-AC_MSG_CHECKING([for working %m in printf])
-AC_TRY_RUN([int main() { char s[100];
- sprintf(s,"%m");
- return(!(strcmp(s,"m") && strcmp(s,"%m")));
- }],AC_DEFINE(PRINTF_WORKS_PM) AC_MSG_RESULT(yes),AC_MSG_RESULT(no),AC_MSG_RESULT(avoiding))
+GCC_NEED_DECLARATION(gethostname, [#include <unistd.h>])
+GCC_NEED_DECLARATION(kill, [#include <sys/types.h>
+#include <signal.h>])
+GCC_NEED_DECLARATION(snprintf, [#include <stdio.h>])
+GCC_NEED_DECLARATION(vsnprintf, [#include <stdio.h>
+#include <stdarg.h>])
+GCC_NEED_DECLARATION(strdup, [#include <string.h>])
+GCC_NEED_DECLARATION(usleep, [#include <unistd.h>])
+GCC_NEED_DECLARATION(strcasecmp, [#include <string.h>])
+GCC_NEED_DECLARATION(siginterrupt,[#include <signal.h>])