diff options
| author | Michael Dickens <michael.dickens@ettus.com> | 2014-08-20 12:23:24 -0400 |
|---|---|---|
| committer | Michael Dickens <michael.dickens@ettus.com> | 2014-08-20 12:23:24 -0400 |
| commit | 8f02178318d90fceb476a46192fa98fda5bcb0ee (patch) | |
| tree | 9e1842fd5244064c6fddd8658e5d7b7c2065803c /cmake/Modules | |
| parent | b7ea151b32c28e6452c309ef19746e079285ea56 (diff) | |
cmake: add compiler flag only if the compiler supports it
Diffstat (limited to 'cmake/Modules')
| -rw-r--r-- | cmake/Modules/UseSWIG.cmake | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/cmake/Modules/UseSWIG.cmake b/cmake/Modules/UseSWIG.cmake index 008bfa0ed5..837659f704 100644 --- a/cmake/Modules/UseSWIG.cmake +++ b/cmake/Modules/UseSWIG.cmake @@ -146,9 +146,13 @@ macro(SWIG_ADD_SOURCE_TO_MODULE name outfiles infile) endif() # Shut up some warnings from poor SWIG code generation that we - # can do nothing about. - set_source_files_properties( ${swig_generated_file_fullname} - PROPERTIES COMPILE_FLAGS "-Wno-unused-but-set-variable") + # can do nothing about, when this flag is available + include(CheckCXXCompilerFlag) + check_cxx_compiler_flag("-Wno-unused-but-set-variable" HAVE_WNO_UNUSED_BUT_SET_VARIABLE) + if(HAVE_WNO_UNUSED_BUT_SET_VARIABLE) + set_source_files_properties(${swig_generated_file_fullname} + PROPERTIES COMPILE_FLAGS "-Wno-unused-but-set-variable") + endif(HAVE_WNO_UNUSED_BUT_SET_VARIABLE) #message("Full path to source file: ${swig_source_file_fullname}") #message("Full path to the output file: ${swig_generated_file_fullname}") |