1 files changed, 8 insertions, 0 deletions

diff --git a/src/m/intel386.h b/src/m/intel386.h
index 77e9e82adba..a5e688f9c98 100644
--- a/src/m/intel386.h
+++ b/src/m/intel386.h
@@ -121,6 +121,14 @@ NOTE-END */
 /* j.w.hawtin@lut.ac.uk says Solaris 2.1 on the X86 needs -lkvm, and it 
    already has FSCALE defined in a system header.  */
 #define LIBS_MACHINE -lkvm
+
+/* 14/9/84 J.W.Hawtin@lut.ac.uk Solaris 2.1 X86 does not like -traditional 
+   with GCC on the C_SWITCH_SYSTEM flags.  */
+#ifdef __GNUC__
+#undef C_SWITCH_SYSTEM
+#endif /* GCC */
+#define HAVE_VFORK
+
 #endif
 
 /* configure thinks solaris X86 has gethostname, but it does not work,