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[CMake] Print the autodetected host linker version 

There's no easy way to find out what the autodetected version is, but
sometimes it may be useful to confirm that the right version is being
used. Print it as CMake status message.

Differential Revision: https://reviews.llvm.org/D85362
This commit is contained in:
Petr Hosek 2020-08-05 14:03:12 -07:00
parent 1c1ffa6a30
commit 633e3dacf2
1 changed files with 7 additions and 7 deletions
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14
clang/CMakeLists.txt
View File

@ -424,15 +424,15 @@ if (APPLE)
RESULT_VARIABLE HAD_ERROR
OUTPUT_VARIABLE LD_V_OUTPUT
)
if (NOT HAD_ERROR)
if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
endif()
else()
if (HAD_ERROR)
message(FATAL_ERROR "${CMAKE_LINKER} failed with status ${HAD_ERROR}")
endif()
if ("${LD_V_OUTPUT}" MATCHES ".*ld64-([0-9.]+).*")
string(REGEX REPLACE ".*ld64-([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
elseif ("${LD_V_OUTPUT}" MATCHES "[^0-9]*([0-9.]+).*")
string(REGEX REPLACE "[^0-9]*([0-9.]+).*" "\\1" HOST_LINK_VERSION ${LD_V_OUTPUT})
endif()
message(STATUS "Host linker version: ${HOST_LINK_VERSION}")
endif()
include(CMakeParseArguments)