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| author | Brad King <brad.king@kitware.com> | 2022-01-20 16:57:57 (GMT) |
|---|---|---|
| committer | Kitware Robot <kwrobot@kitware.com> | 2022-01-20 16:58:04 (GMT) |
| commit | a5109e676f9fedabdf09bdb1ce92e60f45ba6843 (patch) | |
| tree | 29ae61eac7c12bbb307fae53df316eccc45a3e9d | |
| parent | d79c40b1d5c189b9e2f3948993de7081fe44d647 (diff) | |
| parent | 6a0ce19ce1cb594cdec19bacc9fc7a38156e38da (diff) | |
| download | CMake-a5109e676f9fedabdf09bdb1ce92e60f45ba6843.zip CMake-a5109e676f9fedabdf09bdb1ce92e60f45ba6843.tar.gz CMake-a5109e676f9fedabdf09bdb1ce92e60f45ba6843.tar.bz2 | |
Merge topic 'FortranCInterface-gcc-12-lto' into release-3.22
6a0ce19ce1 FortranCInterface: Fix compatibility with GCC gfortran 12 LTO
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !6879
| -rw-r--r-- | Modules/FortranCInterface/CMakeLists.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Modules/FortranCInterface/CMakeLists.txt b/Modules/FortranCInterface/CMakeLists.txt index 13e4498..ce0bc10 100644 --- a/Modules/FortranCInterface/CMakeLists.txt +++ b/Modules/FortranCInterface/CMakeLists.txt @@ -102,6 +102,19 @@ set_property(TARGET symbols PROPERTY POSITION_INDEPENDENT_CODE 1) add_executable(FortranCInterface main.F call_sub.f ${call_mod}) target_link_libraries(FortranCInterface PUBLIC symbols) +# If IPO is enabled here, GCC gfortran >= 12.0 will obfuscate +# the strings of the return values in the compiled executable, +# which we use to regex match against later. +# The static libraries must be build with IPO and non-IPO objects, +# as that will ensure the verify step will operate on IPO objects, +# if requested by the system compiler flags. +if(CMAKE_Fortran_COMPILER_ID STREQUAL "GNU" AND + CMAKE_Fortran_COMPILER_VERSION VERSION_GREATER_EQUAL 12) + target_compile_options(FortranCInterface PRIVATE "-fno-lto") + target_compile_options(myfort PRIVATE "-flto=auto" "-ffat-lto-objects") + target_compile_options(symbols PRIVATE "-flto=auto" "-ffat-lto-objects") +endif() + file(GENERATE OUTPUT exe-$<CONFIG>.cmake CONTENT [[ set(FortranCInterface_EXE "$<TARGET_FILE:FortranCInterface>") ]]) |