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-rwxr-xr-x[-rw-r--r--]indra/cmake/PNG.cmake31
1 files changed, 26 insertions, 5 deletions
diff --git a/indra/cmake/PNG.cmake b/indra/cmake/PNG.cmake
index 4d0b7b2d8d..248a875a19 100644..100755
--- a/indra/cmake/PNG.cmake
+++ b/indra/cmake/PNG.cmake
@@ -4,10 +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)
- set(PNG_LIBRARIES png12)
- set(PNG_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include)
-endif (STANDALONE)
+ if (WINDOWS)
+ set(PNG_LIBRARIES libpng16)
+ set(PNG_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include/libpng16)
+ elseif(DARWIN)
+ set(PNG_LIBRARIES png16)
+ set(PNG_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include/libpng16)
+ else()
+ #
+ # 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)