Get `gn gen` to succeed on Windows

third_party/sqlite/src/configure.ac

+#
+# 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.
+#
+#    BUILD_EXEEXT
+#
+#        The filename extension for executables on the build
+#        platform.  "" for Unix and ".exe" for Windows.
+#
+#    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.
+#
+#    TARGET_EXEEXT
+#
+#        The filename extension for executables on the
+#        target platform.  "" for Unix and ".exe" for windows.
+#
+# The generated configure script will make an attempt to guess
+# at all of the above parameters.  You can override any of
+# the guesses by setting the environment variable named
+# "config_AAAA" where "AAAA" is the name of the parameter
+# described above.  (Exception: srcdir cannot be set this way.)
+# If you have a file that sets one or more of these environment
+# variables, you can invoke configure as follows:
+#
+#           configure --with-hints=FILE
+#
+# where FILE is the name of the file that sets the environment
+# variables.  FILE should be an absolute pathname.
+#
+# This configure.in file is easy to reuse on other projects.  Just
+# change the argument to AC_INIT().  And disable any features that
+# you don't need (for example BLT) by erasing or commenting out
+# the corresponding code.
+#
+AC_INIT(sqlite, m4_esyscmd([cat VERSION | tr -d '\n']))
+
+dnl Make sure the local VERSION file matches this configure script
+sqlite_version_sanity_check=`cat $srcdir/VERSION | tr -d '\n'`
+if test "$PACKAGE_VERSION" != "$sqlite_version_sanity_check" ; then
+AC_MSG_ERROR([configure script is out of date:
+ configure \$PACKAGE_VERSION = $PACKAGE_VERSION
+ top level VERSION file     = $sqlite_version_sanity_check
+please regen with autoconf])
+fi
+
+dnl Put the RCS revision string after AC_INIT so that it will also
+dnl show in in configure.
+# The following RCS revision string applies to configure.in
+# $Revision: 1.56 $
+
+#########
+# Programs needed
+#
+AC_PROG_LIBTOOL
+AC_PROG_INSTALL
+AC_PROG_AWK
+
+#########
+# Enable large file support (if special flags are necessary)
+#
+AC_SYS_LARGEFILE
+
+#########
+# Check for needed/wanted data types
+AC_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
+AC_CHECK_HEADERS([sys/types.h stdlib.h stdint.h inttypes.h])
+
+#########
+# Figure out whether or not we have these functions
+#
+AC_CHECK_FUNCS([usleep fdatasync localtime_r gmtime_r localtime_s])
+
+#########
+# By default, we use the amalgamation (this may be changed below...)
+#
+USE_AMALGAMATION=1
+
+#########
+# See whether we can run specific tclsh versions known to work well;
+# if not, then we fall back to plain tclsh.
+# TODO: try other versions before falling back?
+# 
+AC_CHECK_PROGS(TCLSH_CMD, [tclsh8.5 tclsh], none)
+if test "$TCLSH_CMD" = "none"; then
+  # If we can't find a local tclsh, then building the amalgamation will fail.
+  # We act as though --disable-amalgamation has been used.
+  echo "Warning: can't find tclsh - defaulting to non-amalgamation build."
+  USE_AMALGAMATION=0
+  TCLSH_CMD="tclsh"
+fi
+AC_SUBST(TCLSH_CMD)
+
+AC_ARG_VAR([TCLLIBDIR], [Where to install tcl plugin])
+if test "x${TCLLIBDIR+set}" != "xset" ; then
+  TCLLIBDIR='$(libdir)'
+  for i in `echo 'puts stdout $auto_path' | ${TCLSH_CMD}` ; do
+    TCLLIBDIR=$i
+    break
+  done
+  TCLLIBDIR="${TCLLIBDIR}/sqlite3"
+fi
+
+
+#########
+# Set up an appropriate program prefix
+#
+if test "$program_prefix" = "NONE"; then
+  program_prefix=""
+fi
+AC_SUBST(program_prefix)
+
+VERSION=[`cat $srcdir/VERSION | sed 's/^\([0-9]*\.*[0-9]*\).*/\1/'`]
+AC_MSG_NOTICE(Version set to $VERSION)
+AC_SUBST(VERSION)
+RELEASE=`cat $srcdir/VERSION`
+AC_MSG_NOTICE(Release set to $RELEASE)
+AC_SUBST(RELEASE)
+VERSION_NUMBER=[`cat $srcdir/VERSION \
+                           | sed 's/[^0-9]/ /g' \
+                | awk '{printf "%d%03d%03d",$1,$2,$3}'`]
+AC_MSG_NOTICE(Version number set to $VERSION_NUMBER)
+AC_SUBST(VERSION_NUMBER)
+
+#########
+# Check to see if the --with-hints=FILE option is used.  If there is none,
+# then check for a files named "$host.hints" and ../$hosts.hints where
+# $host is the hostname of the build system.  If still no hints are
+# found, try looking in $system.hints and ../$system.hints where
+# $system is the result of uname -s.
+#
+AC_ARG_WITH(hints,
+  AC_HELP_STRING([--with-hints=FILE],[Read configuration options from FILE]),
+  hints=$withval)
+if test "$hints" = ""; then
+  host=`hostname | sed 's/\..*//'`
+  if test -r $host.hints; then
+    hints=$host.hints
+  else
+     if test -r ../$host.hints; then
+       hints=../$host.hints
+     fi
+  fi
+fi
+if test "$hints" = ""; then
+  sys=`uname -s`
+  if test -r $sys.hints; then
+    hints=$sys.hints
+  else
+     if test -r ../$sys.hints; then
+       hints=../$sys.hints
+     fi
+  fi
+fi
+if test "$hints" != ""; then
+  AC_MSG_RESULT(reading hints from $hints)
+  . $hints
+fi
+
+#########
+# Locate a compiler for the build machine.  This compiler should
+# generate command-line programs that run on the build machine.
+#
+if test x"$cross_compiling" = xno; then
+        BUILD_CC=$CC
+        BUILD_CFLAGS=$CFLAGS
+else
+        if test "${BUILD_CC+set}" != set; then
+                AC_CHECK_PROGS(BUILD_CC, gcc cc cl)
+        fi
+        if test "${BUILD_CFLAGS+set}" != set; then
+                BUILD_CFLAGS="-g"
+        fi
+fi
+AC_SUBST(BUILD_CC)
+
+##########
+# Do we want to support multithreaded use of sqlite
+#
+AC_ARG_ENABLE(threadsafe, 
+AC_HELP_STRING([--enable-threadsafe],[Support threadsafe operation]),,enable_threadsafe=yes)
+AC_MSG_CHECKING([whether to support threadsafe operation])
+if test "$enable_threadsafe" = "no"; then
+  SQLITE_THREADSAFE=0
+  AC_MSG_RESULT([no])
+else
+  SQLITE_THREADSAFE=1
+  AC_MSG_RESULT([yes])
+fi
+AC_SUBST(SQLITE_THREADSAFE)
+
+if test "$SQLITE_THREADSAFE" = "1"; then
+  AC_SEARCH_LIBS(pthread_create, pthread)
+fi
+
+##########
+# Do we want to allow a connection created in one thread to be used
+# in another thread.  This does not work on many Linux systems (ex: RedHat 9)
+# due to bugs in the threading implementations.  This is thus off by default.
+#
+AC_ARG_ENABLE(cross-thread-connections, 
+AC_HELP_STRING([--enable-cross-thread-connections],[Allow connection sharing across threads]),,enable_xthreadconnect=no)
+AC_MSG_CHECKING([whether to allow connections to be shared across threads])
+if test "$enable_xthreadconnect" = "no"; then
+  XTHREADCONNECT=''
+  AC_MSG_RESULT([no])
+else
+  XTHREADCONNECT='-DSQLITE_ALLOW_XTHREAD_CONNECT=1'
+  AC_MSG_RESULT([yes])
+fi
+AC_SUBST(XTHREADCONNECT)
+
+##########
+# Do we want to support release
+#
+AC_ARG_ENABLE(releasemode, 
+AC_HELP_STRING([--enable-releasemode],[Support libtool link to release mode]),,enable_releasemode=no)
+AC_MSG_CHECKING([whether to support shared library linked as release mode or not])
+if test "$enable_releasemode" = "no"; then
+  ALLOWRELEASE=""
+  AC_MSG_RESULT([no])
+else
+  ALLOWRELEASE="-release `cat $srcdir/VERSION`"
+  AC_MSG_RESULT([yes])
+fi
+AC_SUBST(ALLOWRELEASE)
+
+##########
+# Do we want temporary databases in memory
+#
+AC_ARG_ENABLE(tempstore, 
+AC_HELP_STRING([--enable-tempstore],[Use an in-ram database for temporary tables (never,no,yes,always)]),,enable_tempstore=no)
+AC_MSG_CHECKING([whether to use an in-ram database for temporary tables])
+case "$enable_tempstore" in
+  never ) 
+    TEMP_STORE=0
+    AC_MSG_RESULT([never])
+  ;;
+  no ) 
+    TEMP_STORE=1
+    AC_MSG_RESULT([no])
+  ;;
+  yes ) 
+     TEMP_STORE=2
+    AC_MSG_RESULT([yes])
+  ;;
+  always ) 
+     TEMP_STORE=3
+    AC_MSG_RESULT([always])
+  ;;
+  * ) 
+    TEMP_STORE=1
+    AC_MSG_RESULT([no])
+  ;;
+esac
+
+AC_SUBST(TEMP_STORE)
+
+###########
+# 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.
+#
+AC_MSG_CHECKING([if executables have the .exe suffix])
+if test "$config_BUILD_EXEEXT" = ".exe"; then
+  CYGWIN=yes
+  AC_MSG_RESULT(yes)
+else
+  AC_MSG_RESULT(unknown)
+fi
+if test "$CYGWIN" != "yes"; then
+  AC_CYGWIN
+fi
+if test "$CYGWIN" = "yes"; then
+  BUILD_EXEEXT=.exe
+else
+  BUILD_EXEEXT=$EXEEXT
+fi
+if test x"$cross_compiling" = xno; then
+  TARGET_EXEEXT=$BUILD_EXEEXT
+else
+  TARGET_EXEEXT=$config_TARGET_EXEEXT
+fi
+if test "$TARGET_EXEEXT" = ".exe"; then
+  if test $OS2_SHELL ; then
+    SQLITE_OS_UNIX=0
+    SQLITE_OS_WIN=0
+    SQLITE_OS_OS2=1
+    CFLAGS="$CFLAGS -DSQLITE_OS_OS2=1"
+  else
+    SQLITE_OS_UNIX=0
+    SQLITE_OS_WIN=1
+    SQLITE_OS_OS2=0
+    CFLAGS="$CFLAGS -DSQLITE_OS_WIN=1"
+  fi
+else
+  SQLITE_OS_UNIX=1
+  SQLITE_OS_WIN=0
+  SQLITE_OS_OS2=0
+  CFLAGS="$CFLAGS -DSQLITE_OS_UNIX=1"
+fi
+
+AC_SUBST(BUILD_EXEEXT)
+AC_SUBST(SQLITE_OS_UNIX)
+AC_SUBST(SQLITE_OS_WIN)
+AC_SUBST(SQLITE_OS_OS2)
+AC_SUBST(TARGET_EXEEXT)
+
+##########
+# Figure out all the parameters needed to compile against Tcl.
+#
+# This code is derived from the SC_PATH_TCLCONFIG and SC_LOAD_TCLCONFIG
+# macros in the in the tcl.m4 file of the standard TCL distribution.
+# Those macros could not be used directly since we have to make some
+# minor changes to accomodate systems that do not have TCL installed.
+#
+AC_ARG_ENABLE(tcl, AC_HELP_STRING([--disable-tcl],[do not build TCL extension]),
+      [use_tcl=$enableval],[use_tcl=yes])
+if test "${use_tcl}" = "yes" ; then
+  AC_ARG_WITH(tcl, AC_HELP_STRING([--with-tcl=DIR],[directory containing tcl configuration (tclConfig.sh)]), with_tclconfig=${withval})
+  AC_MSG_CHECKING([for Tcl configuration])
+  AC_CACHE_VAL(ac_cv_c_tclconfig,[
+    # First check to see if --with-tcl was specified.
+    if test x"${with_tclconfig}" != x ; then
+      if test -f "${with_tclconfig}/tclConfig.sh" ; then
+        ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
+      else
+        AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
+      fi
+    fi
+
+    # Start autosearch by asking tclsh
+    if test x"$cross_compiling" = xno; then
+      for i in `echo 'puts stdout $auto_path' | ${TCLSH_CMD}`
+      do
+        if test -f "$i/tclConfig.sh" ; then
+          ac_cv_c_tclconfig="$i"
+          break
+        fi
+      done
+    fi
+
+    # then check for a private Tcl installation
+    if test x"${ac_cv_c_tclconfig}" = x ; then
+      for i in \
+            ../tcl \
+            `ls -dr ../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+            `ls -dr ../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+            `ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+            ../../tcl \
+            `ls -dr ../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+            `ls -dr ../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+            `ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
+            ../../../tcl \
+            `ls -dr ../../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+            `ls -dr ../../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+            `ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null`
+      do
+        if test -f "$i/unix/tclConfig.sh" ; then
+          ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
+          break
+        fi
+      done
+    fi
+
+    # check in a few common install locations
+    if test x"${ac_cv_c_tclconfig}" = x ; then
+      for i in \
+            `ls -d ${libdir} 2>/dev/null` \
+            `ls -d /usr/local/lib 2>/dev/null` \
+            `ls -d /usr/contrib/lib 2>/dev/null` \
+            `ls -d /usr/lib 2>/dev/null`
+      do
+        if test -f "$i/tclConfig.sh" ; then
+           ac_cv_c_tclconfig=`(cd $i; pwd)`
+           break
+        fi
+      done
+    fi
+
+    # check in a few other private locations
+    if test x"${ac_cv_c_tclconfig}" = x ; then
+      for i in \
+         ${srcdir}/../tcl \
+         `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
+         `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]] 2>/dev/null` \
+         `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null`
+      do
+        if test -f "$i/unix/tclConfig.sh" ; then
+          ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
+          break
+        fi
+      done
+    fi
+  ])
+
+  if test x"${ac_cv_c_tclconfig}" = x ; then
+    use_tcl=no
+    AC_MSG_WARN(Can't find Tcl configuration definitions)
+    AC_MSG_WARN(*** Without Tcl the regression tests cannot be executed ***)
+    AC_MSG_WARN(*** Consider using --with-tcl=... to define location of Tcl ***)
+  else
+    TCL_BIN_DIR=${ac_cv_c_tclconfig}
+    AC_MSG_RESULT(found $TCL_BIN_DIR/tclConfig.sh)
+
+    AC_MSG_CHECKING([for existence of $TCL_BIN_DIR/tclConfig.sh])
+    if test -f "$TCL_BIN_DIR/tclConfig.sh" ; then
+      AC_MSG_RESULT([loading])
+      . $TCL_BIN_DIR/tclConfig.sh
+    else
+      AC_MSG_RESULT([file not found])
+    fi
+    
+    #
+    # If the TCL_BIN_DIR is the build directory (not the install directory),
+    # then set the common variable name to the value of the build variables.
+    # For example, the variable TCL_LIB_SPEC will be set to the value
+    # of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC
+    # instead of TCL_BUILD_LIB_SPEC since it will work with both an
+    # installed and uninstalled version of Tcl.
+    #
+    
+    if test -f $TCL_BIN_DIR/Makefile ; then
+      TCL_LIB_SPEC=${TCL_BUILD_LIB_SPEC}
+      TCL_STUB_LIB_SPEC=${TCL_BUILD_STUB_LIB_SPEC}
+      TCL_STUB_LIB_PATH=${TCL_BUILD_STUB_LIB_PATH}
+    fi
+    
+    #
+    # eval is required to do the TCL_DBGX substitution
+    #
+    
+    eval "TCL_LIB_FILE=\"${TCL_LIB_FILE}\""
+    eval "TCL_LIB_FLAG=\"${TCL_LIB_FLAG}\""
+    eval "TCL_LIB_SPEC=\"${TCL_LIB_SPEC}\""
+    
+    eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\""
+    eval "TCL_STUB_LIB_FLAG=\"${TCL_STUB_LIB_FLAG}\""
+    eval "TCL_STUB_LIB_SPEC=\"${TCL_STUB_LIB_SPEC}\""
+    
+    AC_SUBST(TCL_VERSION)
+    AC_SUBST(TCL_BIN_DIR)
+    AC_SUBST(TCL_SRC_DIR)
+    AC_SUBST(TCL_LIBS)
+    AC_SUBST(TCL_INCLUDE_SPEC)
+    
+    AC_SUBST(TCL_LIB_FILE)
+    AC_SUBST(TCL_LIB_FLAG)
+    AC_SUBST(TCL_LIB_SPEC)
+    
+    AC_SUBST(TCL_STUB_LIB_FILE)
+    AC_SUBST(TCL_STUB_LIB_FLAG)
+    AC_SUBST(TCL_STUB_LIB_SPEC)
+  fi
+fi
+if test "${use_tcl}" = "no" ; then
+  HAVE_TCL=""
+else
+  HAVE_TCL=1
+fi
+AC_SUBST(HAVE_TCL)
+
+##########
+# Figure out what C libraries are required to compile programs
+# that use "readline()" library.
+#
+TARGET_READLINE_LIBS=""
+TARGET_READLINE_INC=""
+TARGET_HAVE_READLINE=0
+AC_ARG_ENABLE([readline],
+        [AC_HELP_STRING([--disable-readline],[disable readline support [default=detect]])],
+        [with_readline=$enableval],
+        [with_readline=auto])
+
+if test x"$with_readline" != xno; then
+        found="yes"
+
+        AC_ARG_WITH([readline-lib],
+                [AC_HELP_STRING([--with-readline-lib],[specify readline library])],
+                [with_readline_lib=$withval],
+                [with_readline_lib="auto"])
+        if test "x$with_readline_lib" = xauto; then
+                save_LIBS="$LIBS"
+                LIBS=""
+                AC_SEARCH_LIBS(tgetent, [readline ncurses curses termcap], [term_LIBS="$LIBS"], [term_LIBS=""])
+                AC_CHECK_LIB([readline], [readline], [TARGET_READLINE_LIBS="-lreadline"], [found="no"])
+                TARGET_READLINE_LIBS="$TARGET_READLINE_LIBS $term_LIBS"
+                LIBS="$save_LIBS"
+        else
+                TARGET_READLINE_LIBS="$with_readline_lib"
+        fi
+
+        AC_ARG_WITH([readline-inc],
+                [AC_HELP_STRING([--with-readline-inc],[specify readline include paths])],
+                [with_readline_inc=$withval],
+                [with_readline_inc="auto"])
+        if test "x$with_readline_inc" = xauto; then
+                AC_CHECK_HEADER(readline.h, [found="yes"], [
+                        found="no"
+                        if test "$cross_compiling" != yes; then
+                                for dir in /usr /usr/local /usr/local/readline /usr/contrib /mingw; do
+                                        for subdir in include include/readline; do
+                                                AC_CHECK_FILE($dir/$subdir/readline.h, found=yes)
+                                                if test "$found" = "yes"; then
+                                                        TARGET_READLINE_INC="-I$dir/$subdir"
+                                                        break
+                                                fi
+                                        done
+                                        test "$found" = "yes" && break
+                                done
+                        fi
+                ])
+        else
+                TARGET_READLINE_INC="$with_readline_inc"
+        fi
+
+        if test x"$found" = xno; then
+                TARGET_READLINE_LIBS=""
+                TARGET_READLINE_INC=""
+                TARGET_HAVE_READLINE=0
+        else
+                TARGET_HAVE_READLINE=1
+        fi
+fi
+
+AC_SUBST(TARGET_READLINE_LIBS)
+AC_SUBST(TARGET_READLINE_INC)
+AC_SUBST(TARGET_HAVE_READLINE)
+
+##########
+# Figure out what C libraries are required to compile programs
+# that use "fdatasync()" function.
+#
+AC_SEARCH_LIBS(fdatasync, [rt])
+
+#########
+# check for debug enabled
+AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug],[enable debugging & verbose explain]),
+      [use_debug=$enableval],[use_debug=no])
+if test "${use_debug}" = "yes" ; then
+  TARGET_DEBUG="-DSQLITE_DEBUG=1"
+else
+  TARGET_DEBUG="-DNDEBUG"
+fi
+AC_SUBST(TARGET_DEBUG)
+
+#########
+# See whether we should use the amalgamation to build
+AC_ARG_ENABLE(amalgamation, AC_HELP_STRING([--disable-amalgamation],
+      [Disable the amalgamation and instead build all files separately]),
+      [use_amalgamation=$enableval],[use_amalgamation=yes])
+if test "${use_amalgamation}" != "yes" ; then
+  USE_AMALGAMATION=0
+fi
+AC_SUBST(USE_AMALGAMATION)
+
+#########
+# See whether we should allow loadable extensions
+AC_ARG_ENABLE(load-extension, AC_HELP_STRING([--enable-load-extension],
+      [Enable loading of external extensions]),
+      [use_loadextension=$enableval],[use_loadextension=no])
+if test "${use_loadextension}" = "yes" ; then
+  OPT_FEATURE_FLAGS=""
+else
+  OPT_FEATURE_FLAGS="-DSQLITE_OMIT_LOAD_EXTENSION=1"
+fi
+
+#########
+# attempt to duplicate any OMITS and ENABLES into the $(OPT_FEATURE_FLAGS) parameter
+for option in $CFLAGS $CPPFLAGS
+do
+  case $option in
+    -DSQLITE_OMIT*) OPT_FEATURE_FLAGS="$OPT_FEATURE_FLAGS $option";;
+    -DSQLITE_ENABLE*) OPT_FEATURE_FLAGS="$OPT_FEATURE_FLAGS $option";;
+  esac
+done
+AC_SUBST(OPT_FEATURE_FLAGS)
+
+
+# attempt to remove any OMITS and ENABLES from the $(CFLAGS) parameter
+ac_temp_CFLAGS=""
+for option in $CFLAGS
+do
+  case $option in
+    -DSQLITE_OMIT*) ;;
+    -DSQLITE_ENABLE*) ;;
+    *) ac_temp_CFLAGS="$ac_temp_CFLAGS $option";;
+  esac
+done
+CFLAGS=$ac_temp_CFLAGS
+
+
+# attempt to remove any OMITS and ENABLES from the $(CPPFLAGS) parameter
+ac_temp_CPPFLAGS=""
+for option in $CPPFLAGS
+do
+  case $option in
+    -DSQLITE_OMIT*) ;;
+    -DSQLITE_ENABLE*) ;;
+    *) ac_temp_CPPFLAGS="$ac_temp_CPPFLAGS $option";;
+  esac
+done
+CPPFLAGS=$ac_temp_CPPFLAGS
+
+
+# attempt to remove any OMITS and ENABLES from the $(BUILD_CFLAGS) parameter
+ac_temp_BUILD_CFLAGS=""
+for option in $BUILD_CFLAGS
+do
+  case $option in
+    -DSQLITE_OMIT*) ;;
+    -DSQLITE_ENABLE*) ;;
+    *) ac_temp_BUILD_CFLAGS="$ac_temp_BUILD_CFLAGS $option";;
+  esac
+done
+BUILD_CFLAGS=$ac_temp_BUILD_CFLAGS
+
+
+#########
+# See whether we should use GCOV
+AC_ARG_ENABLE(gcov, AC_HELP_STRING([--enable-gcov],
+      [Enable coverage testing using gcov]),
+      [use_gcov=$enableval],[use_gcov=no])
+if test "${use_gcov}" = "yes" ; then
+  USE_GCOV=1
+else
+  USE_GCOV=0
+fi
+AC_SUBST(USE_GCOV)
+
+
+#########
+# Output the config header
+AC_CONFIG_HEADERS(config.h)
+
+#########
+# Generate the output files.
+#
+AC_SUBST(BUILD_CFLAGS)
+AC_OUTPUT([
+Makefile
+sqlite3.pc
+])