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FindMPI include parsing better handles leading newlines

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When FindMPI parses include output like:
```
 warning: setlocale: LC_ALL: cannot change locale (en_US.UTF-8)
 -I....
 ```
This commit is contained in:
Robert Maynard 2024-07-01 11:47:00 -04:00
parent 69d266e395
commit 8ba3441bd2
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1 changed files with 2 additions and 1 deletions
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Modules/FindMPI.cmake
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@ -683,7 +683,7 @@ function (_MPI_interrogate_compiler LANG)
endforeach()
# Extract include paths from compile command line
string(REGEX MATCHALL "(^| )${_MPI_PREPROCESSOR_FLAG_REGEX}${CMAKE_INCLUDE_FLAG_${LANG}} *([^\" ]+|\"[^\"]+\")"
string(REGEX MATCHALL "(^|\n| )${_MPI_PREPROCESSOR_FLAG_REGEX}${CMAKE_INCLUDE_FLAG_${LANG}} *([^\" ]+|\"[^\"]+\")"
MPI_ALL_INCLUDE_PATHS "${MPI_COMPILE_CMDLINE}")
# If extracting failed to work, we'll try using -showme:incdirs.
@ -698,6 +698,7 @@ function (_MPI_interrogate_compiler LANG)
foreach(_MPI_INCLUDE_PATH IN LISTS MPI_ALL_INCLUDE_PATHS)
string(REGEX REPLACE "^ ?${_MPI_PREPROCESSOR_FLAG_REGEX}${CMAKE_INCLUDE_FLAG_${LANG}} *" "" _MPI_INCLUDE_PATH "${_MPI_INCLUDE_PATH}")
string(REPLACE "\n" "" _MPI_INCLUDE_PATH "${_MPI_INCLUDE_PATH}")
string(REPLACE "\"" "" _MPI_INCLUDE_PATH "${_MPI_INCLUDE_PATH}")
string(REPLACE "'" "" _MPI_INCLUDE_PATH "${_MPI_INCLUDE_PATH}")
get_filename_component(_MPI_INCLUDE_PATH "${_MPI_INCLUDE_PATH}" REALPATH)