[alsa] Add cmake wrapper (#30960)

* [alsa] Add cmake wrapper.

This adds the imported location for both Debug and Release
configurations, and sets the target's INTERFACE_LINK_LIBRARIES and the
ALSA_LIBRARIES variable to the same libraries as the pkg-config file.

* [alsa] Update baseline.

ports/alsa/portfile.cmake

@@ -57,6 +57,8 @@ vcpkg_configure_make(
 vcpkg_install_make()
 vcpkg_fixup_pkgconfig()
 
+file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/vcpkg-cmake-wrapper.cmake" DESTINATION "${CURRENT_PACKAGES_DIR}/share/${PORT}")
+
 file(REMOVE_RECURSE 
     "${CURRENT_PACKAGES_DIR}/debug/include"
     "${CURRENT_PACKAGES_DIR}/debug/share"

ports/alsa/vcpkg-cmake-wrapper.cmake

@@ -0,0 +1,96 @@
+find_path(
+  ALSA_INCLUDE_DIR
+  NAMES alsa/asoundlib.h
+  PATHS "${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/include"
+  NO_DEFAULT_PATH
+)
+
+find_library(
+  ALSA_LIBRARY_DEBUG
+  NAMES asound
+  PATHS "${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/debug/lib"
+  NO_DEFAULT_PATH
+)
+
+find_library(
+  ALSA_LIBRARY_RELEASE
+  NAMES asound
+  PATHS "${_VCPKG_INSTALLED_DIR}/${VCPKG_TARGET_TRIPLET}/lib"
+  NO_DEFAULT_PATH
+)
+
+include(SelectLibraryConfigurations)
+select_library_configurations(ALSA)
+unset(ALSA_FOUND)
+
+if(NOT ALSA_INCLUDE_DIR OR NOT ALSA_LIBRARY)
+  message(FATAL_ERROR "Broken installation of the alsa vcpkg port")
+endif()
+
+_find_package(${ARGS})
+
+if(TARGET ALSA::ALSA)
+  if(ALSA_LIBRARY_DEBUG)
+    set_property(
+      TARGET ALSA::ALSA
+      APPEND
+      PROPERTY IMPORTED_CONFIGURATIONS DEBUG
+    )
+    set_target_properties(
+      ALSA::ALSA
+      PROPERTIES
+        IMPORTED_LOCATION_DEBUG "${ALSA_LIBRARY_DEBUG}"
+    )
+  endif()
+  if(ALSA_LIBRARY_RELEASE)
+    set_property(
+      TARGET ALSA::ALSA
+      APPEND
+      PROPERTY IMPORTED_CONFIGURATIONS RELEASE
+    )
+    set_target_properties(
+      ALSA::ALSA
+      PROPERTIES
+        IMPORTED_LOCATION_RELEASE "${ALSA_LIBRARY_RELEASE}"
+    )
+  endif()
+
+  find_library(Z_VCPKG_HAS_LIBM NAMES m)
+  if(Z_VCPKG_HAS_LIBM)
+    list(APPEND ALSA_LIBRARIES m)
+    set_property(
+      TARGET ALSA::ALSA
+      APPEND
+      PROPERTY INTERFACE_LINK_LIBRARIES m
+    )
+  endif()
+
+  if(CMAKE_DL_LIBS)
+    list(APPEND ALSA_LIBRARIES ${CMAKE_DL_LIBS})
+    set_property(
+      TARGET ALSA::ALSA
+      APPEND
+      PROPERTY INTERFACE_LINK_LIBRARIES ${CMAKE_DL_LIBS}
+    )
+  endif()
+
+  find_package(Threads)
+  if(TARGET Threads::Threads)
+    list(APPEND ALSA_LIBRARIES Threads::Threads)
+    set_property(
+      TARGET ALSA::ALSA
+      APPEND
+      PROPERTY INTERFACE_LINK_LIBRARIES Threads::Threads
+    )
+  endif()
+
+  find_library(Z_VCPKG_HAS_LIBRT NAMES rt)
+  if(Z_VCPKG_HAS_LIBRT)
+    list(APPEND ALSA_LIBRARIES rt)
+    set_property(
+      TARGET ALSA::ALSA
+      APPEND
+      PROPERTY INTERFACE_LINK_LIBRARIES rt
+    )
+  endif()
+endif()

ports/alsa/vcpkg.json

@@ -1,6 +1,7 @@
 {
   "name": "alsa",
   "version": "1.2.8",
+  "port-version": 1,
   "description": "The Advanced Linux Sound Architecture (ALSA) - library",
   "homepage": "https://www.alsa-project.org/",
   "license": "LGPL-2.1-or-later",

versions/a-/alsa.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "18d67806b319dea0e3c2e9c921a1864901af1d22",
+      "version": "1.2.8",
+      "port-version": 1
+    },
     {
       "git-tree": "1e4f79a1681c6c40c4b500bf4c8c5d3746916bab",
       "version": "1.2.8",

versions/baseline.json

@@ -90,7 +90,7 @@
     },
     "alsa": {
       "baseline": "1.2.8",
-      "port-version": 0
+      "port-version": 1
     },
     "amd-amf": {
       "baseline": "1.4.29",