diff options
| author | Brad King <brad.king@kitware.com> | 2014-11-10 19:56:10 +0100 |
|---|---|---|
| committer | Daniel Stenberg <daniel@haxx.se> | 2014-11-13 23:42:35 +0100 |
| commit | 5f3824a5aa7298c9a95c66fc13619df17fabd98e (patch) | |
| tree | abc7f44072569c15abddc62b46d9c3b7056bca40 /CMake | |
| parent | 1ae06e002da6535593e988e1148ce001bb2abc2d (diff) | |
CMake: Restore order-dependent library checks
Revert commit 2257deb502 (Cmake: Avoid cycle directory dependencies,
2014-08-22) and add a comment explaining the purpose of the original
code.
The check_library_exists_concat macro is intended to be called multiple
times on a sequence of possibly dependent libraries. Later libraries
may depend on earlier libraries when they are static. They cannot be
safely linked in reverse order on some platforms.
Signed-off-by: Brad King <brad.king@kitware.com>
Diffstat (limited to 'CMake')
| -rw-r--r-- | CMake/Macros.cmake | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/CMake/Macros.cmake b/CMake/Macros.cmake index 9b9338e52..df15b7406 100644 --- a/CMake/Macros.cmake +++ b/CMake/Macros.cmake @@ -1,12 +1,15 @@ #File defines convenience macros for available feature testing # This macro checks if the symbol exists in the library and if it -# does, it appends library to the list. +# does, it prepends library to the list. It is intended to be called +# multiple times with a sequence of possibly dependent libraries in +# order of least-to-most-dependent. Some libraries depend on others +# to link correctly. macro(CHECK_LIBRARY_EXISTS_CONCAT LIBRARY SYMBOL VARIABLE) - check_library_exists("${CURL_LIBS};${LIBRARY}" ${SYMBOL} "${CMAKE_LIBRARY_PATH}" + check_library_exists("${LIBRARY};${CURL_LIBS}" ${SYMBOL} "${CMAKE_LIBRARY_PATH}" ${VARIABLE}) if(${VARIABLE}) - list(APPEND CURL_LIBS ${LIBRARY}) + set(CURL_LIBS ${LIBRARY} ${CURL_LIBS}) endif(${VARIABLE}) endmacro(CHECK_LIBRARY_EXISTS_CONCAT) |