Consider making a future/test build with Cheerp

The developer of emscripten himself suggests using Cheerp for projects complaining about memory fragmentation (⚠ add reference).

I know it is too early to conclude anything yet but should we eventually happen to exhaust all of our options with https://github.com/paulo-coutinho/pdfium-lib/issues/33, Cheerp might provide a solution. It is GPLv2 for open-source projects and PDFium is open-source with its BSD license.

This is just a suggestion.

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https://leaningtech.com/cheerp/ https://medium.com/leaningtech/best-in-class-webassembly-with-cheerp-2-5-rc1-aa44951bc0f0

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Getting started

mkdir cheerp
cd    cheerp
wget https://launchpad.net/cheerp/trunk/cheerp-2.5/+download/cheerp-llvm-clang-2.5.tar.gz
tar xvf cheerp-llvm-clang-2.5.tar.gz
cd      cheerp-llvm-clang-2.5
cat README.md

mkdir build
cd    build
cmake -C ../CheerpCmakeConf.cmake -DCMAKE_BUILD_TYPE=Release ..
make #-j16
cd bin
ls

cetin@sert-works:~/dn/cheerp/cheerp-llvm-clang-2.5/build/bin$ ls
FileCheck     clang-import-test      llvm-c-test     llvm-extract     llvm-opt-report  llvm-tblgen
arcmt-test    clang-offload-bundler  llvm-cat        llvm-go          llvm-pdbutil     llvm-xray
bugpoint      clang-rename           llvm-config     llvm-lib         llvm-profdata    not
c-arcmt-test  clang-tblgen           llvm-cov        llvm-link        llvm-ranlib      obj2yaml
c-index-test  count                  llvm-cvtres     llvm-lit         llvm-rc          opt
clang         diagtool               llvm-cxxdump    llvm-lto         llvm-readelf     sancov
clang++       llc                    llvm-cxxfilt    llvm-lto2        llvm-readobj     sanstats
clang-6.0     lli                    llvm-diff       llvm-mc          llvm-rtdyld      scan-build
clang-check   lli-child-target       llvm-dis        llvm-mcmarkup    llvm-size        scan-view
clang-cl      llvm-PerfectShuffle    llvm-dlltool    llvm-modextract  llvm-split       verify-uselistorder
clang-cpp     llvm-ar                llvm-dsymutil   llvm-mt          llvm-stress      yaml-bench
clang-diff    llvm-as                llvm-dwarfdump  llvm-nm          llvm-strings     yaml2obj
clang-format  llvm-bcanalyzer        llvm-dwp        llvm-objdump     llvm-symbolizer

[paulocoutinhox]

I talked with “Alessandro Pignotti” on Gitter and he sad that in two days +/- a nightly build will be released with the master version.

https://gitter.im/leaningtech/cheerp

[paulocoutinhox]

Ok, i will generate the JS file and maybe ignore the HTML for this target.

Ah, i make it work locally hacking the Google files inside the Dockerfile, and now im testing to upload to github actions after all steps to compile pdfium works (only left the cheerp compile it with success).

auhauhauhahuahu