} else {
        msg-result "no"
    }
    return $found
}

if {![opt-bool internal-sqlite]} {
  proc find_system_sqlite {} {

    # On some systems (slackware), libsqlite3 requires -ldl to link. So
    # search for the system SQLite once with -ldl, and once without. If
    # the library can only be found with $extralibs set to -ldl, then
    # the code below will append -ldl to LIBS.
    #
    foreach extralibs {{} {-ldl}} {

      # Locate the system SQLite by searching for sqlite3_open(). Then check
      # if sqlite3_stmt_isexplain can be found as well. If we can find open() but
      # 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
      }
    }
    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 $::autosetup(dir)/../src/sqlcompattest.c -o conftest__
    lappend cmdline {*}[get-define LIBS]
    set ok 1
    set err [catch {exec-with-stderr {*}$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
    
}

proc is_mingw {} {
    return [string match *mingw* [get-define host]]
}

if {[is_mingw]} {

/*
** Copyright (c) 2019 D. Richard Hipp
**
** This program is free software; you can redistribute it and/or
** modify it under the terms of the Simplified BSD License (also
** known as the "2-Clause License" or "FreeBSD License".)
**
** This program is distributed in the hope that it will be useful,
** but without any warranty; without even the implied warranty of
** merchantability or fitness for a particular purpose.
**
** Author contact information:
**   drh@hwaci.com
**   http://www.hwaci.com/drh/
**
*******************************************************************************
**
** This file is NOT part of the Fossil executable
**
** This file contains a test program used by ../configure with the
** the --disable-internal-sqlite option to determine whether or
** not the system SQLite library is sufficient to support Fossil.
**
** It is preferred to statically link Fossil with the sqlite3.c source
** file that is part of the source tree and not use any SQLite shared
** library that is included with the system.  But some packagers do not
** like to do this.  Hence, we provide the option to link Fossil against
** the system SQLite shared library.  But Fossil is very particular about
** the version and build options for SQLite.  Unless a recent version of
** SQLite is available, and unless that SQLite is built using some
** non-default features, the system library won't meet the needs of
** Fossil.  This program attempts to determine if the system library
** SQLite is sufficient for Fossil.
**
** Compile this program, linking it against the system SQLite library,
** and run it.  If it returns with a zero exit code, then all is well.
** But if it returns a non-zero exit code, then the system SQLite library
** lacks some capability that Fossil uses.  A message on stdout describes
** the missing feature.
*/
#include "sqlite3.h"
#include <stdio.h>

int main(int argc, char **argv){
  int i;
  static const char *zRequiredOpts[] = {
    "ENABLE_FTS4",         /* Required for repository search */
    "ENABLE_JSON1",        /* Required for the check-in locking protocol */
    "ENABLE_DBSTAT_VTAB",  /* Required by the "fossil sql" command */
    "ENABLE_STMTVTAB",     /* Required by the "fossil sql" command */
  };

  /* Check minimum SQLite version number */
  if( sqlite3_libversion_number()<3028000 ){
    printf("found SQLite version %s but need 3.28.0 or later\n",
            sqlite3_libversion());
    return 1;
  }

  for(i=0; i<sizeof(zRequiredOpts)/sizeof(zRequiredOpts[0]); i++){
    if( !sqlite3_compileoption_used(zRequiredOpts[i]) ){
      printf("system SQLite library omits required build option -DSQLITE_%s\n",
             zRequiredOpts[i]);
      return 1;
    }
  }

  /* Success! */
  return 0;
}