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diff -uNr a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt	2020-03-06 18:47:37.000000000 +0100
+++ b/CMakeLists.txt	2020-04-14 09:25:00.270728334 +0200
@@ -66,6 +66,7 @@
 option(USE_SHARED_PIXMAN  "Use your installed copy of pixman" off)
 option(USE_SHARED_FREETYPE "Use shared FreeType library" off)
 option(USE_SHARED_HARFBUZZ "Use shared HarfBuzz library" off)
+option(USE_SHARED_WEBP    "Use your installed copy of webp" off)
 option(ENABLE_ASEPRITE_EXE "Compile main Aseprite executable" on)
 option(ENABLE_MEMLEAK      "Enable memory-leaks detector (only for developers)" off)
 option(ENABLE_NEWS         "Enable the news in Home tab" on)
@@ -229,9 +230,14 @@
 
 # libwebp
 if(WITH_WEBP_SUPPORT)
-  set(WEBP_LIBRARIES webp webpdemux libwebpmux)
-  set(WEBP_INCLUDE_DIR ${LIBWEBP_DIR}/src)
-  include_directories(${WEBP_INCLUDE_DIR})
+  if(USE_SHARED_WEBP)
+    find_library(WEBP_LIBRARIES NAMES webp)
+    find_path(WEBP_INCLUDE_DIRS NAMES decode.h PATH_SUFFIXES webp)
+  else()
+    set(WEBP_LIBRARIES webp webpdemux libwebpmux)
+    set(WEBP_INCLUDE_DIR ${LIBWEBP_DIR}/src)
+    include_directories(${WEBP_INCLUDE_DIR})
+  endif()
 endif()
 
 # tinyxml
diff -uNr a/third_party/CMakeLists.txt b/third_party/CMakeLists.txt
--- a/third_party/CMakeLists.txt	2019-10-24 01:54:06.000000000 +0200
+++ b/third_party/CMakeLists.txt	2020-04-14 09:22:20.799744576 +0200
@@ -32,7 +32,7 @@
   add_subdirectory(giflib)
 endif()
 
-if(WITH_WEBP_SUPPORT)
+if(WITH_WEBP_SUPPORT AND NOT USE_SHARED_WEBP)
   set(WEBP_BUILD_EXTRAS OFF CACHE BOOL "Build extras.")
   add_subdirectory(libwebp)
 endif()