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config.h can't be prefixed unconditionally

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The script make-event-config.sed was mangling all the symbols by
prefixing them with "EVENT__".  The problem here is that some
symbols aren't for local consumption within libevent, but rather
influence other system header files (ex: __USE_FILE_OFFSET64 is
used by dozens of header files including <sys/sendfile.h>).

As a workaround, all symbols starting with a capital letter only
(with the exception of STDC_HEADERS which must also be left
untouched) will be mangled.

Future contributors will need to be aware of this distinction.
This commit is contained in:
Philip Prindeville 2018-04-18 15:09:35 -06:00 committed by Azat Khuzhin
parent c57f5c3490
commit 587e9f5828
No known key found for this signature in database
GPG Key ID: B86086848EF8686D
1 changed files with 7 additions and 3 deletions
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10
make-event-config.sed
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@ -18,6 +18,10 @@ $a\
\
#endif /* event2/event-config.h */
s/#\( *\)define /#\1define EVENT__/
s/#\( *\)undef /#\1undef EVENT__/
s/#\( *\)if\(n*\)def /#\1if\2def EVENT__/
/#\( *\)undef STDC_HEADERS\>/b
/#\( *\)define STDC_HEADERS\>/b
# Only rewrite symbols starting with capitals
s/#\( *\)define \([A-Z]\)/#\1define EVENT__\2/
s/#\( *\)undef \([A-Z]\)/#\1undef EVENT__\2/
s/#\( *\)if\(n*\)def \([A-Z]\)/#\1if\2def EVENT__\2/