package/ead/src/tinysrp/acinclude.m4

   1 dnl
   2 dnl check for signal type
   3 dnl
   4 dnl AC_RETSIGTYPE isn't quite right, but almost.
   5 dnl
   6 define(TYPE_SIGNAL,[
   7 AC_MSG_CHECKING([POSIX signal handlers])
   8 AC_CACHE_VAL(cv_has_posix_signals,
   9 [AC_TRY_COMPILE(
  10 [#include <sys/types.h>
  11 #include <signal.h>
  12 #ifdef signal
  13 #undef signal
  14 #endif
  15 extern void (*signal ()) ();], [],
  16 cv_has_posix_signals=yes, cv_has_posix_signals=no)])
  17 AC_MSG_RESULT($cv_has_posix_signals)
  18 if test $cv_has_posix_signals = yes; then
  19    AC_DEFINE(RETSIGTYPE, void, [Return type is void])
  20    AC_DEFINE(POSIX_SIGTYPE, [], [Have POSIX signals])
  21 else
  22   if test $ac_cv_type_signal = void; then
  23      AC_DEFINE(RETSIGTYPE, void, [Return type is void])
  24   else
  25      AC_DEFINE(RETSIGTYPE, int, [Return type is int])
  26   fi
  27 fi])dnl