2008-12-24 12:42:12 +02:00
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dnl
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dnl check for signal type
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dnl
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dnl AC_RETSIGTYPE isn't quite right, but almost.
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dnl
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define(TYPE_SIGNAL,[
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AC_MSG_CHECKING([POSIX signal handlers])
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AC_CACHE_VAL(cv_has_posix_signals,
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[AC_TRY_COMPILE(
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[#include <sys/types.h>
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#include <signal.h>
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#ifdef signal
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#undef signal
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#endif
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extern void (*signal ()) ();], [],
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cv_has_posix_signals=yes, cv_has_posix_signals=no)])
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AC_MSG_RESULT($cv_has_posix_signals)
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if test $cv_has_posix_signals = yes; then
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2010-12-13 03:47:35 +02:00
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AC_DEFINE(RETSIGTYPE, void, [Return type is void])
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AC_DEFINE(POSIX_SIGTYPE, [], [Have POSIX signals])
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2008-12-24 12:42:12 +02:00
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else
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if test $ac_cv_type_signal = void; then
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2010-12-13 03:47:35 +02:00
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AC_DEFINE(RETSIGTYPE, void, [Return type is void])
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2008-12-24 12:42:12 +02:00
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else
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2010-12-13 03:47:35 +02:00
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AC_DEFINE(RETSIGTYPE, int, [Return type is int])
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2008-12-24 12:42:12 +02:00
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fi
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fi])dnl
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