[libsrtp] Add test port, fix export config (#45150)

ports/libsrtp/cmake-config.diff

@@ -0,0 +1,44 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index a08247a..7ccbf85 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -285,7 +285,7 @@ target_include_directories(srtp2 PUBLIC
+ )
+ if(ENABLE_OPENSSL)
+   target_include_directories(srtp2 PRIVATE ${OPENSSL_INCLUDE_DIR})
+-  target_link_libraries(srtp2 OpenSSL::Crypto)
++  target_link_libraries(srtp2 PRIVATE OpenSSL::Crypto)
+ elseif(ENABLE_MBEDTLS)
+   target_include_directories(srtp2 PRIVATE ${MBEDTLS_INCLUDE_DIRS})
+   target_link_libraries(srtp2 ${MBEDTLS_LIBRARIES})
+@@ -294,7 +294,7 @@ elseif(ENABLE_NSS)
+   target_link_libraries(srtp2 ${NSS_LIBRARIES})
+ endif()
+ if(WIN32)
+-  target_link_libraries(srtp2 ws2_32)
++  target_link_libraries(srtp2 PRIVATE ws2_32)
+   target_compile_definitions(srtp2 PUBLIC _CRT_SECURE_NO_WARNINGS)
+ endif()
+ 
+@@ -491,7 +491,7 @@ include(CMakePackageConfigHelpers)
+ # Generate the config file that is includes the exports
+ configure_package_config_file(${CMAKE_CURRENT_SOURCE_DIR}/Config.cmake.in
+   "${CMAKE_CURRENT_BINARY_DIR}/libSRTPConfig.cmake"
+-  INSTALL_DESTINATION "${CONFIG_FILE_DIR}"
++  INSTALL_DESTINATION lib/cmake/libSRTP
+   NO_SET_AND_CHECK_MACRO
+   NO_CHECK_REQUIRED_COMPONENTS_MACRO
+ )
+diff --git a/Config.cmake.in b/Config.cmake.in
+index 0ad9b17..c9ce5a7 100644
+--- a/Config.cmake.in
++++ b/Config.cmake.in
+@@ -1,3 +1,8 @@
+ @PACKAGE_INIT@
+ 
++if("@ENABLE_OPENSSL@")
++    include(CMakeFindDependencyMacro)
++    find_dependency(OpenSSL)
++endif()
++
+ include ( "${CMAKE_CURRENT_LIST_DIR}/libSRTPTargets.cmake" )

ports/libsrtp/cmake-project-include.cmake

@@ -1,3 +1,20 @@
 if(MSVC)
     string(APPEND CMAKE_CFLAGS " /wd4703")
 endif()
+
+block(SCOPE_FOR VARIABLES)
+    set(prefix [[${pcfiledir}/../..]])
+    set(libdir [[${prefix}/lib]])
+    set(includedir [[${prefix}/include]])
+    set(PACKAGE_NAME "${PROJECT_NAME}")
+    set(PACKAGE_VERSION "${PROJECT_VERSION}")
+    set(LIBS "")
+    if(WIN32)
+        set(LIBS "-lws2_32")
+    endif()
+    configure_file("${PROJECT_SOURCE_DIR}/libsrtp2.pc.in" "${PROJECT_BINARY_DIR}/libsrtp2.pc" @ONLY)
+    if(ENABLE_OPENSSL)
+        file(APPEND "${PROJECT_BINARY_DIR}/libsrtp2.pc" "Requires.private: libcrypto")
+    endif()
+    install(FILES "${PROJECT_BINARY_DIR}/libsrtp2.pc" DESTINATION "lib/pkgconfig")
+endblock()

ports/libsrtp/portfile.cmake

@@ -4,6 +4,7 @@ vcpkg_from_github(
     REF "v${VERSION}"
     SHA512 eb42cc1755acd5677351fc058e2f45314ba66b590bce80944ea12aa3780953ce4c1c6211979729304d753e6c0fd325647adafc38c20c6af8482ce6f552022896
     PATCHES
+        cmake-config.diff
         fix-runtime-destination.patch
 )
 
@@ -21,8 +22,8 @@ vcpkg_cmake_configure(
 )
 
 vcpkg_cmake_install()
-
 vcpkg_cmake_config_fixup(CONFIG_PATH lib/cmake/libSRTP)
+vcpkg_fixup_pkgconfig()
 
 file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")
 

ports/libsrtp/vcpkg.json

@@ -1,6 +1,7 @@
 {
   "name": "libsrtp",
   "version": "2.7.0",
+  "port-version": 1,
   "description": "This package provides an implementation of the Secure Real-time Transport Protocol (SRTP), the Universal Security Transform (UST), and a supporting cryptographic kernel.",
   "homepage": "https://github.com/cisco/libsrtp/",
   "license": "BSD-3-Clause",

scripts/test_ports/vcpkg-ci-libsrtp/portfile.cmake

@@ -0,0 +1,10 @@
+set(VCPKG_POLICY_EMPTY_PACKAGE enabled)
+
+vcpkg_find_acquire_program(PKGCONFIG)
+
+vcpkg_cmake_configure(
+    SOURCE_PATH "${CURRENT_PORT_DIR}/project"
+    OPTIONS
+        "-DPKG_CONFIG_EXECUTABLE=${PKGCONFIG}"
+)
+vcpkg_cmake_build()

scripts/test_ports/vcpkg-ci-libsrtp/project/CMakeLists.txt

@@ -0,0 +1,13 @@
+cmake_minimum_required(VERSION 3.30)
+project(libsrtp-test C)
+
+find_package(libSRTP CONFIG REQUIRED)
+
+add_executable(main main.c)
+target_link_libraries(main PRIVATE libSRTP::srtp2)
+
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(libsrtp_pc libsrtp2 REQUIRED IMPORTED_TARGET)
+
+add_executable(main-pkconfig main.c)
+target_link_libraries(main-pkconfig PRIVATE PkgConfig::libsrtp_pc)

scripts/test_ports/vcpkg-ci-libsrtp/project/main.c

@@ -0,0 +1,8 @@
+#include <stdio.h>
+#include <srtp2/srtp.h>
+
+int main()
+{
+    printf("libsrtp versions: %s\n", srtp_get_version_string());
+    return 0;
+}

scripts/test_ports/vcpkg-ci-libsrtp/vcpkg.json

@@ -0,0 +1,33 @@
+{
+  "name": "vcpkg-ci-libsrtp",
+  "version-string": "ci",
+  "description": "Port to force features of libsrtp within CI",
+  "homepage": "https://github.com/microsoft/vcpkg",
+  "license": "MIT",
+  "dependencies": [
+    {
+      "name": "libsrtp",
+      "default-features": false
+    },
+    {
+      "name": "vcpkg-cmake",
+      "host": true
+    }
+  ],
+  "default-features": [
+    "all"
+  ],
+  "features": {
+    "all": {
+      "description": "Test all features",
+      "dependencies": [
+        {
+          "name": "libsrtp",
+          "features": [
+            "openssl"
+          ]
+        }
+      ]
+    }
+  }
+}

versions/baseline.json

@@ -5306,7 +5306,7 @@
     },
     "libsrtp": {
       "baseline": "2.7.0",
-      "port-version": 0
+      "port-version": 1
     },
     "libssh": {
       "baseline": "0.10.6",

versions/l-/libsrtp.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "eae4adb49b2e66ded0e95785dee1155b587addf1",
+      "version": "2.7.0",
+      "port-version": 1
+    },
     {
       "git-tree": "0f04591cad0e2ac930c04051a0f62a440dc8753c",
       "version": "2.7.0",