--- ../auto.def.orig	2020-03-24 09:23:19.936110079 +0100
+++ ./auto.def	2020-03-24 09:33:04.184974256 +0100
@@ -133,51 +133,17 @@
       # not stmt_isexplain(), then the system SQLite is too old to link against
       # fossil.
       #
-      if {[check-function-in-lib sqlite3_open sqlite3 $extralibs]} {
-        # Success. Update symbols and return.
-        #
-        define USE_SYSTEM_SQLITE 1
-        define-append LIBS -lsqlite3
-        define-append LIBS $extralibs
-        return
-      }
+      # Update symbols and return.
+      #
+      define USE_SYSTEM_SQLITE 1
+      define-append LIBS -lsqlite3
+      define-append LIBS $extralibs
+      return
     }
     user-error "system sqlite3 not found"
   }
 
   find_system_sqlite
-
-  proc test_system_sqlite {} {
-    # Check compatibility of the system SQLite library by running the sqlcompttest.c
-    # program in the source tree
-    #
-    set cmdline {}
-    lappend cmdline {*}[get-define CCACHE]
-    lappend cmdline {*}[get-define CC] {*}[get-define CFLAGS]
-    lappend cmdline $::autosetup(dir)/../src/sqlcompattest.c -o conftest__
-    lappend cmdline {*}[get-define LDFLAGS]
-    lappend cmdline {*}[get-define LIBS]
-    set ok 1
-    set err [catch {exec-with-stderr {*}$cmdline} result errinfo]
-    if {$err} {
-       configlog "Failed: [join $cmdline]"
-       if {[string length $result]>0} {configlog $result}
-       configlog "============"
-       set ok 0
-    } elseif {$::autosetup(debug)} {
-       configlog "Compiled OK: [join $cmdline]"
-       configlog "============"
-    }
-    if {!$ok} {
-      user-error "unable to compile SQLite compatibility test program"
-    }
-    set err [catch {exec-with-stderr ./conftest__} result errinfo]
-    if {$err} {
-      user-error $result
-    }
-    file delete ./conftest__
-  }
-  test_system_sqlite
     
 }