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Improvements to finding LLVM's FileCheck

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This patch adds a few improvements to how the build system finds
LLVM's FileCheck program.

* On Fedora, the system LLVM installs FileCheck in the "llvm"
  subdirectory of the LLVM libdir.  This patch teaches the build
  system to look there.

* This adds a configure option to specify which llvm-config executable
  to use.  This is handy on systems that can parallel install multiple
  versions of LLVM; for example I can now:

    ./configure --llvm-config=/bin/llvm-config-5.0-64

  ... to build against LLVM 5, rather than whatever the default
  llvm-config might be.

* Finally, this adds a configure- and config.toml- option to set the
  path to FileCheck.  This is handy when building against an LLVM
  where FileCheck was not installed.  This happens on compatibility
  installs of LLVM on Fedora.
This commit is contained in:
Tom Tromey 2018-09-25 09:13:02 -06:00
parent ae366637fe
commit f4b4939f3e
4 changed files with 38 additions and 2 deletions
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6
src/bootstrap/configure.py
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@ -95,6 +95,8 @@ v("docdir", "install.docdir", "install documentation in PATH")
v("bindir", "install.bindir", "install binaries")
v("llvm-root", None, "set LLVM root")
v("llvm-config", None, "set path to llvm-config")
v("llvm-filecheck", None, "set path to LLVM's FileCheck utility")
v("python", "build.python", "set path to python")
v("jemalloc-root", None, "set directory where libjemalloc_pic.a is located")
v("android-cross-path", "target.arm-linux-androideabi.android-ndk",
@ -323,6 +325,10 @@ for key in known_args:
set('build.cargo', value + '/bin/cargo')
elif option.name == 'llvm-root':
set('target.{}.llvm-config'.format(build()), value + '/bin/llvm-config')
elif option.name == 'llvm-config':
set('target.{}.llvm-config'.format(build()), value)
elif option.name == 'llvm-filecheck':
set('target.{}.llvm-filecheck'.format(build()), value)
elif option.name == 'jemalloc-root':
set('target.{}.jemalloc'.format(build()), value + '/libjemalloc_pic.a')
elif option.name == 'tools':