lib/freeglut_static.lib ${CURRENT_PACKAGES_DIR}/lib/freeglut.lib)
-        file(RENAME ${CURRENT_PACKAGES_DIR}/debug/lib/freeglut_static.lib ${CURRENT_PACKAGES_DIR}/debug/lib/freeglut.lib)
+        file(RENAME ${CURRENT_PACKAGES_DIR}/debug/lib/freeglut_staticd.lib ${CURRENT_PACKAGES_DIR}/debug/lib/freeglutd.lib)
     endif()
 endif()
 

ports/freeglut/use_targets_to_export_x11_dependency.patch

@@ -0,0 +1,29 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 0d3260b..edf034a 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -257,8 +257,6 @@ ENDIF(CMAKE_COMPILER_IS_GNUCC)
+ INCLUDE(CheckIncludeFiles)
+ IF(UNIX AND NOT(ANDROID OR BLACKBERRY))
+     FIND_PACKAGE(X11 REQUIRED)
+-    INCLUDE_DIRECTORIES(${X11_INCLUDE_DIR})
+-    LIST(APPEND LIBS ${X11_LIBRARIES})
+     IF(X11_Xrandr_FOUND)
+         SET(HAVE_X11_EXTENSIONS_XRANDR_H TRUE)
+         LIST(APPEND LIBS ${X11_Xrandr_LIB})
+@@ -339,9 +337,15 @@ ENDIF()
+ 
+ IF(FREEGLUT_BUILD_SHARED_LIBS)
+     ADD_LIBRARY(freeglut SHARED ${FREEGLUT_SRCS})
++    IF(UNIX AND NOT(ANDROID OR BLACKBERRY))
++        TARGET_LINK_LIBRARIES(freeglut PRIVATE X11::X11)
++    ENDIF()
+ ENDIF()
+ IF(FREEGLUT_BUILD_STATIC_LIBS)
+     ADD_LIBRARY(freeglut_static STATIC ${FREEGLUT_SRCS})
++    IF(UNIX AND NOT(ANDROID OR BLACKBERRY))
++        TARGET_LINK_LIBRARIES(freeglut_static PRIVATE X11::X11)
++    ENDIF()
+ ENDIF()
+ 
+