[EMAIL PROTECTED] writes:
> Using sem_open, sem_close, sem_post and sem_wait in my c++ file.
> compiled using command below:
This command line is almost completely bogus:
> g++ -g -I/opt/sfw/lib/gcc-lib/sparc-sun-solaris2.8/2.95.3/include -L
> /usr/lib/ -B /usr/lib/sparcv9/libpthread.so hello.cpp -o hello
1. The '-I/opt/sfw/lib/gcc-lib/sparc-sun-solaris2.8/2.95.3/include'
is unnecessary because 'gcc' (assuming it is 2.95.3) will add it
automatically.
1a. The '-L /usr/lib' is also unneccessary, since linker will look
there by default.
2. The '-B' means somethig else to 'gcc' as well.
3. System libraries should follow your sources/objects/libraries
on the link line.
4. You are trying to link 32-bit hello.o against 64-bit libpthread.so
Try this:
g++ -g -pthreads hello.cpp -o hello -lrt
> May I know what is wrong?
Just about everything on your
> and how can I find out which library are all
> these semaphore functions in?
$ /usr/ccs/bin/nm -pA /usr/lib/lib*.so | grep sem_open
/usr/lib/libposix4.so: 0000018648 T _sem_open
/usr/lib/libposix4.so: 0000018648 T sem_open
/usr/lib/librt.so: 0000018648 T _sem_open
/usr/lib/librt.so: 0000018648 T sem_open
> The man page doesn't help much :(
Yes, it does:
SYNOPSIS
cc [ flag... ] file... -lrt [ library... ]
^^^^
Cheers,
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