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-rwxr-xr-xindra/cmake/PNG.cmake25
1 files changed, 19 insertions, 6 deletions
diff --git a/indra/cmake/PNG.cmake b/indra/cmake/PNG.cmake
index 173d59391e..248a875a19 100755
--- a/indra/cmake/PNG.cmake
+++ b/indra/cmake/PNG.cmake
@@ -9,13 +9,26 @@ if (USESYSTEMLIBS)
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 (USESYSTEMLIBS)