[soil] Added port for SOIL

This commit adds a new package for SOIL (https://www.lonesock.net/soil.html).

Name: SOIL
Version: 2008.7.7-1
Description: SOIL, Simple OpenGL Image Loader

ports/soil/CMakeLists.txt

@@ -0,0 +1,50 @@
+cmake_minimum_required(VERSION 3.8)
+
+project(SOIL C)
+
+option(INSTALL_HEADERS "Install header files" ON)
+
+set(INSTALL_CMAKE_DIR share/soil)
+
+add_library(SOIL STATIC
+    src/image_helper.c
+    src/stb_image_aug.c
+    src/image_DXT.c
+    src/SOIL.c)
+
+target_include_directories(SOIL INTERFACE $<INSTALL_INTERFACE:include>)
+
+if(INSTALL_HEADERS)
+    install(TARGETS SOIL
+        EXPORT SOILTargets
+        ARCHIVE DESTINATION lib
+        LIBRARY DESTINATION lib)
+
+    install(FILES src/SOIL.h
+        DESTINATION include/SOIL/)
+
+    # Prepare and install package files
+    set(SOIL_VERSION "2018.7.7")
+
+    export(TARGETS SOIL FILE "${PROJECT_BINARY_DIR}/SOILTargets.cmake")
+
+    export(PACKAGE SOIL)
+
+    # Create the SOILConfig.cmake and SOILConfigVersion files
+    configure_file(SOILConfig.cmake.in        "${PROJECT_BINARY_DIR}/SOILConfig.cmake"        @ONLY)
+    configure_file(SOILConfigVersion.cmake.in "${PROJECT_BINARY_DIR}/SOILConfigVersion.cmake" @ONLY)
+
+    # Install the SOILConfig.cmake and SOILConfigVersion.cmake
+    install(FILES
+        "${PROJECT_BINARY_DIR}/SOILConfig.cmake"
+        "${PROJECT_BINARY_DIR}/SOILConfigVersion.cmake"
+        DESTINATION "${INSTALL_CMAKE_DIR}")
+
+    # Install the export set for use with the install-tree
+    install(EXPORT SOILTargets DESTINATION
+        "${INSTALL_CMAKE_DIR}")
+else()
+    install(TARGETS SOIL
+        ARCHIVE DESTINATION lib
+        LIBRARY DESTINATION lib)
+endif()

ports/soil/CONTROL

@@ -0,0 +1,3 @@
+Source: soil
+Version: 2008.07.07-1
+Description: Simple OpenGL Image Library

ports/soil/LICENSE

@@ -0,0 +1,6 @@
+https://www.lonesock.net/soil.html
+
+Simple OpenGL Image Library
+
+License:
+Public Domain

ports/soil/SOILConfig.cmake.in

@@ -0,0 +1,13 @@
+# - Config file for the SOIL package
+# It defines the following variables
+#  SOIL_INCLUDE_DIRS - include directories for SOIL
+#  SOIL_LIBRARIES    - libraries to link against
+
+# Load targets
+get_filename_component(SOIL_CMAKE_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
+include("${SOIL_CMAKE_DIR}/SOILTargets.cmake")
+
+# Set properties
+get_target_property(SOIL_INCLUDE_DIRS SOIL INTERFACE_INCLUDE_DIRECTORIES)
+set(SOIL_LIBRARIES SOIL)
+mark_as_advanced(SOIL_INCLUDE_DIRS SOIL_LIBRARIES)

ports/soil/SOILConfigVersion.cmake.in

@@ -0,0 +1,11 @@
+set(PACKAGE_VERSION "@SOIL_VERSION@")
+
+# Check whether the requested PACKAGE_FIND_VERSION is compatible
+if("${PACKAGE_VERSION}" VERSION_LESS "${PACKAGE_FIND_VERSION}")
+    set(PACKAGE_VERSION_COMPATIBLE FALSE)
+else()
+    set(PACKAGE_VERSION_COMPATIBLE TRUE)
+    if ("${PACKAGE_VERSION}" VERSION_EQUAL "${PACKAGE_FIND_VERSION}")
+        set(PACKAGE_VERSION_EXACT TRUE)
+    endif()
+endif()

ports/soil/portfile.cmake

@@ -0,0 +1,29 @@
+include(vcpkg_common_functions)
+
+set(SOURCE_PATH "${CURRENT_BUILDTREES_DIR}/src/Simple OpenGL Image Library")
+vcpkg_download_distfile(ARCHIVE
+    URLS "http://www.lonesock.net/files/soil.zip"
+    FILENAME "soil-2008.07.07.zip"
+    SHA512 a575a84aa65b7556320779d635561341f5cf156418d0462473e5d1eb082829be3bcb30600b4887af75aeddd3715de16bdb3ca1668ebaa93eea62bacf22b79548
+)
+
+vcpkg_extract_source_archive(${ARCHIVE})
+
+file(COPY
+    ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt
+    ${CMAKE_CURRENT_LIST_DIR}/SOILConfig.cmake.in
+    ${CMAKE_CURRENT_LIST_DIR}/SOILConfigVersion.cmake.in
+    ${CMAKE_CURRENT_LIST_DIR}/LICENSE
+    DESTINATION ${SOURCE_PATH}
+)
+
+vcpkg_configure_cmake(
+    SOURCE_PATH ${SOURCE_PATH}
+    PREFER_NINJA
+    OPTIONS_DEBUG -DINSTALL_HEADERS=OFF
+)
+
+vcpkg_install_cmake()
+
+# Handle copyright
+file(INSTALL ${SOURCE_PATH}/LICENSE DESTINATION ${CURRENT_PACKAGES_DIR}/share/soil RENAME copyright)