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| author | Karl Williamson <khw@cpan.org> | 2021-06-05 07:33:13 -0600 |
|---|---|---|
| committer | Karl Williamson <khw@cpan.org> | 2021-06-12 09:20:14 -0600 |
| commit | bfe5127121a2046fe9d996a64635f6f08d940528 (patch) | |
| tree | f624010676384b5484c0191c47b1cd430928b05b /config_h.SH | |
| parent | 19c4b24fc62a1e8dd1f7dcaaf337d0eb11dbb6b0 (diff) | |
| download | perl-bfe5127121a2046fe9d996a64635f6f08d940528.tar.gz | |
Configure changes for HAS_NON_INT_BITFIELDS
This probe has been available without my realizing it had been merged.
Some compilers, chiefly IBM, use only integer-size bitfields, warning
when presented with other-sized ones. Allowing other-sized fields is an
extension to the C standard.
These warnings don't affect the correctness of the code generated, but
very many are generated per run, potentially overwhelming the reader
into not noticing warnings that are important.
Diffstat (limited to 'config_h.SH')
| -rwxr-xr-x | config_h.SH | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/config_h.SH b/config_h.SH index 8264f91dce..69103e4195 100755 --- a/config_h.SH +++ b/config_h.SH @@ -2339,6 +2339,13 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un */ #$d_atanh HAS_ATANH /**/ +/* HAS_NON_INT_BITFIELDS: + * This symbol, if defined, indicates that the C compiler accepts, without + * error or warning, struct bitfields that are declared with sizes other + * than plain 'int'; for example 'unsigned char' is accepted. + */ +#$d_non_int_bitfields HAS_NON_INT_BITFIELDS /**/ + /* HAS_BUILTIN_CHOOSE_EXPR: * Can we handle GCC builtin for compile-time ternary-like expressions */ |