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fix gcc-10 build (-fno-common) #4

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fix gcc-10 build (-fno-common) #4

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@trofi trofi commented Jun 4, 2022

gcc-10 changed the default from -fcommon to fno-common:
https://gcc.gnu.org/PR85678

As a result build of lvmrun fails as:

...
gcc -o lvmrun ... -lm -ldl
ld: core/module.o:(.bss+0x0): multiple definition of `bytes_ops'; core/loader.o:(.bss+0x0): first defined here
ld: core/fail.o:(.bss+0x0): multiple definition of `global_exn_frame'; core/evaluator.o:(.bss+0x10): first defined here
ld: core/signals.o:(.bss+0x8): multiple definition of `global_exn_frame'; core/evaluator.o:(.bss+0x10): first defined here
ld: heap/bytes.o:(.data.rel.local+0x0): multiple definition of `bytes_ops'; core/loader.o:(.bss+0x0): first defined here

The change drops excessive variable definitions from headers.

@trofi
fix gcc-10 build (-fno-common)
255c037 
gcc-10 changed the default from -fcommon to fno-common:
  https://gcc.gnu.org/PR85678

As a result build of lvmrun fails as:

    ...
    gcc -o lvmrun ... -lm -ldl
    ld: core/module.o:(.bss+0x0): multiple definition of `bytes_ops'; core/loader.o:(.bss+0x0): first defined here
    ld: core/fail.o:(.bss+0x0): multiple definition of `global_exn_frame'; core/evaluator.o:(.bss+0x10): first defined here
    ld: core/signals.o:(.bss+0x8): multiple definition of `global_exn_frame'; core/evaluator.o:(.bss+0x10): first defined here
    ld: heap/bytes.o:(.data.rel.local+0x0): multiple definition of `bytes_ops'; core/loader.o:(.bss+0x0): first defined here

The change drops excessive variable definitions from headers.
@trofi trofi mentioned this pull request Jun 4, 2022
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trofi added a commit to trofi/nixpkgs that referenced this pull request Jun 11, 2022
@trofi
haskellPackages.lvmrun: mark as proken
742dfb6 
The package fails to build with upstream gcc-10 as:

    ld: heap/bytes.o:(.data.rel.local+0x0): multiple definition of `bytes_ops';
      core/loader.o:(.bss+0x0): first defined here

Upstream report: Helium4Haskell/lvm#4
@trofi trofi mentioned this pull request Jun 11, 2022
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