configure: drop siginterrupt

Not used anymore

configure

@@ -5563,17 +5563,6 @@ else
 fi
 done
 
-for ac_func in siginterrupt
-do :
-  ac_fn_c_check_func "$LINENO" "siginterrupt" "ac_cv_func_siginterrupt"
-if test "x$ac_cv_func_siginterrupt" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_SIGINTERRUPT 1
-_ACEOF
-
-fi
-done
-
 # The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
 # for constant arguments.  Useless!
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working alloca.h" >&5

configure.in

@@ -134,7 +134,6 @@ AC_CHECK_FUNCS([ftruncate gethostname getpagesize \
   gettimeofday memset mkdir mkfifo rmdir munmap nl_langinfo setenv setlocale \
   strcasecmp strchr strcspn strspn strdup strncasecmp strerror strrchr \
   strstr strtol strtoul uname], , [AC_MSG_ERROR(bailing out)])
-AC_CHECK_FUNCS(siginterrupt)
 AC_FUNC_ALLOCA
 AC_FUNC_CLOSEDIR_VOID
 AC_FUNC_CHOWN

lib/misc/configure.h.in

@@ -288,9 +288,6 @@
 /* Define to 1 if you have the `setlocale' function. */
 #undef HAVE_SETLOCALE
 
-/* Define to 1 if you have the `siginterrupt' function. */
-#undef HAVE_SIGINTERRUPT
-
 /* Define to 1 if you have the <signal.h> header file. */
 #undef HAVE_SIGNAL_H
 

lib/misc/lvm-wrappers.h

@@ -37,19 +37,4 @@ int read_urandom(void *buf, size_t len);
  */
 unsigned lvm_even_rand(unsigned *seed, unsigned max);
 
-#  ifndef HAVE_SIGINTERRUPT
-#    define siginterrupt(sig, flag) \
-	do { \
-		int ret; \
-		struct sigaction act; \
-		(void) sigaction(sig, NULL, &act); \
-		if (flag) \
-			act.sa_flags &= SA_RESTART; \
-		else \
-			act.sa_flags |= SA_RESTART; \
-		ret = sigaction(sig, &act, NULL); \
-		return ret; \
-	while (0)
-#  endif
-
 #endif