diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 40 |
1 files changed, 14 insertions, 26 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 137d52a670..c9a6400a42 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -595,34 +595,22 @@ else() set (C_UNUSED "" ) endif() +set(WIRESHARK_LD_FLAGS + -Wl,--as-needed + # -flto + # -fwhopr + # -fwhole-program +) +# CMAKE_POSITION_INDEPENDENT_CODE is only supported starting with CMake +# 2.8.9. Do not add -pie automatically for older versions. # -# XXX - at least with the Visual Studio 12 generator, this would test -# whether the flag works with the compiler, but, at least when building -# for Win64, the flag "works", in that the link succeeds, but with a -# warning of an unused linker argument. -# -# So we leave it out for now; maybe there's a way to force the linker to -# fail with unknown arguments, or maybe we have to look for error -# messages in the linker output, the way CHECK_C_COMPILER_FLAG does. +# XXX - are there other compilers that don't support -pie? It's +# not as if the only platforms we support are Windows and Linux.... # -if(NOT CMAKE_C_COMPILER_ID MATCHES "MSVC") - set(WIRESHARK_LD_FLAGS - -Wl,--as-needed - # -flto - # -fwhopr - # -fwhole-program - ) - # CMAKE_POSITION_INDEPENDENT_CODE is only supported starting with CMake - # 2.8.9. Do not add -pie automatically for older versions. - # - # XXX - are there other compilers that don't support -pie? It's - # not as if the only platforms we support are Windows and Linux.... - # - if(NOT CMAKE_VERSION VERSION_LESS "2.8.9") - set(WIRESHARK_LD_FLAGS ${WIRESHARK_LD_FLAGS} - -pie - ) - endif() +if(NOT CMAKE_VERSION VERSION_LESS "2.8.9") + set(WIRESHARK_LD_FLAGS ${WIRESHARK_LD_FLAGS} + -pie + ) endif() include(CheckCLinkerFlag) |