Re: [PATCH]: ld/Makefile.am

[Ian Lance Taylor <ian at zembu dot com>]

   Date: Fri, 10 Mar 2000 13:19:24 -0800
   From: "H . J . Lu" <hjl@lucon.org>

   Please remember that ld/ld-new is called by collect2 which is called
   by the new gcc. When the new gcc runs, it sets up GCC_EXEC_PREFIX,
   INIT_ENVIRONMENT, COMPILER_PATH and LIBRARY_PATH which point to
   itself which is the new gcc. When collect2 calls ld/ld-new, it
   passes all those to ld/ld-new. When ld/ld-new calls "gcc", which
   is the correct compiler to build the whole chain, that gcc driver
   will see GCC_EXEC_PREFIX, INIT_ENVIRONMENT, COMPILER_PATH and
   LIBRARY_PATH set up by the new gcc. Of course, it won't work.
   ld/ld-new tries 4 times to relink the new ld. Every time it will
   append at least COMPILER_PATH and maybe other environment variables.
   It won't help anything.

When ld-new is a shell script, it is doing a special case of
relinking.  The shell script could look down COMPILER_PATH and if it
is going to reinvoke itself.  If so, it could remove the directory
from COMPILER_PATH.

Perhaps we could make this a special patch in the ld libtool support.

Ian