Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC

Commits:

• 016fa306
  by Samuel Thibault at 2026-02-18T05:08:35-05:00

  Fix linking against libm by moving the -lm option
  
  For those systems that need -lm for getting math functions, this is
  currently added on the link line very early, before the object files being
  linked together. Newer toolchains enable --as-needed by default, which means
  -lm is ignored at that point because no object requires a math function
  yet. With such toolchains, we thus have to add -lm after the objects, so the
  linker actually includes libm in the link.
  

1 changed file:

• compiler/GHC/Linker/Dynamic.hs

Changes:

             runLink logger tmpfs linker_config (

                     map Option verbFlags

-                 ++ libmLinkOpts platform

                  ++ [ Option "-o"

                     , FileOption "" output_fn

                     ]

                     --    driver is a more pragmatic solution.

                  ++ [ Option "-Wl,--Bsymbolic,--experimental-pic,--unresolved-symbols=import-dynamic" | arch == ArchWasm32 ]

                  ++ extra_ld_inputs

+                 ++ libmLinkOpts platform

                  ++ map Option lib_path_opts

                  ++ map Option pkg_lib_path_opts

                  ++ map Option pkg_link_opts