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llvm-mirror/cmake
Keno Fischer 3ac3a2c421 [cmake] With utils disabled, don't build tblgen in cross mode
Summary:
In cross mode, we build a separate NATIVE tblgen that runs on the
host and is used during the build. Separately, we have a flag that
disables building all executables in utils/. Of course generally,
this doesn't turn off tblgen, since we need that during the build.
In cross mode, however, that tblegen is useless since we never
actually use it. Furthermore, it can be actively problematic if the
cross toolchain doesn't like building executables for whatever reason.
And even if building executables works fine, we can at least save
compile time by omitting it from the target build. There's two changes
needed to make this happen:
- Stop creating a dependency from the native tool to the target tool.
  No such dependency is required for a correct build, so I'm not entirely
  sure why it was there in the first place.
- If utils were disabled on the CMake command line and we're in cross mode,
  respect that by excluding it from the install target (using EXCLUDE_FROM_ALL).

Reviewers: smeenai
Differential Revision: https://reviews.llvm.org/D64032

llvm-svn: 364872
2019-07-01 23:15:07 +00:00
..
modules [cmake] With utils disabled, don't build tblgen in cross mode 2019-07-01 23:15:07 +00:00
platforms [NFC][CMake] Improve Status message in the iOS toolchain file 2019-03-13 15:35:21 +00:00
config-ix.cmake Build with _XOPEN_SOURCE defined on AIX 2019-06-07 15:45:25 +00:00
config.guess Remove Bitrig: LLVM Changes 2017-07-21 22:48:47 +00:00
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