Compiling FreeBSD with non-standard flags.

[Alexander Kabaev]

Hello all,

> % make buildworld
> .....
> ===> libexec/atrun
> cc -O2 -fomit-frame-pointer -pipe  -DATJOB_DIR=\"/var/at/jobs/\"  -DLFILE=\"/var/at/jobs/.lockfile\"  -DLOADAVG_MX=1.5 -DATSPOOL_DIR=\"/var/at/spool\"  -DVERSION=\"2.9\" -DDAEMON_UID=1 -DDAEMON_GID=1  -DDEFAULT_BATCH_QUEUE=\'E\'  -DDEFAULT_AT_QUEUE=\'c\' -DPERM_PATH=\"/var/at/\" -I/usr/src/libexec/atrun/../../usr.bin/at -I/usr/src/libexec/atrun  -c /usr/src/libexec/atrun/atrun.c
> cc -O2 -fomit-frame-pointer -pipe  -DATJOB_DIR=\"/var/at/jobs/\"  -DLFILE=\"/var/at/jobs/.lockfile\"  -DLOADAVG_MX=1.5 -DATSPOOL_DIR=\"/var/at/spool\"  -DVERSION=\"2.9\" -DDAEMON_UID=1 -DDAEMON_GID=1  -DDEFAULT_BATCH_QUEUE=\'E\'  -DDEFAULT_AT_QUEUE=\'c\' -DPERM_PATH=\"/var/at/\" -I/usr/src/libexec/atrun/../../usr.bin/at -I/usr/src/libexec/atrun  -c /usr/src/libexec/atrun/gloadavg.c
> cc -O2 -fomit-frame-pointer -pipe  -DATJOB_DIR=\"/var/at/jobs/\"  -DLFILE=\"/var/at/jobs/.lockfile\"  -DLOADAVG_MX=1.5 -DATSPOOL_DIR=\"/var/at/spool\"  -DVERSION=\"2.9\" -DDAEMON_UID=1 -DDAEMON_GID=1  -DDEFAULT_BATCH_QUEUE=\'E\'  -DDEFAULT_AT_QUEUE=\'c\' -DPERM_PATH=\"/var/at/\" -I/usr/src/libexec/atrun/../../usr.bin/at -I/usr/src/libexec/atrun   -o atrun atrun.o gloadavg.o
> /usr/obj/usr/src/i386/usr/lib/libc.so: undefined reference to `pthread_mutex_destroy_int'
> /usr/obj/usr/src/i386/usr/lib/libc.so: undefined reference to `pthread_cond_destroy_exp'
> ..........
> 

There were a number of reports of buildworld breakage due to people using
non-default flags like -Os, -O2 and even -fomit-frame-pointer. While desire
to squeeze the very last drop of performance out of their systems is 
understandable goal, you should understand, that you are on your own while
you are doing that, especially right after a major GCC version upgrade.

I will try to fix this particular breakage when other, more pressing issues
have been addressed.

--
Alexander Kabaev