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Fix building on OpenBSD

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FAILED: lib/libopencv_core.so.13.0
...
ld: error: undefined symbol: __cxa_atexit

Do not try to use --no-undefined on OpenBSD. OpenBSD does not link
shared libraries with libc and thus linkage with --no-undefined is
expected to fail.
This commit is contained in:
Brad Smith 2024-01-07 01:26:24 -05:00
parent 9691a2dccf
commit a86e9f161d
1 changed files with 1 additions and 1 deletions
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2
cmake/OpenCVCompilerOptions.cmake
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@ -391,7 +391,7 @@ endif()
# Apply "-Wl,--no-undefined" linker flags: https://github.com/opencv/opencv/pull/21347
if(NOT OPENCV_SKIP_LINK_NO_UNDEFINED)
if(UNIX AND (NOT APPLE OR NOT CMAKE_VERSION VERSION_LESS "3.2"))
if(UNIX AND ((NOT APPLE OR NOT CMAKE_VERSION VERSION_LESS "3.2") AND NOT CMAKE_SYSTEM_NAME MATCHES "OpenBSD"))
set(_option "-Wl,--no-undefined")
set(_saved_CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${_option}") # requires CMake 3.2+ and CMP0056