Rather than just re-adding HOMEBREW_PREFIX/bin if it's missing re-add
everything from HOMEBREW_PATH. This works well with or without
environment filtering being enabled but with environment filtering it
ensures that ENV/std just builds on the original user environment.
Add SharedEnvExtension#gcc_with_cxx11_support? to centralise the
logic for checking whether a compiler is known to support C++11.
Update logic to accept GCC 4.8 and above (including 6). Thereby also
address oversight in #163 where support for GCC 6 was added without
updating the C++11 compiler whitelist.
Add tests for Superenv#cxx11.
Closes#346.
Setting -mcpu and -mtune on Tiger with gcc-4.2 exposes a bug in one of the
system headers, causing certain builds to fail. This can be fixed by
adding -faltivec to CFLAGS.
See: http://trac.macports.org/ticket/34213
`Library/ENV` like `Library/Homebrew` is part of Homebrew basecode. It
should be able to be accessed during the `brew tests`.
By adding HOMEBREW_ENV_PATH variable, we allow test suit to locate these
codes.
Raise an error when attempting to create universal binaries with a GCC
that can't do so.
ClosesHomebrew/homebrew#46630.
Signed-off-by: Baptiste Fontaine <batifon@yahoo.fr>
add guard in Formula#file_modified? to prevent git popup
add guard in Superenv.bin before calling MacOS::Xcode.version
add guard against missing Xcode/CLT in Xcode.uncached_version
return nil instread of 0 in uncached_version when Xcode/CLT are not present, to distinguish from linuxbrew behavior
checks against pour_bottle? and needs_relocation?, add guard around keg.relocate_install_names to check pour_bottle?/needs_relocation? as well
needs_relocation? becomes skip_relocation?, use cellar attr to indicate relocation instead of does_not_need_relocation
MacOS.can_build? becomes MacOS.has_apple_developer_tools?
It's not clear whether it returns MAKEFLAGS with or without -j<n>, and
neither is particularly useful behavior, given you can easily get the
exact value by calling ENV["MAKEFLAGS"]. So let's not commit to this
API.
