Add openfhe-julia (JuliaPackaging#7879)

* Add openfhe-julia

* Rename dir to match product name (?)

* Build for all Julia versions

* Remove Julia v1.6 build

* Update O/openfhe_julia/build_tarballs.jl

Co-authored-by: Mosè Giordano <[email protected]>

* Remove manual removal of Julia v1.6

---------

Co-authored-by: Mosè Giordano <[email protected]>

O/openfhe_julia/build_tarballs.jl

@@ -0,0 +1,71 @@
+# Note that this script can accept some limited command-line arguments, run
+# `julia build_tarballs.jl --help` to see a usage message.
+using BinaryBuilder, Pkg
+
+# See https://github.com/JuliaLang/Pkg.jl/issues/2942
+# Once this Pkg issue is resolved, this must be removed
+uuid = Base.UUID("a83860b7-747b-57cf-bf1f-3e79990d037f")
+delete!(Pkg.Types.get_last_stdlibs(v"1.6.3"), uuid)
+
+name = "openfhe_julia"
+version = v"0.1.1"
+
+# Collection of sources required to complete build
+sources = [
+    GitSource("https://github.com/sloede/openfhe-julia.git",
+              "e4be04ac212508869efb140d55fdf622181e79ee"),
+]
+
+# Bash recipe for building across all platforms
+script = raw"""
+cd $WORKSPACE/srcdir/openfhe-julia/
+
+mkdir build && cd build
+
+cmake .. \
+  -DCMAKE_INSTALL_PREFIX=$prefix \
+  -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TARGET_TOOLCHAIN} \
+  -DCMAKE_BUILD_TYPE=Release \
+  -DJulia_PREFIX=$prefix
+
+make -j${nproc}
+make install
+"""
+
+# These are the platforms we will build for by default, unless further
+# platforms are passed in on the command line
+include("../../L/libjulia/common.jl")
+platforms = vcat(libjulia_platforms.(julia_versions)...)
+
+# We cannot build with musl since OpenFHE requires the `execinfo.h` header for `backtrace`
+platforms = filter(p -> libc(p) != "musl", platforms)
+
+# PowerPC and 32-bit x86 platforms are not supported by OpenFHE
+platforms = filter(p -> arch(p) != "i686", platforms)
+platforms = filter(p -> arch(p) != "powerpc64le", platforms)
+
+# Expand C++ string ABIs since we use std::string
+platforms = expand_cxxstring_abis(platforms)
+
+
+# The products that we will ensure are always built
+products = [
+    LibraryProduct("libopenfhe_julia", :libopenfhe_julia),
+]
+
+# Dependencies that must be installed before this package can be built
+dependencies = [
+    BuildDependency(PackageSpec(;name="libjulia_jll", version=v"1.10.8")),
+    Dependency(PackageSpec(name="libcxxwrap_julia_jll", uuid="3eaa8342-bff7-56a5-9981-c04077f7cee7")),
+    Dependency(PackageSpec(name="OpenFHE_jll", uuid="a2687184-f17b-54bc-b2bb-b849352af807")),
+    # For OpenMP we use libomp from `LLVMOpenMP_jll` where we use LLVM as compiler (BSD
+    # systems), and libgomp from `CompilerSupportLibraries_jll` everywhere else.
+    Dependency(PackageSpec(name="CompilerSupportLibraries_jll", uuid="e66e0078-7015-5450-92f7-15fbd957f2ae");
+               platforms=filter(!Sys.isbsd, platforms)),
+    Dependency(PackageSpec(name="LLVMOpenMP_jll", uuid="1d63c593-3942-5779-bab2-d838dc0a180e");
+               platforms=filter(Sys.isbsd, platforms)),
+]
+
+# Build the tarballs, and possibly a `build.jl` as well.
+build_tarballs(ARGS, name, version, sources, script, platforms, products, dependencies;
+               julia_compat="1.6", preferred_gcc_version = v"10.2.0")