FYI - Build problems when an RPM version is installed

Hello,

I don't know if this is worth mentioning, but when I tried to
build the Sept. 11 snapshot on a machine which has the 7.0.2 RPMS
installed, I did a:

./configure
gmake

and got the following error:

gmake[4]: Entering directory
`/usr/src/pgsql/src/backend/storage/ipc'
gcc -c  -I../../../../src/include  -O2 -Wall -Wmissing-prototypes
-Wmissing-declarations ipc.c -o ipc.o
ipc.c: In function `IPCPrivateSemaphoreKill':
ipc.c:240: storage size of `semun' isn't known
ipc.c:240: warning: unused variable `semun'
ipc.c: In function `IpcSemaphoreCreate':
ipc.c:293: storage size of `semun' isn't known
ipc.c:293: warning: unused variable `semun'
ipc.c: In function `IpcSemaphoreKill':
ipc.c:392: storage size of `semun' isn't known
ipc.c:392: warning: unused variable `semun'
ipc.c: In function `IpcSemaphoreGetCount':
ipc.c:495: storage size of `dummy' isn't known
ipc.c:495: warning: unused variable `dummy'
ipc.c: In function `IpcSemaphoreGetValue':
ipc.c:506: storage size of `dummy' isn't known
ipc.c:506: warning: unused variable `dummy'
gmake[4]: *** [ipc.o] Error 1
gmake[4]: Leaving directory
`/usr/src/pgsql/src/backend/storage/ipc'
gmake[3]: *** [ipc-recursive] Error 2
gmake[3]: Leaving directory `/usr/src/pgsql/src/backend/storage'
gmake[2]: *** [storage-recursive] Error 2
gmake[2]: Leaving directory `/usr/src/pgsql/src/backend'
gmake[1]: *** [all] Error 2
gmake[1]: Leaving directory `/usr/src/pgsql/src'
gmake: *** [all] Error 2

It seems to be that HAVE_UNION_SEMUN is set by configure, because
it appears in the file /usr/include/pgsql/storage/ipc.h, which is
somehow included in the configure test. During the build process,
however, the RPM headers are, properly, not included. Moving
/usr/include/pgsql to /tmp allows for the build to take place, so
no harm no foul. I'm not sure if this is a problem or not, but
its nice to be able to run snapshots on the same machine as
RPM-based production versions for development.

For what its worth, 

Mike Mascari