K 10
svn:author
V 6
rakuco
K 8
svn:date
V 27
2018-02-03T15:09:40.532338Z
K 7
svn:log
V 595
Drop USE_GCC and add missing build dependency

Backport an upstream commit that fixes the build with clang, which allows us to
drop USE_GCC. It is broken on at least FreeBSD 10:

    ===>  Configuring for flameshot-0.5.0
    Project ERROR: Cannot run compiler 'g++'. Output:
    ===================
    g++: not found
    ===================
    Maybe you forgot to setup the environment?
    *** Error code 3

Also add a dependency on qt5-buildtools, otherwise the build complains that rcc
is not found.

Approved by:	portmgr (antoine)
Differential Revision:	https://reviews.freebsd.org/D14100

END