ax_sys_weak_alias=no
# Figure out what kind of aliasing may be supported...
- # Test whether compiler accepts __attribute__ form of weak aliasing
- { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts function __attribute__((weak,alias()))" >&5
-$as_echo_n "checking whether $CC accepts function __attribute__((weak,alias()))... " >&6; }
-if ${ax_cv_sys_weak_alias_attribute+:} false; then :
- $as_echo_n "(cached) " >&6
-else
-
- # We add -Werror if it's gcc to force an error exit if the weak attribute
- # isn't understood
- if test $GCC = yes; then :
-
- save_CFLAGS=$CFLAGS
- CFLAGS=-Werror
-fi
-
- # Try linking with a weak alias...
- cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h. */
-
-
-void __weakf(int c) {}
-void weakf(int c) __attribute__((weak, alias("__weakf")));
-int
-main ()
-{
-weakf(0)
- ;
- return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
- ax_cv_sys_weak_alias_attribute=yes
-else
- ax_cv_sys_weak_alias_attribute=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-
- # Restore original CFLAGS
- if test $GCC = yes; then :
-
- CFLAGS=$save_CFLAGS
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_sys_weak_alias_attribute" >&5
-$as_echo "$ax_cv_sys_weak_alias_attribute" >&6; }
-
- # What was the result of the test?
- if test $ax_sys_weak_alias = no &&
- test $ax_cv_sys_weak_alias_attribute = yes; then :
-
- ax_sys_weak_alias=attribute
-
-$as_echo "#define HAVE_SYS_WEAK_ALIAS_ATTRIBUTE 1" >>confdefs.h
-
-
-fi
-
# Test whether compiler accepts #pragma form of weak aliasing
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports #pragma weak" >&5
$as_echo_n "checking whether $CC supports #pragma weak... " >&6; }
$as_echo "#define HAVE_SYS_WEAK_ALIAS_CRIDUPLICATE 1" >>confdefs.h
+fi
+
+ # Test whether compiler accepts __attribute__ form of weak aliasing
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts function __attribute__((weak,alias()))" >&5
+$as_echo_n "checking whether $CC accepts function __attribute__((weak,alias()))... " >&6; }
+if ${ax_cv_sys_weak_alias_attribute+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+ # We add -Werror if it's gcc to force an error exit if the weak attribute
+ # isn't understood
+ if test $GCC = yes; then :
+
+ save_CFLAGS=$CFLAGS
+ CFLAGS=-Werror
+fi
+
+ # Try linking with a weak alias...
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+
+void __weakf(int c) {}
+void weakf(int c) __attribute__((weak, alias("__weakf")));
+int
+main ()
+{
+weakf(0)
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ax_cv_sys_weak_alias_attribute=yes
+else
+ ax_cv_sys_weak_alias_attribute=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+
+ # Restore original CFLAGS
+ if test $GCC = yes; then :
+
+ CFLAGS=$save_CFLAGS
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_sys_weak_alias_attribute" >&5
+$as_echo "$ax_cv_sys_weak_alias_attribute" >&6; }
+
+ # What was the result of the test?
+ if test $ax_sys_weak_alias = no &&
+ test $ax_cv_sys_weak_alias_attribute = yes; then :
+
+ ax_sys_weak_alias=attribute
+
+$as_echo "#define HAVE_SYS_WEAK_ALIAS_ATTRIBUTE 1" >>confdefs.h
+
+
fi