[libwebsockets] Fix usage, export include path (#17003)

* [libwebsockets] Fix usage, export include path

* update version record

ports/libwebsockets/CONTROL

@@ -1,7 +0,0 @@
-Source: libwebsockets
-Version: 4.1.6
-Port-Version: 0
-Build-Depends: zlib, openssl, libuv, pthreads (windows)
-Homepage: https://github.com/warmcat/libwebsockets
-Description: Libwebsockets is a lightweight pure C library built to use minimal CPU and memory resources, and provide fast throughput in both directions as client or server.
-Supports: !(arm|uwp)

ports/libwebsockets/export-include-path.patch

@@ -0,0 +1,48 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 06d9eec..5606601 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -840,8 +840,8 @@ else()
+   set(DEF_INSTALL_CMAKE_DIR lib${LIB_SUFFIX}/cmake/libwebsockets)
+ endif()
+ 
+-if (DEFINED REL_INCLUDE_DIR)
+-    set(LWS__INCLUDE_DIRS "\${LWS_CMAKE_DIR}/${REL_INCLUDE_DIR}")
++if (1)
++    set(LWS__INCLUDE_DIRS "\${CMAKE_CURRENT_LIST_DIR}/../include")
+ endif() 
+ 
+ configure_file(${PROJECT_SOURCE_DIR}/cmake/libwebsockets-config.cmake.in
+@@ -853,10 +853,6 @@ configure_file(${PROJECT_SOURCE_DIR}/cmake/libwebsockets-config-version.cmake.in
+                 ${PROJECT_BINARY_DIR}/libwebsockets-config-version.cmake 
+                 @ONLY)
+ 
+-# Generate the config file for the build-tree.
+-set(LWS__INCLUDE_DIRS 
+-    "${PROJECT_SOURCE_DIR}/lib"
+-    "${PROJECT_BINARY_DIR}")
+ set(LIBWEBSOCKETS_INCLUDE_DIRS ${LWS__INCLUDE_DIRS} CACHE PATH "Libwebsockets include directories")
+ configure_file(${PROJECT_SOURCE_DIR}/cmake/libwebsockets-config.cmake.in
+                 ${PROJECT_BINARY_DIR}/libwebsockets-config.cmake 
+diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
+index 82b9170..eab2bf0 100644
+--- a/lib/CMakeLists.txt
++++ b/lib/CMakeLists.txt
+@@ -153,7 +153,7 @@ if (LWS_WITH_STATIC)
+ 	add_library(websockets STATIC ${SOURCES})# ${HDR_PUBLIC})
+ 	set_target_properties(websockets PROPERTIES LINKER_LANGUAGE C)
+ 	list(APPEND LWS_LIBRARIES websockets)
+-	target_include_directories(websockets PRIVATE ${LWS_LIB_BUILD_INC_PATHS})
++	target_include_directories(websockets PRIVATE $<BUILD_INTERFACE:${LWS_LIB_BUILD_INC_PATHS}> PUBLIC $<INSTALL_INTERFACE:include>)
+ 
+ 	if (WIN32)
+ 		# Windows uses the same .lib ending for static libraries and shared
+@@ -173,7 +173,7 @@ if (LWS_WITH_SHARED)
+ 	add_library(websockets_shared SHARED ${SOURCES} ${RESOURCES})# ${HDR_PUBLIC})
+ 	set_target_properties(websockets_shared PROPERTIES LINKER_LANGUAGE C)
+ 	list(APPEND LWS_LIBRARIES websockets_shared)
+-	target_include_directories(websockets_shared PRIVATE ${LWS_LIB_BUILD_INC_PATHS})
++	target_include_directories(websockets_shared PRIVATE $<BUILD_INTERFACE:${LWS_LIB_BUILD_INC_PATHS}> PUBLIC $<INSTALL_INTERFACE:include>)
+ 
+ 	# We want the shared lib to be named "libwebsockets"
+ 	# not "libwebsocket_shared".

ports/libwebsockets/portfile.cmake

@@ -7,8 +7,9 @@ vcpkg_from_github(
     SHA512 7632439f8cdc87d275a0524b87ea5cd19c3401c1b7bb7fcf673eef3e1ab36c0ec022d2dce050d07bc106af3166575882507a56ac829a4361329311484dc2c5c4
     HEAD_REF master
     PATCHES
-        CMakeLists.patch
-        fix-build-error.patch   
+        fix-dependency-libuv.patch
+        fix-build-error.patch
+        export-include-path.patch
 )
 
 string(COMPARE EQUAL "${VCPKG_LIBRARY_LINKAGE}" "static" LWS_WITH_STATIC)

ports/libwebsockets/vcpkg.json

@@ -0,0 +1,17 @@
+{
+  "name": "libwebsockets",
+  "version-semver": "4.1.6",
+  "port-version": 1,
+  "description": "Libwebsockets is a lightweight pure C library built to use minimal CPU and memory resources, and provide fast throughput in both directions as client or server.",
+  "homepage": "https://github.com/warmcat/libwebsockets",
+  "supports": "!(arm | uwp)",
+  "dependencies": [
+    "libuv",
+    "openssl",
+    {
+      "name": "pthreads",
+      "platform": "!windows"
+    },
+    "zlib"
+  ]
+}

versions/baseline.json

@@ -3602,7 +3602,7 @@
     },
     "libwebsockets": {
       "baseline": "4.1.6",
-      "port-version": 0
+      "port-version": 1
     },
     "libxdiff": {
       "baseline": "0.23",

versions/l-/libwebsockets.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "1846ac46a72330104a9a4c13042cdb19ae8a42c4",
+      "version-semver": "4.1.6",
+      "port-version": 1
+    },
     {
       "git-tree": "d980cd5098de3cfba2ecd8e63490cf1013545dfd",
       "version-string": "4.1.6",