Index: src/main.c
==================================================================
--- src/main.c
+++ src/main.c
@@ -2099,12 +2099,12 @@
 # error SQLITE_MAX_VDBE_OP must be at least 40
 #endif
 #if SQLITE_MAX_FUNCTION_ARG<0 || SQLITE_MAX_FUNCTION_ARG>1000
 # error SQLITE_MAX_FUNCTION_ARG must be between 0 and 1000
 #endif
-#if SQLITE_MAX_ATTACHED<0
-# error SQLITE_MAX_ATTACHED must be greater than 0
+#if SQLITE_MAX_ATTACHED<0 || SQLITE_MAX_ATTACHED>127
+# error SQLITE_MAX_ATTACHED must be between 0 and 127
 #endif
 #if SQLITE_MAX_LIKE_PATTERN_LENGTH<1
 # error SQLITE_MAX_LIKE_PATTERN_LENGTH must be at least 1
 #endif
 #if SQLITE_MAX_COLUMN>32767