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cmake: freebsd: Don't REQUIRE libunwind.pc on FreeBSD 

FreeBSD includes the libunwind APIs in in the base system libgcc_s and
does not install a .pc file for it.
This change fixes the build on FreeBSD for me.
This commit is contained in:
Alex Richardson 2022-05-29 10:38:56 +00:00 committed by Sam Lantinga
parent ae7446a959
commit cd8f57ee4e
1 changed files with 4 additions and 2 deletions
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6
CMakeLists.txt
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@ -1416,8 +1416,10 @@ elseif(UNIX AND NOT APPLE AND NOT ANDROID AND NOT RISCOS AND NOT HAIKU)
endif()
if(HAVE_LIBUNWIND_H)
# We've already found the header, so REQUIRE the lib to be present
pkg_search_module(UNWIND REQUIRED libunwind)
# We've already found the header, so link the lib if present.
# NB: This .pc file is not present on FreeBSD where the implicitly
# linked base system libgcc_s includes all libunwind ABI.
pkg_search_module(UNWIND libunwind)
pkg_search_module(UNWIND_GENERIC libunwind-generic)
list(APPEND EXTRA_TEST_LIBS ${UNWIND_LIBRARIES} ${UNWIND_GENERIC_LIBRARIES})
endif()