diff --git a/configure.in b/configure.in
index 9dcab0a7c3d4..35536119022f 100644
--- a/configure.in
+++ b/configure.in
@@ -3071,23 +3071,6 @@ dnl        AC_CHECK_LIB(resolv, res_ninit, AC_DEFINE(HAVE_RES_NINIT)))
 fi
 
 AC_LANG_CPLUSPLUS
-AC_CACHE_CHECK(
-    [for gnu_get_libc_version()],
-    ac_cv_func_gnu_get_libc_version,
-    [AC_TRY_LINK([
-        #ifdef HAVE_GNU_LIBC_VERSION_H
-        #include <gnu/libc-version.h>
-        #endif
-        ],
-        [const char *glibc_version = gnu_get_libc_version();],
-        [ac_cv_func_gnu_get_libc_version=yes],
-        [ac_cv_func_gnu_get_libc_version=no]
-        )]
-    )
-
-if test "$ac_cv_func_gnu_get_libc_version" = "yes"; then
-    AC_DEFINE(HAVE_GNU_GET_LIBC_VERSION)
-fi
 
 case $target_os in
     darwin*|mingw*|os2*)
diff --git a/js/src/configure.in b/js/src/configure.in
index 5da4641985e7..2157cfdbd06c 100644
--- a/js/src/configure.in
+++ b/js/src/configure.in
@@ -2566,24 +2566,6 @@ dnl    AC_CHECK_LIB(bind, res_ninit, AC_DEFINE(HAVE_RES_NINIT),
 dnl        AC_CHECK_LIB(resolv, res_ninit, AC_DEFINE(HAVE_RES_NINIT)))
 fi
 
-AC_LANG_CPLUSPLUS
-AC_CACHE_CHECK(
-    [for gnu_get_libc_version()],
-    ac_cv_func_gnu_get_libc_version,
-    [AC_TRY_LINK([
-        #ifdef HAVE_GNU_LIBC_VERSION_H
-        #include <gnu/libc-version.h>
-        #endif
-        ],
-        [const char *glibc_version = gnu_get_libc_version();],
-        [ac_cv_func_gnu_get_libc_version=yes],
-        [ac_cv_func_gnu_get_libc_version=no]
-        )]
-    )
-
-if test "$ac_cv_func_gnu_get_libc_version" = "yes"; then
-    AC_DEFINE(HAVE_GNU_GET_LIBC_VERSION)
-fi
 AC_LANG_C
 
 dnl **********************