#-----------------------------------------------------------------------# Supports the following non-standard switches.##   --enable-threadsafe#   --enable-readline#   --enable-dynamic-extensions# AC_PREREQ(2.61)AC_INIT(sqlite, 3.7.15.1, http://www.sqlite.org)AC_CONFIG_SRCDIR([sqlite3.c]) # Use automake.AM_INIT_AUTOMAKE([foreign]) AC_SYS_LARGEFILE # Check for required programs.AC_PROG_CCAC_PROG_RANLIBAC_PROG_LIBTOOLAC_PROG_MKDIR_P # Check for library functions that SQLite can optionally use.AC_CHECK_FUNCS([fdatasync usleep fullfsync localtime_r gmtime_r])AC_FUNC_STRERROR_R AC_CONFIG_FILES([Makefile sqlite3.pc])AC_SUBST(BUILD_CFLAGS) #-----------------------------------------------------------------------#   --enable-readline#AC_ARG_ENABLE(readline, [AS_HELP_STRING(  [--enable-readline],   [use readline in shell tool (yes, no) [default=yes]])],   [], [enable_readline=yes])if test x"$enable_readline" != xno ; then  sLIBS=$LIBS  LIBS=""  AC_SEARCH_LIBS(tgetent, curses ncurses ncursesw, [], [])  AC_SEARCH_LIBS(readline, readline, [], [enable_readline=no])  AC_CHECK_FUNCS(readline, [], [])  READLINE_LIBS=$LIBS  LIBS=$sLIBSfiAC_SUBST(READLINE_LIBS)#----------------------------------------------------------------------- #-----------------------------------------------------------------------#   --enable-threadsafe#AC_ARG_ENABLE(threadsafe, [AS_HELP_STRING(  [--enable-threadsafe], [build a thread-safe library [default=yes]])],   [], [enable_threadsafe=yes])THREADSAFE_FLAGS=-DSQLITE_THREADSAFE=0if test x"$enable_threadsafe" != "xno"; then  THREADSAFE_FLAGS="-D_REENTRANT=1 -DSQLITE_THREADSAFE=1"  AC_SEARCH_LIBS(pthread_create, pthread)fiAC_SUBST(THREADSAFE_FLAGS)#----------------------------------------------------------------------- #-----------------------------------------------------------------------#   --enable-dynamic-extensions#AC_ARG_ENABLE(dynamic-extensions, [AS_HELP_STRING(  [--enable-dynamic-extensions], [support loadable extensions [default=yes]])],   [], [enable_dynamic_extensions=yes])if test x"$enable_dynamic_extensions" != "xno"; then  AC_SEARCH_LIBS(dlopen, dl)else  DYNAMIC_EXTENSION_FLAGS=-DSQLITE_OMIT_LOAD_EXTENSION=1fiAC_MSG_CHECKING([for whether to support dynamic extensions])AC_MSG_RESULT($enable_dynamic_extensions)AC_SUBST(DYNAMIC_EXTENSION_FLAGS)#----------------------------------------------------------------------- AC_CHECK_FUNCS(posix_fallocate) #-----------------------------------------------------------------------# UPDATE: Maybe it's better if users just set CFLAGS before invoking# configure. This option doesn't really add much...##   --enable-tempstore## AC_ARG_ENABLE(tempstore, [AS_HELP_STRING(#   [--enable-tempstore], #   [in-memory temporary tables (never, no, yes, always) [default=no]])], #   [], [enable_tempstore=no])# AC_MSG_CHECKING([for whether or not to store temp tables in-memory])# case "$enable_tempstore" in#   never )  TEMP_STORE=0 ;;#   no )     TEMP_STORE=1 ;;#   always ) TEMP_STORE=3 ;;#   yes )    TEMP_STORE=3 ;;#   * )#     TEMP_STORE=1#     enable_tempstore=yes#   ;;# esac# AC_MSG_RESULT($enable_tempstore)# AC_SUBST(TEMP_STORE)#----------------------------------------------------------------------- AC_OUTPUT