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=10.9.0 120 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 if test "x$ASFLAGS" != "x"; then 166 AC_MSG_WARN([Ignoring ASFLAGS($ASFLAGS) found in environment. Use --with-extra-asflags]) 167 fi 168 169 AC_ARG_WITH(extra-cflags, [AS_HELP_STRING([--with-extra-cflags], 170 [extra flags to be used when compiling jdk c-files])]) 171 172 AC_ARG_WITH(extra-cxxflags, [AS_HELP_STRING([--with-extra-cxxflags], 173 [extra flags to be used when compiling jdk c++-files])]) 174 175 AC_ARG_WITH(extra-ldflags, [AS_HELP_STRING([--with-extra-ldflags], 176 [extra flags to be used when linking jdk])]) 177 178 AC_ARG_WITH(extra-asflags, [AS_HELP_STRING([--with-extra-asflags], 179 [extra flags to be passed to the assembler])]) 180 181 USER_CFLAGS="$with_extra_cflags" 182 USER_CXXFLAGS="$with_extra_cxxflags" 183 USER_LDFLAGS="$with_extra_ldflags" 184 USER_ASFLAGS="$with_extra_asflags" 185 ]) 186 187 # Setup the sysroot flags and add them to global CFLAGS and LDFLAGS so 188 # that configure can use them while detecting compilers. 189 # TOOLCHAIN_TYPE is available here. 190 # Param 1 - Optional prefix to all variables. (e.g BUILD_) 191 AC_DEFUN([FLAGS_SETUP_SYSROOT_FLAGS], 192 [ 193 if test "x[$]$1SYSROOT" != "x"; then 194 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 195 if test "x$OPENJDK_TARGET_OS" = xsolaris; then 196 # Solaris Studio does not have a concept of sysroot. Instead we must 197 # make sure the default include and lib dirs are appended to each 198 # compile and link command line. Must also add -I-xbuiltin to enable 199 # inlining of system functions and intrinsics. 200 $1SYSROOT_CFLAGS="-I-xbuiltin -I[$]$1SYSROOT/usr/include" 201 $1SYSROOT_LDFLAGS="-L[$]$1SYSROOT/usr/lib$OPENJDK_TARGET_CPU_ISADIR \ 202 -L[$]$1SYSROOT/lib$OPENJDK_TARGET_CPU_ISADIR" 203 # If the devkit contains the ld linker, make sure we use it. 204 AC_PATH_PROG(SOLARIS_LD, ld, , $DEVKIT_TOOLCHAIN_PATH:$DEVKIT_EXTRA_PATH) 205 # Make sure this ld is runnable. 206 if test -f "$SOLARIS_LD"; then 207 if "$SOLARIS_LD" -V > /dev/null 2> /dev/null; then 208 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -Yl,$(dirname $SOLARIS_LD)" 209 else 210 AC_MSG_WARN([Could not run $SOLARIS_LD found in devkit, reverting to system ld]) 211 fi 212 fi 213 fi 214 elif test "x$TOOLCHAIN_TYPE" = xgcc; then 215 $1SYSROOT_CFLAGS="--sysroot=[$]$1SYSROOT" 216 $1SYSROOT_LDFLAGS="--sysroot=[$]$1SYSROOT" 217 elif test "x$TOOLCHAIN_TYPE" = xclang; then 218 $1SYSROOT_CFLAGS="-isysroot [$]$1SYSROOT" 219 $1SYSROOT_LDFLAGS="-isysroot [$]$1SYSROOT" 220 fi 221 fi 222 223 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 224 # We also need -iframework<path>/System/Library/Frameworks 225 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks" 226 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -iframework [$]$1SYSROOT/System/Library/Frameworks" 227 # These always need to be set, or we can't find the frameworks embedded in JavaVM.framework 228 # set this here so it doesn't have to be peppered throughout the forest 229 $1SYSROOT_CFLAGS="[$]$1SYSROOT_CFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 230 $1SYSROOT_LDFLAGS="[$]$1SYSROOT_LDFLAGS -F [$]$1SYSROOT/System/Library/Frameworks/JavaVM.framework/Frameworks" 231 fi 232 233 AC_SUBST($1SYSROOT_CFLAGS) 234 AC_SUBST($1SYSROOT_LDFLAGS) 235 ]) 236 237 AC_DEFUN_ONCE([FLAGS_PRE_TOOLCHAIN], 238 [ 239 # We should always include user supplied flags 240 FLAGS_SETUP_USER_SUPPLIED_FLAGS 241 # The sysroot flags are needed for configure to be able to run the compilers 242 FLAGS_SETUP_SYSROOT_FLAGS 243 244 # For solstudio and xlc, the word size flag is required for correct behavior. 245 # For clang/gcc, the flag is only strictly required for reduced builds, but 246 # set it always where possible (x86, sparc and ppc). 247 if test "x$TOOLCHAIN_TYPE" = xxlc; then 248 MACHINE_FLAG="-q${OPENJDK_TARGET_CPU_BITS}" 249 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 250 MACHINE_FLAG="-m${OPENJDK_TARGET_CPU_BITS}" 251 elif test "x$TOOLCHAIN_TYPE" = xgcc || test "x$TOOLCHAIN_TYPE" = xclang; then 252 if test "x$OPENJDK_TARGET_CPU_ARCH" = xx86 || 253 test "x$OPENJDK_TARGET_CPU_ARCH" = xsparc || 254 test "x$OPENJDK_TARGET_CPU_ARCH" = xppc; then 255 MACHINE_FLAG="-m${OPENJDK_TARGET_CPU_BITS}" 256 fi 257 fi 258 259 # FIXME: global flags are not used yet... 260 # The "global" flags will *always* be set. Without them, it is not possible to 261 # get a working compilation. 262 GLOBAL_CFLAGS="$MACHINE_FLAG $SYSROOT_CFLAGS $USER_CFLAGS" 263 GLOBAL_CXXFLAGS="$MACHINE_FLAG $SYSROOT_CFLAGS $USER_CXXFLAGS" 264 GLOBAL_LDFLAGS="$MACHINE_FLAG $SYSROOT_LDFLAGS $USER_LDFLAGS" 265 # FIXME: Don't really know how to do with this, but this was the old behavior 266 GLOBAL_CPPFLAGS="$SYSROOT_CFLAGS" 267 AC_SUBST(GLOBAL_CFLAGS) 268 AC_SUBST(GLOBAL_CXXFLAGS) 269 AC_SUBST(GLOBAL_LDFLAGS) 270 AC_SUBST(GLOBAL_CPPFLAGS) 271 272 # FIXME: For compatilibity, export this as EXTRA_CFLAGS for now. 273 EXTRA_CFLAGS="$MACHINE_FLAG $USER_CFLAGS" 274 EXTRA_CXXFLAGS="$MACHINE_FLAG $USER_CXXFLAGS" 275 EXTRA_LDFLAGS="$MACHINE_FLAG $USER_LDFLAGS" 276 EXTRA_ASFLAGS="$USER_ASFLAGS" 277 278 AC_SUBST(EXTRA_CFLAGS) 279 AC_SUBST(EXTRA_CXXFLAGS) 280 AC_SUBST(EXTRA_LDFLAGS) 281 AC_SUBST(EXTRA_ASFLAGS) 282 283 # For autoconf testing to work, the global flags must also be stored in the 284 # "unnamed" CFLAGS etc. 285 CFLAGS="$GLOBAL_CFLAGS" 286 CXXFLAGS="$GLOBAL_CXXFLAGS" 287 LDFLAGS="$GLOBAL_LDFLAGS" 288 CPPFLAGS="$GLOBAL_CPPFLAGS" 289 ]) 290 291 AC_DEFUN([FLAGS_SETUP_TOOLCHAIN_CONTROL], 292 [ 293 # COMPILER_TARGET_BITS_FLAG : option for selecting 32- or 64-bit output 294 # COMPILER_COMMAND_FILE_FLAG : option for passing a command file to the compiler 295 # COMPILER_BINDCMD_FILE_FLAG : option for specifying a file which saves the binder 296 # commands produced by the link step (currently AIX only) 297 if test "x$TOOLCHAIN_TYPE" = xxlc; then 298 COMPILER_TARGET_BITS_FLAG="-q" 299 COMPILER_COMMAND_FILE_FLAG="-f" 300 COMPILER_BINDCMD_FILE_FLAG="-bloadmap:" 301 else 302 COMPILER_TARGET_BITS_FLAG="-m" 303 COMPILER_COMMAND_FILE_FLAG="@" 304 COMPILER_BINDCMD_FILE_FLAG="" 305 306 # The solstudio linker does not support @-files. 307 if test "x$TOOLCHAIN_TYPE" = xsolstudio; then 308 COMPILER_COMMAND_FILE_FLAG= 309 fi 310 311 # Check if @file is supported by gcc 312 if test "x$TOOLCHAIN_TYPE" = xgcc; then 313 AC_MSG_CHECKING([if @file is supported by gcc]) 314 # Extra emtpy "" to prevent ECHO from interpreting '--version' as argument 315 $ECHO "" "--version" > command.file 316 if $CXX @command.file 2>&AS_MESSAGE_LOG_FD >&AS_MESSAGE_LOG_FD; then 317 AC_MSG_RESULT(yes) 318 COMPILER_COMMAND_FILE_FLAG="@" 319 else 320 AC_MSG_RESULT(no) 321 COMPILER_COMMAND_FILE_FLAG= 322 fi 323 $RM command.file 324 fi 325 fi 326 327 AC_SUBST(COMPILER_TARGET_BITS_FLAG) 328 AC_SUBST(COMPILER_COMMAND_FILE_FLAG) 329 AC_SUBST(COMPILER_BINDCMD_FILE_FLAG) 330 331 # Check that the compiler supports -mX (or -qX on AIX) flags 332 # Set COMPILER_SUPPORTS_TARGET_BITS_FLAG to 'true' if it does 333 FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [${COMPILER_TARGET_BITS_FLAG}${OPENJDK_TARGET_CPU_BITS}], 334 IF_TRUE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=true], 335 IF_FALSE: [COMPILER_SUPPORTS_TARGET_BITS_FLAG=false]) 336 AC_SUBST(COMPILER_SUPPORTS_TARGET_BITS_FLAG) 337 338 if test "x$TOOLCHAIN_TYPE" = xmicrosoft; then 339 CC_OUT_OPTION=-Fo 340 LD_OUT_OPTION=-out: 341 AR_OUT_OPTION=-out: 342 else 343 # The option used to specify the target .o,.a or .so file. 344 # When compiling, how to specify the to be created object file. 345 CC_OUT_OPTION='-o$(SPACE)' 346 # When linking, how to specify the output 347 LD_OUT_OPTION='-o$(SPACE)' 348 # When archiving, how to specify the destination static archive. 349 if test "x$OPENJDK_TARGET_OS" = xmacosx; then 350 AR_OUT_OPTION='-r -cs$(SPACE)' 351 else 352 AR_OUT_OPTION='-rcs$(SPACE)' 353 fi 354 fi 355 AC_SUBST(CC_OUT_OPTION) 356 AC_SUBST(LD_OUT_OPTION) 357 AC_SUBST(AR_OUT_OPTION) 358 359 # Generate make dependency files 360 if test "x$TOOLCHAIN_TYPE" = xgcc; then 361 C_FLAG_DEPS="-MMD -MF" 362 elif test "x$TOOLCHAIN_TYPE" = xclang; then 363 C_FLAG_DEPS="-MMD -MF" 364 elif test "x$TOOLCHAIN_TYPE" = xsolstudio; then 365 C_FLAG_DEPS="-xMMD -xMF" 366 elif test "x$TOOLCHAIN_TYPE" = xxlc; then 367 C_FLAG_DEPS="-qmakedep=gcc -MF" 368 fi 369 CXX_FLAG_DEPS="$C_FLAG_DEPS" 370 AC_SUBST(C_FLAG_DEPS) 371 AC_SUBST(CXX_FLAG_DEPS) 372 ]) 373 374 AC_DEFUN_ONCE([FLAGS_POST_TOOLCHAIN], 375 [ 376 FLAGS_SETUP_TOOLCHAIN_CONTROL 377 378 if test "x$BUILD_SYSROOT" != x; then 379 FLAGS_SETUP_SYSROOT_FLAGS([BUILD_]) 380 else 381 if test "x$COMPILE_TYPE" != "xcross"; then 382 BUILD_SYSROOT_CFLAGS="$SYSROOT_CFLAGS" 383 BUILD_SYSROOT_LDFLAGS="$SYSROOT_LDFLAGS" 384 fi 385 fi 386 AC_SUBST(BUILD_SYSROOT_CFLAGS) 387 AC_SUBST(BUILD_SYSROOT_LDFLAGS) 388 389 ]) 390 391 AC_DEFUN([FLAGS_SETUP_FLAGS], 392 [ 393 FLAGS_SETUP_MACOSX_VERSION 394 FLAGS_SETUP_ABI_PROFILE 395 396 FLAGS_SETUP_SHARED_LIBS 397 FLAGS_SETUP_DEBUG_SYMBOLS 398 FLAGS_SETUP_WARNINGS 399 FLAGS_SETUP_QUALITY_CHECKS 400 FLAGS_SETUP_OPTIMIZATION 401 402 FLAGS_SETUP_CFLAGS 403 FLAGS_SETUP_LDFLAGS 404 405 FLAGS_SETUP_ARFLAGS 406 FLAGS_SETUP_STRIPFLAGS 407 FLAGS_SETUP_RCFLAGS 408 409 FLAGS_SETUP_ASFLAGS 410 FLAGS_SETUP_ASFLAGS_CPU_DEP([TARGET]) 411 FLAGS_SETUP_ASFLAGS_CPU_DEP([BUILD], [OPENJDK_BUILD_]) 412 ]) 413 414 # FLAGS_C_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 415 # IF_FALSE: [RUN-IF-FALSE]) 416 # ------------------------------------------------------------ 417 # Check that the C compiler supports an argument 418 BASIC_DEFUN_NAMED([FLAGS_C_COMPILER_CHECK_ARGUMENTS], 419 [*ARGUMENT IF_TRUE IF_FALSE PREFIX], [$@], 420 [ 421 AC_MSG_CHECKING([if ARG_PREFIX[CC] supports "ARG_ARGUMENT"]) 422 supports=yes 423 424 saved_cflags="$CFLAGS" 425 saved_cc="$CC" 426 CFLAGS="$CFLAGS ARG_ARGUMENT" 427 CC="$ARG_PREFIX[CC]" 428 AC_LANG_PUSH([C]) 429 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 430 [supports=no]) 431 AC_LANG_POP([C]) 432 CC="$saved_cc" 433 CFLAGS="$saved_cflags" 434 435 AC_MSG_RESULT([$supports]) 436 if test "x$supports" = "xyes" ; then 437 : 438 ARG_IF_TRUE 439 else 440 : 441 ARG_IF_FALSE 442 fi 443 ]) 444 445 # FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 446 # IF_FALSE: [RUN-IF-FALSE]) 447 # ------------------------------------------------------------ 448 # Check that the C++ compiler supports an argument 449 BASIC_DEFUN_NAMED([FLAGS_CXX_COMPILER_CHECK_ARGUMENTS], 450 [*ARGUMENT IF_TRUE IF_FALSE PREFIX], [$@], 451 [ 452 AC_MSG_CHECKING([if ARG_PREFIX[CXX] supports "ARG_ARGUMENT"]) 453 supports=yes 454 455 saved_cxxflags="$CXXFLAGS" 456 saved_cxx="$CXX" 457 CXXFLAGS="$CXXFLAG ARG_ARGUMENT" 458 CXX="$ARG_PREFIX[CXX]" 459 AC_LANG_PUSH([C++]) 460 AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int i;]])], [], 461 [supports=no]) 462 AC_LANG_POP([C++]) 463 CXX="$saved_cxx" 464 CXXFLAGS="$saved_cxxflags" 465 466 AC_MSG_RESULT([$supports]) 467 if test "x$supports" = "xyes" ; then 468 : 469 ARG_IF_TRUE 470 else 471 : 472 ARG_IF_FALSE 473 fi 474 ]) 475 476 # FLAGS_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 477 # IF_FALSE: [RUN-IF-FALSE]) 478 # ------------------------------------------------------------ 479 # Check that the C and C++ compilers support an argument 480 BASIC_DEFUN_NAMED([FLAGS_COMPILER_CHECK_ARGUMENTS], 481 [*ARGUMENT IF_TRUE IF_FALSE PREFIX], [$@], 482 [ 483 FLAGS_C_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARG_ARGUMENT], 484 IF_TRUE: [C_COMP_SUPPORTS="yes"], 485 IF_FALSE: [C_COMP_SUPPORTS="no"], 486 PREFIX: [ARG_PREFIX]) 487 FLAGS_CXX_COMPILER_CHECK_ARGUMENTS(ARGUMENT: [ARG_ARGUMENT], 488 IF_TRUE: [CXX_COMP_SUPPORTS="yes"], 489 IF_FALSE: [CXX_COMP_SUPPORTS="no"], 490 PREFIX: [ARG_PREFIX]) 491 492 AC_MSG_CHECKING([if both ARG_PREFIX[CC] and ARG_PREFIX[CXX] support "ARG_ARGUMENT"]) 493 supports=no 494 if test "x$C_COMP_SUPPORTS" = "xyes" -a "x$CXX_COMP_SUPPORTS" = "xyes"; then 495 supports=yes; 496 fi 497 498 AC_MSG_RESULT([$supports]) 499 if test "x$supports" = "xyes" ; then 500 : 501 ARG_IF_TRUE 502 else 503 : 504 ARG_IF_FALSE 505 fi 506 ]) 507 508 # FLAGS_LINKER_CHECK_ARGUMENTS(ARGUMENT: [ARGUMENT], IF_TRUE: [RUN-IF-TRUE], 509 # IF_FALSE: [RUN-IF-FALSE]) 510 # ------------------------------------------------------------ 511 # Check that the linker support an argument 512 BASIC_DEFUN_NAMED([FLAGS_LINKER_CHECK_ARGUMENTS], 513 [*ARGUMENT IF_TRUE IF_FALSE], [$@], 514 [ 515 AC_MSG_CHECKING([if linker supports "ARG_ARGUMENT"]) 516 supports=yes 517 518 saved_ldflags="$LDFLAGS" 519 LDFLAGS="$LDFLAGS ARG_ARGUMENT" 520 AC_LANG_PUSH([C]) 521 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])], 522 [], [supports=no]) 523 AC_LANG_POP([C]) 524 LDFLAGS="$saved_ldflags" 525 526 AC_MSG_RESULT([$supports]) 527 if test "x$supports" = "xyes" ; then 528 : 529 ARG_IF_TRUE 530 else 531 : 532 ARG_IF_FALSE 533 fi 534 ])