Allow overriding of gperf detection by user
Allow overriding of gperf detection by user

LibreOffice/libfreehand,LibreOffice/libfreehand,freedesktop-unofficial-mirror/libreoffice__libfreehand,freedesktop-unofficial-mirror/libreoffice__libfreehand,LibreOffice/libfreehand,LibreOffice/libfreehand,freedesktop-unofficial-mirror/libreoffice__libfreehand