#14994: ghc api: `load LoadAllTargets` is not idempotent -------------------------------------+------------------------------------- Reporter: int-e | Owner: (none) Type: bug | Status: new Priority: high | Milestone: 8.6.1 Component: GHC API | Version: 8.4.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by int-index): I tried to tackle this and couldn't reproduce — I've run the compiled binary and it prints `42`. Also, I've had to add `import GHC` to compile. With a freshly built compiler, here are the steps I took. Installed `ghc-paths`: {{{ [nix-shell:~/Projects/ghc2]$ cabal install --with- compiler=`pwd`/inplace/bin/ghc-stage2 --package- db=`pwd`/inplace/lib/package.conf.d ghc-paths --allow-newer Resolving dependencies... Configuring ghc-paths-0.1.0.9... Building ghc-paths-0.1.0.9... Installed ghc-paths-0.1.0.9 }}} Tried to build: {{{ [nix-shell:~/Projects/ghc2]$ inplace/bin/ghc-stage2 T14994.hs [1 of 1] Compiling Main ( T14994.hs, T14994.o ) T14994.hs:19:13: error: Not in scope: ‘ghcMode’ | 19 | ghcMode = CompManager, | ^^^^^^^ T14994.hs:20:13: error: Not in scope: ‘hscTarget’ | 20 | hscTarget = HscInterpreted, | ^^^^^^^^^ T14994.hs:21:13: error: Not in scope: ‘ghcLink’ | 21 | ghcLink = LinkInMemory, | ^^^^^^^ T14994.hs:22:13: error: Not in scope: ‘verbosity’ | 22 | verbosity = 0 | ^^^^^^^^^ }}} Added `import GHC`, tried to build: {{{ [nix-shell:~/Projects/ghc2]$ inplace/bin/ghc-stage2 T14994.hs [1 of 1] Compiling Main ( T14994.hs, T14994.o ) T14994.hs:6:1: error: Could not find module ‘GHC’ It is a member of the hidden package ‘ghc-8.5’. You can run ‘:set -package ghc’ to expose it. (Note: this unloads all the modules in the current scope.) Use -v to see a list of the files searched for. }}} Modified the build command by adding `-package ghc`: {{{ [nix-shell:~/Projects/ghc2]$ inplace/bin/ghc-stage2 T14994.hs -package ghc [1 of 1] Compiling Main ( T14994.hs, T14994.o ) Linking T14994 ... }}} Running: {{{ [nix-shell:~/Projects/ghc2]$ ./T14994 42 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14994#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler