SCCS-vsn: usr.bin/f77/include.tahoe/defines.h 5.2
#define ISERROR(z) (z->tag==TERROR)
#define ISPLUSOP(z) (z->tag==TEXPR && z->exprblock.opcode==OPPLUS)
#define ISSTAROP(z) (z->tag==TEXPR && z->exprblock.opcode==OPSTAR)
#define ISERROR(z) (z->tag==TERROR)
#define ISPLUSOP(z) (z->tag==TEXPR && z->exprblock.opcode==OPPLUS)
#define ISSTAROP(z) (z->tag==TEXPR && z->exprblock.opcode==OPSTAR)
-#define ISONE(z) (ISICON(z) && z->constblock.const.ci==1)
+#define ISONE(z) (ISICON(z) && z->constblock.constant.ci==1)
#define INT(z) ONEOF(z, MSKINT|MSKCHAR)
#define ICON(z) mkintcon( (ftnint)(z) )
#define INT(z) ONEOF(z, MSKINT|MSKCHAR)
#define ICON(z) mkintcon( (ftnint)(z) )