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cmake: Detect backtrace() support on platforms such as FreeBSD

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On FreeBSD use of backtrace requires linking libexecinfo. The current
check_symbol_exists() will fail due to that missing library. Fortunately,
CMake ships with a FindBacktrace module (at least since 3.0) that can
be used to correctly handle platforms such as FreeBSD (and OpenBSD
according to the FindBacktrace source).

(cherry picked from commit 3f5bdf0c2d)
Backported-from: dbus!281
This commit is contained in:
Alex Richardson 2022-03-20 23:25:29 +00:00 • committed by Simon McVittie
parent 83325d29ad
commit 42b8ac2ba0
2 changed files with 7 additions and 1 deletions
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4
cmake/ConfigureChecks.cmake
View file

@ -42,7 +42,9 @@ check_include_file(ws2tcpip.h HAVE_WS2TCPIP_H)# dbus-sysdeps-win.c
check_include_file(unistd.h HAVE_UNISTD_H) # dbus-sysdeps-util-win.c
check_include_file(sys/inotify.h DBUS_BUS_ENABLE_INOTIFY)
check_symbol_exists(backtrace "execinfo.h" HAVE_BACKTRACE) # dbus-sysdeps.c, dbus-sysdeps-win.c
find_package(Backtrace) # dbus-sysdeps.c, dbus-sysdeps-win.c
set(HAVE_BACKTRACE ${Backtrace_FOUND})
check_symbol_exists(getgrouplist "grp.h" HAVE_GETGROUPLIST) # dbus-sysdeps.c
check_symbol_exists(getpeerucred "ucred.h" HAVE_GETPEERUCRED) # dbus-sysdeps.c, dbus-sysdeps-win.c
check_symbol_exists(nanosleep "time.h" HAVE_NANOSLEEP) # dbus-sysdeps.c

4
dbus/CMakeLists.txt
View file

@ -292,6 +292,10 @@ else(WIN32)
if(LIBSOCKET)
target_link_libraries(dbus-1 ${LIBSOCKET})
endif()
if (HAVE_BACKTRACE)
target_link_libraries(dbus-1 ${Backtrace_LIBRARY})
target_include_directories(dbus-1 PRIVATE ${Backtrace_INCLUDE_DIR})
endif()
endif()
target_include_directories(dbus-1 INTERFACE $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}/dbus-1.0>;$<INSTALL_INTERFACE:${CMAKE_INSTALL_LIBDIR}/dbus-1.0/include>)