diff --git a/configure b/configure
index b981785b..4c6eaaf6 100755
--- a/configure
+++ b/configure
@@ -37,7 +37,7 @@ ar="ar"
 strip="strip"
 cpu=`uname -m`
 case "$cpu" in
-  i386|i486|i586|i686|i86pc|BePC)
+  i386|i486|i586|i686|i86pc|BePC|i686-AT386)
     cpu="x86"
   ;;
   x86_64)
diff --git a/tcc.h b/tcc.h
index 30458a2e..d28d1ece 100644
--- a/tcc.h
+++ b/tcc.h
@@ -79,6 +79,10 @@
 #define O_BINARY 0
 #endif
 
+#ifndef SA_SIGINFO
+#define SA_SIGINFO 0x00000004u
+#endif
+
 #include "libtcc.h"
 
 /* parser debug */