Ralf Wildenhues <ralf.wildenh...@gmx.de> wrote on 03/12/2009 08:20:22:
> From: Ralf Wildenhues <ralf.wildenh...@gmx.de> > To: Joakim Tjernlund <joakim.tjernl...@transmode.se> > Cc: Bob Friesenhahn <bfrie...@simple.dallas.tx.us>, libtool@gnu.org > Date: 03/12/2009 08:20 > Subject: Re: -fpic support in libtool? > > * Joakim Tjernlund wrote on Thu, Dec 03, 2009 at 08:06:25AM CET: > > > Libtool can be influenced by the configure script by influencing this > > > definition which gets output in the libtool script: > > > > > > # Additional compiler flags for building library objects. > > > pic_flag=" -fPIC -DPIC" > > > > > > This seems to be controlled by the lt_prog_compiler_pic configure > > > script variable. > > > > hmm, not sure what/if you are suggesting. Should I just try override the > > definition of pic_flag? In my configure.ac or somewhere else? > > You can probably get away with overriding lt_prog_compiler_pic, > lt_prog_compiler_pic_CXX, ..., in configure.ac, when doing it *after* > the AC_PROG_LIBTOOL aka LT_INIT invocation, and before either of > AC_OUTPUT or LT_OUTPUT. However, this is not recommended, doing this > will let configure test the wrong pic_flag (i.e., the one it sets rather > than your override), and if this breaks now or in a later release you > get to keep the pieces. > > We should probably change the code so that the override can be done > before AC_PROG_LIBTOOL, so that at least -DPIC is added consistently, > and that the compile test uses the right flag. Would it be possible to write something in acinclude.m4 that will override the -fPIC flag? Jocke _______________________________________________ http://lists.gnu.org/mailman/listinfo/libtool
