Overview
| Comment: | Nicer checking for atomic ops. |
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| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
5950e1c6a6e258d6f17d8ad9a4f09a6c |
| User & Date: | js on 2010-01-30 11:56:37 |
| Other Links: | manifest | tags |
Context
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2010-01-30
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| 11:58 | Add -march=i486 to OBJCFLAGS in objfw-config if required. check-in: 0ec98003aa user: js tags: trunk | |
| 11:56 | Nicer checking for atomic ops. check-in: 5950e1c6a6 user: js tags: trunk | |
| 10:47 | Check return value of of_spinlock_*. check-in: 8a97fac06f user: js tags: trunk | |
Changes
Modified configure.ac from [2dac0a970f] to [899b5f2c89].
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179 180 181 182 183 184 185 186 187 188 189 190 191 | AC_SUBST(THREADING_H, "threading.h") AC_CHECK_FUNC(objc_sync_enter,, [ AC_SUBST(OBJC_SYNC_M, "objc_sync.m") AC_DEFINE(NEED_OBJC_SYNC_INIT, 1, [Whether objc_sync_init needs to be called])]) AC_TRY_LINK([#include <stdint.h>], [ int32_t i, j; if (__sync_add_and_fetch(&i, 1)) j = __sync_sub_and_fetch(&i, 1); while (!__sync_bool_compare_and_swap(&i, 0, 1)); ], [ | > > > > | > | | | | < < < < < < < < | > | | | | > > | 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 | AC_SUBST(THREADING_H, "threading.h") AC_CHECK_FUNC(objc_sync_enter,, [ AC_SUBST(OBJC_SYNC_M, "objc_sync.m") AC_DEFINE(NEED_OBJC_SYNC_INIT, 1, [Whether objc_sync_init needs to be called])]) atomic_ops="none" AC_MSG_CHECKING(whether __sync_* works) AC_TRY_LINK([#include <stdint.h>], [ int32_t i, j; if (__sync_add_and_fetch(&i, 1)) j = __sync_sub_and_fetch(&i, 1); while (!__sync_bool_compare_and_swap(&i, 0, 1)); ], [ AC_MSG_RESULT(yes) atomic_ops="gcc builtins" AC_DEFINE(OF_HAVE_GCC_ATOMIC_OPS, 1, [Whether gcc atomic operations are available]) ], [ old_OBJCFLAGS="$OBJCFLAGS" OBJCFLAGS="$OBJCFLAGS -march=i486" AC_TRY_LINK([#include <stdint.h>], [ int32_t i, j; if (__sync_add_and_fetch(&i, 1)) j = __sync_sub_and_fetch(&i, 1); while (!__sync_bool_compare_and_swap(&i, 0, 1)); ], [ AC_MSG_RESULT(yes, with -march=i486) atomic_ops="gcc builtins (with -march=i486)" AC_DEFINE(OF_HAVE_GCC_ATOMIC_OPS, 1, [Whether gcc atomic operations are available]) ], [ AC_MSG_RESULT(no) OBJCFLAGS="$old_OBJCFLAGS"])]) if test x"$atomic_ops" = x"none"; then AC_CHECK_HEADER(libkern/OSAtomic.h, [ atomic_ops="libkern/OSAtomic.h" AC_DEFINE(OF_HAVE_LIBKERN_OSATOMIC_H, 1, [Whether we have libkern/OSAtomic.h])]) fi else dnl We can only have one thread - therefore everything is atomic atomic_ops="not needed" fi AC_MSG_CHECKING(for atomic operations) if test x"$atomic_ops" != x"none"; then AC_DEFINE(OF_ATOMIC_OPS, 1, [Whether we have atomic operations]) fi AC_MSG_RESULT($atomic_ops) AC_CHECK_LIB(socket, socket, LIBS="$LIBS -lsocket") AC_CHECK_LIB(ws2_32, main, LIBS="$LIBS -lws2_32") AC_MSG_CHECKING(for getaddrinfo) AC_TRY_COMPILE([ #include <stddef.h> |
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