add an env variable needed on 1.10 when creating the base sysimage (#912)

Author: KristofferC

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
         julia-version:
           - '1.6'
           - '1.9'
-          - '1.10-nightly'
+          - '1.10'
           - 'nightly'
         julia-arch:
           - 'x64'
@@ -75,4 +75,3 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # If authenticating with GitHub Actions token
           DOCUMENTER_KEY: ${{ secrets.DOCUMENTER_KEY }} # If authenticating with SSH deploy key
         run: julia --project=docs/ -e 'using Pkg; Pkg.instantiate(); include("docs/make.jl")'
-

src/PackageCompiler.jl

@@ -256,10 +256,11 @@ function create_fresh_base_sysimage(stdlibs::Vector{String}; cpu_target::String,
             new_sysimage_source_path = joinpath(tmp, "sysimage_packagecompiler_$(uuid1()).jl")
             write(new_sysimage_source_path, new_sysimage_content)
             try
-                cmd = `$(get_julia_cmd()) --cpu-target $cpu_target
+                cmd = addenv(`$(get_julia_cmd()) --cpu-target $cpu_target
                     --sysimage=$tmp_corecompiler_ji
                     $sysimage_build_args --output-o=$tmp_sys_o
-                    $new_sysimage_source_path`
+                    $new_sysimage_source_path`,
+                    "JULIA_LOAD_PATH" => "@stdlib")
                 @debug "running $cmd"
 
                 read(cmd)