diff options
Diffstat (limited to 'indra/cmake/PNG.cmake')
| -rwxr-xr-x | indra/cmake/PNG.cmake | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/indra/cmake/PNG.cmake b/indra/cmake/PNG.cmake index 913c575672..248a875a19 100755 --- a/indra/cmake/PNG.cmake +++ b/indra/cmake/PNG.cmake @@ -4,18 +4,31 @@ include(Prebuilt) set(PNG_FIND_QUIETLY ON) set(PNG_FIND_REQUIRED ON) -if (STANDALONE) +if (USESYSTEMLIBS) include(FindPNG) -else (STANDALONE) +else (USESYSTEMLIBS) use_prebuilt_binary(libpng) if (WINDOWS) - set(PNG_LIBRARIES libpng15) - set(PNG_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include/libpng15) + set(PNG_LIBRARIES libpng16) + set(PNG_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include/libpng16) elseif(DARWIN) - set(PNG_LIBRARIES png15) - set(PNG_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include/libpng15) + set(PNG_LIBRARIES png16) + set(PNG_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include/libpng16) else() - set(PNG_LIBRARIES png15) - set(PNG_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include/libpng15) + # + # When we have updated static libraries in competition with older + # shared libraries and we want the former to win, we need to do some + # extra work. The *_PRELOAD_ARCHIVES settings are invoked early + # and will pull in the entire archive to the binary giving it + # priority in symbol resolution. Beware of cmake moving the + # achive load itself to another place on the link command line. If + # that happens, you can try something like -Wl,-lpng16 here to hide + # the archive. Also be aware that the linker will not tolerate a + # second whole-archive load of the archive. See viewer's + # CMakeLists.txt for more information. + # + set(PNG_PRELOAD_ARCHIVES -Wl,--whole-archive png16 -Wl,--no-whole-archive) + set(PNG_LIBRARIES png16) + set(PNG_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include/libpng16) endif() -endif (STANDALONE) +endif (USESYSTEMLIBS) |