Fix MacOS passsigalrm.c compilation error due to SIGRTMIN not existing on MacOS
The test will very probably fail on MacOS (as gdb output will contain SIGUSR1
rather than signal SIGRTMIN, but at least it should compile).
(not tested on MacOS; just tested that it still works on linux)



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12594 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/gdbserver_tests/passsigalrm.c b/gdbserver_tests/passsigalrm.c
index f7b5bc2..14f6095 100644
--- a/gdbserver_tests/passsigalrm.c
+++ b/gdbserver_tests/passsigalrm.c
@@ -15,6 +15,11 @@
 }
 
 static int breakme = 0;
+#ifndef SIGRTMIN
+// at least on MacOS, there is no SIGRTMIN.
+// So, use any other signal instead.
+#define SIGRTMIN SIGUSR1
+#endif
 
 int main (int argc, char *argv[])
 {