pthreads in libtool'd shared library...

[Chris Bowlby]

Hi All,

 I've been building a standard library for an application that I'm working 
on and noticed that once I started to attempt to work in threads the 
linking stage seems to have dropped the link to libc_r.so, as shown in the 
compiler details below:

/bin/bash ../../../libtool --mode=link g++  -g -O2   -L/usr/local/lib 
-L/usr/lib -L/usr/compat/linux/lib -o libtest.la -rpath 
/usr/local/data_cop/lib -module -Wsymbolic test.lo  -lc_r -lcrypt -lpq -lcipher
g++ -shared -nostdlib /usr/lib/crti.o 
/usr/lib/crtbeginS.o  .libs/test.o  -L/usr/local/lib -L/usr/lib 
-L/usr/compat/linux/lib -lcrypt -lpq -lcipher -lstdc++ -lm -lgcc 
/usr/lib/crtendS.o /usr/lib/crtn.o  -Wl,-soname -Wl,libtest.so.0 -o 
.libs/libtest.so.0
(cd .libs && rm -f libtest.so && ln -s libtest.so.0 libtest.so)
(cd .libs && rm -f libtest.so && ln -s libtest.so.0 libtest.so)
creating libtest.la
(cd .libs && rm -f libtest.la && ln -s ../libtest.la libtest.la)

If we look at the first part, the -lc_r is compiled into it, but once it 
creates the libtest.so.0 file, it forgets that I need to have that there, 
is there a parameter that I need to set somewhere in the configure.ac 
script or Makefile.am file so that libtool picks up that I need the 
pthreads library linked in?