cpp: support directives within macro argument list

Undefined behavior by the standard but a GNU extension.

1 files changed, 11 insertions, 0 deletions

diff --git a/test/07-pp.c b/test/07-pp.c
index 47fb959..4301dbd 100644
--- a/test/07-pp.c
+++ b/test/07-pp.c
@@ -14,6 +14,7 @@ token spacing:
 sum = 1 + 2 +3;$
 [ baz] ;$
 +. *$
+x=7
 */
 
 #include "07-pp.h"
@@ -129,5 +130,15 @@ S\
 qx2(*) ) "$\n"
         );
 
+#define A(x,y) x=y
+   A(int x,
+#if 1
+         7
+#else 
+         3
+#endif
+      );
+   printf("x=%d\n",x);
+
    CAT(ret,urn) 0;
 }