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FindHDF5: check that compiler wrapper can compile a minimal program

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There are common setups where the compiler wrapper is broken and will
give non-useful flags to CMake.
This commit is contained in:
Michael Hirsch, Ph.D
2020-02-10 16:16:46 -05:00
committed by Brad King
parent 6e14fe4d1f
commit d9e39f3f89
1 changed files with 35 additions and 24 deletions
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59
Modules/FindHDF5.cmake
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@@ -343,35 +343,46 @@ macro( _HDF5_invoke_compiler language output return_value version is_parallel)
elseif("${language}" STREQUAL "Fortran") elseif("${language}" STREQUAL "Fortran")
set(test_file ${scratch_dir}/cmake_hdf5_test.f90) set(test_file ${scratch_dir}/cmake_hdf5_test.f90)
endif() endif()
# Verify that the compiler wrapper can actually compile: sometimes the compiler
# wrapper exists, but not the compiler. E.g. Miniconda / Anaconda Python
execute_process( execute_process(
COMMAND ${HDF5_${language}_COMPILER_EXECUTABLE} -show ${lib_type_args} ${test_file} COMMAND ${HDF5_${language}_COMPILER_EXECUTABLE} ${test_file}
OUTPUT_VARIABLE ${output}
ERROR_VARIABLE ${output}
RESULT_VARIABLE ${return_value} RESULT_VARIABLE ${return_value}
) )
if(NOT ${${return_value}} EQUAL 0) if(NOT ${${return_value}} EQUAL 0)
message(STATUS message(STATUS
"Unable to determine HDF5 ${language} flags from HDF5 wrapper.") "HDF5 ${language} compiler wrapper is unable to compile a minimal HDF5 program.")
endif()
execute_process(
COMMAND ${HDF5_${language}_COMPILER_EXECUTABLE} -showconfig
OUTPUT_VARIABLE config_output
ERROR_VARIABLE config_output
RESULT_VARIABLE config_return
)
if(NOT ${return_value} EQUAL 0)
message( STATUS
"Unable to determine HDF5 ${language} version from HDF5 wrapper.")
endif()
string(REGEX MATCH "HDF5 Version: ([a-zA-Z0-9\\.\\-]*)" version_match "${config_output}")
if(version_match)
string(REPLACE "HDF5 Version: " "" ${version} "${version_match}")
string(REPLACE "-patch" "." ${version} "${${version}}")
endif()
if(config_output MATCHES "Parallel HDF5: yes")
set(${is_parallel} TRUE)
else() else()
set(${is_parallel} FALSE) execute_process(
COMMAND ${HDF5_${language}_COMPILER_EXECUTABLE} -show ${lib_type_args} ${test_file}
OUTPUT_VARIABLE ${output}
ERROR_VARIABLE ${output}
RESULT_VARIABLE ${return_value}
)
if(NOT ${${return_value}} EQUAL 0)
message(STATUS
"Unable to determine HDF5 ${language} flags from HDF5 wrapper.")
endif()
execute_process(
COMMAND ${HDF5_${language}_COMPILER_EXECUTABLE} -showconfig
OUTPUT_VARIABLE config_output
ERROR_VARIABLE config_output
RESULT_VARIABLE config_return
)
if(NOT ${return_value} EQUAL 0)
message( STATUS
"Unable to determine HDF5 ${language} version from HDF5 wrapper.")
endif()
string(REGEX MATCH "HDF5 Version: ([a-zA-Z0-9\\.\\-]*)" version_match "${config_output}")
if(version_match)
string(REPLACE "HDF5 Version: " "" ${version} "${version_match}")
string(REPLACE "-patch" "." ${version} "${${version}}")
endif()
if(config_output MATCHES "Parallel HDF5: yes")
set(${is_parallel} TRUE)
else()
set(${is_parallel} FALSE)
endif()
endif() endif()
endmacro() endmacro()