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  • Matthew Pickering's avatar
    4e6c8019
    Always define __GLASGOW_HASKELL_PATCHLEVEL1/2__ macros · 4e6c8019
    Matthew Pickering authored and Marge Bot's avatar Marge Bot committed 
    As #21076 reports if you are using `-Wcpp-undef` then you get warnings
when using the `MIN_VERSION_GLASGOW_HASKELL` macro because
__GLASGOW_HASKELL_PATCHLEVEL2__ is very rarely explicitliy set (as
version numbers are not 4 components long).

This macro was introduced in 3549c952
and it seems the bug has existed ever since.

Fixes #21076
    4e6c8019
    History
    Always define __GLASGOW_HASKELL_PATCHLEVEL1/2__ macros
    Matthew Pickering authored and Marge Bot's avatar Marge Bot committed 
    As #21076 reports if you are using `-Wcpp-undef` then you get warnings
when using the `MIN_VERSION_GLASGOW_HASKELL` macro because
__GLASGOW_HASKELL_PATCHLEVEL2__ is very rarely explicitliy set (as
version numbers are not 4 components long).

This macro was introduced in 3549c952
and it seems the bug has existed ever since.

Fixes #21076
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