} # ac_fn_c_try_cpp
-# ac_fn_c_try_run LINENO
-# ----------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
-# that executables *can* be run.
-ac_fn_c_try_run ()
-{
- as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
- if { { ac_try="$ac_link"
-case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
- (eval "$ac_link") 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
- { { case "(($ac_try" in
- *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
- *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-$as_echo "$ac_try_echo"; } >&5
- (eval "$ac_try") 2>&5
- ac_status=$?
- $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
- test $ac_status = 0; }; }; then :
- ac_retval=0
-else
- $as_echo "$as_me: program exited with status $ac_status" >&5
- $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- ac_retval=$ac_status
-fi
- rm -rf conftest.dSYM conftest_ipa8_conftest.oo
- eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
- as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_run
-
# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
# -------------------------------------------------------
# Tests whether HEADER exists, giving a warning if it cannot be compiled using
} # ac_fn_c_check_header_mongrel
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ if { { ac_try="$ac_link"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_link") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+ { { case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_try") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then :
+ ac_retval=0
+else
+ $as_echo "$as_me: program exited with status $ac_status" >&5
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_retval=$ac_status
+fi
+ rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+ as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
# -------------------------------------------------------
# Tests whether HEADER exists and can be compiled using the include files in
fi
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if compiler has atomic builtins" >&5
-$as_echo_n "checking if compiler has atomic builtins... " >&6; }
-
-INTEL_ATOMIC_BUILTINS=no
-C11_ATOMIC_BUILTINS=no
-
-if test "x$GCC" = "xno"; then :
-
- GCC_VERSION="$($CC -dumpversion)"
- GCC_VERSION_MAJOR="$(echo $INTEL_VERSION | cut -d'.' -f1)"
- GCC_VERSION_MINOR="$(echo $INTEL_VERSION | cut -d'.' -f2)"
-
- if test $GCC_VERSION_MAJOR > 4; then :
-
- if test $GCC_VERSION_MINOR > 1; then :
- INTEL_ATOMIC_BUILTINS=yes
-else
- INTEL_ATOMIC_BUILTINS=no
-fi
-
-else
- INTEL_ATOMIC_BUILTINS=no
-fi
-
-else
-
-
- ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
-
-
- if test "$cross_compiling" = yes; then :
- INTEL_ATOMIC_BUILTINS=no
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-int main()
-{
- unsigned long val = 1010, tmp, *mem = &val;
-
- if (__sync_fetch_and_add(&val, 1010) != 1010 || val != 2020)
- return 1;
-
- tmp = val;
-
- if (__sync_fetch_and_sub(mem, 1010) != tmp || val != 1010)
- return 1;
-
- if (__sync_sub_and_fetch(&val, 1010) != 0 || val != 0)
- return 1;
-
- tmp = 3030;
-
- if (__sync_val_compare_and_swap(mem, 0, tmp) != 0 || val != tmp)
- return 1;
-
- if (__sync_lock_test_and_set(&val, 4040) != 3030)
- return 1;
-
- mem = &tmp;
-
- if (__sync_val_compare_and_swap(&mem, &tmp, &val) != &tmp)
- return 1;
-
- __sync_synchronize();
-
- if (mem != &val)
- return 1;
-
- return 0;
-}
-
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
- INTEL_ATOMIC_BUILTINS=yes
-else
- INTEL_ATOMIC_BUILTINS=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
- conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-
- if test "x$INTEL_ATOMIC_BUILTINS" = "xno"; then :
-
- if test "$cross_compiling" = yes; then :
- C11_ATOMIC_BUILTINS=no
-else
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-#include <stdatomic.h>
-int main()
-{
- __Atomic unsigned long val = 1010, tmp, *mem = &val;
-
- if (atomic_fetch_add(&val, 1010) != 1010 || val != 2020)
- return 1;
-
- tmp = val;
-
- if (atomic_fetch_sub(mem, 1010) != tmp || val != 1010)
- return 1;
-
- return 0;
-}
-
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
- C11_ATOMIC_BUILTINS=yes
-else
- C11_ATOMIC_BUILTINS=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
- conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-
-fi
-
-fi
-
-ATOMIC_BUILTINS="no"
-
-if test "x$INTEL_ATOMIC_BUILTINS" = "xyes"; then :
-
-
-$as_echo "#define HAVE_ATOMIC_BUILTINS 1" >>confdefs.h
-
-
-$as_echo "#define HAVE_ATOMIC_BUILTINS_INTEL 1" >>confdefs.h
-
- ATOMIC_BUILTINS="Intel"
-
-fi
-
-if test "x$C11_ATOMIC_BUILTINS" = "xyes"; then :
-
-
-$as_echo "#define HAVE_ATOMIC_BUILTINS 1" >>confdefs.h
-
-
-$as_echo "#define HAVE_ATOMIC_BUILTINS_C11 1" >>confdefs.h
-
- ATOMIC_BUILTINS="C11"
-
-fi
-
-if test "x$ATOMIC_BUILTINS" != "xno"; then :
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ATOMIC_BUILTINS" >&5
-$as_echo "$ATOMIC_BUILTINS" >&6; }
-else
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
MORECFLAGS="-pipe -Wall -Wextra -Wno-unused-value -Wno-unused-parameter -Wno-missing-field-initializers"
if test "x$GCC" = "xyes"; then :
fi
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
if ${ac_cv_path_GREP+:} false; then :
cat << _EOF_
Configuration:
- Atomic builtins support: ${ATOMIC_BUILTINS}
OpenSSL support: ${OPENSSL}
Examples: ${EXAMPLES}
+++ /dev/null
-dnl ax_check_atomic_builtins.m4 - Check for atomic builtins
-
-dnl Based on Apache libapr's check
-dnl http://svn.apache.org/viewvc/apr/apr/trunk/configure.in?revision=1214516
-
-dnl Patrick McFarland <pmcfarland@adterrasperaspera.com>
-
-AC_DEFUN([AX_CHECK_ATOMIC_BUILTINS],[
-AC_MSG_CHECKING([if compiler has atomic builtins])
-
-INTEL_ATOMIC_BUILTINS=no
-C11_ATOMIC_BUILTINS=no
-
-dnl Check if compiler is a new enough GCC to avoid compile due to cross compiling
-AS_IF([test "x$GCC" = "xno"],[
- GCC_VERSION="$($CC -dumpversion)"
- GCC_VERSION_MAJOR="$(echo $INTEL_VERSION | cut -d'.' -f1)"
- GCC_VERSION_MINOR="$(echo $INTEL_VERSION | cut -d'.' -f2)"
-
- AS_IF([test $GCC_VERSION_MAJOR > 4], [
- AS_IF([test $GCC_VERSION_MINOR > 1], [INTEL_ATOMIC_BUILTINS=yes], [INTEL_ATOMIC_BUILTINS=no])
- ], [INTEL_ATOMIC_BUILTINS=no])
-], [
-
-dnl Check if compiler supports Intel atomic builtins
- AC_LANG([C])
-
- AC_RUN_IFELSE([AC_LANG_SOURCE([
-int main()
-{
- unsigned long val = 1010, tmp, *mem = &val;
-
- if (__sync_fetch_and_add(&val, 1010) != 1010 || val != 2020)
- return 1;
-
- tmp = val;
-
- if (__sync_fetch_and_sub(mem, 1010) != tmp || val != 1010)
- return 1;
-
- if (__sync_sub_and_fetch(&val, 1010) != 0 || val != 0)
- return 1;
-
- tmp = 3030;
-
- if (__sync_val_compare_and_swap(mem, 0, tmp) != 0 || val != tmp)
- return 1;
-
- if (__sync_lock_test_and_set(&val, 4040) != 3030)
- return 1;
-
- mem = &tmp;
-
- if (__sync_val_compare_and_swap(&mem, &tmp, &val) != &tmp)
- return 1;
-
- __sync_synchronize();
-
- if (mem != &val)
- return 1;
-
- return 0;
-}
- ])], [INTEL_ATOMIC_BUILTINS=yes], [INTEL_ATOMIC_BUILTINS=no], [INTEL_ATOMIC_BUILTINS=no])
-
-dnl Check if compiler supports C11 atomic builtins
- AS_IF([test "x$INTEL_ATOMIC_BUILTINS" = "xno"], [
- AC_RUN_IFELSE([AC_LANG_SOURCE([
-#include <stdatomic.h>
-int main()
-{
- __Atomic unsigned long val = 1010, tmp, *mem = &val;
-
- if (atomic_fetch_add(&val, 1010) != 1010 || val != 2020)
- return 1;
-
- tmp = val;
-
- if (atomic_fetch_sub(mem, 1010) != tmp || val != 1010)
- return 1;
-
- return 0;
-}
- ])], [C11_ATOMIC_BUILTINS=yes], [C11_ATOMIC_BUILTINS=no], [C11_ATOMIC_BUILTINS=no])
- ])
-])
-
-ATOMIC_BUILTINS="no"
-
-AS_IF([test "x$INTEL_ATOMIC_BUILTINS" = "xyes"], [
- AC_DEFINE(HAVE_ATOMIC_BUILTINS, 1, [Define if compiler provides atomic builtins])
- AC_DEFINE(HAVE_ATOMIC_BUILTINS_INTEL, 1, [Define if compiler provides Intel atomic builtins])
- ATOMIC_BUILTINS="Intel"
-])
-
-AS_IF([test "x$C11_ATOMIC_BUILTINS" = "xyes"], [
- AC_DEFINE(HAVE_ATOMIC_BUILTINS, 1, [Define if compiler provides atomic builtins])
- AC_DEFINE(HAVE_ATOMIC_BUILTINS_C11, 1, [Define if compiler provides C11 atomic builtins])
- ATOMIC_BUILTINS="C11"
-])
-
-AS_IF([test "x$ATOMIC_BUILTINS" != "xno"], [AC_MSG_RESULT($ATOMIC_BUILTINS)], [AC_MSG_RESULT(no)])
-])
-
extern void mowgli_atomic_bootstrap();
-#if !defined MOWGLI_ATOMIC_DEBUG && defined HAVE_ATOMIC_BUILTINS_INTEL
+#if defined MOWGLI_COMPILER_GCC_COMPAT
+#if defined MOWGLI_COMPILER_GCC
+#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 1
+#define MOWGLI_ATOMIC_GCC
+#endif
+#elif defined MOWGLI_COMPILER_CLANG
+#if __has_builtin(__sync_swap)
+#define MOWGLI_ATOMIC_GCC
+#endif
+#elif defined MOWGLI_COMPILER_ICC
+#if defined __ICC && __ICC >= 1100
+#define MOWGLI_ATOMIC_GCC
+#endif
+#endif
+#elif defined __STDC_VERSION__
+#if __STDC_VERSION__ >= 201112L && !defined __STDC_NO_ATOMICS__
+#define MOWGLI_ATOMIC_C11
+#endif
+#endif
+
+#if !defined MOWGLI_ATOMIC_GCC && !defined MOWGLI_ATOMIC_C11
+#define MOWGLI_ATOMIC_FALLBACK
+#endif
+
+#if !defined MOWGLI_ATOMIC_DEBUG && defined MOWGLI_ATOMIC_GCC
#define mowgli_atomic(type) volatile type
#define mowgli_atomic_load_function(type, mangle) \
{ \
return (type)__sync_val_compare_and_swap(atomic, expected, desired); \
}
-#endif
-
-#if !defined MOWGLI_ATOMIC_DEBUG && defined HAVE_ATOMIC_BUILTINS_C11
+#elif !defined MOWGLI_ATOMIC_DEBUG && defined MOWGLI_ATOMIC_C11
#include <stdatomic.h>
-#define mowgli_atomic(type) _Atomic type
+#define mowgli_atomic(type) _Atomic(type)
#define mowgli_atomic_load_function(type, mangle) \
static inline type mowgli_atomic_load_##mangle (mowgli_atomic(type) *atomic) \
{ \
return (type)atomic_load(atomic); \
-})
+}
#define mowgli_atomic_store_function(type, mangle) \
static inline type mowgli_atomic_store_##mangle (mowgli_atomic(type) *atomic, type value) \
{ \
return (type)atomic_compare_exchange_strong(atomic, expected, desired); \
}
-#endif
-
-#if defined MOWGLI_ATOMIC_DEBUG || !defined HAVE_ATOMIC_BUILTINS
+#elif defined MOWGLI_ATOMIC_DEBUG || defined MOWGLI_ATOMIC_FALLBACK
#define mowgli_atomic(type) volatile type
extern mowgli_mutex_t mowgli_atomic_mutex[256];
projects / irc / atheme / libmowgli-2.git / commitdiff
