Re: compiling with shared libraries

[Andrew Haley <aph at redhat dot com>]

Per Bothner writes:
 > Andrew Haley wrote:
 > > I think I may know what causes this.  Please try one experiment:
 > > compile everything PIC, including the executable.
 > 
 > That worked.  Thanks!  The key is that the jvgenmain-generated .o file
 > also needs to be compiled with -fPIC.  Would it make sense to make -fPIC
 > the default when compiling that .o file?

Probably.  The cause of the problem is that only PIC code may be
linked against libraries linked with -Bsymbolic, but -Bsymbolic is
required for correct resolution of Java name spaces.  It's a weird
one, for sure.

I guess, at least, we need a FAQ for this.

 > I then had to figure out how to coax automake+libtool to add the -fPIC.
 > My quick-and-dirty fix:
 > AC_DISABLE_STATIC (in configure.in)
 > AM_CFLAGS = -fPIC
 > 
 > And add $(AM_CLFAGS) to the command to link the executable.

Andrew.