[libidn2] Support UNIX (microsoft#13708)

* [libidn2] Support UNIX

* update baseline

* Add supports

ports/getdns/CONTROL

@@ -3,7 +3,7 @@ Version: 1.6.0
 Build-Depends: libidn2, openssl
 Description: GetDNS is a modern asynchronous DNS API
 Homepage: https://getdnsapi.net/
-Supports: !uwp
+Supports: !uwp&windows
 
 Feature: libevent
 Description: libevent event loop integration

ports/gmime/CONTROL

@@ -3,3 +3,4 @@ Version: 3.2.6
 Build-Depends: zlib, glib, libiconv, libidn2
 Homepage: https://developer.gnome.org/gmime/
 Description: GMime is a C/C++ library which may be used for the creation and parsing of messages using the Multipurpose Internet Mail Extension (MIME).
+Supports: windows

ports/libidn2/CONTROL

@@ -1,5 +1,6 @@
 Source: libidn2
-Version: 2.2.0-1
+Version: 2.2.0
+Port-Version: 2
 Build-Depends: libiconv
 Homepage: https://www.gnu.org/software/libidn/
 Description: GNU Libidn is an implementation of the Stringprep, Punycode and IDNA 2003 specifications. Libidn's purpose is to encode and decode internationalized domain names.

ports/libidn2/portfile.cmake

@@ -13,39 +13,55 @@ vcpkg_extract_source_archive_ex(
     REF ${IDN2_VERSION}
 )
 
-file(COPY ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt DESTINATION ${SOURCE_PATH})
-file(COPY ${CMAKE_CURRENT_LIST_DIR}/string.h DESTINATION ${SOURCE_PATH}/gl)
+if (VCPKG_TARGET_IS_WINDOWS)
+    file(COPY ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt DESTINATION ${SOURCE_PATH})
+    file(COPY ${CMAKE_CURRENT_LIST_DIR}/string.h DESTINATION ${SOURCE_PATH}/gl)
+
+    configure_file(${CMAKE_CURRENT_LIST_DIR}/config.h ${SOURCE_PATH})
+
+    function(simple_copy_template_header FILE_PATH BASE_NAME)
+        if(NOT EXISTS ${FILE_PATH}/${BASE_NAME}.h)
+        if(EXISTS ${FILE_PATH}/${BASE_NAME}.in.h)
+            configure_file(${FILE_PATH}/${BASE_NAME}.in.h ${FILE_PATH}/${BASE_NAME}.h)
+        endif()
+        endif()
+    endfunction()
+
+    # There seems to be no difference between source and destination files after 'configure'
+    # apart from auto-generated notification at the top. So why not just do a simple copy.
+    simple_copy_template_header(${SOURCE_PATH}/unistring uniconv)
+    simple_copy_template_header(${SOURCE_PATH}/unistring unictype)
+    simple_copy_template_header(${SOURCE_PATH}/unistring uninorm)
+    simple_copy_template_header(${SOURCE_PATH}/unistring unistr)
+    simple_copy_template_header(${SOURCE_PATH}/unistring unitypes)
+    simple_copy_template_header(${SOURCE_PATH}/unistring alloca)
+
+    vcpkg_configure_cmake(
+        SOURCE_PATH ${SOURCE_PATH}
+        PREFER_NINJA
+    )
+
+    vcpkg_install_cmake()
+
+    vcpkg_copy_pdbs()
+
+    file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
 
-configure_file(${CMAKE_CURRENT_LIST_DIR}/config.h ${SOURCE_PATH})
-
-function(simple_copy_template_header FILE_PATH BASE_NAME)
-    if(NOT EXISTS ${FILE_PATH}/${BASE_NAME}.h)
-       if(EXISTS ${FILE_PATH}/${BASE_NAME}.in.h)
-           configure_file(${FILE_PATH}/${BASE_NAME}.in.h ${FILE_PATH}/${BASE_NAME}.h)
-       endif()
-    endif()
-endfunction()
-
-# There seems to be no difference between source and destination files after 'configure'
-# apart from auto-generated notification at the top. So why not just do a simple copy.
-simple_copy_template_header(${SOURCE_PATH}/unistring uniconv)
-simple_copy_template_header(${SOURCE_PATH}/unistring unictype)
-simple_copy_template_header(${SOURCE_PATH}/unistring uninorm)
-simple_copy_template_header(${SOURCE_PATH}/unistring unistr)
-simple_copy_template_header(${SOURCE_PATH}/unistring unitypes)
-simple_copy_template_header(${SOURCE_PATH}/unistring alloca)
-
-vcpkg_configure_cmake(
-    SOURCE_PATH ${SOURCE_PATH}
-    PREFER_NINJA
-)
-
-vcpkg_install_cmake()
-
-file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/include)
+else()
+    vcpkg_configure_make(
+        SOURCE_PATH ${SOURCE_PATH}
+        COPY_SOURCE
+        OPTIONS
+            --with-libiconv-prefix=${CURRENT_INSTALLED_DIR}
+    )
+
+    vcpkg_install_make()
+
+    vcpkg_fixup_pkgconfig()
+
+    file(REMOVE_RECURSE ${CURRENT_PACKAGES_DIR}/debug/share)
+endif()
 
 # License and man
 file(INSTALL ${SOURCE_PATH}/COPYING DESTINATION ${CURRENT_PACKAGES_DIR}/share/libidn2 RENAME copyright)
 file(INSTALL ${SOURCE_PATH}/doc/libidn2.pdf DESTINATION ${CURRENT_PACKAGES_DIR}/share/libidn2)
-
-vcpkg_copy_pdbs()

scripts/ci.baseline.txt

@@ -708,8 +708,6 @@ libhdfs3:x64-linux=fail
 libhydrogen:arm64-windows=fail
 libics:arm-uwp=fail
 libics:x64-uwp=fail
-libidn2:x64-linux=fail
-libidn2:x64-osx=fail
 libigl:arm64-windows=fail
 libigl:arm-uwp=fail
 libigl:x64-uwp=fail