use an explicit file extension when creating sysimage (#1119)

KristofferC · KristofferC · commit b79078358b27 · 2024-12-02T16:02:57.000+01:00
(cherry picked from commit ff78c38)
diff --git a/.ci/create_sysimage_and_run_tests.jl b/.ci/create_sysimage_and_run_tests.jl
@@ -1,6 +1,6 @@
-using PackageCompiler
+using PackageCompiler, Libdl
 
-sysimage = tempname()
+sysimage = tempname() * "." * Libdl.dlext
 
 if haskey(ENV, "BUILDKITE")
     ncores = Sys.CPU_THREADS
