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Hubert Tong 1602c6fd92 [AIX][cmake] Adjust management of `-G` for linking 
The change in 0ba9843397 changed the behaviour of the build when
using an XL build compiler because `-G` is not a pure linker option:
it also implies `-shared`. This was accounted for in the base CMake
configuration, so an analysis of the change from 0ba9843397 in
relation to a build using Clang (where `-shared` is introduced by CMake)
would not identify the issue. This patch resolves this particular issue
by adding `-shared` alongside `-Wl,-G`.

At the same time, the investigation reveals that several aspects of the
various build configurations are not operating in the manner originally
intended.

The other issue related to the `-G` linker option in the build is that
the removal of it (to avoid unnecessary use of run-time linking) is not
effective for the build using the Clang compiler. This patch addresses
this by adjusting the regular expressions used to remove the broadly-
applied `-G`.

Finally, the issue of specifying the export list with `-Wl,` instead of
a compiler option is flagged with a FIXME comment.

Reviewed By: daltenty, amyk

Differential Revision: https://reviews.llvm.org/D90041
 		2020-10-23 14:32:36 -04:00
..
modules [AIX][cmake] Adjust management of `-G` for linking 2020-10-23 14:32:36 -04:00
platforms Explicitly specify CMAKE_AR in WinMsvc.cmake 2020-09-23 18:05:29 -07:00
README
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config-ix.cmake [CMake] Use append for CMAKE_REQUIRED_* variables 2020-09-21 23:39:56 -07:00
config.guess [cmake] configure the host triple on an Apple Silicon machine correctly 2020-06-23 21:08:11 -07:00
dummy.cpp
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nsis_icon.ico
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nsis_logo.bmp
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README 

See docs/CMake.html for instructions on how to build LLVM with CMake.