The previous commit redefines `stdenv.cross` for the sake of normal
libaries, the most common use-case of that attribute. Some compilers
however relied on the old definition so we have them use
`targetPlatform` instead. This special casing is fine because we
eventually want to remove `stdenv.cross` and use either `hostPlatform`
or `targetPlatform` instead.
Darwin systems need to be able to find CoreFoundation headers as well as
libc headers. Somehow, gcc doesn't accept any "framework" parameters
that would normally be used to include CoreFoundation in this
situation.
HACK: Instead, this adds a derivation that combines the two. The result
works but probably not a good long term solution.
ALTERNATIVES: Maybe sending patches in to GCC to allow
"native-system-framework" configure flag to get this found.
gcc needs to be able find system headers. Without this, gcc fails to build because
/usr/include is not available.
Note: stdenv.libc should be available for all stdenv's, I think.
This should get gcc48, gcc5, and gcc6 working again.
Also: use makeLibraryPath, and makeSearchPathOutput for LIBRARY_PATH and
CPATH. This is a refactor but it also fixes an issue with zlib.
- disable bootstrap builds on Darwin
- remove xcrun calls
- check if patchelf is available before using
- apply darwin patch for gcc4.9
- fixes#16047
- fixes#14812
The following parameters are now available:
* hardeningDisable
To disable specific hardening flags
* hardeningEnable
To enable specific hardening flags
Only the cc-wrapper supports this right now, but these may be reused by
other wrappers, builders or setup hooks.
cc-wrapper supports the following flags:
* fortify
* stackprotector
* pie (disabled by default)
* pic
* strictoverflow
* format
* relro
* bindnow
Also sync a tiny difference in docs outputs from gcc-5.
I originally assumed that people will push gcc-5 support to master
long before closure-size gets there, but I overestimated the situation.
We haven't really settled even the issue of ABI switch,
so let's use the same gcc version on closure-size and master.
Attrnames and package names should be as close as possible to avoid confusion.
I took care not to confuse the two mpc things during the mass-replace,
so hopefully I suceeded (tarball still builds).
John Ericson