* lib/target-libpath.exp: New file defining set_ld_library_path_env_vars
and restore_ld_library_path_env_vars.
* g++.dg/compat/compat.exp, lib/g++.exp, lib/gcc-dg.exp,
lib/gfortran.exp, lib/objc.exp, lib/treelang.exp: Use new procs.
* ada/acats/run_acats (LD_LIBRARY_PATH): Add previous LD_LIBRARY_PATH
to LD_LIBRARY_PATH. Export LD_LIBRARY_PATH.
* testsuite/lib/libffi-dg.exp: Use new procs in target-libpath.exp.
* testsuite/lib/libjava.exp,
testsuite/libjava.jacks/jacks.exp: Use new procs in target-libpath.exp.
* testsuite/lib/libmudflap.exp: Use new procs in target-libpath.exp.
* testsuite/lib/libstdc++.exp: Use new procs in target-libpath.exp.
From-SVN: r91137
1df8e83465