# Created by migrate-autoconf - fix items marked XXX

use cc cc-shared cc-lib hwaci-common
set DUMP_DEFINES_FILE defines.list

########################################################################
# Note that boolean flags...
#
# 1) Are in the form flagname (default=false) or flagname=0 (false) or
# flagname=1 (true).
#
# 2) If they default to false, the actual flag mapped to them is
# --enable-FLAG.
#
# 3) If they default to true, the actual flag mapped to them is
# --disable-FLAG.
options {
  with-tclsh:PATHNAME  =>  {Full pathname of tclsh to use}
  with-tcl:DIR         =>  {Directory containing tclConfig.sh}
  disable-tcl=0        =>  {building accessory programs that require TCL-dev}
  enable-test-status=0 =>  {status of tests}
  with-wasi-sdk:=/opt/wasi-sdk  =>  {Path to the wasi-dsk}
  disable-threadsafe=0    =>  mutexing
  enable-releasemode=0   =>  {libtool link to release mode}
  enable-tempstore=0          =>  {an in-ram database for temporary tables never,no,yes,always}
  enable-editline=0    =>  {BSD editline support}
  disable-readline=0       =>  {readline support}
  with-readline-lib  =>  {readline library}
  with-readline-inc  =>  {readline include paths}
  with-linenoise:DIR   => {}
  disable-amalgamation=0   =>  {Disable the amalgamation and instead build all files separately}
  load-extension=1  =>  {loading of external extensions}
  math=1            =>  {math functions}
  json=1            =>  {JSON functions}
  all=0             =>  {Enable FTS4, FTS5, Geopoly, RTree, Sessions}
  enable-memsys5=0        =>  MEMSYS5
  enable-memsys3=0        =>  MEMSYS3
  enable-fts3=0           =>  {Enable the FTS3 extension}
  enable-fts4=0           =>  {Enable the FTS4 extension}
  enable-fts5=0           =>  {Enable the FTS5 extension}
  enable-update-limit=0   =>  {Enable the UPDATE/DELETE LIMIT clause}
  enable-geopoly=0        =>  {Enable the GEOPOLY extension}
  enable-rtree=0          =>  {Enable the RTREE extension}
  enable-session=0        =>  {Enable the SESSION extension}
  enable-gcov=0           =>  {Enable coverage testing using gcov}
  dump-defines=1         =>  {Dump autosetup defines to $DUMP_DEFINES_FILE}
}
#  debug=0          =>  {debugging & verbose explain}

set srcdir $autosetup(srcdir)
puts "srcdir = $srcdir"
set VERSION [readfile $srcdir/VERSION]
puts "VERSION = $VERSION"
puts "with-wasi-sdk? = [opt-val with-wasi-sdk]"

#
# The build process allows for using a cross-compiler.  But the default
# action is to target the same platform that we are running on.  The
# configure script needs to discover the following properties of the
# build and target systems:
#
#    srcdir
#
#        The is the name of the directory that contains the
#        "configure" shell script.  All source files are
#        located relative to this directory.
#
#    bindir
#
#        The name of the directory where executables should be
#        written by the "install" target of the makefile.
#
#    program_prefix
#
#        Add this prefix to the names of all executables that run
#        on the target machine.  Default: ""
#
#    ENABLE_SHARED
#
#        True if shared libraries should be generated.
#
#    BUILD_CC
#
#        The name of a command that is used to convert C
#        source files into executables that run on the build
#        platform.
#
#    BUILD_CFLAGS
#
#        Switches that the build compiler needs in order to construct
#        command-line programs.
#
#    BUILD_LIBS
#
#        Libraries that the build compiler needs in order to construct
#        command-line programs.
#
#    TCL_*
#
#        Lots of values are read in from the tclConfig.sh script,
#        if that script is available.  This values are used for
#        constructing and installing the TCL extension.
#
#    TARGET_READLINE_LIBS
#
#        This is the library directives passed to the target linker
#        that cause the executable to link against the readline library.
#        This might be a switch like "-lreadline" or pathnames of library
#        file like "../../src/libreadline.a".
#
#    TARGET_READLINE_INC
#
#        This variables define the directory that contain header
#        files for the readline library.  If the compiler is able
#        to find <readline.h> on its own, then this can be blank.

hwaci-check-exeext

########################################################################
# OPT_FEATURE_FLAGS = -DSQLITE_OMIT/ENABLE flags.
define OPT_FEATURE_FLAGS {}
proc add-feature-flag {flag} {
  define-append OPT_FEATURE_FLAGS $flag
}
# add-feature-flag -DSQLITE_JUST_TESTING=3

#########
# Programs needed
if {1} {
  if {"" eq [hwaci-bin-define install]} {
    msg-result "Cannot find install binary, so 'make install' will not work."
  }
}

#########
# Enable large file support (if special flags are necessary)
if {1} {
  cc-check-lfs
}

#########
# Check for needed/wanted data types
if {1} {
  cc-check-types int8_t int16_t int32_t int64_t intptr_t \
    uint8_t uint16_t uint32_t uint64_t uintptr_t
}

#########
# Check for needed/wanted headers
if {1} {
  cc-check-includes sys/types.h stdlib.h stdint.h inttypes.h malloc.h
}

#########
# Figure out whether or not we have these functions
if {1} {
  cc-check-functions fdatasync gmtime_r isnan localtime_r localtime_s \
    malloc_usable_size strchrnul usleep utime pread pread64 pwrite pwrite64
}


##########
# Handle --with-wasi-sdk=DIR
#
# This must be early because it changes the toolchain.
#
# It's unclear whether we can actually get away with these changes in
# autosetup.
if {1} {
  set wasiSdkDir [lindex [opt-val with-wasi-sdk] end]
  if {$wasiSdkDir eq ""} {
    define HAVE_WASI_SDK 0
    define WASI_SDK_DIR ""
  } else {
    msg-checking "Checking WASI SDK directory \[$wasiSdkDir]... "
    if {![file exists $wasiSdkDir/bin/clang]} {
      user-error "--with-wasi-sdk=${wasiSdkDir} directory does not contain bin/clang"
    }
    msg-result "using wasi-sdk clang, disabling: tcl, CLI shell, DLL"
    define HAVE_WASI_SDK 1
    define WASI_SDK_DIR $wasiSdkDir

    # Changing --host and --target have no effect here except to possibly
    # cause confusion. autoconf has finished processing them by this
    # point.
    #
    #  host_alias=wasm32-wasi
    #  target=wasm32-wasi
    #
    # Merely changing CC and LD to the wasi-sdk's is enough to get
    # sqlite3.o building in WASM format.
    # XXX CC="${with_wasi_sdk}/bin/clang"
    # XXX LD="${with_wasi_sdk}/bin/wasm-ld"
    # XXX RANLIB="${with_wasi_sdk}/bin/llvm-ranlib"
    #  set cross_compiling yes
    #  set enable_threadsafe no
    #  set use_tcl no
    #  set enable_tcl no
    # libtool is apparently hard-coded to use gcc for linking DLLs, so
    # we disable the DLL build...
    #  set enable_shared no
  }
}; # --wasi-sdk-dir

#########
# By default, we use the amalgamation (this may be changed below...)
#
# XXX USE_AMALGAMATION=1

if {0} {
  #########
  # Figure out all the name of a working tclsh and parameters needed to compile against Tcl.
  # The --with-tcl= and/or --with-tclsh= configuration arguments might be useful for this.
  #
  # XXX AC_ARG_WITH tclsh AS_HELP_STRING([--with-tclsh=PATHNAME],[full pathname of a tclsh to use])
  # XXX AC_ARG_WITH tcl AS_HELP_STRING([--with-tcl=DIR],[directory containing (tclConfig.sh)])
  # if {![opt-bool tcl]} {
  #   set use_tcl $enableval
  # } else {
  #   set use_tcl yes
  # }
  #set original_use_tcl ${use_tcl}
  # XXX if test x"${with_tclsh}" == x -a x"${with_tcl}" == x; then
  # XXX AC_CHECK_PROGS TCLSH_CMD tclsh8.6 tclsh tclsh9.0 none
  #set with_tclsh ${TCLSH_CMD}
  # XXX fi
  # XXX if test x"${with_tclsh}" != x -a x"${with_tclsh}" != xnone; then
  # XXX TCLSH_CMD=${with_tclsh}
  #msg-result "using tclsh at \"$TCLSH_CMD\""
  # XXX if test x"${use_tcl}" = "xyes"; then
  #set with_tcl `${with_tclsh} <${srcdir}/tool/find_tclconfig.tcl`
  # XXX if test x"${with_tcl}" != x; then
  #msg-result "$TCLSH_CMD recommends the tclConfig.sh at ${with_tcl}"
  # XXX else
  #msg-result Warning: "$TCLSH_CMD is unable to recommend a tclConfig.sh"
  #set use_tcl no
  # XXX fi
  # XXX fi
  # XXX fi
  # XXX if test x"${use_tcl}" = "xyes"; then
  # XXX if test x"${with_tcl}" != x; then
  # XXX if test -r ${with_tcl}/tclConfig.sh; then
  # set tclconfig "${with_tcl}/tclConfig.sh"
  # XXX else
  # XXX for i in tcl8.6 tcl9.0 lib; do
  # XXX if test -r ${with_tcl}/$i/tclConfig.sh; then
  #set tclconfig ${with_tcl}/$i/tclConfig.sh
  # XXX break
  # XXX fi
  # XXX done
  # XXX fi
  # XXX if test ! -r "${tclconfig}"; then
  #user-error "no tclConfig.sh file found under ${with_tcl}"
  # XXX fi
  # XXX else
  # If we have not yet found a tclConfig.sh file, look in $libdir whic is
  # set automatically by autoconf or by the --prefix command-line option.
  # See https://sqlite.org/forum/forumpost/e04e693439a22457
  #set libdir ${prefix}/lib
  # XXX if test -r ${libdir}/tclConfig.sh; then
  #set tclconfig ${libdir}/tclConfig.sh
  # XXX else
  # XXX for i in tcl8.6 tcl9.0 lib; do
  # XXX if test -r ${libdir}/$i/tclConfig.sh; then
  #set tclconfig ${libdir}/$i/tclConfig.sh
  # XXX break
  # XXX fi
  # XXX done
  # XXX fi
  # XXX if test ! -r "${tclconfig}"; then
  #user-error "cannot find a usable tclConfig.sh file.
  #        Use --with-tcl=DIR to specify a directory where tclConfig.sh can be found.
  #        SQLite does not use TCL internally, but TCL is required to build SQLite
  #        from canonical sources and TCL is required for testing."
  # XXX fi
  # XXX fi
  # msg-result "loading TCL configuration from ${tclconfig}"
  # XXX . ${tclconfig}
  # XXX autosetup automatically substitutes all define'd values
  #     In general, simply 'define' the value rather than using a shell
  #     variable and AC_SUBST.
  #
  # XXX AC_SUBST TCL_INCLUDE_SPEC
  # XXX AC_SUBST TCL_LIB_SPEC
  # XXX AC_SUBST TCL_STUB_LIB_SPEC
  # There are lots of other configuration variables that are provided by the
  # tclConfig.sh file and that could be included here.  But as of right now,
  # TCL_LIB_SPEC is the only what that the Makefile uses.
  # XXX HAVE_TCL=1
  # XXX elif test x"${original_use_tcl}" = "xno"; then
  # msg-result "unable to run tests because of --disable-tcl"
  # XXX HAVE_TCL=0
  # XXX else
  # msg-result "unable to run tests because no tclConfig.sh file could be located"
  # XXX HAVE_TCL=0
  # XXX fi
  # XXX AC_SUBST HAVE_TCL
  # XXX if test x"$TCLSH_CMD" == x; then
  # XXX TCLSH_CMD=${TCL_EXEC_PREFIX}/bin/tclsh${TCL_VERSION}
  # XXX if test ! -x ${TCLSH_CMD}; then
  # set _2 ${TCL_EXEC_PREFIX}/bin/tclsh
  # XXX if test ! -x ${TCLSH_CMD_2}; then
  # msg-result Warning: "cannot find a usable tclsh at either ${TCLSH_CMD} or ${TCLSH_CMD_2}"
  # XXX TCLSH_CMD=none
  # XXX else
  # XXX TCLSH_CMD=${TCLSH_CMD_2}
  # XXX fi
  # XXX fi
  # XXX fi
  # XXX if test "$TCLSH_CMD" = "none"; then
  # If we can't find a local tclsh, then building the amalgamation will fail.
  # We act as though --disable-amalgamation has been used.
  # msg-result Warning: "Warning: can't find tclsh - defaulting to non-amalgamation build."
  # XXX USE_AMALGAMATION=0
  # XXX TCLSH_CMD="tclsh"
  # XXX fi
  # XXX AC_SUBST TCLSH_CMD

  # XXX AC_ARG_VAR TCLLIBDIR Where to install tcl plugin
  # XXX if test "x${TCLLIBDIR+set}" != "xset" ; then
  # XXX for i in `echo 'puts stdout $auto_path' | ${TCLSH_CMD}` ; do
  # XXX if test -d $i ; then
  # XXX TCLLIBDIR=$i
  # XXX break
  # XXX fi
  # XXX done
  # XXX TCLLIBDIR="${TCLLIBDIR}/sqlite3"
  # XXX fi
}

if {0} {
  #########
  # Set up options for running tests.
  #
  if {[opt-bool test-status]} {
    define TSTRNNR_OPTS {--status}
  } else {
    define TSTRNNR_OPTS {}
  }
  # XXX if test $use_vt100 != no; then
  # XXX TSTRNNR_OPTS=--status
  # XXX else
  # XXX TSTRNNR_OPTS=
  # XXX fi
  # XXX AC_SUBST TSTRNNR_OPTS
}

#########
# Locate a compiler for the build machine.  This compiler should
# generate command-line programs that run on the build machine.
#
# XXX if test x"$cross_compiling" = xno; then
# XXX BUILD_CC=$CC
# XXX BUILD_CFLAGS=$CFLAGS
# XXX else
# XXX if test "${BUILD_CC+set}" != set; then
# XXX AC_CHECK_PROGS BUILD_CC gcc cc cl
# XXX fi
# XXX if test "${BUILD_CFLAGS+set}" != set; then
# XXX BUILD_CFLAGS="-g"
# XXX fi
# XXX fi
# XXX AC_SUBST BUILD_CC

##########
# Do we want to support multithreaded use of sqlite
#
if {0} {
  if {![opt-bool threadsafe]} {
  }
  msg-checking "Checking whether to support threadsafe operation..."
  # XXX if test "$enable_threadsafe" = "no"; then
  # XXX SQLITE_THREADSAFE=0
  msg-result "no"
  # XXX else
  # XXX SQLITE_THREADSAFE=1
  msg-result "yes"
  # XXX fi
  # XXX AC_SUBST SQLITE_THREADSAFE

  # XXX if test "$SQLITE_THREADSAFE" = "1"; then
  cc-check-function-in-lib pthread_create pthread
  cc-check-function-in-lib pthread_mutexattr_init pthread
  # XXX fi
}

##########
# Do we want to support release
#
if {[opt-bool enable-releasemode]} {
  set enable_releasemode 1
} else {
  set enable_releasemode 0
}

if {0} {
  msg-checking "Checking whether to support shared library linked as release mode or not..."
  # XXX if test "$enable_releasemode" = "no"; then
  # XXX ALLOWRELEASE=""
  msg-result "no"
  # XXX else
  # XXX ALLOWRELEASE="-release `cat $srcdir/VERSION`"
  msg-result "yes"
  # XXX fi
  # XXX AC_SUBST ALLOWRELEASE
}

##########
# Do we want temporary databases in memory
#
if {0} {
  if {[opt-bool tempstore]} {
  } else {
    set enable_tempstore no
  }
  msg-checking "Checking whether to use an in-ram database for temporary tables..."
  # XXX case "$enable_tempstore" in
  # XXX never )
  # XXX TEMP_STORE=0
  msg-result "never"
  # XXX ;;
  # XXX no )
  # XXX TEMP_STORE=1
  msg-result "no"
  # XXX ;;
  # XXX yes )
  # XXX TEMP_STORE=2
  msg-result "yes"
  # XXX ;;
  # XXX always )
  # XXX TEMP_STORE=3
  msg-result "always"
  # XXX ;;
  # XXX * )
  # XXX TEMP_STORE=1
  msg-result "no"
  # XXX ;;
  # XXX esac

  # XXX AC_SUBST TEMP_STORE
}

if {0} {
  ###########
  # Lots of things are different if we are compiling for Windows using
  # the CYGWIN environment.  So check for that special case and handle
  # things accordingly.
  #
  msg-checking "Checking if executables have the .exe suffix..."
  # XXX if test "$config_BUILD_EXEEXT" = ".exe"; then
  # XXX CYGWIN=yes
  msg-result "yes"
  # XXX else
  msg-result "unknown"
  # XXX fi
  # XXX if test "$CYGWIN" != "yes"; then
  # XXX m4_warn([obsolete],
  # XXX [AC_CYGWIN is obsolete: use AC_CANONICAL_HOST and check if $host_os
  # XXX matches *cygwin*])
  # XXX case $host_os in
  # XXX *cygwin* ) CYGWIN=yes;;
  # XXX * ) CYGWIN=no;;
  # XXX esac

  # XXX fi
  # XXX if test "$CYGWIN" = "yes"; then
  # XXX BUILD_EXEEXT=.exe
  # XXX else
  # XXX BUILD_EXEEXT=$EXEEXT
  # XXX fi
  # XXX if test x"$cross_compiling" = xno; then
  # XXX TARGET_EXEEXT=$BUILD_EXEEXT
  # XXX else
  # XXX TARGET_EXEEXT=$config_TARGET_EXEEXT
  # XXX fi
  # XXX if test "$TARGET_EXEEXT" = ".exe"; then
  # XXX SQLITE_OS_UNIX=0
  # XXX SQLITE_OS_WIN=1
  # XXX CFLAGS="$CFLAGS -DSQLITE_OS_WIN=1"
  # XXX else
  # XXX SQLITE_OS_UNIX=1
  # XXX SQLITE_OS_WIN=0
  # XXX CFLAGS="$CFLAGS -DSQLITE_OS_UNIX=1"
  # XXX fi

  # XXX AC_SUBST BUILD_EXEEXT
  # XXX AC_SUBST SQLITE_OS_UNIX
  # XXX AC_SUBST SQLITE_OS_WIN
  # XXX AC_SUBST TARGET_EXEEXT
}

if {0} {
  ##########
  # Figure out what C libraries are required to compile programs
  # that use "readline()" library.
  #
  # XXX TARGET_READLINE_LIBS=""
  # XXX TARGET_READLINE_INC=""
  # XXX TARGET_HAVE_READLINE=0
  # XXX TARGET_HAVE_EDITLINE=0
  if {[opt-bool editline]} {
    set with_editline $enableval
  } else {
    set with_editline auto
  }
  if {![opt-bool readline]} {
    set with_readline $enableval
  } else {
    set with_readline auto
  }

  # XXX if test x"$with_editline" != xno; then
  # XXX sLIBS=$LIBS
  # XXX LIBS=""
  # XXX TARGET_HAVE_EDITLINE=1
  if {[cc-check-function-in-lib readline edit]} {
    set with_readline no
  } else {
    # XXX TARGET_HAVE_EDITLINE=0
  }
  # XXX TARGET_READLINE_LIBS=$LIBS
  # XXX LIBS=$sLIBS
  # XXX fi
  # XXX if test x"$with_readline" != xno; then
  set found "yes"

  if {[opt-val with-readline-lib] ne {}} {
    set withval [lindex [opt-val with-readline-lib] end]
    set with_readline_lib $withval
  } else {
    set with_readline_lib "auto"
  }
  # XXX if test "x$with_readline_lib" = xauto; then
  # XXX save_LIBS="$LIBS"
  # XXX LIBS=""
  if {[cc-check-function-in-lib tgetent readline ncurses curses termcap]} {
    # XXX term_LIBS="$LIBS"
  } else {
    # XXX term_LIBS=""
  }
  if {[cc-check-function-in-lib readline readline]} {
    # XXX TARGET_READLINE_LIBS="-lreadline"
  } else {
    set found "no"
  }
  # XXX TARGET_READLINE_LIBS="$TARGET_READLINE_LIBS $term_LIBS"
  # XXX LIBS="$save_LIBS"
  # XXX else
  # XXX TARGET_READLINE_LIBS="$with_readline_lib"
  # XXX fi

  if {[opt-val with-readline-inc] ne {}} {
    set withval [lindex [opt-val with-readline-inc] end]
    set with_readline_inc $withval
  } else {
    set with_readline_inc "auto"
  }
  # XXX if test "x$with_readline_inc" = xauto; then
  if {[cc-check-includes readline.h]} {
    set found "yes"
  } else {
    set found "no"
    # XXX if test "$cross_compiling" != yes; then
    # XXX for dir in /usr /usr/local /usr/local/readline /usr/contrib /mingw; do
    # XXX for subdir in include include/readline; do
    # XXX AC_CHECK_FILE $dir/$subdir/readline.h found=yes
    # XXX if test "$found" = "yes"; then
    # XXX TARGET_READLINE_INC="-I$dir/$subdir"
    # XXX break
    # XXX fi
    # XXX done
    # XXX test "$found" = "yes" && break
    # XXX done
    # XXX fi
  }
  # XXX else
  # XXX TARGET_READLINE_INC="$with_readline_inc"
  # XXX fi

  # XXX if test x"$found" = xno; then
  # XXX TARGET_READLINE_LIBS=""
  # XXX TARGET_READLINE_INC=""
  # XXX TARGET_HAVE_READLINE=0
  # XXX else
  # XXX TARGET_HAVE_READLINE=1
  # XXX fi
  # XXX fi
  if {[opt-val with-linenoise] ne {}} {
    set withval [lindex [opt-val with-linenoise] end]
    set with_linenoise $withval
  } else {
    set with_linenoise "no"
  }
  # XXX if test "x$with_linenoise" != "xno"; then
  # XXX TARGET_HAVE_READLINE=0
  # XXX TARGET_HAVE_EDITLINE=0
  # XXX TARGET_HAVE_LINENOISE=1
  # XXX TARGET_READLINE_INC="-I${with_linenoise}"
  # XXX TARGET_READLINE_LIBS="${with_linenoise}/linenoise.c"
  # XXX echo "using linenoise source code at ${with_linenoise}"
  # XXX else
  # XXX TARGET_HAVE_LINENOISE=0
  # XXX echo "not using linenoise"
  # XXX fi

  # XXX AC_SUBST TARGET_READLINE_LIBS
  # XXX AC_SUBST TARGET_READLINE_INC
  # XXX AC_SUBST TARGET_HAVE_READLINE
  # XXX AC_SUBST TARGET_HAVE_EDITLINE
  # XXX AC_SUBST TARGET_HAVE_LINENOISE
}

if {0} {
  ##########
  # Figure out what C libraries are required to compile programs
  # that use "fdatasync()" function.
  #
  cc-check-function-in-lib fdatasync rt
}

if {0} {
  #########
  # check for debug enabled
  if {[opt-bool debug]} {
  }
  msg-checking "Checking build type..."
  # XXX if test "${enable_debug}" = "yes" ; then
  # XXX TARGET_DEBUG="-DSQLITE_DEBUG=1 -DSQLITE_ENABLE_SELECTTRACE -DSQLITE_ENABLE_WHERETRACE -O0 -Wall"
  msg-result "debug"
  # XXX else
  # XXX TARGET_DEBUG="-DNDEBUG"
  msg-result "release"
  # XXX fi
  # XXX AC_SUBST TARGET_DEBUG
}

if {0} {
  #########
  # See whether we should use the amalgamation to build

  if {![opt-bool amalgamation]} {
  }
  # XXX if test "${enable_amalgamation}" = "no" ; then
  # XXX USE_AMALGAMATION=0
  # XXX fi
  # XXX AC_SUBST USE_AMALGAMATION
}

if {0} {
  #########
  # Look for zlib.  Only needed by extensions and by the sqlite3.exe shell
  cc-check-includes zlib.h
  if {[cc-check-function-in-lib deflate z]} {
    define HAVE_ZLIB 1; # "-DSQLITE_HAVE_ZLIB=1"
  } else {
    define HAVE_ZLIB 0; # HAVE_ZLIB=""
  }
  # XXX AC_SUBST HAVE_ZLIB
}

proc if-disabled {boolFlag then {else {}}} {
  if {![opt-bool $boolFlag]} {
    eval $then
  } else {
    eval $else
  }
}

proc if-enabled {boolFlag then {else {}}} {
  if {[opt-bool $boolFlag]} {
    eval $then
  } else {
    eval $else
  }
}

if-enabled load-extension {
  if {[cc-check-function-in-lib dlopen dl]} {
    define LDFLAGS_DLOPEN [get-define lib_dlopen]
  } else {
    user-error "dlopen() not found. Use --disable-load-extension to bypass this check."
  }
} {
  define LDFLAGS_DLOPEN ""
  add-feature-flag {-DSQLITE_OMIT_LOAD_EXTENSION=1}
  msg-result "Disabling loadable extensions."
}

if-enabled math {
  if {![cc-check-function-in-lib ceil m]} {
    user-error "Cannot find libm functions. Use --disable-math to bypass this."
  }
  define LDFLAGS_MATH [get-define lib_ceil]
  undefine lib_ceil
  add-feature-flag {-DSQLITE_ENABLE_MATH_FUNCTIONS}
  msg-result "Enabling math functions."
} {
  define LDFLAGS_MATH ""
  msg-result "Disabling math functions."
}

if-enabled json {
  msg-result "Enabling JSON SQL functions."
} {
  add-feature-flag {-DSQLITE_OMIT_JSON}
  msg-result "Disabling JSON SQL functions."
}

if-enabled all {
  msg-result "TODO: handle --enable-all"
}

if {0} {
  ##########
  # Do we want to support memsys3 and/or memsys5
  #
  if {[opt-bool memsys5]} {
  }
  msg-checking "Checking whether to support MEMSYS5..."
  # XXX if test "${enable_memsys5}" = "yes"; then
  # XXX OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_MEMSYS5"
  msg-result "yes"
  # XXX else
  msg-result "no"
  # XXX fi
  if {[opt-bool memsys3]} {
  }
  msg-checking "Checking whether to support MEMSYS3..."
  # XXX if test "${enable_memsys3}" = "yes" -a "${enable_memsys5}" = "no"; then
  # XXX OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_MEMSYS3"
  msg-result "yes"
  # XXX else
  msg-result "no"
  # XXX fi
}

if {0} {
  #########
  # See whether we should enable Full Text Search extensions
  if {[opt-bool fts3]} {
  }
  msg-checking "Checking whether to support FTS3..."
  # XXX if test "${enable_fts3}" = "yes" ; then
  # XXX OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS3"
  msg-result "yes"
  # XXX else
  msg-result "no"
  # XXX fi
  if {[opt-bool fts4]} {
  }
  msg-checking "Checking whether to support FTS4..."
  # XXX if test "${enable_fts4}" = "yes" -o "${enable_all}" = "yes" ; then
  msg-result "yes"
  # XXX OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS4"
  cc-check-function-in-lib log m
  # XXX else
  msg-result "no"
  # XXX fi
  if {[opt-bool fts5]} {
  }
  msg-checking "Checking whether to support FTS5..."
  # XXX if test "${enable_fts5}" = "yes" -o "${enable_all}" = "yes" ; then
  msg-result "yes"
  # XXX OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS5"
  cc-check-function-in-lib log m
  # XXX else
  msg-result "no"
  # XXX fi
}


if {0} {
  #########
  # See whether we should enable the LIMIT clause on UPDATE and DELETE
  # statements.
  if {[opt-bool update-limit]} {
  }
  msg-checking "Checking whether to support LIMIT on UPDATE and DELETE statements..."
  # XXX if test "${enable_update_limit}" = "yes" ; then
  # XXX OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_UPDATE_DELETE_LIMIT"
  msg-result "yes"
  # XXX else
  msg-result "no"
  # XXX fi
}

if {0} {
  #########
  # See whether we should enable GEOPOLY
  if {[opt-bool geopoly]} {
    set enable_geopoly yes
  } else {
    set enable_geopoly no
  }
  msg-checking "Checking whether to support GEOPOLY..."
  # XXX if test "${enable_geopoly}" = "yes" -o "${enable_all}" = "yes" ; then
  # XXX OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_GEOPOLY"
  set enable_rtree yes
  msg-result "yes"
  # XXX else
  msg-result "no"
  # XXX fi
}

if {0} {
  #########
  # See whether we should enable RTREE
  if {[opt-bool rtree]} {
  }
  msg-checking "Checking whether to support RTREE..."
  # XXX if test "${enable_rtree}" = "yes" ; then
  # XXX OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_RTREE"
  msg-result "yes"
  # XXX else
  msg-result "no"
  # XXX fi
}

if {0} {
  #########
  # See whether we should enable the SESSION extension
  if {[opt-bool session]} {
  }
  msg-checking "Checking whether to support SESSION..."
  # XXX if test "${enable_session}" = "yes" -o "${enable_all}" = "yes" ; then
  # XXX OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_SESSION"
  # XXX OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_PREUPDATE_HOOK"
  msg-result "yes"
  # XXX else
  msg-result "no"
  # XXX fi
}

#########
# attempt to duplicate any OMITS and ENABLES into the ${OPT_FEATURE_FLAGS} parameter
# XXX for option in $CFLAGS $CPPFLAGS
# XXX do
# XXX case $option in
# XXX -DSQLITE_OMIT*) OPT_FEATURE_FLAGS="$OPT_FEATURE_FLAGS $option";;
# XXX -DSQLITE_ENABLE*) OPT_FEATURE_FLAGS="$OPT_FEATURE_FLAGS $option";;
# XXX esac
# XXX done
# XXX AC_SUBST OPT_FEATURE_FLAGS


# attempt to remove any OMITS and ENABLES from the $(CFLAGS) parameter
# XXX ac_temp_CFLAGS=""
# XXX for option in $CFLAGS
# XXX do
# XXX case $option in
# XXX -DSQLITE_OMIT*) ;;
# XXX -DSQLITE_ENABLE*) ;;
# XXX *) ac_temp_CFLAGS="$ac_temp_CFLAGS $option";;
# XXX esac
# XXX done
# XXX CFLAGS=$ac_temp_CFLAGS


# attempt to remove any OMITS and ENABLES from the $(CPPFLAGS) parameter
# XXX ac_temp_CPPFLAGS=""
# XXX for option in $CPPFLAGS
# XXX do
# XXX case $option in
# XXX -DSQLITE_OMIT*) ;;
# XXX -DSQLITE_ENABLE*) ;;
# XXX *) ac_temp_CPPFLAGS="$ac_temp_CPPFLAGS $option";;
# XXX esac
# XXX done
# XXX CPPFLAGS=$ac_temp_CPPFLAGS


# attempt to remove any OMITS and ENABLES from the $(BUILD_CFLAGS) parameter
# XXX ac_temp_BUILD_CFLAGS=""
# XXX for option in $BUILD_CFLAGS
# XXX do
# XXX case $option in
# XXX -DSQLITE_OMIT*) ;;
# XXX -DSQLITE_ENABLE*) ;;
# XXX *) ac_temp_BUILD_CFLAGS="$ac_temp_BUILD_CFLAGS $option";;
# XXX esac
# XXX done
# XXX BUILD_CFLAGS=$ac_temp_BUILD_CFLAGS


if {0} {
  #########
  # See whether we should use GCOV
  if {[opt-bool gcov]} {
  }
  # XXX if test "${use_gcov}" = "yes" ; then
  # XXX USE_GCOV=1
  # XXX else
  # XXX USE_GCOV=0
  # XXX fi
  # XXX AC_SUBST USE_GCOV
}

if {0} {
  #########
  # Enable/disabled amalagamation line macros
  ########
  set linemacros 0
  # XXX if test "${amalgamation_line_macros}" = "yes" ; then
  set linemacros 1
  # XXX fi
  # XXX if test "${amalgamation_line_macros}" = "no" ; then
  set linemacros 0
  # XXX fi
  # XXX AC_SUBST AMALGAMATION_LINE_MACROS
}

#########
# Output the config header

if {0} {
  #########
  # Generate the output files.
  #
  # XXX AC_SUBST BUILD_CFLAGS
  make-template Makefile.in
  make-template sqlite3.pc.in
  make-config-header sqlite_cfg.h
}

if {[opt-bool dump-defines]} {
    msg-result "--dump-defines is creating file: $DUMP_DEFINES_FILE"
    make-config-header $DUMP_DEFINES_FILE -bare OPT_FEATURE_FLAGS -auto {*}
}