--- a/m4/std-gnu11.m4
+++ b/m4/std-gnu11.m4
@@ -185,8 +185,7 @@ AC_LANG_POP(C++)dnl
 # else ACTION-IF-UNAVAILABLE.
 AC_DEFUN([_AC_C_STD_TRY],
 [AC_MSG_CHECKING([for $CC option to enable ]m4_translit($1, [c], [C])[ features])
-AC_CACHE_VAL(ac_cv_prog_cc_$1,
-[ac_cv_prog_cc_$1=no
+ac_cv_prog_cc_$1=no
 ac_save_CC=$CC
 AC_LANG_CONFTEST([AC_LANG_PROGRAM([$2], [$3])])
 for ac_arg in '' $4
@@ -197,7 +196,6 @@ do
 done
 rm -f conftest.$ac_ext
 CC=$ac_save_CC
-])# AC_CACHE_VAL
 ac_prog_cc_stdc_options=
 case "x$ac_cv_prog_cc_$1" in
   x)
@@ -523,8 +521,7 @@ fi
 AC_DEFUN([_AC_CXX_STD_TRY],
 [AC_MSG_CHECKING([for $CXX option to enable ]m4_translit(m4_translit($1, [x], [+]), [a-z], [A-Z])[ features])
 AC_LANG_PUSH(C++)dnl
-AC_CACHE_VAL(ac_cv_prog_cxx_$1,
-[ac_cv_prog_cxx_$1=no
+ac_cv_prog_cxx_$1=no
 ac_save_CXX=$CXX
 AC_LANG_CONFTEST([AC_LANG_PROGRAM([$2], [$3])])
 for ac_arg in '' $4
@@ -535,7 +532,6 @@ do
 done
 rm -f conftest.$ac_ext
 CXX=$ac_save_CXX
-])# AC_CACHE_VAL
 ac_prog_cxx_stdcxx_options=
 case "x$ac_cv_prog_cxx_$1" in
   x)
--- a/m4/std-gnu23.m4
+++ b/m4/std-gnu23.m4
@@ -696,8 +696,7 @@ AC_DEFUN([_AC_PROG_CC_STDC_EDITION_TRY],
 [AC_REQUIRE([_AC_C_C$1_TEST_PROGRAM])]dnl
 [AS_IF([test x$ac_prog_cc_stdc = xno],
 [AC_MSG_CHECKING([for $CC option to enable C$1 features])
-AC_CACHE_VAL([ac_cv_prog_cc_c$1],
-[ac_cv_prog_cc_c$1=no
+ac_cv_prog_cc_c$1=no
 ac_save_CC=$CC
 AC_LANG_CONFTEST([AC_LANG_DEFINES_PROVIDED][$][ac_c_conftest_c$1_program])
 for ac_arg in '' m4_normalize(m4_defn([_AC_C_C$1_OPTIONS]))
@@ -707,7 +706,7 @@ do
   test "x$ac_cv_prog_cc_c$1" != "xno" && break
 done
 rm -f conftest.$ac_ext
-CC=$ac_save_CC])
+CC=$ac_save_CC
 AS_IF([test "x$ac_cv_prog_cc_c$1" = xno],
   [AC_MSG_RESULT([unsupported])],
   [AS_IF([test "x$ac_cv_prog_cc_c$1" = x],