Each bootstrapping stage ought to just depend on the previous stage, but
poorly-written compilers break this elegence. This provides an easy-enough
way to depend on the next stage: targetPackages. PLEASE DO NOT USE IT
UNLESS YOU MUST!
I'm hoping someday in a pleasant future I can revert this commit :)
- `pkgs` is self-similar, and thus already spliced
- `buildPackages` is an ingredient of splicing and should be kept as is
- The platforms are not packages or package sets and couldn't be spliced
There's probably other things that shouldn't be spliced too. The best long-
term solution is simply to stop splicing altogether.
This basically does something similar than the AUR build:
https://aur.archlinux.org/packages/vlc-qt5/
On our side, all there is to do is to force compiling using C++11 mode
and use a patch that the AUR package took from the following upstream
patchwork URL:
https://patches.videolan.org/patch/14061/
Instead of passing CXXFLAGS to the configure script, I'm using sed here
to make sure we don't override flags figured out by configure.
For example if ./configure is used with CXXFLAGS=-std=c++11 appended or
prepended, we have something like:
... -I../include -std=c++11 -Wall -Wextra -Wsign-compare ...
While if we don't do that at all, we have something like:
... -I../include -g -O2 -Wall -Wextra -Wsign-compare ...
Another way would be to use NIX_CFLAGS_COMPILE, but that would affect
even compilation of C code and thus resulting in a bunch of warnings
like this:
cc1: warning: command line option '-std=c++11' is valid for C++/ObjC++
but not for C
So with our approach the flags during build look much better:
... -I../include -std=c++11 -g -O2 -Wall -Wextra -Wsign-compare ...
Another thing I've changed is that the vlc_qt5 attribute in
all-packages.nix now uses the latest Qt 5 version, because the build for
Qt >= 5.7.0 is now no longer broken.
I've also ordered the preConfigure attribute before the configureFlags
attribute, because it makes more sense in terms of context (pre ->
configure -> post).
Tested by building on x86_64-linux with libsForQt56.vlc, libsForQt58.vlc
and vlc (the Qt 4 version, just to be sure I didn't accidentally break
it).
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Cc: @ttuegel
The old hard-coded lists are now used to test system parsing.
In the process, make an `assertTrue` in release lib for eval tests; also
use it in release-cross
