Log environment variables in set_ld_library_path_env_vars

GNU linker sets DT_RPATH from the environment variable LD_RUN_PATH.
set_ld_library_path_env_vars sets a few environment variables including
LD_RUN_PATH.  This patch logs all environment variables set by
set_ld_library_path_env_vars so that one can recreate the same
executable as "make check" run.

	PR testsuite/60590
	* lib/target-libpath.exp (set_ld_library_path_env_vars): Log
	LD_LIBRARY_PATH, LD_RUN_PATH, SHLIB_PATH, LD_LIBRARY_PATH_32,
	LD_LIBRARY_PATH_64 and DYLD_LIBRARY_PATH.

From-SVN: r208685

gcc/testsuite/ChangeLog

+2014-03-19  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR testsuite/60590
+	* lib/target-libpath.exp (set_ld_library_path_env_vars): Log
+	LD_LIBRARY_PATH, LD_RUN_PATH, SHLIB_PATH, LD_LIBRARY_PATH_32,
+	LD_LIBRARY_PATH_64 and DYLD_LIBRARY_PATH.
+
 2014-03-19  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/60332

gcc/testsuite/lib/target-libpath.exp

@@ -155,7 +155,12 @@ proc set_ld_library_path_env_vars { } {
     setenv DYLD_LIBRARY_PATH "$ld_library_path"
   }
 
-  verbose -log "set_ld_library_path_env_vars: ld_library_path=$ld_library_path"
+  verbose -log "LD_LIBRARY_PATH=[getenv LD_LIBRARY_PATH]"
+  verbose -log "LD_RUN_PATH=[getenv LD_RUN_PATH]"
+  verbose -log "SHLIB_PATH=[getenv SHLIB_PATH]"
+  verbose -log "LD_LIBRARY_PATH_32=[getenv LD_LIBRARY_PATH_32]"
+  verbose -log "LD_LIBRARY_PATH_64=[getenv LD_LIBRARY_PATH_64]"
+  verbose -log "DYLD_LIBRARY_PATH=[getenv DYLD_LIBRARY_PATH]"
 }
 
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