[stb] update and add cmake module

ports/darknet/CONTROL

@@ -1,5 +1,5 @@
 Source: darknet
-Version: 0.2.5.1
+Version: 0.2.5.1-1
 Description: Darknet is an open source neural network framework written in C and CUDA. You only look once (YOLO) is a state-of-the-art, real-time object detection system, best example of darknet functionalities.
 Build-Depends: pthreads (windows), stb
 
@@ -8,7 +8,7 @@ Build-Depends: cuda
 Description: Build darknet with support for CUDA
 
 Feature: cudnn
-Build-Depends: darknet[cuda]
+Build-Depends: darknet[cuda], cudnn
 Description: Build darknet with support for CUDNN
 
 Feature: opencv-base

ports/darknet/portfile.cmake

@@ -94,6 +94,7 @@ endif()
 file(REMOVE_RECURSE ${SOURCE_PATH}/3rdparty)
 file(REMOVE ${SOURCE_PATH}/cmake/Modules/FindPThreads_windows.cmake)
 file(REMOVE ${SOURCE_PATH}/cmake/Modules/FindCUDNN.cmake)
+file(REMOVE ${SOURCE_PATH}/cmake/Modules/FindStb.cmake)
 
 vcpkg_configure_cmake(
   SOURCE_PATH ${SOURCE_PATH}

ports/stb/CONTROL

@@ -1,4 +1,4 @@
 Source: stb
-Version: 2019-07-11
+Version: 2019-08-17
 Homepage: https://github.com/nothings/stb
-Description: stb single-file public domain libraries for C/C++
+Description: public domain header-only libraries

ports/stb/FindStb.cmake

@@ -0,0 +1,29 @@
+# Distributed under the OSI-approved BSD 3-Clause License.
+
+#.rst:
+# FindStb
+# ------------
+#
+# Find the Stb include headers.
+#
+# Result Variables
+# ^^^^^^^^^^^^^^^^
+#
+# This module defines the following variables:
+#
+# ``Stb_FOUND``
+#   True if Stb library found
+#
+# ``Stb_INCLUDE_DIR``
+#   Location of Stb headers
+#
+
+include(${CMAKE_ROOT}/Modules/FindPackageHandleStandardArgs.cmake)
+include(${CMAKE_ROOT}/Modules/SelectLibraryConfigurations.cmake)
+
+if(NOT Stb_INCLUDE_DIR)
+  find_path(Stb_INCLUDE_DIR NAMES stb_image.h PATHS ${Stb_DIR} PATH_SUFFIXES include)
+endif()
+
+find_package_handle_standard_args(Stb DEFAULT_MSG Stb_INCLUDE_DIR)
+mark_as_advanced(Stb_INCLUDE_DIR)

ports/stb/portfile.cmake

@@ -1,17 +1,14 @@
-#header-only library
-include(vcpkg_common_functions)
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO nothings/stb
-    REF c72a95d766b8cbf5514e68d3ddbf6437ac9425b1
-    SHA512 2be9b2d7848fca133d5733ebb0fdd1f357195f38a2f2b471af3657468f00a75cc94f029ace6127e748da80e0f86933c16a554593a21d8a9057b7691d39facf4b
+    REF 052dce117ed989848a950308bd99eef55525dfb1
+    SHA512 490be1e727ff77385ce6050c03774ee6819fb194ac38076be98635091ce5271851a9e5ac9763bea961758837735ed6fc680f4fee645acf419457460c403c9f20
     HEAD_REF master
 )
 
-# Put the licence file where vcpkg expects it
-file(COPY ${SOURCE_PATH}/README.md DESTINATION ${CURRENT_PACKAGES_DIR}/share/stb/README.md)
-file(RENAME ${CURRENT_PACKAGES_DIR}/share/stb/README.md ${CURRENT_PACKAGES_DIR}/share/stb/copyright)
-
-# Copy the stb header files
 file(GLOB HEADER_FILES ${SOURCE_PATH}/*.h)
 file(COPY ${HEADER_FILES} DESTINATION ${CURRENT_PACKAGES_DIR}/include)
+
+file(INSTALL ${SOURCE_PATH}/README.md DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)
+file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/FindStb.cmake" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT})
+file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/vcpkg-cmake-wrapper.cmake" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT})

ports/stb/vcpkg-cmake-wrapper.cmake

@@ -0,0 +1,8 @@
+set(STB_PREV_MODULE_PATH ${CMAKE_MODULE_PATH})
+list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR})
+
+if(NOT Stb_INCLUDE_DIR)
+  _find_package(${ARGS})
+endif()
+
+set(CMAKE_MODULE_PATH ${STB_PREV_MODULE_PATH})