re PR libgcj/33085 (liblt_prog_compiler_pic_GCJ='-DDLL_EXPORT' is wrong)

PR libgcj/33085
* libtool.m4 (_LT_COMPILER_PIC) [ mingw, cygwin ] <GCJ>:
Do not use -DDLL_EXPORT.  Backport from upstream.

libjava/
PR libgcj/33085
* configure: Regenerate.

From-SVN: r132362