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| author | Alexander Grund <alexander.grund@tu-dresden.de> | 2019-12-09 09:42:40 +0100 |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2019-12-09 11:37:40 -0500 |
| commit | 958f858ad815024550b22eeaac02f183f8d646fd (patch) | |
| tree | bc7f997717889ad688b637db6c6cb609c11a8fff /CompileFlags.cmake | |
| parent | 8c7b7df788851358392e4a00faf00bc2a674c3a6 (diff) | |
| download | cmake-958f858ad815024550b22eeaac02f183f8d646fd.tar.gz | |
Check for support before adding bigtoc linker flag
Fixes: #20076
Diffstat (limited to 'CompileFlags.cmake')
| -rw-r--r-- | CompileFlags.cmake | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/CompileFlags.cmake b/CompileFlags.cmake index 91f2adffe1..053259f47c 100644 --- a/CompileFlags.cmake +++ b/CompileFlags.cmake @@ -54,12 +54,20 @@ if(CMAKE_SYSTEM_PROCESSOR MATCHES "^parisc") endif() # Workaround for TOC Overflow on ppc64 +set(bigTocFlag "") if(CMAKE_SYSTEM_NAME STREQUAL "AIX" AND CMAKE_SYSTEM_PROCESSOR MATCHES "powerpc") - set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-bbigtoc") + set(bigTocFlag "-Wl,-bbigtoc") elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux" AND CMAKE_SYSTEM_PROCESSOR MATCHES "ppc64") - set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--no-multi-toc") + set(bigTocFlag "-Wl,--no-multi-toc") +endif() +if(bigTocFlag) + include(CheckCXXLinkerFlag) + check_cxx_linker_flag(${bigTocFlag} BIG_TOC_FLAG_SUPPORTED) + if(BIG_TOC_FLAG_SUPPORTED) + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${bigTocFlag}") + endif() endif() if (CMAKE_CXX_COMPILER_ID STREQUAL SunPro AND |