$ ./configure --help [...] Optional Features: [...] --enable-dns build with support for dns layer [default=yes] --enable-http build with support for http layer [default=yes] --enable-bevents build with support for buffer events [default=yes]
Changes:
1. This required me to move buffer_* and evbuffer_* function declarations
that were in event.h to a new file, evbuffer.h. Also, it looks like
buffer.c contains ev_buffer_* functions and evbuffer.c contains
buffer_* functions. This was like this before so I just tried to keep
things consistent overall when creating a new header file and went with
evbuffer.h. The flip-flop can be changed later. Also added evbuffer.h include
to various http and bufferevents specific modules/headers that required them.
2. This required creating test/regress_buffer.c and moving bevents
regress specific code into that module. Calls to higher level regress
suite collection functions are conditionally ifdef'd via HAVE_EVENT_DNS,
HAVE_EVENT_HTTP, etc. (which configure takes care of).
3. In both cases of above, the actual conditional building of modules
is handled via ifdef's within Makefile.am that configure takes care of.
4. Modified configure.in to not bother doing Fortran, C++, or ObjC specific
tests. Libtool likes to try it's own checks as well, but I just redefined
those with simple null macros.
5. Throughout this all: substantially increased my derision for GNU auto*
tools.
Pros:
1. Significantly smaller libevent library footprint but the ability to
include everything normally.
2. Default, nothing changes, all API layers are enabled per normal.
3. Couple of useful macros added to configure.in which should make adding
any other enable/disable and build checks quicker.
Cons:
1. http code is highly dependent on bufferevents code. As such, one cannot
use "--enable-bufferevents=no" w/ "--enable-http=no". If bufferevent code
is disabled, http code must be disabled.
2. rpc code (which AFAICT is regress testing specific) is tied with http
code and shares the same characteristics of above.
Builds+size+make verify checks:
$ set=( "--disable-none" \
"--disable-dns" \
"--disable-http" \
"--disable-dns --disable-http" \
"--disable-bevents --disable-http" \
"--disable-bevents --disable-http --disable-dns" ); \
a=${#set[*]}; i=0; while [[ $i -lt $a ]]; do f="${set[i++]}"; echo $f; \
(./configure $f && make clean && make) 1>/tmp/error.out 2>&1 \
|| (cat /tmp/error.out && break); \
size .libs/libevent.so; \
make verify 2>&1 | egrep FAIL && break; \
printf "\n"; done
--disable-none
text data bss dec hex filename
67115 1120 6904 75139 12583 .libs/libevent.so
--disable-dns
text data bss dec hex filename
48804 1040 6328 56172 db6c .libs/libevent.so
--disable-http
text data bss dec hex filename
45589 840 708 47137 b821 .libs/libevent.so
--disable-dns --disable-http
text data bss dec hex filename
26603 728 132 27463 6b47 .libs/libevent.so
--disable-bevents --disable-http
text data bss dec hex filename
37882 744 704 39330 99a2 .libs/libevent.so
--disable-bevents --disable-http --disable-dns
text data bss dec hex filename
18969 628 128 19725 4d0d .libs/libevent.so
This patch is 50k, but is mostly just -+ of moving buffer-specific code from
one file to another and the such. Attached as bzip2 here, and also raw at
this url: http://www.anodized.com/~clayne/libevent.2007092600.diff
-cl
libevent.2007092600.diff.bz2
Description: Binary data
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