diff -up sqlite-src-3120200/configure.ac.malloc_usable_size sqlite-src-3120200/configure.ac
--- sqlite-src-3120200/configure.ac.malloc_usable_size	2016-04-25 09:46:48.134690570 +0200
+++ sqlite-src-3120200/configure.ac	2016-04-25 09:48:41.622637181 +0200
@@ -108,7 +108,7 @@ AC_CHECK_HEADERS([sys/types.h stdlib.h s
 #########
 # Figure out whether or not we have these functions
 #
-AC_CHECK_FUNCS([fdatasync gmtime_r isnan localtime_r localtime_s malloc_usable_size strchrnul usleep utime pread pread64 pwrite pwrite64])
+AC_CHECK_FUNCS([fdatasync gmtime_r isnan localtime_r localtime_s strchrnul usleep utime pread pread64 pwrite pwrite64])
 
 #########
 # By default, we use the amalgamation (this may be changed below...)
diff -up sqlite-src-3120200/configure.malloc_usable_size sqlite-src-3120200/configure
--- sqlite-src-3120200/configure.malloc_usable_size	2016-04-25 09:47:12.594679063 +0200
+++ sqlite-src-3120200/configure	2016-04-25 09:49:28.684615042 +0200
@@ -10275,7 +10275,7 @@ done
 #########
 # Figure out whether or not we have these functions
 #
-for ac_func in fdatasync gmtime_r isnan localtime_r localtime_s malloc_usable_size strchrnul usleep utime pread pread64 pwrite pwrite64
+for ac_func in fdatasync gmtime_r isnan localtime_r localtime_s strchrnul usleep utime pread pread64 pwrite pwrite64
 do :
   as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
 ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"