| 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) AC_DEFINE(POSIX_SIGTYPE) |
| 20 | else |
| 21 | if test $ac_cv_type_signal = void; then |
| 22 | AC_DEFINE(RETSIGTYPE, void) |
| 23 | else |
| 24 | AC_DEFINE(RETSIGTYPE, int) |
| 25 | fi |
| 26 | fi])dnl |
| 27 | |
