[gcc] GCC 4.5.0=>4.5.1

gcc/zlib/configure.ac

 dnl Process this with autoconf to create configure
 
-AC_PREREQ(2.59)
+AC_PREREQ(2.64)
 AC_INIT
 AC_CONFIG_SRCDIR([zlib.h])
 
 AM_ENABLE_MULTILIB(, ..)
 
 AC_CANONICAL_SYSTEM
 
 # This works around an automake problem.
 mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"
 AC_SUBST(mkinstalldirs)
@@ skipping 33 matching lines @@
 GCC_NO_EXECUTABLES
 
 # The same as in boehm-gc and libstdc++. Have to borrow it from there.
 # We must force CC to /not/ be precious variables; otherwise
 # the wrong, non-multilib-adjusted value will be used in multilibs.
 # As a side effect, we have to subst CFLAGS ourselves.
 
 m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
 m4_define([_AC_ARG_VAR_PRECIOUS],[])
 AC_PROG_CC
-m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
+m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
 
 AC_SUBST(CFLAGS)
 
 AC_PROG_LIBTOOL
 
 # Find CPP now so that any conditional tests below won't do it and
 # thereby make the resulting definitions conditional.
 AC_PROG_CPP
 
 if test -n "$with_cross_host"; then
@@ skipping 46 matching lines @@
 AM_CONDITIONAL(TARGET_LIBRARY, test -n "$with_target_subdir")
 
 if test "${multilib}" = "yes"; then
   multilib_arg="--enable-multilib"
 else
   multilib_arg=
 fi
 
 AC_CONFIG_FILES([Makefile])
 AC_OUTPUT