[Haskell-cafe] Is anybody on 9.6.1 having problems profiling on a Mac?

[George Colpitts]

Forgot to add that my current workaround is to compile with "-static
-package-env=-" i.e.

ghc  -static -package-env=- -prof -fprof-auto  hello.hs


Adding  just  -package-env=- i.e. gives me the same error as compiling
without it.

 ghc   -package-env=- -prof -fprof-auto  hello.hs
[1 of 2] Compiling Main             ( hello.hs, hello.o )

hello.hs:1:1: error:
    Could not find module ‘Prelude’
    Perhaps you haven't installed the "p_dyn" libraries for package
‘base-4.18.0.0’?
    Use -v (or `:set -v` in ghci) to see a list of the files searched for.
  |
1 |
  | ^


Adding just -static gives

 ghc   -static -prof -fprof-auto  hello.hs
Loaded package environment from
/Users/gcolpitts/.ghc/x86_64-darwin-9.6.1/environments/default
[1 of 2] Compiling Main             ( hello.hs, hello.o ) [Missing object
file]
[2 of 2] Linking hello
ld: warning: directory not found for option '-L/opt/local/lib/'
ld: library not found for -lHStxmth-0.12.7.1-f954854b_p
clang: error: linker command failed with exit code 1 (use -v to see
invocation)
ghc-9.6.1: `gcc' failed in phase `Linker'. (Exit code: 1)


I can't find any doc saying that -static is required for profiling on the
Mac but perhaps that is the case?


On Sun, May 14, 2023 at 3:43 PM George Colpitts <george.colpitts at gmail.com>
wrote:

> Is anybody on 9.6.1 having problems profiling on a Mac? As I reported in
> https://gitlab.haskell.org/ghc/ghc/-/issues/23211
>
> ghc -prof -fprof-auto hello.hs
>
> where the file hello.hs consists of the line:
>
> main = print "hello"
>
> gets the error:
>
> Could not find module ‘Prelude’
>
>  Perhaps you haven't installed the "p_dyn" libraries for package
> ‘base-4.18.0.0’?
>
>
> It seems to me like a regression of the closed bug
> https://gitlab.haskell.org/ghc/ghc/-/issues/20707.
>
> Thanks
> George
>
>
>
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