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Don't use add_link_options() on old CMake versions

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Fixes: #2315
This commit is contained in:
Ben Clayton 2020-07-03 15:41:03 +01:00
parent 73e001a752
commit 4af48da4e3
1 changed files with 12 additions and 4 deletions
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16
CMakeLists.txt
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@ -165,8 +165,12 @@ if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
add_compile_options(-Werror=deprecated-copy)
endif()
# Error if there's symbols that are not found at link time.
add_link_options("-Wl,--no-undefined")
if(NOT CMAKE_VERSION VERSION_LESS "3.13")
# Error if there's symbols that are not found at link time.
# add_link_options() was added in CMake 3.13 - if using an earlier
# version don't set this - it should be caught by presubmits anyway.
add_link_options("-Wl,--no-undefined")
endif()
elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang" AND NOT MSVC)
add_compile_options(-Wall -Wuninitialized -Wunused -Wunused-local-typedefs
-Wunused-parameter -Wunused-value -Wunused-variable)
@ -181,8 +185,12 @@ elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang" AND NOT MSVC)
add_compile_options(-fno-exceptions)
endif()
# Error if there's symbols that are not found at link time.
add_link_options("-Wl,-undefined,error")
if(NOT CMAKE_VERSION VERSION_LESS "3.13")
# Error if there's symbols that are not found at link time.
# add_link_options() was added in CMake 3.13 - if using an earlier
# version don't set this - it should be caught by presubmits anyway.
add_link_options("-Wl,-undefined,error")
endif()
elseif(MSVC)
if(NOT ENABLE_RTTI)
string(FIND "${CMAKE_CXX_FLAGS}" "/GR" MSVC_HAS_GR)