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CMakeDetermineCompilerABI: Strip -pipe from compile flags

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When `-pipe` is enabled, GCC passes data among its different executables
using pipes instead of temporary files.  This leads to issues when cmake
attempts to infer compiler internals via the `-v` flag as each
executable will print to `stderr` in parallel.  Avoid this by stripping
`-pipe` from the compilation flags during compiler inspection.

This extends commit d5895f50c3 (CMakeDetermineCompilerABI: Avoid failing
on warnings with -Werror, 2020-01-30, v3.17.0-rc1~32^2).
This commit is contained in:
Philip Lorenz 2024-06-03 13:19:24 +02:00 committed by Brad King
parent 99655b17eb
commit ec22cf1a67
1 changed files with 8 additions and 1 deletions
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9
Modules/CMakeDetermineCompilerABI.cmake
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@ -52,14 +52,21 @@ function(CMAKE_DETERMINE_COMPILER_ABI lang src)
__TestCompiler_setTryCompileTargetType()
# Avoid failing ABI detection on warnings.
# Avoid failing ABI detection caused by non-functionally relevant
# compiler arguments
if(CMAKE_TRY_COMPILE_CONFIGURATION)
string(TOUPPER "${CMAKE_TRY_COMPILE_CONFIGURATION}" _tc_config)
else()
set(_tc_config "DEBUG")
endif()
foreach(v CMAKE_${lang}_FLAGS CMAKE_${lang}_FLAGS_${_tc_config})
# Avoid failing ABI detection on warnings.
string(REGEX REPLACE "(^| )-Werror([= ][^-][^ ]*)?( |$)" " " ${v} "${${v}}")
# Avoid passing of "-pipe" when determining the compiler internals. With
# "-pipe" GCC will use pipes to pass data between the involved
# executables. This may lead to issues when their stderr output (which
# contains the relevant compiler internals) becomes interweaved.
string(REGEX REPLACE "(^| )-pipe( |$)" " " ${v} "${${v}}")
endforeach()
# Save the current LC_ALL, LC_MESSAGES, and LANG environment variables