kc3-lang/libevent/make-event-config.sed
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Hash : 63a054f8
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Date : 2018-04-18T15:09:35
config.h can't be prefixed unconditionally 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. (cherry picked from commit 587e9f5828c4eb3c6e79e9eb29f174e4ae0c05bd)
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make-event-config.sed
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# Sed script to postprocess config.h into event-config.h. 1i\ /* event2/event-config.h\ *\ * This file was generated by autoconf when libevent was built, and post-\ * processed by Libevent so that its macros would have a uniform prefix.\ *\ * DO NOT EDIT THIS FILE.\ *\ * Do not rely on macros in this file existing in later versions.\ */\ \ #ifndef EVENT2_EVENT_CONFIG_H_INCLUDED_\ #define EVENT2_EVENT_CONFIG_H_INCLUDED_\ $a\ \ #endif /* event2/event-config.h */ /#\( *\)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/