1 #
   2 # Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved.
   3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4 #
   5 # This code is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License version 2 only, as
   7 # published by the Free Software Foundation.  Oracle designates this
   8 # particular file as subject to the "Classpath" exception as provided
   9 # by Oracle in the LICENSE file that accompanied this code.
  10 #
  11 # This code is distributed in the hope that it will be useful, but WITHOUT
  12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 # version 2 for more details (a copy is included in the LICENSE file that
  15 # accompanied this code).
  16 #
  17 # You should have received a copy of the GNU General Public License version
  18 # 2 along with this work; if not, write to the Free Software Foundation,
  19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20 #
  21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22 # or visit www.oracle.com if you need additional information or have any
  23 # questions.
  24 #
  25 
  26 AC_DEFUN_ONCE([LIB_SETUP_INIT],
  27 [
  28         
  29 ###############################################################################
  30 #
  31 # OS specific settings that we never will need to probe.
  32 #
  33 if test "x$OPENJDK_TARGET_OS" = xlinux; then
  34     AC_MSG_CHECKING([what is not needed on Linux?])
  35     PULSE_NOT_NEEDED=yes
  36     AC_MSG_RESULT([pulse])
  37 fi
  38 
  39 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
  40     AC_MSG_CHECKING([what is not needed on Solaris?])
  41     ALSA_NOT_NEEDED=yes
  42     PULSE_NOT_NEEDED=yes
  43     AC_MSG_RESULT([alsa pulse])
  44 fi
  45 
  46 if test "x$OPENJDK_TARGET_OS" = xwindows; then
  47     AC_MSG_CHECKING([what is not needed on Windows?])
  48     CUPS_NOT_NEEDED=yes    
  49     ALSA_NOT_NEEDED=yes
  50     PULSE_NOT_NEEDED=yes
  51     X11_NOT_NEEDED=yes
  52     AC_MSG_RESULT([alsa cups pulse x11])
  53 fi
  54 
  55 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
  56     AC_MSG_CHECKING([what is not needed on MacOSX?])
  57     ALSA_NOT_NEEDED=yes
  58     PULSE_NOT_NEEDED=yes
  59     X11_NOT_NEEDED=yes
  60     FREETYPE2_NOT_NEEDED=yes    
  61     # If the java runtime framework is disabled, then we need X11.
  62     # This will be adjusted below.
  63     AC_MSG_RESULT([alsa pulse x11])
  64 fi
  65 
  66 if test "x$OPENJDK_TARGET_OS" = xbsd; then
  67     AC_MSG_CHECKING([what is not needed on bsd?])
  68     ALSA_NOT_NEEDED=yes
  69     AC_MSG_RESULT([alsa])    
  70 fi
  71 
  72 if test "x$OPENJDK" = "xfalse"; then
  73     FREETYPE2_NOT_NEEDED=yes
  74 fi
  75 
  76 ###############################################################################
  77 #
  78 # Check for MacOSX support for OpenJDK. If this exists, try to build a JVM
  79 # that uses this API. 
  80 #
  81 AC_ARG_ENABLE([macosx-runtime-support], [AS_HELP_STRING([--disable-macosx-runtime-support],
  82         [disable the use of MacOSX Java runtime support framework @<:@enabled@:>@])],
  83         [MACOSX_RUNTIME_SUPPORT="${enableval}"],[MACOSX_RUNTIME_SUPPORT="no"])
  84 
  85 USE_MACOSX_RUNTIME_SUPPORT=no
  86 AC_MSG_CHECKING([for explicit Java runtime support in the OS])
  87 if test -f /System/Library/Frameworks/JavaVM.framework/Frameworks/JavaRuntimeSupport.framework/Headers/JavaRuntimeSupport.h; then
  88     if test "x$MACOSX_RUNTIME_SUPPORT" != xno; then
  89         MACOSX_RUNTIME_SUPPORT=yes
  90         USE_MACOSX_RUNTIME_SUPPORT=yes
  91         AC_MSG_RESULT([yes, does not need alsa freetype2 pulse and X11])
  92     else
  93         AC_MSG_RESULT([yes, but explicitly disabled.])
  94     fi
  95 else
  96     AC_MSG_RESULT([no])
  97 fi
  98 
  99 if test "x$OPENJDK_TARGET_OS" = xmacosx && test "x$USE_MACOSX_RUNTIME_SUPPORT" = xno; then
 100     AC_MSG_CHECKING([what is not needed on an X11 build on MacOSX?])
 101     X11_NOT_NEEDED=
 102     FREETYPE2_NOT_NEEDED=
 103     AC_MSG_RESULT([alsa pulse])
 104 fi
 105 ])
 106 
 107 AC_DEFUN_ONCE([LIB_SETUP_X11],
 108 [
 109 
 110 ###############################################################################
 111 #
 112 # Check for X Windows
 113 #
 114 
 115 # Check if the user has specified sysroot, but not --x-includes or --x-libraries.
 116 # Make a simple check for the libraries at the sysroot, and setup --x-includes and
 117 # --x-libraries for the sysroot, if that seems to be correct.
 118 if test "x$SYS_ROOT" != "x/"; then
 119   if test "x$x_includes" = xNONE; then
 120     if test -f "$SYS_ROOT/usr/X11R6/include/X11/Xlib.h"; then
 121       x_includes="$SYS_ROOT/usr/X11R6/include"
 122     fi
 123   fi
 124   if test "x$x_libraries" = xNONE; then
 125     if test -f "$SYS_ROOT/usr/X11R6/lib/libX11.so"; then
 126       x_libraries="$SYS_ROOT/usr/X11R6/lib"
 127     fi
 128   fi
 129 fi
 130 
 131 # Now let autoconf do it's magic
 132 AC_PATH_X
 133 AC_PATH_XTRA
 134 
 135 if test "x$no_x" = xyes && test "x$X11_NOT_NEEDED" != xyes; then 
 136     HELP_MSG_MISSING_DEPENDENCY([x11])
 137     AC_MSG_ERROR([Could not find X11 libraries. $HELP_MSG])
 138 fi
 139 
 140 # Some of the old makefiles require a setting of OPENWIN_HOME
 141 # Since the X11R6 directory has disappeared on later Linuxes,
 142 # we need to probe for it.
 143 if test "x$OPENJDK_TARGET_OS" = xlinux; then
 144     if test -d "$SYS_ROOT/usr/X11R6"; then
 145         OPENWIN_HOME="$SYS_ROOT/usr/X11R6"
 146     fi
 147     if test -d "$SYS_ROOT/usr/include/X11"; then
 148         OPENWIN_HOME="$SYS_ROOT/usr"
 149     fi
 150 fi
 151 if test "x$OPENJDK_TARGET_OS" = xsolaris; then
 152     OPENWIN_HOME="/usr/openwin"
 153 fi
 154 AC_SUBST(OPENWIN_HOME)
 155 
 156 
 157 #
 158 # Weird Sol10 something check...TODO change to try compile
 159 #
 160 if test "x${OPENJDK_TARGET_OS}" = xsolaris; then
 161   if test "`uname -r`" = "5.10"; then
 162      if test "`${EGREP} -c XLinearGradient ${OPENWIN_HOME}/share/include/X11/extensions/Xrender.h`" = "0"; then
 163         X_CFLAGS="${X_CFLAGS} -DSOLARIS10_NO_XRENDER_STRUCTS"
 164      fi
 165   fi
 166 fi
 167 
 168 AC_LANG_PUSH(C)
 169 OLD_CFLAGS="$CFLAGS"
 170 CFLAGS="$CFLAGS $X_CFLAGS"
 171 AC_CHECK_HEADERS([X11/extensions/shape.h X11/extensions/Xrender.h X11/extensions/XTest.h],
 172                 [X11_A_OK=yes],
 173                 [X11_A_OK=no])
 174 CFLAGS="$OLD_CFLAGS"
 175 AC_LANG_POP(C)
 176 
 177 if test "x$X11_A_OK" = xno && test "x$X11_NOT_NEEDED" != xyes; then 
 178     HELP_MSG_MISSING_DEPENDENCY([x11])
 179     AC_MSG_ERROR([Could not find all X11 headers (shape.h Xrender.h XTest.h). $HELP_MSG])
 180 fi
 181 
 182 AC_SUBST(X_CFLAGS)
 183 AC_SUBST(X_LIBS)
 184 ])
 185 
 186 AC_DEFUN_ONCE([LIB_SETUP_CUPS],
 187 [
 188 
 189 ###############################################################################
 190 #
 191 # The common unix printing system cups is used to print from java.
 192 #
 193 AC_ARG_WITH(cups, [AS_HELP_STRING([--with-cups],
 194     [specify prefix directory for the cups package
 195          (expecting the libraries under PATH/lib and the headers under PATH/include)])])
 196 AC_ARG_WITH(cups-include, [AS_HELP_STRING([--with-cups-include],
 197         [specify directory for the cups include files])])
 198 AC_ARG_WITH(cups-lib, [AS_HELP_STRING([--with-cups-lib],
 199         [specify directory for the cups library])])
 200 
 201 if test "x$CUPS_NOT_NEEDED" = xyes; then
 202         if test "x${with_cups}" != x || test "x${with_cups_include}" != x || test "x${with_cups_lib}" != x; then
 203                 AC_MSG_WARN([cups not used, so --with-cups is ignored])
 204         fi
 205         CUPS_CFLAGS=
 206         CUPS_LIBS=
 207 else
 208         CUPS_FOUND=no
 209 
 210         if test "x${with_cups}" = xno || test "x${with_cups_include}" = xno || test "x${with_cups_lib}" = xno; then
 211             AC_MSG_ERROR([It is not possible to disable the use of cups. Remove the --without-cups option.])
 212         fi
 213 
 214         if test "x${with_cups}" != x; then
 215             CUPS_LIBS="-L${with_cups}/lib -lcups"
 216             CUPS_CFLAGS="-I${with_cups}/include"
 217             CUPS_FOUND=yes
 218         fi
 219         if test "x${with_cups_include}" != x; then
 220             CUPS_CFLAGS="-I${with_cups_include}"
 221             CUPS_FOUND=yes
 222         fi
 223         if test "x${with_cups_lib}" != x; then
 224             CUPS_LIBS="-L${with_cups_lib} -lcups"
 225             CUPS_FOUND=yes
 226         fi
 227         if test "x$CUPS_FOUND" = xno; then
 228             BDEPS_CHECK_MODULE(CUPS, cups, xxx, [CUPS_FOUND=yes])
 229         fi
 230         if test "x$CUPS_FOUND" = xno; then
 231             # Are the cups headers installed in the default /usr/include location?
 232             AC_CHECK_HEADERS([cups/cups.h cups/ppd.h],
 233                              [CUPS_FOUND=yes
 234                               CUPS_CFLAGS=
 235                               CUPS_LIBS="-lcups"
 236                               DEFAULT_CUPS=yes])
 237         fi
 238         if test "x$CUPS_FOUND" = xno; then
 239             # Getting nervous now? Lets poke around for standard Solaris third-party
 240             # package installation locations.
 241             AC_MSG_CHECKING([for cups headers and libs])
 242             if test -s /opt/sfw/cups/include/cups/cups.h; then
 243                # An SFW package seems to be installed!
 244                CUPS_FOUND=yes
 245                CUPS_CFLAGS="-I/opt/sfw/cups/include"
 246                CUPS_LIBS="-L/opt/sfw/cups/lib -lcups"
 247             elif test -s /opt/csw/include/cups/cups.h; then
 248                # A CSW package seems to be installed!
 249                CUPS_FOUND=yes
 250                CUPS_CFLAGS="-I/opt/csw/include"
 251                CUPS_LIBS="-L/opt/csw/lib -lcups"
 252             fi
 253             AC_MSG_RESULT([$CUPS_FOUND])
 254         fi
 255         if test "x$CUPS_FOUND" = xno; then 
 256             HELP_MSG_MISSING_DEPENDENCY([cups])
 257             AC_MSG_ERROR([Could not find cups! $HELP_MSG ])
 258         fi
 259 fi
 260 
 261 AC_SUBST(CUPS_CFLAGS)
 262 AC_SUBST(CUPS_LIBS)
 263 
 264 ])
 265 
 266 AC_DEFUN_ONCE([LIB_SETUP_FREETYPE],
 267 [
 268 
 269 ###############################################################################
 270 #
 271 # The ubiquitous freetype2 library is used to render fonts.
 272 #
 273 AC_ARG_WITH(freetype, [AS_HELP_STRING([--with-freetype],
 274         [specify prefix directory for the freetype2 package
 275      (expecting the libraries under PATH/lib and the headers under PATH/include)])])
 276 
 277 # If we are using the OS installed system lib for freetype, then we do not need to copy it to the build tree
 278 USING_SYSTEM_FT_LIB=false
 279 
 280 if test "x$FREETYPE2_NOT_NEEDED" = xyes; then
 281         if test "x$with_freetype" != x || test "x$with_freetype_include" != x || test "x$with_freetype_lib" != x; then
 282                 AC_MSG_WARN([freetype not used, so --with-freetype is ignored])
 283         fi
 284         FREETYPE2_CFLAGS=
 285         FREETYPE2_LIBS=
 286         FREETYPE2_LIB_PATH=
 287 else
 288         FREETYPE2_FOUND=no
 289 
 290         if test "x$with_freetype" != x; then
 291             SPACESAFE(with_freetype,[the path to freetype])
 292             FREETYPE2_LIBS="-L$with_freetype/lib -lfreetype"
 293             if test "x$OPENJDK_TARGET_OS" = xwindows; then
 294                 FREETYPE2_LIBS="$with_freetype/lib/freetype.lib"
 295             fi
 296             FREETYPE2_LIB_PATH="$with_freetype/lib"
 297             FREETYPE2_CFLAGS="-I$with_freetype/include"
 298             if test -s $with_freetype/include/ft2build.h && test -d $with_freetype/include/freetype2/freetype; then
 299                 FREETYPE2_CFLAGS="-I$with_freetype/include/freetype2 -I$with_freetype/include"
 300             fi
 301             FREETYPE2_FOUND=yes
 302             if test "x$FREETYPE2_FOUND" = xyes; then
 303                 # Verify that the directories exist 
 304                 if ! test -d "$with_freetype/lib" || ! test -d "$with_freetype/include"; then
 305                    AC_MSG_ERROR([Could not find the expected directories $with_freetype/lib and $with_freetype/include])
 306                 fi
 307                 # List the contents of the lib.
 308                 FREETYPELIB=`ls $with_freetype/lib/libfreetype.so $with_freetype/lib/freetype.dll 2> /dev/null`
 309                 if test "x$FREETYPELIB" = x; then
 310                    AC_MSG_ERROR([Could not find libfreetype.se nor freetype.dll in $with_freetype/lib])
 311                 fi
 312                 # Check one h-file
 313                 if ! test -s "$with_freetype/include/ft2build.h"; then
 314                    AC_MSG_ERROR([Could not find $with_freetype/include/ft2build.h])
 315                 fi
 316             fi
 317         fi
 318         if test "x$FREETYPE2_FOUND" = xno; then
 319             BDEPS_CHECK_MODULE(FREETYPE2, freetype2, xxx, [FREETYPE2_FOUND=yes], [FREETYPE2_FOUND=no])
 320             USING_SYSTEM_FT_LIB=true
 321         fi
 322         if test "x$FREETYPE2_FOUND" = xno; then
 323             PKG_CHECK_MODULES(FREETYPE2, freetype2, [FREETYPE2_FOUND=yes], [FREETYPE2_FOUND=no])
 324             USING_SYSTEM_FT_LIB=true
 325         fi
 326         if test "x$FREETYPE2_FOUND" = xno; then
 327             AC_MSG_CHECKING([for freetype in some standard locations])
 328         
 329             if test -s /usr/X11/include/ft2build.h && test -d /usr/X11/include/freetype2/freetype; then
 330                 DEFAULT_FREETYPE_CFLAGS="-I/usr/X11/include/freetype2 -I/usr/X11/include"
 331                 DEFAULT_FREETYPE_LIBS="-L/usr/X11/lib -lfreetype"
 332             fi
 333             if test -s /usr/include/ft2build.h && test -d /usr/include/freetype2/freetype; then
 334                 DEFAULT_FREETYPE_CFLAGS="-I/usr/include/freetype2"
 335                 DEFAULT_FREETYPE_LIBS="-lfreetype"
 336             fi
 337         
 338             PREV_CXXCFLAGS="$CXXFLAGS"
 339             PREV_LDFLAGS="$LDFLAGS"
 340             CXXFLAGS="$CXXFLAGS $DEFAULT_FREETYPE_CFLAGS"
 341             LDFLAGS="$LDFLAGS $DEFAULT_FREETYPE_LIBS"
 342             AC_LINK_IFELSE([AC_LANG_SOURCE([[#include<ft2build.h>
 343                             #include FT_FREETYPE_H 
 344                            int main() { return 0; }
 345                           ]])],
 346                           [
 347                               # Yes, the default cflags and libs did the trick.
 348                               FREETYPE2_FOUND=yes
 349                               FREETYPE2_CFLAGS="$DEFAULT_FREETYPE_CFLAGS"
 350                               FREETYPE2_LIBS="$DEFAULT_FREETYPE_LIBS"
 351                           ],
 352                           [
 353                               FREETYPE2_FOUND=no
 354                           ])
 355             CXXCFLAGS="$PREV_CXXFLAGS"
 356             LDFLAGS="$PREV_LDFLAGS"
 357             AC_MSG_RESULT([$FREETYPE2_FOUND])
 358             USING_SYSTEM_FT_LIB=true
 359         fi
 360         if test "x$FREETYPE2_FOUND" = xno; then
 361                 HELP_MSG_MISSING_DEPENDENCY([freetype2])
 362                 AC_MSG_ERROR([Could not find freetype2! $HELP_MSG ])
 363         fi    
 364 fi
 365 
 366 AC_SUBST(USING_SYSTEM_FT_LIB)
 367 AC_SUBST(FREETYPE2_LIB_PATH)
 368 AC_SUBST(FREETYPE2_CFLAGS)
 369 AC_SUBST(FREETYPE2_LIBS)
 370 
 371 ])
 372 
 373 AC_DEFUN_ONCE([LIB_SETUP_ALSA],
 374 [
 375 
 376 ###############################################################################
 377 #
 378 # Check for alsa headers and libraries. Used on Linux/GNU systems.
 379 #
 380 AC_ARG_WITH(alsa, [AS_HELP_STRING([--with-alsa],
 381         [specify prefix directory for the alsa package
 382          (expecting the libraries under PATH/lib and the headers under PATH/include)])])
 383 AC_ARG_WITH(alsa-include, [AS_HELP_STRING([--with-alsa-include],
 384         [specify directory for the alsa include files])])
 385 AC_ARG_WITH(alsa-lib, [AS_HELP_STRING([--with-alsa-lib],
 386         [specify directory for the alsa library])])
 387 
 388 if test "x$ALSA_NOT_NEEDED" = xyes; then
 389         if test "x${with_alsa}" != x || test "x${with_alsa_include}" != x || test "x${with_alsa_lib}" != x; then
 390                 AC_MSG_WARN([alsa not used, so --with-alsa is ignored])
 391         fi
 392         ALSA_CFLAGS=
 393         ALSA_LIBS=
 394 else
 395         ALSA_FOUND=no
 396 
 397         if test "x${with_alsa}" = xno || test "x${with_alsa_include}" = xno || test "x${with_alsa_lib}" = xno; then
 398             AC_MSG_ERROR([It is not possible to disable the use of alsa. Remove the --without-alsa option.])
 399         fi
 400 
 401         if test "x${with_alsa}" != x; then
 402             ALSA_LIBS="-L${with_alsa}/lib -lalsa"
 403             ALSA_CFLAGS="-I${with_alsa}/include"
 404             ALSA_FOUND=yes
 405         fi
 406         if test "x${with_alsa_include}" != x; then
 407             ALSA_CFLAGS="-I${with_alsa_include}"
 408             ALSA_FOUND=yes
 409         fi
 410         if test "x${with_alsa_lib}" != x; then
 411             ALSA_LIBS="-L${with_alsa_lib} -lalsa"
 412             ALSA_FOUND=yes
 413         fi
 414         if test "x$ALSA_FOUND" = xno; then
 415             BDEPS_CHECK_MODULE(ALSA, alsa, xxx, [ALSA_FOUND=yes], [ALSA_FOUND=no])
 416         fi
 417         if test "x$ALSA_FOUND" = xno; then
 418             PKG_CHECK_MODULES(ALSA, alsa, [ALSA_FOUND=yes], [ALSA_FOUND=no])
 419         fi
 420         if test "x$ALSA_FOUND" = xno; then
 421             AC_CHECK_HEADERS([alsa/asoundlib.h],
 422                              [ALSA_FOUND=yes
 423                               ALSA_CFLAGS=-Iignoreme
 424                               ALSA_LIBS=-lasound
 425                               DEFAULT_ALSA=yes],
 426                              [ALSA_FOUND=no])
 427         fi
 428         if test "x$ALSA_FOUND" = xno; then 
 429             HELP_MSG_MISSING_DEPENDENCY([alsa])
 430             AC_MSG_ERROR([Could not find alsa! $HELP_MSG ])
 431         fi    
 432 fi
 433 
 434 AC_SUBST(ALSA_CFLAGS)
 435 AC_SUBST(ALSA_LIBS)
 436 
 437 ])
 438 
 439 AC_DEFUN_ONCE([LIB_SETUP_MISC_LIBS],
 440 [
 441 
 442 ###############################################################################
 443 #
 444 # Check for the jpeg library
 445 #
 446 
 447 USE_EXTERNAL_LIBJPEG=true
 448 AC_CHECK_LIB(jpeg, main, [],
 449              [ USE_EXTERNAL_LIBJPEG=false
 450                AC_MSG_NOTICE([Will use jpeg decoder bundled with the OpenJDK source])
 451              ])
 452 AC_SUBST(USE_EXTERNAL_LIBJPEG)
 453         
 454 ###############################################################################
 455 #
 456 # Check for the gif library
 457 #
 458 
 459 USE_EXTERNAL_LIBJPEG=true
 460 AC_CHECK_LIB(gif, main, [],
 461              [ USE_EXTERNAL_LIBGIF=false
 462                AC_MSG_NOTICE([Will use gif decoder bundled with the OpenJDK source])
 463              ])
 464 AC_SUBST(USE_EXTERNAL_LIBGIF)
 465 
 466 ###############################################################################
 467 #
 468 # Check for the zlib library
 469 #
 470 
 471 AC_ARG_WITH(zlib, [AS_HELP_STRING([--with-zlib],
 472         [use zlib from build system or OpenJDK source (system, bundled) @<:@bundled@:>@])])
 473 
 474 AC_CHECK_LIB(z, compress,
 475              [ ZLIB_FOUND=yes ],
 476              [ ZLIB_FOUND=no ])
 477 
 478 AC_MSG_CHECKING([for which zlib to use])
 479 
 480 DEFAULT_ZLIB=bundled
 481 if test "x$OPENJDK_TARGET_OS" = xmacosx; then
 482 #
 483 # On macosx default is system...on others default is 
 484 #
 485     DEFAULT_ZLIB=system
 486 fi
 487 
 488 if test "x${ZLIB_FOUND}" != "xyes"; then
 489 #
 490 # If we don't find any system...set default to bundled
 491 #
 492     DEFAULT_ZLIB=bundled
 493 fi
 494 
 495 #
 496 # If user didn't specify, use DEFAULT_ZLIB
 497 #
 498 if test "x${with_zlib}" = "x"; then
 499     with_zlib=${DEFAULT_ZLIB}
 500 fi
 501 
 502 if test "x${with_zlib}" = "xbundled"; then
 503     USE_EXTERNAL_LIBZ=false
 504     AC_MSG_RESULT([bundled])
 505 elif test "x${with_zlib}" = "xsystem"; then
 506     if test "x${ZLIB_FOUND}" = "xyes"; then
 507         USE_EXTERNAL_LIBZ=true
 508         AC_MSG_RESULT([system])
 509     else
 510         AC_MSG_RESULT([system not found])
 511         AC_MSG_ERROR([--with-zlib=system specified, but no zlib found!])  
 512     fi
 513 else
 514     AC_MSG_ERROR([Invalid value for --with-zlib: ${with_zlib}, use 'system' or 'bundled'])  
 515 fi
 516 
 517 AC_SUBST(USE_EXTERNAL_LIBZ)
 518 
 519 ###############################################################################
 520 LIBZIP_CAN_USE_MMAP=true
 521 if test "x$JDK_VARIANT" = "xembedded"; then
 522    LIBZIP_CAN_USE_MMAP=false
 523 fi
 524 AC_SUBST(LIBZIP_CAN_USE_MMAP)
 525 
 526 ###############################################################################
 527 #
 528 # Check if altzone exists in time.h
 529 #
 530 
 531 AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <time.h>], [return (int)altzone;])],
 532             [has_altzone=yes],
 533             [has_altzone=no])
 534 if test "x$has_altzone" = xyes; then
 535     AC_DEFINE([HAVE_ALTZONE], 1, [Define if you have the external 'altzone' variable in time.h])
 536 fi
 537 
 538 ###############################################################################
 539 #
 540 # Check the maths library
 541 #
 542 
 543 AC_CHECK_LIB(m, cos, [],
 544              [ 
 545                   AC_MSG_NOTICE([Maths library was not found])
 546              ])
 547 AC_SUBST(LIBM)
 548 
 549 ###############################################################################
 550 #
 551 # Check for libdl.so
 552 
 553 save_LIBS="$LIBS"
 554 LIBS=""
 555 AC_CHECK_LIB(dl,dlopen)
 556 LIBDL="$LIBS"
 557 AC_SUBST(LIBDL)
 558 LIBS="$save_LIBS"
 559 
 560 ])
 561 
 562 AC_DEFUN_ONCE([LIB_SETUP_STATIC_LINK_LIBSTDCPP],
 563 [
 564 ###############################################################################
 565 #
 566 # statically link libstdc++ before C++ ABI is stablized on Linux unless 
 567 # dynamic build is configured on command line.
 568 #
 569 AC_ARG_ENABLE([static-link-stdc++], [AS_HELP_STRING([--disable-static-link-stdc++],
 570         [disable static linking of the C++ runtime on Linux @<:@enabled@:>@])],,
 571         [
 572                 enable_static_link_stdc__=yes
 573     ])
 574 
 575 if test "x$OPENJDK_TARGET_OS" = xlinux; then
 576     # Test if -lstdc++ works.
 577     AC_MSG_CHECKING([if dynamic link of stdc++ is possible])
 578     AC_LANG_PUSH(C++)
 579     OLD_CXXFLAGS="$CXXFLAGS"
 580     CXXFLAGS="$CXXFLAGS -lstdc++"
 581     AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])],
 582             [has_dynamic_libstdcxx=yes],
 583             [has_dynamic_libstdcxx=no])
 584     CXXFLAGS="$OLD_CXXFLAGS"
 585     AC_LANG_POP(C++)
 586     AC_MSG_RESULT([$has_dynamic_libstdcxx])
 587 
 588     # Test if stdc++ can be linked statically.
 589     AC_MSG_CHECKING([if static link of stdc++ is possible])
 590     STATIC_STDCXX_FLAGS="-Wl,-Bstatic -lstdc++ -lgcc -Wl,-Bdynamic"
 591     AC_LANG_PUSH(C++)
 592     OLD_LIBS="$LIBS"
 593     OLD_CXX="$CXX"
 594     LIBS="$STATIC_STDCXX_FLAGS"
 595     CXX="$CC"                       
 596     AC_LINK_IFELSE([AC_LANG_PROGRAM([], [return 0;])],
 597             [has_static_libstdcxx=yes],
 598             [has_static_libstdcxx=no])
 599     LIBS="$OLD_LIBS"
 600     CXX="$OLD_CXX"
 601     AC_LANG_POP(C++)
 602     AC_MSG_RESULT([$has_static_libstdcxx])
 603 
 604     if test "x$has_static_libcxx" = xno && test "x$has_dynamic_libcxx" = xno; then
 605         AC_MSG_ERROR([I cannot link to stdc++! Neither dynamically nor statically.])
 606     fi
 607 
 608     if test "x$enable_static_link_stdc__" = xyes && test "x$has_static_libstdcxx" = xno; then
 609         AC_MSG_NOTICE([Static linking of libstdc++ was not possible reverting to dynamic linking.])
 610         enable_static_link_stdc__=no
 611     fi
 612 
 613     if test "x$enable_static_link_stdc__" = xno && test "x$has_dynamic_libstdcxx" = xno; then
 614         AC_MSG_NOTICE([Dynamic linking of libstdc++ was not possible reverting to static linking.])
 615         enable_static_link_stdc__=yes
 616     fi
 617 
 618     AC_MSG_CHECKING([how to link with libstdc++])
 619     if test "x$enable_static_link_stdc__" = xyes; then
 620         LIBCXX="$LIBCXX $STATIC_STDCXX_FLAGS"
 621         LDCXX="$CC"
 622         AC_MSG_RESULT([static])
 623     else
 624         LIBCXX="$LIBCXX -lstdc++"
 625         LDCXX="$CXX"
 626         AC_MSG_RESULT([dynamic])
 627     fi
 628 fi
 629 
 630 # libCrun is the c++ runtime-library with SunStudio (roughly the equivalent of gcc's libstdc++.so)
 631 if test "x$OPENJDK_TARGET_OS" = xsolaris && test "x$LIBCXX" = x; then
 632     LIBCXX="/usr/lib${LEGACY_OPENJDK_TARGET_CPU3}/libCrun.so.1"
 633 fi
 634 
 635 # TODO better (platform agnostic) test
 636 if test "x$OPENJDK_TARGET_OS" = xmacosx && test "x$LIBCXX" = x && test "x$GCC" = xyes; then
 637     LIBCXX="-lstdc++"
 638 fi
 639 
 640 AC_SUBST(LIBCXX)
 641 
 642 ])