[Swift 2.2] Request to merge a build-script fix

Development Compiler
1

Hi Ted,

Under certain circumstances, when the OS X machine has the
`/usr/include` directory that contains stale headers (not from the
current Xcode installation), the build might fail. This patch works
around the issue by ensuring that LLVM CMake scripts don't try to look
in `/usr/include`.

Dmitri

···

--
main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
(j){printf("%d\n",i);}}} /*Dmitri Gribenko <gribozavr@gmail.com>*/

2

Approved for swift-2.2.

Cherry-picked to https://github.com/apple/swift/commit/d16df7a62cbbdcd10dcd9ee9733cf2f6c050348c\.

···

On Feb 2, 2016, at 5:58 PM, Dmitri Gribenko <gribozavr@gmail.com> wrote:

Hi Ted,

Under certain circumstances, when the OS X machine has the
`/usr/include` directory that contains stale headers (not from the
current Xcode installation), the build might fail. This patch works
around the issue by ensuring that LLVM CMake scripts don't try to look
in `/usr/include`.

build-script: force LLVM to use libc++ on Darwin by gribozavr · Pull Request #1175 · apple/swift · GitHub
build-script: force LLVM to use libc++ on Darwin · apple/swift@79fdc78 · GitHub

Dmitri

--
main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
(j){printf("%d\n",i);}}} /*Dmitri Gribenko <gribozavr@gmail.com>*/