libsamplerate/M4/check_signal.m4

   1 dnl @synopsis AC_CHECK_SIGNAL(SIGNAME)
   2 dnl
   3 dnl
   4 dnl @category C
   5 dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
   6 dnl @version 1.0        Jul 07 2007
   7
   8 AC_DEFUN([AC_CHECK_SIGNAL],
   9 [AC_CACHE_CHECK(for $1,
  10   ac_cv_signal_$1,
  11 [
  12 AC_TRY_LINK([
  13 #include <signal.h>
  14
  15 ], signal($1, SIG_DFL) ;, ac_cv_signal_$1=yes, ac_cv_signal_$1=no)
  16
  17 ])
  18
  19 if test "$ac_cv_signal_$1" = yes; then
  20   AC_DEFINE(HAVE_$1, 1,
  21             [Define if you have signal $1.])
  22 fi
  23 ])# AC_CHECK_SIGNAL
  24
  25
  26 ## AC_CHECK_SIGNALS