Initial release

deps/PNG/PNG.cmake

@@ -0,0 +1,48 @@
+if (APPLE)
+    # Only disable NEON extension for Apple ARM builds, leave it enabled for Raspberry PI.
+    set(_disable_neon_extension "-DPNG_ARM_NEON=off")
+else ()
+    set(_disable_neon_extension "")
+endif ()
+
+if(APPLE AND IS_CROSS_COMPILE)
+# TODO: check if it doesn't create problem when compiling from arm to x86_64
+    orcaslicer_add_cmake_project(PNG 
+        GIT_REPOSITORY https://github.com/glennrp/libpng.git 
+        GIT_TAG v1.6.35
+        DEPENDS ${ZLIB_PKG}
+        PATCH_COMMAND       ${GIT_EXECUTABLE} checkout -f -- . && git clean -df &&
+                            ${GIT_EXECUTABLE} apply --whitespace=fix ${CMAKE_CURRENT_LIST_DIR}/macos-arm64.patch ${CMAKE_CURRENT_LIST_DIR}/0002-clang19-macos.patch
+        CMAKE_ARGS
+            -DPNG_SHARED=OFF
+            -DPNG_STATIC=ON
+            -DPNG_PREFIX=prusaslicer_
+            -DPNG_TESTS=OFF
+            -DDISABLE_DEPENDENCY_TRACKING=OFF
+            ${_disable_neon_extension}
+    )
+else ()
+set(_patch_step "")
+    if (APPLE)
+        set(_patch_step PATCH_COMMAND ${PATCH_CMD} ${CMAKE_CURRENT_LIST_DIR}/PNG.patch ${CMAKE_CURRENT_LIST_DIR}/0002-clang19-macos.patch)
+    endif ()
+    orcaslicer_add_cmake_project(PNG 
+        # GIT_REPOSITORY https://github.com/glennrp/libpng.git 
+        # GIT_TAG v1.6.35
+        URL https://github.com/glennrp/libpng/archive/refs/tags/v1.6.35.zip
+        URL_HASH SHA256=3d22d46c566b1761a0e15ea397589b3a5f36ac09b7c785382e6470156c04247f
+        DEPENDS ${ZLIB_PKG}
+        "${_patch_step}"
+        CMAKE_ARGS
+            -DPNG_SHARED=OFF
+            -DPNG_STATIC=ON
+            -DPNG_PREFIX=prusaslicer_
+            -DPNG_TESTS=OFF
+            -DDISABLE_DEPENDENCY_TRACKING=OFF
+            ${_disable_neon_extension}
+)
+endif()
+
+if (MSVC)
+    add_debug_dep(dep_PNG)
+endif ()