1 # 2 # Copyright (c) 2011, 2018, 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 m4_include([flags-cflags.m4]) 27 m4_include([flags-ldflags.m4]) 28 m4_include([flags-other.m4]) 29 30 ################################################################################ 31 # 32 # Setup ABI profile (for arm) 33 # 34 AC_DEFUN([FLAGS_SETUP_ABI_PROFILE], 35 [ 36 AC_ARG_WITH(abi-profile, [AS_HELP_STRING([--with-abi-profile], 37 [specify ABI profile for ARM builds (arm-vfp-sflt,arm-vfp-hflt,arm-sflt, armv5-vfp-sflt,armv6-vfp-hflt,arm64,aarch64) @<:@toolchain dependent@:>@ ])]) 38 39 if test "x$with_abi_profile" != x; then 40 if test "x$OPENJDK_TARGET_CPU" != xarm && \ 41 test "x$OPENJDK_TARGET_CPU" != xaarch64; then 42 AC_MSG_ERROR([--with-abi-profile only available on arm/aarch64]) 43 fi 44 45 OPENJDK_TARGET_ABI_PROFILE=$with_abi_profile 46 AC_MSG_CHECKING([for ABI profle]) 47 AC_MSG_RESULT([$OPENJDK_TARGET_ABI_PROFILE]) 48 49 if test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm-vfp-sflt; then 50 ARM_FLOAT_TYPE=vfp-sflt 51 ARM_ARCH_TYPE_FLAGS='-march=armv7-a -mthumb' 52 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm-vfp-hflt; then 53 ARM_FLOAT_TYPE=vfp-hflt 54 ARM_ARCH_TYPE_FLAGS='-march=armv7-a -mthumb' 55 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm-sflt; then 56 ARM_FLOAT_TYPE=sflt 57 ARM_ARCH_TYPE_FLAGS='-march=armv5t -marm' 58 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarmv5-vfp-sflt; then 59 ARM_FLOAT_TYPE=vfp-sflt 60 ARM_ARCH_TYPE_FLAGS='-march=armv5t -marm' 61 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarmv6-vfp-hflt; then 62 ARM_FLOAT_TYPE=vfp-hflt 63 ARM_ARCH_TYPE_FLAGS='-march=armv6 -marm' 64 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xarm64; then 65 # No special flags, just need to trigger setting JDK_ARCH_ABI_PROP_NAME 66 ARM_FLOAT_TYPE= 67 ARM_ARCH_TYPE_FLAGS= 68 elif test "x$OPENJDK_TARGET_ABI_PROFILE" = xaarch64; then 69 # No special flags, just need to trigger setting JDK_ARCH_ABI_PROP_NAME 70 ARM_FLOAT_TYPE= 71 ARM_ARCH_TYPE_FLAGS= 72 else 73 AC_MSG_ERROR([Invalid ABI profile: "$OPENJDK_TARGET_ABI_PROFILE"]) 74 fi 75 76 if test "x$ARM_FLOAT_TYPE" = xvfp-sflt; then 77 ARM_FLOAT_TYPE_FLAGS='-mfloat-abi=softfp -mfpu=vfp -DFLOAT_ARCH=-vfp-sflt' 78 elif test "x$ARM_FLOAT_TYPE" = xvfp-hflt; then 79 ARM_FLOAT_TYPE_FLAGS='-mfloat-abi=hard -mfpu=vfp -DFLOAT_ARCH=-vfp-hflt' 80 elif test "x$ARM_FLOAT_TYPE" = xsflt; then 81 ARM_FLOAT_TYPE_FLAGS='-msoft-float -mfpu=vfp' 82 fi 83 AC_MSG_CHECKING([for $ARM_FLOAT_TYPE floating point flags]) 84 AC_MSG_RESULT([$ARM_FLOAT_TYPE_FLAGS]) 85 86 AC_MSG_CHECKING([for arch type flags]) 87 AC_MSG_RESULT([$ARM_ARCH_TYPE_FLAGS]) 88 89 # Now set JDK_ARCH_ABI_PROP_NAME. This is equivalent to the last part of the 90 # autoconf target triplet. 91 [ JDK_ARCH_ABI_PROP_NAME=`$ECHO $OPENJDK_TARGET_AUTOCONF_NAME | $SED -e 's/.*-\([^-]*\)$/\1/'` ] 92 # Sanity check that it is a known ABI. 93 if test "x$JDK_ARCH_ABI_PROP_NAME" != xgnu && \ 94 test "x$JDK_ARCH_ABI_PROP_NAME" != xgnueabi && \ 95 test "x$JDK_ARCH_ABI_PROP_NAME" != xgnueabihf; then 96 AC_MSG_WARN([Unknown autoconf target triplet ABI: "$JDK_ARCH_ABI_PROP_NAME"]) 97 fi 98 AC_MSG_CHECKING([for ABI property name]) 99 AC_MSG_RESULT([$JDK_ARCH_ABI_PROP_NAME]) 100 AC_SUBST(JDK_ARCH_ABI_PROP_NAME) 101 fi 102 103 # When building with an abi profile, the name of that profile is appended on the 104 # bundle platform, which is used in bundle names. 105 if test "x$OPENJDK_TARGET_ABI_PROFILE" != x; then 106 OPENJDK_TARGET_BUNDLE_PLATFORM="$OPENJDK_TARGET_OS_BUNDLE-$OPENJDK_TARGET_ABI_PROFILE" 107 fi 108 ]) 109 110 AC_DEFUN([FLAGS_SETUP_MACOSX_VERSION], 111 [ 112 # Additional macosx handling 113 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 114 # MACOSX_VERSION_MIN specifies the lowest version of Macosx that the built 115 # binaries should be compatible with, even if compiled on a newer version 116 # of the OS. It currently has a hard coded value. Setting this also limits 117 # exposure to API changes in header files. Bumping this is likely to 118 # require code changes to build. 119 MACOSX_VERSION_MIN=10.7.0 120 MACOSX_VERSION_MIN_NODOTS=${MACOSX_VERSION_MIN//\./} 121 122 AC_SUBST(MACOSX_VERSION_MIN) 123 124 # Setting --with-macosx-version-max=<version> makes it an error to build or 125 # link to macosx APIs that are newer than the given OS version. The expected 126 # format for <version> is either nn.n.n or nn.nn.nn. See /usr/include/AvailabilityMacros.h. 127 AC_ARG_WITH([macosx-version-max], [AS_HELP_STRING([--with-macosx-version-max], 128 [error on use of newer functionality. @<:@macosx@:>@])], 129 [ 130 if echo "$with_macosx_version_max" | $GREP -q "^[[0-9]][[0-9]]\.[[0-9]]\.[[0-9]]\$"; then 131 MACOSX_VERSION_MAX=$with_macosx_version_max 132 elif echo "$with_macosx_version_max" | $GREP -q "^[[0-9]][[0-9]]\.[[0-9]][[0-9]]\.[[0-9]][[0-9]]\$"; then 133 MACOSX_VERSION_MAX=$with_macosx_version_max 134 elif test "x$with_macosx_version_max" = "xno"; then 135 # Use build system default 136 MACOSX_VERSION_MAX= 137 else 138 AC_MSG_ERROR([osx version format must be nn.n.n or nn.nn.nn]) 139 fi 140 ], 141 [MACOSX_VERSION_MAX=] 142 ) 143 MACOSX_VERSION_MAX_NODOTS=${MACOSX_VERSION_MAX//\./} 144 145 AC_SUBST(MACOSX_VERSION_MAX) 146 fi 147 ]) 148 149 # Reset the global CFLAGS/LDFLAGS variables and initialize them with the 150 # corresponding configure arguments instead 151 AC_DEFUN_ONCE([FLAGS_SETUP_USER_SUPPLIED_FLAGS], 152 [ 153 if test "x$CFLAGS" != "x"; then 154 AC_MSG_WARN([Ignoring CFLAGS($CFLAGS) found in environment. Use --with-extra-cflags]) 155 fi 156 157 if test "x$CXXFLAGS" != "x"; then 158 AC_MSG_WARN([Ignoring CXXFLAGS($CXXFLAGS) found in environment. Use --with-extra-cxxflags]) 159 fi 160 161 if test "x$LDFLAGS" != "x"; then 162 AC_MSG_WARN([Ignoring LDFLAGS($LDFLAGS) found in environment. Use --with-extra-ldflags]) 163 fi 164 165 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags], 166 [extra flags to be used when compiling jdk c-files])]) 167 168 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags], 169 [extra flags to be used when compiling jdk c++-files])]) 170 171 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags], 172 [extra flags to be used when linking jdk])]) 173 174 USER_CFLAGS="$with_extra_cflags" 175 USER_CXXFLAGS="$with_extra_cxxflags" 176 USER_LDFLAGS="$with_extra_ldflags" 177 ]) 178 179 # Setup the sysroot flags and add them to global CFLAGS and LDFLAGS so 180 # that configure can use them while detecting compilers. 181 # TOOLCHAIN_TYPE is available here. 182 # Param 1 - Optional prefix to all variables. (e.g BUILD_) 183 AC_DEFUN([FLAGS_SETUP_SYSROOT_FLAGS], 184 [ 185 if test "x[$]$1SYSROOT" != "x"; then 186 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 187 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 188 # Solaris Studio does not have a concept of sysroot. Instead we must 189 # make sure the default include and lib dirs are appended to each 190 # compile and link command line. Must also add -I-xbuiltin to enable 191 # inlining of system functions and intrinsics. 192 $1SYSROOT_CFLAGS="-I-xbuiltin -I[$]$1SYSROOT/usr/include" 193 $1SYSROOT_LDFLAGS="-L[$]$1SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \ 194 -L[$]$1SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR" 195 # If the devkit contains the ld linker, make sure we use it. 196 AC_PATH_PROG(SOLARIS_LD, ld, , $DEVKIT_TOOLCHAIN_PATH:$DEVKIT_EXTRA_PATH) 197 # Make sure this ld is runnable. 198 if test -f "$SOLARIS_LD"; then 199 if "$SOLARIS_LD" -V > /dev/null 2> /dev/null; then 200 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -Yl,$(dirname $SOLARIS_LD)" 201 else 202 AC_MSG_WARN([Could not run $SOLARIS_LD found in devkit, reverting to system ld]) 203 fi 204 fi 205 fi 206 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 207 $1SYSROOT_CFLAGS="--sysroot=[$]$1SYSROOT" 208 $1SYSROOT_LDFLAGS="--sysroot=[$]$1SYSROOT" 209 elif test "x$TOOLCHAIN_TYPE" = xclang; then 210 $1SYSROOT_CFLAGS="-isysroot [$]$1SYSROOT" 211 $1SYSROOT_LDFLAGS="-isysroot [$]$1SYSROOT" 212 fi 213 fi 214 215 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 216 # We also need -iframework<path>/System/Library/Frameworks 217 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks" 218 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks" 219 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework 220 # set this here so it doesn't have to be peppered throughout the forest 221 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 222 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 223 fi 224 225 AC_SUBST($1SYSROOT_CFLAGS) 226 AC_SUBST($1SYSROOT_LDFLAGS) 227 ]) 228 229 AC_DEFUN_ONCE([FLAGS_PRE_TOOLCHAIN], 230 [ 231 # We should always include user supplied flags 232 FLAGS_SETUP_USER_SUPPLIED_FLAGS 233 # The sysroot flags are needed for configure to be able to run the compilers 234 FLAGS_SETUP_SYSROOT_FLAGS 235 236 if test "x$TOOLCHAIN_TYPE" = xxlc; then 237 MACHINE_FLAG="-q${OPENJDK_TARGET_CPU_BITS}" 238 elif test "x$TOOLCHAIN_TYPE" != xmicrosoft; then 239 if test "x$OPENJDK_TARGET_CPU" != xaarch64 && 240 test "x$OPENJDK_TARGET_CPU" != xarm && 241 test "x$OPENJDK_TARGET_CPU" != xmips && 242 test "x$OPENJDK_TARGET_CPU" != xmipsel && 243 test "x$OPENJDK_TARGET_CPU" != xmips64 && 244 test "x$OPENJDK_TARGET_CPU" != xmips64el; then 245 MACHINE_FLAG="-m${OPENJDK_TARGET_CPU_BITS}" 246 fi 247 fi 248 249 # FIXME: global flags are not used yet... 250 # The "global" flags will *always* be set. Without them, it is not possible to 251 # get a working compilation. 252 GLOBAL_CFLAGS="$MACHINE_FLAG $SYSROOT_CFLAGS $USER_CFLAGS" 253 GLOBAL_CXXFLAGS="$MACHINE_FLAG $SYSROOT_CFLAGS $USER_CXXFLAGS" 254 GLOBAL_LDFLAGS="$MACHINE_FLAG $SYSROOT_LDFLAGS $USER_LDFLAGS" 255 # FIXME: Don't really know how to do with this, but this was the old behavior 256 GLOBAL_CPPFLAGS="$SYSROOT_CFLAGS" 257 AC_SUBST(GLOBAL_CFLAGS) 258 AC_SUBST(GLOBAL_CXXFLAGS) 259 AC_SUBST(GLOBAL_LDFLAGS) 260 AC_SUBST(GLOBAL_CPPFLAGS) 261 262 # FIXME: For compatilibity, export this as EXTRA_CFLAGS for now. 263 EXTRA_CFLAGS="$MACHINE_FLAG $USER_CFLAGS" 264 EXTRA_CXXFLAGS="$MACHINE_FLAG $USER_CXXFLAGS" 265 EXTRA_LDFLAGS="$MACHINE_FLAG $USER_LDFLAGS" 266 267 AC_SUBST(EXTRA_CFLAGS) 268 AC_SUBST(EXTRA_CXXFLAGS) 269 AC_SUBST(EXTRA_LDFLAGS) 270 271 # For autoconf testing to work, the global flags must also be stored in the 272 # "unnamed" CFLAGS etc. 273 CFLAGS="$GLOBAL_CFLAGS" 274 CXXFLAGS="$GLOBAL_CXXFLAGS" 275 LDFLAGS="$GLOBAL_LDFLAGS" 276 CPPFLAGS="$GLOBAL_CPPFLAGS" 277 ]) 278 279 AC_DEFUN([FLAGS_SETUP_TOOLCHAIN_CONTROL], 280 [ 281 # COMPILER_TARGET_BITS_FLAG : option for selecting 32- or 64-bit output 282 # COMPILER_COMMAND_FILE_FLAG : option for passing a command file to the compiler 283 # COMPILER_BINDCMD_FILE_FLAG : option for specifying a file which saves the binder 284 # commands produced by the link step (currently AIX only) 285 if test "x$TOOLCHAIN_TYPE" = xxlc; then 286 COMPILER_TARGET_BITS_FLAG="-q" 287 COMPILER_COMMAND_FILE_FLAG="-f" 288 COMPILER_BINDCMD_FILE_FLAG="-bloadmap:" 289 else 290 COMPILER_TARGET_BITS_FLAG="-m" 291 COMPILER_COMMAND_FILE_FLAG="@" 292 COMPILER_BINDCMD_FILE_FLAG="" 293 294 # The solstudio linker does not support @-files. 295 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 296 COMPILER_COMMAND_FILE_FLAG= 297 fi 298 299 # Check if @file is supported by gcc 300 if test "x$TOOLCHAIN_TYPE" = xgcc; then 301 AC_MSG_CHECKING([if @file is supported by gcc]) 302 # Extra emtpy "" to prevent ECHO from interpreting '--version' as argument 303 $ECHO "" "--version" > command.file 304 if $CXX @command.file 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then 305 AC_MSG_RESULT(yes) 306 COMPILER_COMMAND_FILE_FLAG="@" 307 else 308 AC_MSG_RESULT(no) 309 COMPILER_COMMAND_FILE_FLAG= 310 fi 311 $RM command.file 312 fi 313 fi 314 315 AC_SUBST(COMPILER_TARGET_BITS_FLAG) 316 AC_SUBST(COMPILER_COMMAND_FILE_FLAG) 317 AC_SUBST(COMPILER_BINDCMD_FILE_FLAG) 318 319 # Check that the compiler supports -mX (or -qX on AIX) flags 320 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does 321 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}], 322 IF_TRUE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true], 323 IF_FALSE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false]) 324 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG) 325 326 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 327 CC_OUT_OPTION=-Fo 328 EXE_OUT_OPTION=-out: 329 LD_OUT_OPTION=-out: 330 AR_OUT_OPTION=-out: 331 else 332 # The option used to specify the target .o,.a or .so file. 333 # When compiling, how to specify the to be created object file. 334 CC_OUT_OPTION='-o$(SPACE)' 335 # When linking, how to specify the to be created executable. 336 EXE_OUT_OPTION='-o$(SPACE)' 337 # When linking, how to specify the to be created dynamically linkable library. 338 LD_OUT_OPTION='-o$(SPACE)' 339 # When archiving, how to specify the to be create static archive for object files. 340 AR_OUT_OPTION='rcs$(SPACE)' 341 fi 342 AC_SUBST(CC_OUT_OPTION) 343 AC_SUBST(EXE_OUT_OPTION) 344 AC_SUBST(LD_OUT_OPTION) 345 AC_SUBST(AR_OUT_OPTION) 346 347 # Generate make dependency files 348 if test "x$TOOLCHAIN_TYPE" = xgcc; then 349 C_FLAG_DEPS="-MMD -MF" 350 elif test "x$TOOLCHAIN_TYPE" = xclang; then 351 C_FLAG_DEPS="-MMD -MF" 352 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 353 C_FLAG_DEPS="-xMMD -xMF" 354 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 355 C_FLAG_DEPS="-qmakedep=gcc -MF" 356 fi 357 CXX_FLAG_DEPS="$C_FLAG_DEPS" 358 AC_SUBST(C_FLAG_DEPS) 359 AC_SUBST(CXX_FLAG_DEPS) 360 ]) 361 362 AC_DEFUN_ONCE([FLAGS_POST_TOOLCHAIN], 363 [ 364 FLAGS_SETUP_TOOLCHAIN_CONTROL 365 366 if test "x$BUILD_SYSROOT" != x; then 367 FLAGS_SETUP_SYSROOT_FLAGS([BUILD_]) 368 else 369 if test "x$COMPILE_TYPE" != "xcross"; then 370 BUILD_SYSROOT_CFLAGS="$SYSROOT_CFLAGS" 371 BUILD_SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS" 372 fi 373 fi 374 AC_SUBST(BUILD_SYSROOT_CFLAGS) 375 AC_SUBST(BUILD_SYSROOT_LDFLAGS) 376 377 ]) 378 379 AC_DEFUN([FLAGS_SETUP_FLAGS], 380 [ 381 FLAGS_SETUP_MACOSX_VERSION 382 FLAGS_SETUP_ABI_PROFILE 383 384 FLAGS_SETUP_SHARED_LIBS 385 FLAGS_SETUP_DEBUG_SYMBOLS 386 FLAGS_SETUP_WARNINGS 387 FLAGS_SETUP_QUALITY_CHECKS 388 FLAGS_SETUP_OPTIMIZATION 389 390 FLAGS_SETUP_CFLAGS 391 FLAGS_SETUP_LDFLAGS 392 393 FLAGS_SETUP_ARFLAGS 394 FLAGS_SETUP_STRIPFLAGS 395 FLAGS_SETUP_RCFLAGS 396 397 FLAGS_SETUP_ASFLAGS 398 FLAGS_SETUP_ASFLAGS_CPU_DEP([TARGET]) 399 FLAGS_SETUP_ASFLAGS_CPU_DEP([BUILD], [OPENJDK_BUILD_]) 400 ]) 401 402 # FLAGS_C_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 403 # IF_FALSE: [RUN-IF-FALSE]) 404 # ------------------------------------------------------------ 405 # Check that the C compiler supports an argument 406 BASIC_DEFUN_NAMED([FLAGS_C_COMPILER_CHECK_ARGUMENTS], 407 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 408 [ 409 AC_MSG_CHECKING([if the C compiler supports "ARG_ARGUMENT"]) 410 supports=yes 411 412 saved_cflags="$CFLAGS" 413 CFLAGS="$CFLAGS ARG_ARGUMENT" 414 AC_LANG_PUSH([C]) 415 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 416 [supports=no]) 417 AC_LANG_POP([C]) 418 CFLAGS="$saved_cflags" 419 420 AC_MSG_RESULT([$supports]) 421 if test "x$supports" = "xyes" ; then 422 : 423 ARG_IF_TRUE 424 else 425 : 426 ARG_IF_FALSE 427 fi 428 ]) 429 430 # FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 431 # IF_FALSE: [RUN-IF-FALSE]) 432 # ------------------------------------------------------------ 433 # Check that the C++ compiler supports an argument 434 BASIC_DEFUN_NAMED([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS], 435 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 436 [ 437 AC_MSG_CHECKING([if the C++ compiler supports "ARG_ARGUMENT"]) 438 supports=yes 439 440 saved_cxxflags="$CXXFLAGS" 441 CXXFLAGS="$CXXFLAG ARG_ARGUMENT" 442 AC_LANG_PUSH([C++]) 443 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 444 [supports=no]) 445 AC_LANG_POP([C++]) 446 CXXFLAGS="$saved_cxxflags" 447 448 AC_MSG_RESULT([$supports]) 449 if test "x$supports" = "xyes" ; then 450 : 451 ARG_IF_TRUE 452 else 453 : 454 ARG_IF_FALSE 455 fi 456 ]) 457 458 # FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 459 # IF_FALSE: [RUN-IF-FALSE]) 460 # ------------------------------------------------------------ 461 # Check that the C and C++ compilers support an argument 462 BASIC_DEFUN_NAMED([FLAGS_COMPILER_CHECK_ARGUMENTS], 463 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 464 [ 465 FLAGS_C_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARG_ARGUMENT], 466 IF_TRUE: [C_COMP_SUPPORTS="yes"], 467 IF_FALSE: [C_COMP_SUPPORTS="no"]) 468 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARG_ARGUMENT], 469 IF_TRUE: [CXX_COMP_SUPPORTS="yes"], 470 IF_FALSE: [CXX_COMP_SUPPORTS="no"]) 471 472 AC_MSG_CHECKING([if both compilers support "ARG_ARGUMENT"]) 473 supports=no 474 if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then supports=yes; fi 475 476 AC_MSG_RESULT([$supports]) 477 if test "x$supports" = "xyes" ; then 478 : 479 ARG_IF_TRUE 480 else 481 : 482 ARG_IF_FALSE 483 fi 484 ]) 485 486 # FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 487 # IF_FALSE: [RUN-IF-FALSE]) 488 # ------------------------------------------------------------ 489 # Check that the linker support an argument 490 BASIC_DEFUN_NAMED([FLAGS_LINKER_CHECK_ARGUMENTS], 491 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 492 [ 493 AC_MSG_CHECKING([if linker supports "ARG_ARGUMENT"]) 494 supports=yes 495 496 saved_ldflags="$LDFLAGS" 497 LDFLAGS="$LDFLAGS ARG_ARGUMENT" 498 AC_LANG_PUSH([C]) 499 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], 500 [], [supports=no]) 501 AC_LANG_POP([C]) 502 LDFLAGS="$saved_ldflags" 503 504 AC_MSG_RESULT([$supports]) 505 if test "x$supports" = "xyes" ; then 506 : 507 ARG_IF_TRUE 508 else 509 : 510 ARG_IF_FALSE 511 fi 512 ])