Unable to build SVN HEAD on Fedora 7

Ran into a compilation error after checking out SVN HEAD.

Configure command used:
./configure --prefix=/usr/local/dev/axis2-svn

Make command:
make all

Make output:
...
[snipped successful compilations]
make[5]: Entering directory `/home/shaun/src/axis2c-src-svn/util/src'
/bin/sh ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I.. -I../include -g -O2 -D_LARGEFILE64_SOURCE -ansi -Wall -Wno-implicit-function-declaration -Werror -MT log.lo -MD -MP -MF .deps/log.Tpo -c -o log.lo log.c
gcc -DHAVE_CONFIG_H -I. -I.. -I../include -g -O2 -D_LARGEFILE64_SOURCE -ansi -Wall -Wno-implicit-function-declaration -Werror -MT log.lo -MD -MP -MF .deps/log.Tpo -c log.c -fPIC -DPIC -o .libs/log.o
log.c: In function 'axutil_log_create':
log.c:130: error: 'F_OK' undeclared (first use in this function)
log.c:130: error: (Each undeclared identifier is reported only once
log.c:130: error: for each function it appears in.)
make[5]: *** [log.lo] Error 1
make[5]: Leaving directory `/home/shaun/src/axis2c-src-svn/util/src'

This appears to be caused by a change to util/include/platforms/unix/axutil_unix.h in revision 544112.
Two references to unistd.h were commented out, and uncommenting one of these fixes the problem.

Also, defining the preprocessor symbol _BSD_SOURCE fixes this problem since fcntl.h (included as well) will define F_OK if _BSD_SOURCE is defined.