Lighttpd

./configure \
--prefix=/usr/local/lighttpd \
--with-mysql=/usr/local/mysql/bin/mysql_config \
--with-ldap \
--with-openssl=/opt/local/include/openssl \
--with-kerberos5 \
--with-pcre \
--with-bzip2 \
--disable-ipv6 \
--with-lua \
--with-memcache \
--with-webdav-props \
--with-webdav-locks

...

 gcc -DHAVE_CONFIG_H -DLIBRARY_DIR=\"/usr/local/lighttpd/lib\" -I. -I. -I.. -D_REENTRANT -D__EXTENSIONS__ -I/opt/local/include/openssl/include -I/opt/local/include -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGE_FILES -g -O2 -Wall -W -Wshadow -pedantic -std=gnu99 -MT liblightcomp_la-network_writev.lo -MD -MP -MF .deps/liblightcomp_la-network_writev.Tpo -c network_writev.c  -fno-common -DPIC -o .libs/liblightcomp_la-network_writev.o
network_writev.c:61:2: #error "sysconf() doesnt return _SC_IOV_MAX ..., check the output of 'man writev' for the EINVAL error and send the output to jan@kneschke.de" 
network_writev.c: In function `network_write_chunkqueue_writev':
network_writev.c:71: error: `max_chunks' undeclared (first use in this function)
network_writev.c:71: error: (Each undeclared identifier is reported only once
network_writev.c:71: error: for each function it appears in.)
make[2]: *** [liblightcomp_la-network_writev.lo] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

[EINVAL]           Iovcnt was less than or equal to 0, or greater than UIO_MAXIOV.

[EINVAL]           One of the iov_len values in the iov array was negative.

[EINVAL]           The sum of the iov_len values in the iov array over-flowed a 32-bit integer.

Darwin xxx.xxxxxxx.xxx 7.9.0 Darwin Kernel Version 7.9.0: Wed Mar 30 20:11:17 PST 2005; root:xnu/xnu-517.12.7.obj~1/RELEASE_PPC  Power Macintosh powerpc

-- Todd Woodward <toddw