This seems no longer true: "Windows MSVC only supports C90 so force gnu89"
With that said, also do a revert:
"external/libeot internally uses --std=c99, do not overrule that"
This reverts commit 61a66b612e.
Change-Id: Id628131b4fa6b61e19da6d862d773ab36f201729
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/160454
Tested-by: Jenkins
Reviewed-by: Thorsten Behrens <thorsten.behrens@allotropia.de>
Library for parsing Embedded OpenType files (Microsoft embedded font "standard"), and converting them to other formats.