On Thu, Sep 01, 2005 at 03:33:44PM +1000, Carl Brewer wrote:

> Checking your choice of C compiler and flags for coherency...
> I've tried to compile and run the following simple program:
> 
> #include <stdio.h>
> int main() { printf("Ok\n"); return(0); }
> 
> I used the command:
> 
>         cc -o try -O2 -D_REENTRANT -I/usr/include -I/usr/pkg/include 
> -fno-strict-aliasing -pipe -I/usr/pkg/include -L/usr/pkg/lib try.c -lm 
> -lcrypt -lpthread
>          ./try
> 
> and I got the following output:
> 
> Shared object "libpthread.so.20" not found
> The program compiled OK, but exited with status 1.
> You have a problem.  Shall I abort Configure [y]
> Ok.  Stopping Configure.
> *** Error code 1
> 
> Stop.
> make: stopped in /usr/pkgsrc/lang/perl5
> 
> 
> 
> This is bogus, pth is installed :
> pth-2.0.0nb2        GNU Portable Thread library

libpthread is being found at link time, but there is no rpath so it
can't be found at runtime.

the command line needs to include ${LDFLAGS}, which will pass the
required rpath to the linker.

that said, I have no idea whether perl threads even work with GNU pth
at all.

grant.