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Update configure.ac for newer autoconf tools.

nfactor-troky
Con Kolivas 13 years ago
parent
commit
7407e887f6
  1. 18
      configure.ac

18
configure.ac

@ -135,31 +135,31 @@ dnl CCAN wants to know a lot of vars. @@ -135,31 +135,31 @@ dnl CCAN wants to know a lot of vars.
# All the configuration checks. Regrettably, the __attribute__ checks will
# give false positives on old GCCs, since they just cause warnings. But that's
# fairly harmless.
AC_COMPILE_IFELSE([static void __attribute__((cold)) cleanup(void) { }],
AC_COMPILE_IFELSE([AC_LANG_SOURCE([static void __attribute__((cold)) cleanup(void) { }])],
AC_DEFINE([HAVE_ATTRIBUTE_COLD], [1],
[Define if __attribute__((cold))]))
AC_COMPILE_IFELSE([static void __attribute__((const)) cleanup(void) { }],
AC_COMPILE_IFELSE([AC_LANG_SOURCE([static void __attribute__((const)) cleanup(void) { }])],
AC_DEFINE([HAVE_ATTRIBUTE_CONST], [1],
[Define if __attribute__((const))]))
AC_COMPILE_IFELSE([static void __attribute__((noreturn)) cleanup(void) { exit(1); }],
AC_COMPILE_IFELSE([AC_LANG_SOURCE([static void __attribute__((noreturn)) cleanup(void) { exit(1); }])],
AC_DEFINE([HAVE_ATTRIBUTE_NORETURN], [1],
[Define if __attribute__((noreturn))]))
AC_COMPILE_IFELSE([static void __attribute__((format(__printf__, 1, 2))) cleanup(const char *fmt, ...) { }],
AC_COMPILE_IFELSE([AC_LANG_SOURCE([static void __attribute__((format(__printf__, 1, 2))) cleanup(const char *fmt, ...) { }])],
AC_DEFINE([HAVE_ATTRIBUTE_PRINTF], [1],
[Define if __attribute__((format(__printf__)))]))
AC_COMPILE_IFELSE([static void __attribute__((unused)) cleanup(void) { }],
AC_COMPILE_IFELSE([AC_LANG_SOURCE([static void __attribute__((unused)) cleanup(void) { }])],
AC_DEFINE([HAVE_ATTRIBUTE_UNUSED], [1],
[Define if __attribute__((unused))]))
AC_COMPILE_IFELSE([static void __attribute__((used)) cleanup(void) { }],
AC_COMPILE_IFELSE([AC_LANG_SOURCE([static void __attribute__((used)) cleanup(void) { }])],
AC_DEFINE([HAVE_ATTRIBUTE_USED], [1],
[Define if __attribute__((used))]))
AC_LINK_IFELSE([int main(void) { return __builtin_constant_p(1) ? 0 : 1; }],
AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) { return __builtin_constant_p(1) ? 0 : 1; }])],
AC_DEFINE([HAVE_BUILTIN_CONSTANT_P], [1],
[Define if have __builtin_constant_p]))
AC_LINK_IFELSE([int main(void) { return __builtin_types_compatible_p(char *, int) ? 1 : 0; }],
AC_LINK_IFELSE([AC_LANG_SOURCE([int main(void) { return __builtin_types_compatible_p(char *, int) ? 1 : 0; }])],
AC_DEFINE([HAVE_BUILTIN_TYPES_COMPATIBLE_P], [1],
[Define if have __builtin_types_compatible_p]))
AC_COMPILE_IFELSE([static int __attribute__((warn_unused_result)) func(int x) { return x; }],
AC_COMPILE_IFELSE([AC_LANG_SOURCE([static int __attribute__((warn_unused_result)) func(int x) { return x; }])],
AC_DEFINE([HAVE_WARN_UNUSED_RESULT], [1],
[Define if __attribute__((warn_unused_result))]))

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