* [fontconfig] update fontconfig

* [libiconv] update to make

* [gettext] update to make

* [vcpkg_configure_make] Changes considering pure configure ports without the requirement to run autoconfig

* [fontconfig] make it work on windows

* Remove install of unofficial cmake config

* add function get_cmake_vars

* fine tuning.

* apply to make based ports.

* add log suffix on not windows platforms

* fix c&p error

* add previous LINK env

* setup env on windows and extract cpp flags correctly.

* update glib and libxml2

* fix windows regressions

* Apply suggestions from code review

* add windres wrapper to invoke RC.

* remove wrong fi

* fix libintl.

* try fixing uwp

* other things to update

* exiv2 fix

* libtool does not like -RTC1

* pass the /RTC<x> flag directly to the compiler

* trust cmake instead of adding extra flags

* fix expat

* fix iconv wrapper install

* change fontconfig intl linkage.

* add appcontainer back in which is required for UWP. Why is this not in the cmake flags?

* fix pkg-config in vcpkg_configure_make

* fix json-c pkg-config installation

* remove remnoved config

* comment out debug messages + bit of tuning

* finally fontconfig

* comment debug messages

* expat apply extra patches.

* Switch back to -E instead of -EP in cpp

* commit changes from fontconfig PR

* [expat] fix expat details

* Apply suggestions from code review

Co-authored-by: nicole mazzuca <mazzucan@outlook.com>

* cleanup docs

* update osx pipeline so that fontconfig actually builds

* fix expat the lazy way by using a higher commit than release

* fix a barage of regressions due to the use of unofficial targets

* [expat] use a higher commit hash with a better stabilized cmake build

* forgot freexl regression

* more unofficial fixes

* fix downstream expat usage

* fix wxwidgets

* fix gcdm regression

* [vtk] fix the regression due to expat

* add uwp cl flags back in. Somehow those are not set by cmake

* add a few other configure options for full gettext build

* fix cmake regression

* fix a few regressions

* fix static gettext build

* fix gettext static

* fix libxml2 wrapper for cmake

* some more regressions fixes

* add conversion from somelib.lib to -lsomelib

* add a few option to libiconv.

* get logs from CI

* add missing ar-lib wrapper

* add missing ar-lib wrapper

* add fatal error to gettext

* remove uuid from the list of LIBS since it seems to not exist in CI?

* small but important regex correction

* fix regex and add debug message for libs

* remove error and only build libintl.

* add uuid dependency to fontconfig in qt5-base

* osx install gettext for autopoint

* fix io2d regression by saying the port is broken .....
(which it is; upstream needs to learn proper cmake)

* restore the old libxml2 wrapper with minor modifications

* fix xmlsec regression

* install wrapper correctly

* try actual fixing io2d

* improve iconv wrapper

* add latest changes from update_fontconfig PR

* Apply suggestions from code review

first set which don't need special attention

Co-authored-by: ras0219 <533828+ras0219@users.noreply.github.com>

* Apply suggestions from code review

one more simple change

Co-authored-by: ras0219 <533828+ras0219@users.noreply.github.com>

* [x264] set env AS

* fix bugs due to refactor

* use subpath everywhere

* apply changes from CR

* fix fontconfig build.

* only change libs in static builds

* remove unnecessary lines 41 & 44

* remove flag transformation

* reintroduce the flag / to - transformation for MSVC

* trying to figure out autopoint issue.
using wrong (windows) find.exe instead of msys

* add correct working_dir to subpath

* escape stupid env paths.

* fix typo

* add findutils
remove debug messages

* add error if libtool chokes

* add file to msys

* pass lt_cv_deplibs_check_method=pass_all on windows
(couldn't get file.exe to work so that libtool correctly ids the passed libs)

* add bzip2 to msys

* reenable libtool check. Lets see if CI agrees

* unbreak linux
try to figure out where uuid should be on windows.

* add -L flag and help libtool ?

* try to get ci to find uuid.

* try to use cygpath

* update controls

* cleanup merge mistakes

* correct merge issues

* determine cmake vars if not done before.

* move adding of -l earlier

* more merge cleanup

* fix uwp builds by not transforming libs

* fix patches in io2d

* fix xz download error

* apply code review changes manually

* fix the typos left behind in CR

Co-authored-by: nicole mazzuca <mazzucan@outlook.com>
Co-authored-by: Billy Robert O'Neal III <bion@microsoft.com>
Co-authored-by: ras0219 <533828+ras0219@users.noreply.github.com>

This is required to build libintl (gettext) with iconv support (see #8484).

Also updated to the latest version 1.16.