--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancFramework/Resources/CMake/LibPngConfiguration.cmake	Wed Jun 10 20:30:34 2020 +0200
@@ -0,0 +1,58 @@
+if (STATIC_BUILD OR NOT USE_SYSTEM_LIBPNG)
+  SET(LIBPNG_SOURCES_DIR ${CMAKE_BINARY_DIR}/libpng-1.6.36)
+  SET(LIBPNG_URL "http://orthanc.osimis.io/ThirdPartyDownloads/libpng-1.6.36.tar.gz")
+  SET(LIBPNG_MD5 "65afdeaa05f5ec14e31d9276143012e9")
+
+  DownloadPackage(${LIBPNG_MD5} ${LIBPNG_URL} "${LIBPNG_SOURCES_DIR}")
+
+  include_directories(
+    ${LIBPNG_SOURCES_DIR}
+    )
+
+  configure_file(
+    ${LIBPNG_SOURCES_DIR}/scripts/pnglibconf.h.prebuilt
+    ${LIBPNG_SOURCES_DIR}/pnglibconf.h
+    )
+
+  set(LIBPNG_SOURCES
+    #${LIBPNG_SOURCES_DIR}/example.c
+    ${LIBPNG_SOURCES_DIR}/png.c
+    ${LIBPNG_SOURCES_DIR}/pngerror.c
+    ${LIBPNG_SOURCES_DIR}/pngget.c
+    ${LIBPNG_SOURCES_DIR}/pngmem.c
+    ${LIBPNG_SOURCES_DIR}/pngpread.c
+    ${LIBPNG_SOURCES_DIR}/pngread.c
+    ${LIBPNG_SOURCES_DIR}/pngrio.c
+    ${LIBPNG_SOURCES_DIR}/pngrtran.c
+    ${LIBPNG_SOURCES_DIR}/pngrutil.c
+    ${LIBPNG_SOURCES_DIR}/pngset.c
+    #${LIBPNG_SOURCES_DIR}/pngtest.c
+    ${LIBPNG_SOURCES_DIR}/pngtrans.c
+    ${LIBPNG_SOURCES_DIR}/pngwio.c
+    ${LIBPNG_SOURCES_DIR}/pngwrite.c
+    ${LIBPNG_SOURCES_DIR}/pngwtran.c
+    ${LIBPNG_SOURCES_DIR}/pngwutil.c
+    )
+
+  add_definitions(
+    -DPNG_NO_CONFIG_H=1
+    -DPNG_NO_CONSOLE_IO=1
+    -DPNG_NO_STDIO=1
+    # The following declaration avoids "__declspec(dllexport)" in
+    # libpng to prevent publicly exposing its symbols by the DLLs
+    -DPNG_IMPEXP=
+    )
+
+  source_group(ThirdParty\\libpng REGULAR_EXPRESSION ${LIBPNG_SOURCES_DIR}/.*)
+
+else()
+  include(FindPNG)
+
+  if (NOT ${PNG_FOUND})
+    message(FATAL_ERROR "Unable to find libpng")
+  endif()
+
+  include_directories(${PNG_INCLUDE_DIRS})
+  link_libraries(${PNG_LIBRARIES})
+  add_definitions(${PNG_DEFINITIONS})
+endif()