configure.ac

   1 #
   2 # The build process allows for using a cross-compiler.  But the default
   3 # action is to target the same platform that we are running on.  The
   4 # configure script needs to discover the following properties of the
   5 # build and target systems:
   6 #
   7 #    srcdir
   8 #
   9 #        The is the name of the directory that contains the
  10 #        "configure" shell script.  All source files are
  11 #        located relative to this directory.
  12 #
  13 #    bindir
  14 #
  15 #        The name of the directory where executables should be
  16 #        written by the "install" target of the makefile.
  17 #
  18 #    program_prefix
  19 #
  20 #        Add this prefix to the names of all executables that run
  21 #        on the target machine.  Default: ""
  22 #
  23 #    ENABLE_SHARED
  24 #
  25 #        True if shared libraries should be generated.
  26 #
  27 #    BUILD_CC
  28 #
  29 #        The name of a command that is used to convert C
  30 #        source files into executables that run on the build
  31 #        platform.
  32 #
  33 #    BUILD_CFLAGS
  34 #
  35 #        Switches that the build compiler needs in order to construct
  36 #        command-line programs.
  37 #
  38 #    BUILD_LIBS
  39 #
  40 #        Libraries that the build compiler needs in order to construct
  41 #        command-line programs.
  42 #
  43 #    BUILD_EXEEXT
  44 #
  45 #        The filename extension for executables on the build
  46 #        platform.  "" for Unix and ".exe" for Windows.
  47 #
  48 #    TCL_*
  49 #
  50 #        Lots of values are read in from the tclConfig.sh script,
  51 #        if that script is available.  This values are used for
  52 #        constructing and installing the TCL extension.
  53 #
  54 #    TARGET_READLINE_LIBS
  55 #
  56 #        This is the library directives passed to the target linker
  57 #        that cause the executable to link against the readline library.
  58 #        This might be a switch like "-lreadline" or pathnames of library
  59 #        file like "../../src/libreadline.a".
  60 #
  61 #    TARGET_READLINE_INC
  62 #
  63 #        This variables define the directory that contain header
  64 #        files for the readline library.  If the compiler is able
  65 #        to find <readline.h> on its own, then this can be blank.
  66 #
  67 #    TARGET_EXEEXT
  68 #
  69 #        The filename extension for executables on the
  70 #        target platform.  "" for Unix and ".exe" for windows.
  71 #
  72 # This configure.in file is easy to reuse on other projects.  Just
  73 # change the argument to AC_INIT().  And disable any features that
  74 # you don't need (for example BLT) by erasing or commenting out
  75 # the corresponding code.
  76 #
  77 AC_INIT(sqlcipher, m4_esyscmd([cat VERSION | tr -d '\n']))
  78
  79 dnl Make sure the local VERSION file matches this configure script
  80 sqlite_version_sanity_check=`cat $srcdir/VERSION | tr -d '\n'`
  81 if test "$PACKAGE_VERSION" != "$sqlite_version_sanity_check" ; then
  82 AC_MSG_ERROR([configure script is out of date:
  83  configure \$PACKAGE_VERSION = $PACKAGE_VERSION
  84  top level VERSION file     = $sqlite_version_sanity_check
  85 please regen with autoconf])
  86 fi
  87
  88 #########
  89 # Programs needed
  90 #
  91 AC_PROG_LIBTOOL
  92 AC_PROG_INSTALL
  93
  94 #########
  95 # Enable large file support (if special flags are necessary)
  96 #
  97 AC_SYS_LARGEFILE
  98
  99 #########
 100 # Check for needed/wanted data types
 101 AC_CHECK_TYPES([int8_t, int16_t, int32_t, int64_t, intptr_t, uint8_t,
 102                 uint16_t, uint32_t, uint64_t, uintptr_t])
 103
 104 #########
 105 # Check for needed/wanted headers
 106 AC_CHECK_HEADERS([sys/types.h stdlib.h stdint.h inttypes.h malloc.h])
 107
 108 #########
 109 # Figure out whether or not we have these functions
 110 #
 111 AC_CHECK_FUNCS([fdatasync gmtime_r isnan localtime_r localtime_s malloc_usable_size strchrnul usleep utime pread pread64 pwrite pwrite64])
 112
 113 #########
 114 # By default, we use the amalgamation (this may be changed below...)
 115 #
 116 USE_AMALGAMATION=1
 117
 118 #########
 119 # See whether we can run specific tclsh versions known to work well;
 120 # if not, then we fall back to plain tclsh.
 121 # TODO: try other versions before falling back?
 122 #
 123 AC_CHECK_PROGS(TCLSH_CMD, [tclsh8.6 tclsh8.5 tclsh], none)
 124 if test "$TCLSH_CMD" = "none"; then
 125   # If we can't find a local tclsh, then building the amalgamation will fail.
 126   # We act as though --disable-amalgamation has been used.
 127   echo "Warning: can't find tclsh - defaulting to non-amalgamation build."
 128   USE_AMALGAMATION=0
 129   TCLSH_CMD="tclsh"
 130 fi
 131 AC_SUBST(TCLSH_CMD)
 132
 133 AC_ARG_VAR([TCLLIBDIR], [Where to install tcl plugin])
 134 if test "x${TCLLIBDIR+set}" != "xset" ; then
 135   TCLLIBDIR='$(libdir)'
 136   for i in `echo 'puts stdout $auto_path' | ${TCLSH_CMD}` ; do
 137     TCLLIBDIR=$i
 138     break
 139   done
 140   TCLLIBDIR="${TCLLIBDIR}/sqlite3"
 141 fi
 142
 143 #########
 144 # Set up an appropriate program prefix
 145 #
 146 if test "$program_prefix" = "NONE"; then
 147   program_prefix=""
 148 fi
 149 AC_SUBST(program_prefix)
 150
 151 VERSION=[`cat $srcdir/VERSION | sed 's/^\([0-9]*\.*[0-9]*\).*/\1/'`]
 152 AC_MSG_NOTICE(Version set to $VERSION)
 153 AC_SUBST(VERSION)
 154 RELEASE=`cat $srcdir/VERSION`
 155 AC_MSG_NOTICE(Release set to $RELEASE)
 156 AC_SUBST(RELEASE)
 157 VERSION_NUMBER=[`cat $srcdir/VERSION \
 158                            | sed 's/[^0-9]/ /g' \
 159                 | awk '{printf "%d%03d%03d",$1,$2,$3}'`]
 160 AC_MSG_NOTICE(Version number set to $VERSION_NUMBER)
 161 AC_SUBST(VERSION_NUMBER)
 162
 163 #########
 164 # Locate a compiler for the build machine.  This compiler should
 165 # generate command-line programs that run on the build machine.
 166 #
 167 if test x"$cross_compiling" = xno; then
 168         BUILD_CC=$CC
 169         BUILD_CFLAGS=$CFLAGS
 170 else
 171         if test "${BUILD_CC+set}" != set; then
 172                 AC_CHECK_PROGS(BUILD_CC, gcc cc cl)
 173         fi
 174         if test "${BUILD_CFLAGS+set}" != set; then
 175                 BUILD_CFLAGS="-g"
 176         fi
 177 fi
 178 AC_SUBST(BUILD_CC)
 179
 180 ##########
 181 # Do we want to support multithreaded use of sqlite
 182 #
 183 AC_ARG_ENABLE(threadsafe,
 184 AC_HELP_STRING([--disable-threadsafe],[Disable mutexing]),,enable_threadsafe=yes)
 185 AC_MSG_CHECKING([whether to support threadsafe operation])
 186 if test "$enable_threadsafe" = "no"; then
 187   SQLITE_THREADSAFE=0
 188   AC_MSG_RESULT([no])
 189 else
 190   SQLITE_THREADSAFE=1
 191   AC_MSG_RESULT([yes])
 192 fi
 193 AC_SUBST(SQLITE_THREADSAFE)
 194
 195 if test "$SQLITE_THREADSAFE" = "1"; then
 196   AC_SEARCH_LIBS(pthread_create, pthread)
 197   AC_SEARCH_LIBS(pthread_mutexattr_init, pthread)
 198 fi
 199
 200 ##########
 201 # Which crypto library do we use
 202 #
 203 AC_ARG_WITH([crypto-lib],
 204 AC_HELP_STRING([--with-crypto-lib],[Specify which crypto library to use]),
 205 crypto_lib=$withval)
 206 AC_MSG_CHECKING([for crypto library to use])
 207 if test "$crypto_lib" = "none"; then
 208   AC_MSG_RESULT([none])
 209 else
 210   if test "$crypto_lib" = "commoncrypto"; then
 211     CFLAGS+=" -DSQLCIPHER_CRYPTO_CC"
 212     BUILD_CFLAGS+=" -DSQLCIPHER_CRYPTO_CC"
 213           AC_MSG_RESULT([commoncrypto])
 214   else
 215     if test "$crypto_lib" = "libtomcrypt"; then
 216       CFLAGS+=" -DSQLCIPHER_CRYPTO_LIBTOMCRYPT"
 217       BUILD_CFLAGS+=" -DSQLCIPHER_CRYPTO_LIBTOMCRYPT"
 218       AC_MSG_RESULT([libtomcrypt])
 219       AC_CHECK_LIB([tomcrypt], [register_cipher], ,
 220                    AC_MSG_ERROR([Library crypto not found. Install libtomcrypt!"]))
 221     else
 222         CFLAGS+=" -DSQLCIPHER_CRYPTO_OPENSSL"
 223         BUILD_CFLAGS+=" -DSQLCIPHER_CRYPTO_OPENSSL"
 224               AC_MSG_RESULT([openssl])
 225         AC_CHECK_LIB([crypto], [HMAC_Init_ex], ,
 226                      AC_MSG_ERROR([Library crypto not found. Install openssl!"]))
 227     fi
 228   fi
 229 fi
 230
 231 ##########
 232 # Do we want to allow a connection created in one thread to be used
 233 # in another thread.  This does not work on many Linux systems (ex: RedHat 9)
 234 # due to bugs in the threading implementations.  This is thus off by default.
 235 #
 236 AC_ARG_ENABLE(cross-thread-connections,
 237 AC_HELP_STRING([--enable-cross-thread-connections],[Allow connection sharing across threads]),,enable_xthreadconnect=no)
 238 AC_MSG_CHECKING([whether to allow connections to be shared across threads])
 239 if test "$enable_xthreadconnect" = "no"; then
 240   XTHREADCONNECT=''
 241   AC_MSG_RESULT([no])
 242 else
 243   XTHREADCONNECT='-DSQLITE_ALLOW_XTHREAD_CONNECT=1'
 244   AC_MSG_RESULT([yes])
 245 fi
 246 AC_SUBST(XTHREADCONNECT)
 247
 248 ##########
 249 # Do we want to support release
 250 #
 251 AC_ARG_ENABLE(releasemode,
 252 AC_HELP_STRING([--enable-releasemode],[Support libtool link to release mode]),,enable_releasemode=no)
 253 AC_MSG_CHECKING([whether to support shared library linked as release mode or not])
 254 if test "$enable_releasemode" = "no"; then
 255   ALLOWRELEASE=""
 256   AC_MSG_RESULT([no])
 257 else
 258   ALLOWRELEASE="-release `cat $srcdir/VERSION`"
 259   AC_MSG_RESULT([yes])
 260 fi
 261 AC_SUBST(ALLOWRELEASE)
 262
 263 ##########
 264 # Do we want temporary databases in memory
 265 #
 266 AC_ARG_ENABLE(tempstore,
 267 AC_HELP_STRING([--enable-tempstore],[Use an in-ram database for temporary tables (never,no,yes,always)]),,enable_tempstore=no)
 268 AC_MSG_CHECKING([whether to use an in-ram database for temporary tables])
 269 case "$enable_tempstore" in
 270   never )
 271     TEMP_STORE=0
 272     AC_MSG_RESULT([never])
 273   ;;
 274   no )
 275     TEMP_STORE=1
 276     AC_MSG_RESULT([no])
 277   ;;
 278   yes )
 279      TEMP_STORE=2
 280     AC_MSG_RESULT([yes])
 281   ;;
 282   always )
 283      TEMP_STORE=3
 284     AC_MSG_RESULT([always])
 285   ;;
 286   * )
 287     TEMP_STORE=1
 288     AC_MSG_RESULT([no])
 289   ;;
 290 esac
 291
 292 AC_SUBST(TEMP_STORE)
 293
 294 ###########
 295 # Lots of things are different if we are compiling for Windows using
 296 # the CYGWIN environment.  So check for that special case and handle
 297 # things accordingly.
 298 #
 299 AC_MSG_CHECKING([if executables have the .exe suffix])
 300 if test "$config_BUILD_EXEEXT" = ".exe"; then
 301   CYGWIN=yes
 302   AC_MSG_RESULT(yes)
 303 else
 304   AC_MSG_RESULT(unknown)
 305 fi
 306 if test "$CYGWIN" != "yes"; then
 307   AC_CYGWIN
 308 fi
 309 if test "$CYGWIN" = "yes"; then
 310   BUILD_EXEEXT=.exe
 311 else
 312   BUILD_EXEEXT=$EXEEXT
 313 fi
 314 if test x"$cross_compiling" = xno; then
 315   TARGET_EXEEXT=$BUILD_EXEEXT
 316 else
 317   TARGET_EXEEXT=$config_TARGET_EXEEXT
 318 fi
 319 if test "$TARGET_EXEEXT" = ".exe"; then
 320   SQLITE_OS_UNIX=0
 321   SQLITE_OS_WIN=1
 322   CFLAGS="$CFLAGS -DSQLITE_OS_WIN=1"
 323 else
 324   SQLITE_OS_UNIX=1
 325   SQLITE_OS_WIN=0
 326   CFLAGS="$CFLAGS -DSQLITE_OS_UNIX=1"
 327 fi
 328
 329 AC_SUBST(BUILD_EXEEXT)
 330 AC_SUBST(SQLITE_OS_UNIX)
 331 AC_SUBST(SQLITE_OS_WIN)
 332 AC_SUBST(TARGET_EXEEXT)
 333
 334 ##########
 335 # Figure out all the parameters needed to compile against Tcl.
 336 #
 337 # This code is derived from the SC_PATH_TCLCONFIG and SC_LOAD_TCLCONFIG
 338 # macros in the in the tcl.m4 file of the standard TCL distribution.
 339 # Those macros could not be used directly since we have to make some
 340 # minor changes to accomodate systems that do not have TCL installed.
 341 #
 342 AC_ARG_ENABLE(tcl, AC_HELP_STRING([--disable-tcl],[do not build TCL extension]),
 343       [use_tcl=$enableval],[use_tcl=yes])
 344 if test "${use_tcl}" = "yes" ; then
 345   AC_ARG_WITH(tcl, AC_HELP_STRING([--with-tcl=DIR],[directory containing tcl configuration (tclConfig.sh)]), with_tclconfig=${withval})
 346   AC_MSG_CHECKING([for Tcl configuration])
 347   AC_CACHE_VAL(ac_cv_c_tclconfig,[
 348     # First check to see if --with-tcl was specified.
 349     if test x"${with_tclconfig}" != x ; then
 350       if test -f "${with_tclconfig}/tclConfig.sh" ; then
 351         ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
 352       else
 353         AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
 354       fi
 355     fi
 356
 357     # Start autosearch by asking tclsh
 358     if test x"${ac_cv_c_tclconfig}" = x ; then
 359       if test x"$cross_compiling" = xno; then
 360         for i in `echo 'puts stdout $auto_path' | ${TCLSH_CMD}`
 361         do
 362           if test -f "$i/tclConfig.sh" ; then
 363             ac_cv_c_tclconfig="$i"
 364             break
 365           fi
 366         done
 367       fi
 368     fi
 369
 370     # On ubuntu 14.10, $auto_path on tclsh is not quite correct.
 371     # So try again after applying corrections.
 372     if test x"${ac_cv_c_tclconfig}" = x ; then
 373       if test x"$cross_compiling" = xno; then
 374         for i in `echo 'puts stdout $auto_path' | ${TCLSH_CMD} | sed 's,/tcltk/tcl,/tcl,g'`
 375         do
 376           if test -f "$i/tclConfig.sh" ; then
 377             ac_cv_c_tclconfig="$i"
 378             break
 379           fi
 380         done
 381       fi
 382     fi
 383
 384     # Recent versions of Xcode on Macs hid the tclConfig.sh file
 385     # in a strange place.
 386     if test x"${ac_cv_c_tclconfig}" = x ; then
 387       if test x"$cross_compiling" = xno; then
 388         for i in /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX*.sdk/usr/lib
 389         do
 390           if test -f "$i/tclConfig.sh" ; then
 391             ac_cv_c_tclconfig="$i"
 392             break
 393           fi
 394         done
 395       fi
 396     fi
 397
 398     # then check for a private Tcl installation
 399     if test x"${ac_cv_c_tclconfig}" = x ; then
 400       for i in \
 401             ../tcl \
 402             `ls -dr ../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
 403             `ls -dr ../tcl[[8-9]].[[0-9]] 2>/dev/null` \
 404             `ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
 405             ../../tcl \
 406             `ls -dr ../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
 407             `ls -dr ../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
 408             `ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
 409             ../../../tcl \
 410             `ls -dr ../../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
 411             `ls -dr ../../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
 412             `ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null`
 413       do
 414         if test -f "$i/unix/tclConfig.sh" ; then
 415           ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
 416           break
 417         fi
 418       done
 419     fi
 420
 421     # check in a few common install locations
 422     if test x"${ac_cv_c_tclconfig}" = x ; then
 423       for i in \
 424             `ls -d ${libdir} 2>/dev/null` \
 425             `ls -d /usr/local/lib 2>/dev/null` \
 426             `ls -d /usr/contrib/lib 2>/dev/null` \
 427             `ls -d /usr/lib 2>/dev/null`
 428       do
 429         if test -f "$i/tclConfig.sh" ; then
 430            ac_cv_c_tclconfig=`(cd $i; pwd)`
 431            break
 432         fi
 433       done
 434     fi
 435
 436     # check in a few other private locations
 437     if test x"${ac_cv_c_tclconfig}" = x ; then
 438       for i in \
 439          ${srcdir}/../tcl \
 440          `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
 441          `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]] 2>/dev/null` \
 442          `ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null`
 443       do
 444         if test -f "$i/unix/tclConfig.sh" ; then
 445           ac_cv_c_tclconfig=`(cd $i/unix; pwd)`
 446           break
 447         fi
 448       done
 449     fi
 450   ])
 451
 452   if test x"${ac_cv_c_tclconfig}" = x ; then
 453     use_tcl=no
 454     AC_MSG_WARN(Can't find Tcl configuration definitions)
 455     AC_MSG_WARN(*** Without Tcl the regression tests cannot be executed ***)
 456     AC_MSG_WARN(*** Consider using --with-tcl=... to define location of Tcl ***)
 457   else
 458     TCL_BIN_DIR=${ac_cv_c_tclconfig}
 459     AC_MSG_RESULT(found $TCL_BIN_DIR/tclConfig.sh)
 460
 461     AC_MSG_CHECKING([for existence of $TCL_BIN_DIR/tclConfig.sh])
 462     if test -f "$TCL_BIN_DIR/tclConfig.sh" ; then
 463       AC_MSG_RESULT([loading])
 464       . $TCL_BIN_DIR/tclConfig.sh
 465     else
 466       AC_MSG_RESULT([file not found])
 467     fi
 468
 469     #
 470     # If the TCL_BIN_DIR is the build directory (not the install directory),
 471     # then set the common variable name to the value of the build variables.
 472     # For example, the variable TCL_LIB_SPEC will be set to the value
 473     # of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC
 474     # instead of TCL_BUILD_LIB_SPEC since it will work with both an
 475     # installed and uninstalled version of Tcl.
 476     #
 477
 478     if test -f $TCL_BIN_DIR/Makefile ; then
 479       TCL_LIB_SPEC=${TCL_BUILD_LIB_SPEC}
 480       TCL_STUB_LIB_SPEC=${TCL_BUILD_STUB_LIB_SPEC}
 481       TCL_STUB_LIB_PATH=${TCL_BUILD_STUB_LIB_PATH}
 482     fi
 483
 484     #
 485     # eval is required to do the TCL_DBGX substitution
 486     #
 487
 488     eval "TCL_LIB_FILE=\"${TCL_LIB_FILE}\""
 489     eval "TCL_LIB_FLAG=\"${TCL_LIB_FLAG}\""
 490     eval "TCL_LIB_SPEC=\"${TCL_LIB_SPEC}\""
 491
 492     eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\""
 493     eval "TCL_STUB_LIB_FLAG=\"${TCL_STUB_LIB_FLAG}\""
 494     eval "TCL_STUB_LIB_SPEC=\"${TCL_STUB_LIB_SPEC}\""
 495
 496     AC_SUBST(TCL_VERSION)
 497     AC_SUBST(TCL_BIN_DIR)
 498     AC_SUBST(TCL_SRC_DIR)
 499     AC_SUBST(TCL_INCLUDE_SPEC)
 500
 501     AC_SUBST(TCL_LIB_FILE)
 502     AC_SUBST(TCL_LIB_FLAG)
 503     AC_SUBST(TCL_LIB_SPEC)
 504
 505     AC_SUBST(TCL_STUB_LIB_FILE)
 506     AC_SUBST(TCL_STUB_LIB_FLAG)
 507     AC_SUBST(TCL_STUB_LIB_SPEC)
 508     AC_SUBST(TCL_SHLIB_SUFFIX)
 509   fi
 510 fi
 511 if test "${use_tcl}" = "no" ; then
 512   HAVE_TCL=""
 513 else
 514   HAVE_TCL=1
 515 fi
 516 AC_SUBST(HAVE_TCL)
 517
 518 ##########
 519 # Figure out what C libraries are required to compile programs
 520 # that use "readline()" library.
 521 #
 522 TARGET_READLINE_LIBS=""
 523 TARGET_READLINE_INC=""
 524 TARGET_HAVE_READLINE=0
 525 TARGET_HAVE_EDITLINE=0
 526 AC_ARG_ENABLE([editline],
 527         [AC_HELP_STRING([--enable-editline],[enable BSD editline support])],
 528         [with_editline=$enableval],
 529         [with_editline=auto])
 530 AC_ARG_ENABLE([readline],
 531         [AC_HELP_STRING([--disable-readline],[disable readline support])],
 532         [with_readline=$enableval],
 533         [with_readline=auto])
 534
 535 if test x"$with_editline" != xno; then
 536         sLIBS=$LIBS
 537         LIBS=""
 538         TARGET_HAVE_EDITLINE=1
 539         AC_SEARCH_LIBS(readline,edit,[with_readline=no],[TARGET_HAVE_EDITLINE=0])
 540         TARGET_READLINE_LIBS=$LIBS
 541         LIBS=$sLIBS
 542 fi
 543 if test x"$with_readline" != xno; then
 544         found="yes"
 545
 546         AC_ARG_WITH([readline-lib],
 547                 [AC_HELP_STRING([--with-readline-lib],[specify readline library])],
 548                 [with_readline_lib=$withval],
 549                 [with_readline_lib="auto"])
 550         if test "x$with_readline_lib" = xauto; then
 551                 save_LIBS="$LIBS"
 552                 LIBS=""
 553                 AC_SEARCH_LIBS(tgetent, [readline ncurses curses termcap], [term_LIBS="$LIBS"], [term_LIBS=""])
 554                 AC_CHECK_LIB([readline], [readline], [TARGET_READLINE_LIBS="-lreadline"], [found="no"])
 555                 TARGET_READLINE_LIBS="$TARGET_READLINE_LIBS $term_LIBS"
 556                 LIBS="$save_LIBS"
 557         else
 558                 TARGET_READLINE_LIBS="$with_readline_lib"
 559         fi
 560
 561         AC_ARG_WITH([readline-inc],
 562                 [AC_HELP_STRING([--with-readline-inc],[specify readline include paths])],
 563                 [with_readline_inc=$withval],
 564                 [with_readline_inc="auto"])
 565         if test "x$with_readline_inc" = xauto; then
 566                 AC_CHECK_HEADER(readline.h, [found="yes"], [
 567                         found="no"
 568                         if test "$cross_compiling" != yes; then
 569                                 for dir in /usr /usr/local /usr/local/readline /usr/contrib /mingw; do
 570                                         for subdir in include include/readline; do
 571                                                 AC_CHECK_FILE($dir/$subdir/readline.h, found=yes)
 572                                                 if test "$found" = "yes"; then
 573                                                         TARGET_READLINE_INC="-I$dir/$subdir"
 574                                                         break
 575                                                 fi
 576                                         done
 577                                         test "$found" = "yes" && break
 578                                 done
 579                         fi
 580                 ])
 581         else
 582                 TARGET_READLINE_INC="$with_readline_inc"
 583         fi
 584
 585         if test x"$found" = xno; then
 586                 TARGET_READLINE_LIBS=""
 587                 TARGET_READLINE_INC=""
 588                 TARGET_HAVE_READLINE=0
 589         else
 590                 TARGET_HAVE_READLINE=1
 591         fi
 592 fi
 593
 594 AC_SUBST(TARGET_READLINE_LIBS)
 595 AC_SUBST(TARGET_READLINE_INC)
 596 AC_SUBST(TARGET_HAVE_READLINE)
 597 AC_SUBST(TARGET_HAVE_EDITLINE)
 598
 599 ##########
 600 # Figure out what C libraries are required to compile programs
 601 # that use "fdatasync()" function.
 602 #
 603 AC_SEARCH_LIBS(fdatasync, [rt])
 604
 605 #########
 606 # check for debug enabled
 607 AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug],[enable debugging & verbose explain]),
 608       [use_debug=$enableval],[use_debug=no])
 609 if test "${use_debug}" = "yes" ; then
 610   TARGET_DEBUG="-DSQLITE_DEBUG=1 -DSQLITE_ENABLE_SELECTTRACE -DSQLITE_ENABLE_WHERETRACE -O0"
 611 else
 612   TARGET_DEBUG="-DNDEBUG"
 613 fi
 614 AC_SUBST(TARGET_DEBUG)
 615
 616 #########
 617 # See whether we should use the amalgamation to build
 618 AC_ARG_ENABLE(amalgamation, AC_HELP_STRING([--disable-amalgamation],
 619       [Disable the amalgamation and instead build all files separately]),
 620       [use_amalgamation=$enableval],[use_amalgamation=yes])
 621 if test "${use_amalgamation}" != "yes" ; then
 622   USE_AMALGAMATION=0
 623 fi
 624 AC_SUBST(USE_AMALGAMATION)
 625
 626 #########
 627 # See whether we should allow loadable extensions
 628 AC_ARG_ENABLE(load-extension, AC_HELP_STRING([--disable-load-extension],
 629       [Disable loading of external extensions]),
 630       [use_loadextension=$enableval],[use_loadextension=yes])
 631 if test "${use_loadextension}" = "yes" ; then
 632   OPT_FEATURE_FLAGS=""
 633   AC_SEARCH_LIBS(dlopen, dl)
 634 else
 635   OPT_FEATURE_FLAGS="-DSQLITE_OMIT_LOAD_EXTENSION=1"
 636 fi
 637
 638 ##########
 639 # Do we want to support memsys3 and/or memsys5
 640 #
 641 AC_ARG_ENABLE(memsys5,
 642   AC_HELP_STRING([--enable-memsys5],[Enable MEMSYS5]),
 643   [enable_memsys5=yes],[enable_memsys5=no])
 644 AC_MSG_CHECKING([whether to support MEMSYS5])
 645 if test "${enable_memsys5}" = "yes"; then
 646   OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_MEMSYS5"
 647   AC_MSG_RESULT([yes])
 648 else
 649   AC_MSG_RESULT([no])
 650 fi
 651 AC_ARG_ENABLE(memsys3,
 652   AC_HELP_STRING([--enable-memsys3],[Enable MEMSYS3]),
 653   [enable_memsys3=yes],[enable_memsys3=no])
 654 AC_MSG_CHECKING([whether to support MEMSYS3])
 655 if test "${enable_memsys3}" = "yes" -a "${enable_memsys5}" = "no"; then
 656   OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_MEMSYS3"
 657   AC_MSG_RESULT([yes])
 658 else
 659   AC_MSG_RESULT([no])
 660 fi
 661
 662 #########
 663 # See whether we should enable Full Text Search extensions
 664 AC_ARG_ENABLE(fts3, AC_HELP_STRING([--enable-fts3],
 665       [Enable the FTS3 extension]),
 666       [enable_fts3=yes],[enable_fts3=no])
 667 if test "${enable_fts3}" = "yes" ; then
 668   OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS3"
 669 fi
 670 AC_ARG_ENABLE(fts4, AC_HELP_STRING([--enable-fts4],
 671       [Enable the FTS4 extension]),
 672       [enable_fts4=yes],[enable_fts4=no])
 673 if test "${enable_fts4}" = "yes" ; then
 674   OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS4"
 675   AC_SEARCH_LIBS([log],[m])
 676 fi
 677 AC_ARG_ENABLE(fts5, AC_HELP_STRING([--enable-fts5],
 678       [Enable the FTS5 extension]),
 679       [enable_fts5=yes],[enable_fts5=no])
 680 if test "${enable_fts5}" = "yes" ; then
 681   OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_FTS5"
 682   AC_SEARCH_LIBS([log],[m])
 683 fi
 684
 685 #########
 686 # See whether we should enable JSON1
 687 AC_ARG_ENABLE(json1, AC_HELP_STRING([--enable-json1],
 688       [Enable the JSON1 extension]),
 689       [enable_json1=yes],[enable_json1=no])
 690 if test "${enable_json1}" = "yes" ; then
 691   OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_JSON1"
 692 fi
 693
 694 #########
 695 # See whether we should enable RTREE
 696 AC_ARG_ENABLE(rtree, AC_HELP_STRING([--enable-rtree],
 697       [Enable the RTREE extension]),
 698       [enable_rtree=yes],[enable_rtree=no])
 699 if test "${enable_rtree}" = "yes" ; then
 700   OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_RTREE"
 701 fi
 702
 703 #########
 704 # See whether we should enable the SESSION extension
 705 AC_ARG_ENABLE(session, AC_HELP_STRING([--enable-session],
 706       [Enable the SESSION extension]),
 707       [enable_session=yes],[enable_session=no])
 708 if test "${enable_session}" = "yes" ; then
 709   OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_SESSION"
 710   OPT_FEATURE_FLAGS="${OPT_FEATURE_FLAGS} -DSQLITE_ENABLE_PREUPDATE_HOOK"
 711 fi
 712
 713 #########
 714 # attempt to duplicate any OMITS and ENABLES into the ${OPT_FEATURE_FLAGS} parameter
 715 for option in $CFLAGS $CPPFLAGS
 716 do
 717   case $option in
 718     -DSQLITE_OMIT*) OPT_FEATURE_FLAGS="$OPT_FEATURE_FLAGS $option";;
 719     -DSQLITE_ENABLE*) OPT_FEATURE_FLAGS="$OPT_FEATURE_FLAGS $option";;
 720   esac
 721 done
 722 AC_SUBST(OPT_FEATURE_FLAGS)
 723
 724
 725 # attempt to remove any OMITS and ENABLES from the $(CFLAGS) parameter
 726 ac_temp_CFLAGS=""
 727 for option in $CFLAGS
 728 do
 729   case $option in
 730     -DSQLITE_OMIT*) ;;
 731     -DSQLITE_ENABLE*) ;;
 732     *) ac_temp_CFLAGS="$ac_temp_CFLAGS $option";;
 733   esac
 734 done
 735 CFLAGS=$ac_temp_CFLAGS
 736
 737
 738 # attempt to remove any OMITS and ENABLES from the $(CPPFLAGS) parameter
 739 ac_temp_CPPFLAGS=""
 740 for option in $CPPFLAGS
 741 do
 742   case $option in
 743     -DSQLITE_OMIT*) ;;
 744     -DSQLITE_ENABLE*) ;;
 745     *) ac_temp_CPPFLAGS="$ac_temp_CPPFLAGS $option";;
 746   esac
 747 done
 748 CPPFLAGS=$ac_temp_CPPFLAGS
 749
 750
 751 # attempt to remove any OMITS and ENABLES from the $(BUILD_CFLAGS) parameter
 752 ac_temp_BUILD_CFLAGS=""
 753 for option in $BUILD_CFLAGS
 754 do
 755   case $option in
 756     -DSQLITE_OMIT*) ;;
 757     -DSQLITE_ENABLE*) ;;
 758     *) ac_temp_BUILD_CFLAGS="$ac_temp_BUILD_CFLAGS $option";;
 759   esac
 760 done
 761 BUILD_CFLAGS=$ac_temp_BUILD_CFLAGS
 762
 763
 764 #########
 765 # See whether we should use GCOV
 766 AC_ARG_ENABLE(gcov, AC_HELP_STRING([--enable-gcov],
 767       [Enable coverage testing using gcov]),
 768       [use_gcov=$enableval],[use_gcov=no])
 769 if test "${use_gcov}" = "yes" ; then
 770   USE_GCOV=1
 771 else
 772   USE_GCOV=0
 773 fi
 774 AC_SUBST(USE_GCOV)
 775
 776
 777 #########
 778 # Output the config header
 779 AC_CONFIG_HEADERS(config.h)
 780
 781 #########
 782 # Generate the output files.
 783 #
 784 AC_SUBST(BUILD_CFLAGS)
 785 AC_OUTPUT([
 786 Makefile
 787 sqlcipher.pc
 788 ])