tree 8f3603e4e454ded7104ca1665f4359c4d48b91f3
parent add9066eb06626f5bee032d1ed982fe93f5b2bd7
author Tobias Droste <tdroste@gmx.de> 1481162616 +0100
committer Emil Velikov <emil.l.velikov@gmail.com> 1484745781 +0000

configure.ac: Only set LLVM_LIBS if LLVM is used

This renames llvm_check_version_for to llvm_require_version and let it
set a variable to mark that LLVM will be used.

Use this to make a usefull configure output and to only check if the
libs are found in LLVM if it is actually used.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99010

Signed-off-by: Tobias Droste <tdroste@gmx.de>