Avoid bogus warning when running Expat configure

Skip docbook checks in Expat configure to speed it up a bit and, mainly,
to avoid the harmless but confusing

$wx/src/expat/expat/configure: line 16683: program: command not found

which was given when running it.
This commit is contained in:
Vadim Zeitlin
2018-02-03 15:29:26 +01:00
parent d3d8778542
commit 879b81aacf