Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | dnl Copyright (C) 1999-2005 Open Source Telecom Corporation. |
| 2 | dnl Copyright (C) 2006-2010 David Sugar, Tycho Softworks. |
| 3 | dnl |
| 4 | dnl This program is free software; you can redistribute it and/or modify |
| 5 | dnl it under the terms of the GNU General Public License as published by |
| 6 | dnl the Free Software Foundation; either version 2 of the License, or |
| 7 | dnl (at your option) any later version. |
| 8 | dnl |
| 9 | dnl This program is distributed in the hope that it will be useful, |
| 10 | dnl but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | dnl GNU General Public License for more details. |
| 13 | dnl |
| 14 | dnl You should have received a copy of the GNU General Public License |
| 15 | dnl along with this program; if not, write to the Free Software |
| 16 | dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | dnl |
| 18 | dnl As a special exception to the GNU General Public License, if you |
| 19 | dnl distribute this file as part of a program that contains a configuration |
| 20 | dnl script generated by Autoconf, you may include it under the same |
| 21 | dnl distribution terms that you use for the rest of that program. |
| 22 | |
| 23 | |
| 24 | AC_DEFUN([OST_CXX_PROGRAMMING],[ |
| 25 | AC_REQUIRE([OST_PROG_CC_POSIX]) |
| 26 | AC_PROG_CPP |
| 27 | AC_PROG_CXX |
| 28 | AC_PROG_CXXCPP |
| 29 | |
| 30 | dnl |
| 31 | dnl Check for common C++ portability problems |
| 32 | dnl |
| 33 | |
| 34 | AC_LANG_SAVE |
| 35 | ac_save_CXXFLAGS="$CXXFLAGS" |
| 36 | CXXFLAGS="" |
| 37 | AC_LANG_CPLUSPLUS |
| 38 | |
| 39 | dnl Check whether we have bool |
| 40 | AC_CACHE_CHECK(whether ${CXX} has built-in bool type, |
| 41 | ac_cv_cxx_bool_type, |
| 42 | AC_TRY_COMPILE(, |
| 43 | [bool b1=true; bool b2=false;], |
| 44 | ac_cv_cxx_bool_type=yes, |
| 45 | ac_cv_cxx_bool_type=no |
| 46 | ) |
| 47 | ) |
| 48 | |
| 49 | if test $ac_cv_cxx_bool_type = yes ; then |
| 50 | AC_DEFINE(HAVE_BOOL_TYPE, [1], [have bool type]) |
| 51 | fi |
| 52 | |
| 53 | AC_LANG_RESTORE |
| 54 | CXXFLAGS="$ac_save_CXXFLAGS" |
| 55 | AH_BOTTOM([ |
| 56 | #ifndef HAVE_BOOL_TYPE |
| 57 | typedef enum { true=1, false=0 } bool; |
| 58 | #endif |
| 59 | |
| 60 | |
| 61 | ]) |
| 62 | ]) |
| 63 | |
| 64 | AC_DEFUN([OST_CXX_NEW_INIT],[ |
| 65 | AC_REQUIRE([OST_PROG_CC_POSIX]) |
| 66 | # AC_PROG_CPP |
| 67 | # AC_PROG_CXX |
| 68 | # AC_PROG_CXXCPP |
| 69 | |
| 70 | dnl |
| 71 | dnl Check for common C++ portability problems |
| 72 | dnl |
| 73 | |
| 74 | AC_LANG_SAVE |
| 75 | ac_save_CXXFLAGS="$CXXFLAGS" |
| 76 | CXXFLAGS="" |
| 77 | AC_LANG_CPLUSPLUS |
| 78 | |
| 79 | dnl Check whether we have bool |
| 80 | AC_CACHE_CHECK([whether ${CXX} has new(size_t,void*)], |
| 81 | ac_cv_cxx_new_init, |
| 82 | AC_TRY_COMPILE([#include <new> |
| 83 | #include <iostream> |
| 84 | using namespace std;], |
| 85 | [int* p1 = new int(); |
| 86 | int* p2 = new (p1) int(); |
| 87 | return 0;], |
| 88 | ac_cv_cxx_new_init=yes, |
| 89 | ac_cv_cxx_new_init=no |
| 90 | ) |
| 91 | ) |
| 92 | |
| 93 | if test $ac_cv_cxx_new_init = yes ; then |
| 94 | AC_DEFINE(CCXX_HAVE_NEW_INIT, [1], [have new with init]) |
| 95 | fi |
| 96 | |
| 97 | AC_LANG_RESTORE |
| 98 | CXXFLAGS="$ac_save_CXXFLAGS" |
| 99 | AH_BOTTOM([ |
| 100 | #ifdef CCXX_NAMESPACES |
| 101 | #define USING(x) using namespace x; |
| 102 | #else |
| 103 | #define USING(x) |
| 104 | #endif |
| 105 | |
| 106 | #ifdef __KCC |
| 107 | #define KAI_NONSTD_IOSTREAM 1 |
| 108 | #endif |
| 109 | ]) |
| 110 | ]) |
| 111 | |
| 112 | AC_DEFUN([OST_CXX_ARRAYS],[ |
| 113 | AC_REQUIRE([OST_CXX_PROGRAMMING]) |
| 114 | dnl |
| 115 | dnl Determine C++ support for dynamic sized arrays in stack frame. |
| 116 | dnl |
| 117 | |
| 118 | AC_LANG_SAVE |
| 119 | AC_LANG_CPLUSPLUS |
| 120 | ac_save_CXXFLAGS="$CXXFLAGS" |
| 121 | CXXFLAGS="" |
| 122 | |
| 123 | AC_CACHE_CHECK(wheather dynamic arrays in stack frame, |
| 124 | ost_cv_cxx_array, |
| 125 | AC_TRY_COMPILE(,[ |
| 126 | int x; |
| 127 | int y\[x\]; |
| 128 | return 0; |
| 129 | ], ost_cv_cxx_array=no, ost_cv_array=yes) |
| 130 | ) |
| 131 | if test "$ost_cv_cxx_array" = yes ; then |
| 132 | AC_DEFINE(HAVE_DYN_ARRAY, [1], [c++ dynamic arrays in stack frame]) |
| 133 | fi |
| 134 | AC_LANG_RESTORE |
| 135 | CXXFLAGS="$ac_save_CXXFLAGS" |
| 136 | ]) |
| 137 | |
| 138 | AC_DEFUN([OST_CXX_IOSTREAM],[ |
| 139 | AC_REQUIRE([OST_CXX_PROGRAMMING]) |
| 140 | dnl |
| 141 | dnl Determine kind of C++ iostream support. |
| 142 | dnl |
| 143 | |
| 144 | AC_LANG_SAVE |
| 145 | ac_save_CXXFLAGS="$CXXFLAGS" |
| 146 | CXXFLAGS="" |
| 147 | AC_LANG_CPLUSPLUS |
| 148 | AC_CACHE_CHECK(wheather old style iostreams, |
| 149 | ost_cv_cxx_iostream, |
| 150 | AC_TRY_COMPILE([ |
| 151 | #include <iostream> |
| 152 | using namespace std; |
| 153 | |
| 154 | class mystr : public streambuf, public iostream |
| 155 | { |
| 156 | mystr(); |
| 157 | }; |
| 158 | |
| 159 | mystr::mystr() : streambuf(), iostream((streambuf *)this) |
| 160 | { |
| 161 | } |
| 162 | ],[return 0;], |
| 163 | ost_cv_cxx_iostream=no, |
| 164 | ost_cv_cxx_iostream=yes |
| 165 | ) |
| 166 | ) |
| 167 | if test $ost_cv_cxx_iostream = yes ; then |
| 168 | AC_DEFINE(HAVE_OLD_IOSTREAM, [1], [old style iostreams]) |
| 169 | fi |
| 170 | AC_CHECK_HEADERS(sstream) |
| 171 | |
| 172 | AC_LANG_RESTORE |
| 173 | CXXFLAGS="$ac_save_CXXFLAGS" |
| 174 | ]) |
| 175 | |
| 176 | AC_DEFUN([OST_CXX_NAMESPACE],[ |
| 177 | AC_REQUIRE([OST_CXX_PROGRAMMING]) |
| 178 | |
| 179 | dnl |
| 180 | dnl Determine if C++ supports namespaces. |
| 181 | dnl |
| 182 | |
| 183 | AC_LANG_SAVE |
| 184 | ac_save_CXXFLAGS="$CXXFLAGS" |
| 185 | CXXFLAGS="" |
| 186 | AC_LANG_CPLUSPLUS |
| 187 | AC_CACHE_CHECK(whether ${CXX} supports namespace, |
| 188 | ost_cv_cxx_namespace, |
| 189 | AC_TRY_COMPILE([ |
| 190 | #include <iostream> |
| 191 | namespace Test { using namespace std; }],[return 0;], |
| 192 | ost_cv_cxx_namespace=yes, |
| 193 | ost_cv_cxx_namespace=no |
| 194 | ) |
| 195 | ) |
| 196 | |
| 197 | if test "$ost_cv_cxx_namespace" = yes ; then |
| 198 | AC_DEFINE(CCXX_NAMESPACES, [1], [has c++ namespaces]) |
| 199 | fi |
| 200 | |
| 201 | AC_LANG_RESTORE |
| 202 | CXXFLAGS="$ac_save_CXXFLAGS" |
| 203 | ]) |
| 204 | |
| 205 | AC_DEFUN([OST_CXX_MUTABLE],[ |
| 206 | AC_REQUIRE([OST_CXX_PROGRAMMING]) |
| 207 | |
| 208 | dnl |
| 209 | dnl Determine if C++ supports mutable members. |
| 210 | dnl |
| 211 | |
| 212 | AC_LANG_SAVE |
| 213 | ac_save_CXXFLAGS="$CXXFLAGS" |
| 214 | CXXFLAGS="" |
| 215 | AC_LANG_CPLUSPLUS |
| 216 | |
| 217 | AC_CACHE_CHECK(whether ${CXX} supports mutable, |
| 218 | ost_cv_cxx_mutable, |
| 219 | AC_TRY_COMPILE([ |
| 220 | class t {mutable int i;};], [return 0;], |
| 221 | ost_cv_cxx_mutable=yes, |
| 222 | ost_cv_cxx_mutable=no |
| 223 | ) |
| 224 | ) |
| 225 | |
| 226 | if test $ost_cv_cxx_mutable = no ; then |
| 227 | COMMON_FLAGS="$COMMON_FLAGS -Dmutable" |
| 228 | fi |
| 229 | |
| 230 | AC_LANG_RESTORE |
| 231 | CXXFLAGS="$ac_save_CXXFLAGS" |
| 232 | ]) |
| 233 | |
| 234 | AC_DEFUN([OST_CXX_NOEXCEPTIONS],[ |
| 235 | AC_REQUIRE([OST_CXX_PROGRAMMING]) |
| 236 | |
| 237 | dnl |
| 238 | dnl Disable C++ exception handling whenever possible. |
| 239 | dnl |
| 240 | |
| 241 | AC_LANG_SAVE |
| 242 | ac_save_CXXFLAGS="$CXXFLAGS" |
| 243 | CXXFLAGS="" |
| 244 | AC_LANG_CPLUSPLUS |
| 245 | |
| 246 | dnl strip -fexceptions flag if used |
| 247 | optflags=$CXXFLAGS |
| 248 | if test ! -z "$optflags" ; then |
| 249 | CXXFLAGS="" |
| 250 | for opt in $optflags ; do |
| 251 | case $opt in |
| 252 | *rtti*) |
| 253 | ;; |
| 254 | *exceptions*) |
| 255 | ;; |
| 256 | *) |
| 257 | CXXFLAGS="$CXXFLAGS $opt" |
| 258 | ;; |
| 259 | esac |
| 260 | done |
| 261 | fi |
| 262 | AC_CACHE_CHECK(whether ${CXX} supports -fno-exceptions, |
| 263 | ac_cv_cxx_noexception_flag,[ |
| 264 | echo 'void f(){}' >conftest.cpp |
| 265 | if test -z "`${CXX} -fno-exceptions -c conftest.cpp 2>&1`"; then |
| 266 | COMMON_FLAGS="$COMMON_FLAGS -fno-exceptions" |
| 267 | ac_cv_cxx_noexception_flag=yes |
| 268 | else |
| 269 | ac_cv_cxx_noexception_flag=no |
| 270 | fi |
| 271 | rm -f conftest* |
| 272 | ]) |
| 273 | |
| 274 | AC_CACHE_CHECK(whether ${CXX} supports -fno-rtti, |
| 275 | ac_cv_cxx_no_rtti_flag,[ |
| 276 | echo '#include <sstream>' >conftest.cpp |
| 277 | echo 'void f(){}' >>conftest.cpp |
| 278 | if test -z "`${CXX} -fno-rtti -c conftest.cpp 2>&1`"; then |
| 279 | COMMON_FLAGS="$COMMON_FLAGS -fno-rtti" |
| 280 | ac_cv_cxx_no_rtti_flag=yes |
| 281 | else |
| 282 | ac_cv_cxx_no_rtti_flag=no |
| 283 | fi |
| 284 | rm -f conftest* |
| 285 | ]) |
| 286 | |
| 287 | AC_CACHE_CHECK(whether ${CXX} supports -fno-check-new, |
| 288 | ac_cv_cxx_no_check_new_flag,[ |
| 289 | echo 'void f(){}' >conftest.cpp |
| 290 | if test -z "`${CXX} -fno-check-new -c conftest.cpp 2>&1`"; then |
| 291 | COMMON_FLAGS="$COMMON_FLAGS -fno-check-new" |
| 292 | ac_cv_cxx_no_check_new_flag=yes |
| 293 | else |
| 294 | ac_cv_cxx_no_check_new_flag=no |
| 295 | fi |
| 296 | rm -f conftest* |
| 297 | ]) |
| 298 | |
| 299 | AC_CACHE_CHECK(whether ${CXX} supports -finline, |
| 300 | ac_cv_cxx_inline_flag,[ |
| 301 | echo 'void f(){}' >conftest.cpp |
| 302 | if test -z "`${CXX} -finline -c conftest.cpp 2>&1`"; then |
| 303 | COMMON_FLAGS="$COMMON_FLAGS -finline" |
| 304 | ac_cv_cxx_inline_flag=yes |
| 305 | else |
| 306 | ac_cv_cxx_inline_flag=no |
| 307 | fi |
| 308 | rm -f conftest* |
| 309 | ]) |
| 310 | |
| 311 | |
| 312 | AC_LANG_RESTORE |
| 313 | CXXFLAGS="$ac_save_CXXFLAGS" |
| 314 | ]) |
| 315 | |
| 316 | AC_DEFUN([OST_CXX_EXCEPTIONS],[ |
| 317 | AC_REQUIRE([OST_CXX_PROGRAMMING]) |
| 318 | |
| 319 | dnl |
| 320 | dnl Enable C++ exception handling whenever possible. |
| 321 | dnl |
| 322 | |
| 323 | AC_LANG_SAVE |
| 324 | ac_save_CXXFLAGS="$CXXFLAGS" |
| 325 | CXXFLAGS="" |
| 326 | AC_LANG_CPLUSPLUS |
| 327 | |
| 328 | dnl strip -fno-exceptions flag if used |
| 329 | optflags=$CXXFLAGS |
| 330 | if test ! -z "$optflags" ; then |
| 331 | CXXFLAGS="" |
| 332 | for opt in $optflags ; do |
| 333 | case $opt in |
| 334 | *no-rtti*) |
| 335 | ;; |
| 336 | *omit-frame-pointer*) |
| 337 | ;; |
| 338 | *no-exceptions*) |
| 339 | ;; |
| 340 | *) |
| 341 | CXXFLAGS="$CXXFLAGS $opt" |
| 342 | ;; |
| 343 | esac |
| 344 | done |
| 345 | fi |
| 346 | |
| 347 | dnl Check for exception handling |
| 348 | AC_CACHE_CHECK(whether ${CXX} supports -fhandle-exceptions, |
| 349 | ac_cv_cxx_exception_flag,[ |
| 350 | echo 'void f(){}' >conftest.cpp |
| 351 | if test -z "`${CXX} -fhandle-exceptions -c conftest.cpp 2>&1`"; then |
| 352 | ac_cv_cxx_exception_flag=yes |
| 353 | COMMON_FLAGS="$COMMON_FLAGS -fhandle-exceptions" |
| 354 | else |
| 355 | ac_cv_cxx_exception_flag=no |
| 356 | fi |
| 357 | rm -f conftest* |
| 358 | ]) |
| 359 | |
| 360 | if test $ac_cv_cxx_exception_flag = "yes" ; then |
| 361 | ac_cv_cxx_exception_handling=yes |
| 362 | else |
| 363 | AC_CACHE_CHECK(whether ${CXX} supports exception handling, |
| 364 | ac_cv_cxx_exception_handling, |
| 365 | AC_TRY_COMPILE( |
| 366 | [void f(void) |
| 367 | { |
| 368 | throw "abc"; |
| 369 | } |
| 370 | void g(void) |
| 371 | { |
| 372 | try { |
| 373 | f(); |
| 374 | } |
| 375 | catch(char*){} |
| 376 | } |
| 377 | ],, |
| 378 | ac_cv_cxx_exception_handling=yes, |
| 379 | ac_cv_cxx_exception_handling=no |
| 380 | ) |
| 381 | ) |
| 382 | fi |
| 383 | |
| 384 | if test $ac_cv_cxx_exception_handling = yes ; then |
| 385 | AC_DEFINE(CCXX_EXCEPTIONS, [1], [has c++ exception handling]) |
| 386 | AC_CHECK_HEADERS(exception) |
| 387 | fi |
| 388 | |
| 389 | AC_LANG_RESTORE |
| 390 | CXXFLAGS="$ac_save_CXXFLAGS" |
| 391 | AH_BOTTOM([ |
| 392 | #ifndef CCXX_EXCEPTIONS |
| 393 | /* disable HAVE_EXCEPTION */ |
| 394 | #ifdef HAVE_EXCEPTION |
| 395 | #undef HAVE_EXCEPTION |
| 396 | #endif |
| 397 | /* throw - replacement to throw an exception */ |
| 398 | #define THROW(x) abort() |
| 399 | /* throw - replacement to declare an exception */ |
| 400 | #define THROWS(x) |
| 401 | /* throw - for empty list */ |
| 402 | #define NEW_THROWS |
| 403 | #define THROWS_EMPTY |
| 404 | /* |
| 405 | * work around dangeling if/else combinations: |
| 406 | */ |
| 407 | #else |
| 408 | #define THROW(x) throw x |
| 409 | #define THROWS(x) throw(x) |
| 410 | #define NEW_THROWS throw() |
| 411 | #define THROWS_EMPTY throw() |
| 412 | #endif |
| 413 | |
| 414 | ]) |
| 415 | ]) |
| 416 | |