https://bugs.gentoo.org/722600
--- a/Makefile
+++ b/Makefile
@@ -2,4 +2,2 @@
 #
-CC = gcc
-LD = gcc
 # for testing. not to be used; build failures in misc/.
@@ -7,4 +5,2 @@
 #CFLAGS = -O2 -g
-CFLAGS = -O2 
-LDFLAGS = -lc
 
@@ -37,9 +33,9 @@
 xa:
-	(cd src && LD=${LD} CC="${CC} ${CFLAGS}" ${MAKE})
+	(cd src && ${MAKE})
 
 load:	
-	(cd loader && CC="${CC} ${CFLAGS}" ${MAKE})
+	(cd loader && ${MAKE})
 
 uncpk:
-	(cd misc && CC="${CC} ${CFLAGS}" ${MAKE})
+	(cd misc && ${MAKE})
 
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -4,3 +4,2 @@
 # -Wall -ansi et al. cause compile problems.
-CFLAGS =  -O2
 
@@ -12,15 +11,15 @@
 ../uncpk: uncpk.c
-	${CC} ${CFLAGS} uncpk.c -o $(XCBMLIB)/uncpk
+	${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} uncpk.c -o $(XCBMLIB)/uncpk
 
 ../printcbm: printcbm.c
-	${CC} ${CFLAGS} printcbm.c -o $(XCBMLIB)/printcbm
+	${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} printcbm.c -o $(XCBMLIB)/printcbm
 
 ../file65: file65.c
-	${CC} ${CFLAGS} file65.c -o $(XCBMLIB)/file65
+	${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} file65.c -o $(XCBMLIB)/file65
 
 ../ldo65: ldo65.c
-	${CC} ${CFLAGS} ldo65.c -o $(XCBMLIB)/ldo65
+	${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} ldo65.c -o $(XCBMLIB)/ldo65
 
 ../reloc65: reloc65.c
-	${CC} ${CFLAGS} reloc65.c -o $(XCBMLIB)/reloc65
+	${CC} ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} reloc65.c -o $(XCBMLIB)/reloc65
 
--- a/src/Makefile
+++ b/src/Makefile
@@ -10,3 +10,3 @@
 xa: ${OBJ}
-	${LD} -o ../xa ${OBJ} ${LDFLAGS}
+	${CC} ${LDFLAGS} -o ../xa ${OBJ}