diff --git a/configure b/configure
index 4305ed4..f6a24a1 100755
--- a/configure
+++ b/configure
@@ -633,7 +633,6 @@ infodir
 docdir
 oldincludedir
 includedir
-runstatedir
 localstatedir
 sharedstatedir
 sysconfdir
@@ -714,7 +713,6 @@ datadir='${datarootdir}'
 sysconfdir='${prefix}/etc'
 sharedstatedir='${prefix}/com'
 localstatedir='${prefix}/var'
-runstatedir='${localstatedir}/run'
 includedir='${prefix}/include'
 oldincludedir='/usr/include'
 docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -967,15 +965,6 @@ do
   | -silent | --silent | --silen | --sile | --sil)
     silent=yes ;;
 
-  -runstatedir | --runstatedir | --runstatedi | --runstated \
-  | --runstate | --runstat | --runsta | --runst | --runs \
-  | --run | --ru | --r)
-    ac_prev=runstatedir ;;
-  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
-  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
-  | --run=* | --ru=* | --r=*)
-    runstatedir=$ac_optarg ;;
-
   -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
     ac_prev=sbindir ;;
   -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1113,7 +1102,7 @@ fi
 for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
 		datadir sysconfdir sharedstatedir localstatedir includedir \
 		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
-		libdir localedir mandir runstatedir
+		libdir localedir mandir
 do
   eval ac_val=\$$ac_var
   # Remove trailing slashes.
@@ -1266,7 +1255,6 @@ Fine tuning of the installation directories:
   --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
   --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
   --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
-  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
   --libdir=DIR            object code libraries [EPREFIX/lib]
   --includedir=DIR        C header files [PREFIX/include]
   --oldincludedir=DIR     C header files for non-gcc [/usr/include]
@@ -3316,7 +3304,7 @@ else
 fi
 
 if test "x$enable_multilib" != xno; then :
-  newlib_multilib_names="rv32i-ilp32 rv32iac-ilp32 rv32im-ilp32 rv32imac-ilp32 rv32imafc-ilp32f rv64imac-lp64 rv64imafdc-lp64d"
+  newlib_multilib_names="rv32i-ilp32 rv32iac-ilp32 rv32im-ilp32 rv32imac-ilp32 rv32imafc-ilp32f rv64im-lp64 rv64imac-lp64 rv64imafdc-lp64d"
 
 else
   newlib_multilib_names="$with_arch-$with_abi"
diff --git a/configure.ac b/configure.ac
index f82f833..c99eeb8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -103,7 +103,7 @@ AS_IF([test "x$enable_multilib" != xno],
         [AC_SUBST(glibc_multilib_names,"$with_arch-$with_abi")])
 
 AS_IF([test "x$enable_multilib" != xno],
-        [AC_SUBST(newlib_multilib_names,"rv32i-ilp32 rv32iac-ilp32 rv32im-ilp32 rv32imac-ilp32 rv32imafc-ilp32f rv64imac-lp64 rv64imafdc-lp64d")],
+        [AC_SUBST(newlib_multilib_names,"rv32i-ilp32 rv32iac-ilp32 rv32im-ilp32 rv32imac-ilp32 rv32imafc-ilp32f rv64im-lp64 rv64imac-lp64 rv64imafdc-lp64d")],
         [AC_SUBST(newlib_multilib_names,"$with_arch-$with_abi")])
 
 AC_ARG_ENABLE(gcc-checking,
Submodule riscv-gcc contains modified content
diff --git a/riscv-gcc/gcc/config/riscv/t-elf-multilib b/riscv-gcc/gcc/config/riscv/t-elf-multilib
index 19f9434616c..0080be67755 100644
--- a/riscv-gcc/gcc/config/riscv/t-elf-multilib
+++ b/riscv-gcc/gcc/config/riscv/t-elf-multilib
@@ -1,6 +1,6 @@
 # This file was generated by multilib-generator with the command:
-#  ./multilib-generator rv32i-ilp32--c rv32im-ilp32--c rv32iac-ilp32-- rv32imac-ilp32-- rv32imafc-ilp32f-rv32imafdc- rv64imac-lp64-- rv64imafdc-lp64d--
-MULTILIB_OPTIONS = march=rv32i/march=rv32ic/march=rv32im/march=rv32imc/march=rv32iac/march=rv32imac/march=rv32imafc/march=rv32imafdc/march=rv32gc/march=rv64imac/march=rv64imafdc/march=rv64gc mabi=ilp32/mabi=ilp32f/mabi=lp64/mabi=lp64d
+#  ./multilib-generator rv32i-ilp32--c rv32im-ilp32--c rv32iac-ilp32-- rv32imac-ilp32-- rv32imafc-ilp32f-rv32imafdc- rv64im-lp64-- rv64imac-lp64-- rv64imafdc-lp64d--
+MULTILIB_OPTIONS = march=rv32i/march=rv32ic/march=rv32im/march=rv32imc/march=rv32iac/march=rv32imac/march=rv32imafc/march=rv32imafdc/march=rv32gc/march=rv64im/march=rv64imac/march=rv64imafdc/march=rv64gc mabi=ilp32/mabi=ilp32f/mabi=lp64/mabi=lp64d
 MULTILIB_DIRNAMES = rv32i \
 rv32ic \
 rv32im \
@@ -10,6 +10,7 @@ rv32imac \
 rv32imafc \
 rv32imafdc \
 rv32gc \
+rv64im \
 rv64imac \
 rv64imafdc \
 rv64gc ilp32 \
@@ -21,6 +22,7 @@ march=rv32im/mabi=ilp32 \
 march=rv32iac/mabi=ilp32 \
 march=rv32imac/mabi=ilp32 \
 march=rv32imafc/mabi=ilp32f \
+march=rv64im/mabi=lp64 \
 march=rv64imac/mabi=lp64 \
 march=rv64imafdc/mabi=lp64d
 MULTILIB_REUSE = march.rv32i/mabi.ilp32=march.rv32ic/mabi.ilp32 \