AS_MKDIR_P([$dirname])
AT_DATA_GRAMMAR([$1.y],
-[%%
+[%{
+#include "$1.h"
+%}
+%%
dummy:;
+%%
+#include "$1.h"
])
-AT_CHECK([bison --defines=$1.h $1.y])
+AT_CHECK([bison --defines=$1.h --output=y.tab.c $1.y])
# CPP should be happy with it.
-AT_CHECK([$CC -E $1.h], 0, [ignore])
+AT_CHECK([$CC -E -I. y.tab.c], 0, [ignore])
AT_CLEANUP
])