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#! /usr/bin/env bash
# Figure out the latest Windows 10 SDK version. Fail if none is found.
#
function windows10_sdkversion ()
{
# This path will probably always be the same (VC never asks for the SDK
# installation location).
#
local sdk_root="C:\\Program Files (x86)\\Windows Kits\\10"
# Iterate through $sdk_root/Include subdirectories using the "10.0.NNNNN.0"
# pattern and choose the (lexicographically) greatest one. Strip the
# trailing .0 from the selected name and return it as the SDK version.
#
# Note that redirecting winepath's stderr to /dev/null is essential to
# workaround a wineserver bug. If the script's strderr is redirected to
# stdout, it gets inherited by the shell running winepath and the script
# caller that reads from the child stdout can hang waiting for EOF until
# wineserver terminates. For more details on this bug read the related
# comments in msvc-filter.cxx.
#
local sdk_include
sdk_include="$(winepath -u "$sdk_root/Include" 2>/dev/null)"
local mxv=
for d in "$sdk_include/10.0."[0-9][0-9][0-9][0-9][0-9]".0"; do
#
# Consider sub-directories only. Note that we can get a false positive if
# there is no entry that matches the "10.0.NNNNN.0" pattern but the
# "10.0.[0-9][0-9][0-9][0-9][0-9].0" sub-directory is present. We handle
# this corner case later by checking the version length.
#
if [ -d "$d" ]; then
local v
v="$(basename "$d")"
if [[ "$mxv" < "$v" ]]; then
mxv="$v"
fi
fi
done
if [ ${#mxv} -ne 12 ]; then
error "unable to find Windows 10 SDK in $sdk_root"
fi
echo "${mxv:0:10}"
}
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