1 files changed, 52 insertions, 0 deletions
diff --git a/external/pdfium/build.patch.1 b/external/pdfium/build.patch.1
new file mode 100644
index 000000000..9d48b022f
--- /dev/null
+++ b/external/pdfium/build.patch.1
@@ -0,0 +1,52 @@
+diff --git a/core/fpdfdoc/cpdf_metadata.cpp b/core/fpdfdoc/cpdf_metadata.cpp
+index 323de4ffc..f11a0b0ad 100644
+--- a/core/fpdfdoc/cpdf_metadata.cpp
++++ b/core/fpdfdoc/cpdf_metadata.cpp
+@@ -74,7 +74,7 @@ std::vector<UnsupportedFeature> CPDF_Metadata::CheckForSharedForm() const {
+   CFX_XMLParser parser(stream);
+   std::unique_ptr<CFX_XMLDocument> doc = parser.Parse();
+   if (!doc)
+-    return {};
++    return std::vector<UnsupportedFeature>();
+ 
+   std::vector<UnsupportedFeature> unsupported;
+   CheckForSharedFormInternal(doc->GetRoot(), &unsupported);
+diff --git a/third_party/base/span.h b/third_party/base/span.h
+index 0fb627ba8..f71c362e2 100644
+--- a/third_party/base/span.h
++++ b/third_party/base/span.h
+@@ -214,7 +214,7 @@ class span {
+   // Conversions from spans of compatible types: this allows a span<T> to be
+   // seamlessly used as a span<const T>, but not the other way around.
+   template <typename U, typename = internal::EnableIfLegalSpanConversion<U, T>>
+-  constexpr span(const span<U>& other) : span(other.data(), other.size()) {}
++  span(const span<U>& other) : span(other.data(), other.size()) {}
+   span& operator=(const span& other) noexcept = default;
+   ~span() noexcept {
+     if (!size_) {
+diff --git a/third_party/base/span.h b/third_party/base/span.h
+index 0fb627ba8..dda1fc8bc 100644
+--- a/third_party/base/span.h
++++ b/third_party/base/span.h
+@@ -204,7 +204,7 @@ class span {
+   // size()|.
+   template <typename Container,
+             typename = internal::EnableIfSpanCompatibleContainer<Container, T>>
+-  constexpr span(Container& container)
++  span(Container& container)
+       : span(container.data(), container.size()) {}
+   template <
+       typename Container,
+diff --git a/core/fxcodec/jpx/cjpx_decoder.cpp b/core/fxcodec/jpx/cjpx_decoder.cpp
+index dbc1b1045..36b72461d 100644
+--- a/core/fxcodec/jpx/cjpx_decoder.cpp
++++ b/core/fxcodec/jpx/cjpx_decoder.cpp
+@@ -70,7 +70,7 @@ Optional<OpjImageRgbData> alloc_rgb(size_t size) {
+   if (!data.b)
+     return {};
+ 
+-  return data;
++  return std::move(data);
+ }
+ 
+ void sycc_to_rgb(int offset,