The binaries are stored using git-lfs. To replace the SHA1 links with real files, do

git lfs fetch
git lfs checkout

The binary is hosted via git-lfs, and can be fetched after brew install git-lfs;

• git lfs fetch
• git lfs checkout

libpdfium.a for iOS is no longer built via qmake, but rather directly from pdfium with a few patches applied and one revert;

• git submodule update --init --recursive
• export PATH=$PATH:$PWD/depot_tools
• gclient config --unmanaged https://pdfium.googlesource.com/pdfium.git
• gclient sync
• cd pdfium
• patch -p1 < ../iosprecompiled/ios.patch
• git revert --strategy=ours 0e5d892fe86d7c2527d8f7b7ac2c5aa8fc77a7be
• reset/checkout all conflicts
  • git reset HEAD third_party/yasm/ .gitignore DEPS
  • git checkout third_party/yasm/ .gitignore DEPS
• cd ..
• python3 make.py run build-ios
• lipo -create pdfium/out/release-x64/obj/libpdfium.a pdfium/out/release-x86/obj/libpdfium.a pdfium/out/release-arm/obj/libpdfium.a pdfium/out/release-arm64/obj/libpdfium.a -o iosprecompiled/libpdfium.a

libpdfium.a for macOS can be built by generating the build using args in macosprecompiled/

• cd pdfium
• ../depot_tools/gn args ../macosprecompiled
• ../depot_tools/ninja -C ../macosxprecompiled/ -j6 pdfium_all
• mv ../macosxprecompiled/obj/libpdfium.a ../macosxprecompiled/