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Tests: Hide errors from `ldd --help` output check 

If `--help` is not a valid option then it may print content to stderr,
so we need to capture that.
This commit is contained in:
Brad King 2016-07-21 15:38:47 -04:00
parent dbc0ec1648
commit d6a6024e9e
1 changed files with 2 additions and 1 deletions
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3
Tests/RunCMake/CMakeLists.txt
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@ -309,7 +309,8 @@ endif()
if("${CMAKE_GENERATOR}" MATCHES "Make|Ninja")
if(UNIX AND NOT CYGWIN)
execute_process(COMMAND ldd --help
OUTPUT_VARIABLE LDD_HELP)
OUTPUT_VARIABLE LDD_HELP
ERROR_VARIABLE LDD_ERR)
if("${LDD_HELP}" MATCHES
"(-r, --function-relocs.*process data and function relocations.*-u, --unused.*print unused direct dependencies)")
add_RunCMake_test(LinkWhatYouUse)