Refactor --with-tune

Signed-off-by: demin.han <[email protected]>

Author: demin-han

configure

@@ -651,9 +651,9 @@ multilib_gen
 WITH_LANGUAGES
 WITH_SIM
 WITH_ISA_SPEC
-WITH_TUNE
 WITH_ABI
 WITH_ARCH
+WITH_TUNE
 enable_default_pie
 debug_info
 default_target
@@ -3999,19 +3999,16 @@ fi
 # Check whether --with-tune was given.
 if test ${with_tune+y}
 then :
-  withval=$with_tune;
-
-fi
-
+  withval=$with_tune; WITH_TUNE=--with-tune=$with_tune
 
-if test "x$with_tune" != "x"; then
-  WITH_TUNE="--with-tune=$with_tune"
-else
+else $as_nop
   WITH_TUNE=""
 
+
 fi
 
 
+
 # Check whether --with-isa-spec was given.
 if test ${with_isa_spec+y}
 then :
@@ -4069,7 +4066,6 @@ WITH_ARCH=--with-arch=$with_arch
 
 WITH_ABI=--with-abi=$with_abi
 
-
 WITH_ISA_SPEC=--with-isa-spec=$with_isa_spec
 
 WITH_SIM=$with_sim

configure.ac

@@ -81,16 +81,10 @@ AC_ARG_WITH(abi,
 AC_ARG_WITH(tune,
 	[AS_HELP_STRING([--with-tune=generic],
 		[Set the base RISC-V CPU, defaults to GCC's default])],
-	[]
+	[AC_SUBST(WITH_TUNE,--with-tune=$with_tune)],
+	[AC_SUBST(WITH_TUNE,"")]
 	)
 
-if test "x$with_tune" != "x"; then
-  WITH_TUNE="--with-tune=$with_tune"
-else
-  WITH_TUNE=""
-
-fi
-
 AC_ARG_WITH(isa-spec,
 	[AS_HELP_STRING([--with-isa-spec=20191213],
 		[Set the default ISA spec version, default to 20191213, available options: 2.2, 20190608, 20191213])],
@@ -125,7 +119,6 @@ AS_IF([test "x$with_abi" = xdefault],
 
 AC_SUBST(WITH_ARCH, --with-arch=$with_arch)
 AC_SUBST(WITH_ABI, --with-abi=$with_abi)
-AC_SUBST(WITH_TUNE)
 AC_SUBST(WITH_ISA_SPEC, --with-isa-spec=$with_isa_spec)
 AC_SUBST(WITH_SIM, $with_sim)
 AC_SUBST(WITH_LANGUAGES, $with_languages)