[libxml2] Improve pc file (#17747)

* Use rcVersion.h.in from PORT_DIR directly

* Inject static linking deps into pc file

* x-add-version

* Insert requires pc modules directly

* x-add-version

ports/libxml2/CMakeLists.txt

@@ -138,7 +138,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Windows" OR CMAKE_SYSTEM_NAME STREQUAL "WindowsSt
         _WINSOCK_DEPRECATED_NO_WARNINGS
     )
     target_sources(libxml2 PRIVATE win32/libxml2.rc)
-    configure_file(rcVersion.h.in include/rcVersion.h @ONLY)
+    configure_file("${PORT_DIR}/rcVersion.h.in" include/rcVersion.h @ONLY)
 endif()
 
 target_compile_definitions(libxml2 PRIVATE
@@ -166,6 +166,13 @@ install(TARGETS libxml2
 )
 
 # pkgconfig
+if(NOT Iconv_IS_BUILT_IN)
+    set(ICONV_LIBS "-liconv")
+endif()
+if(UNIX)
+    set(M_LIBS "-lm")
+    set(THREAD_LIBS "-pthread")
+endif()
 set(prefix ${CMAKE_INSTALL_PREFIX})
 set(exec_prefix "\${prefix}")
 set(libdir ${prefix}/${CMAKE_INSTALL_LIBDIR})

ports/libxml2/portfile.cmake

@@ -7,7 +7,6 @@ vcpkg_from_github(
 )
 
 file(COPY ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt DESTINATION ${SOURCE_PATH})
-file(COPY ${CMAKE_CURRENT_LIST_DIR}/rcVersion.h.in DESTINATION ${SOURCE_PATH})
 
 if (VCPKG_TARGET_IS_UWP)
     message(WARNING "Feature network couldn't be enabled on UWP, disable http and ftp automatically.")
@@ -35,6 +34,10 @@ if(VCPKG_TARGET_IS_WINDOWS)
     endif()
     vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/lib/pkgconfig/libxml-2.0.pc" "-lxml2" "-llibxml2")
 endif ()
+if(NOT VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
+    vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/debug/lib/pkgconfig/libxml-2.0.pc" "\nRequires:\n" "\nRequires.private: liblzma zlib\n")
+endif()
+vcpkg_replace_string("${CURRENT_PACKAGES_DIR}/lib/pkgconfig/libxml-2.0.pc" "\nRequires:\n" "\nRequires.private: liblzma zlib\n")
 vcpkg_fixup_pkgconfig()
 
 vcpkg_copy_pdbs()

ports/libxml2/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "libxml2",
   "version-semver": "2.9.10",
-  "port-version": 6,
+  "port-version": 7,
   "description": "Libxml2 is the XML C parser and toolkit developed for the Gnome project (but usable outside of the Gnome platform).",
   "homepage": "https://xmlsoft.org/",
   "dependencies": [

versions/baseline.json

@@ -3666,7 +3666,7 @@
     },
     "libxml2": {
       "baseline": "2.9.10",
-      "port-version": 6
+      "port-version": 7
     },
     "libxmlmm": {
       "baseline": "0.6.0",

versions/l-/libxml2.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "f86ba7081b940af77e935875fbdf9cbf69446b9f",
+      "version-semver": "2.9.10",
+      "port-version": 7
+    },
     {
       "git-tree": "306378bea94b3a4b3c5992510b992b3690b87f52",
       "version-semver": "2.9.10",