--- tmp-libf2c/makefile.u	2012-04-30 22:45:53.611478100 +0200
+++ tmp-libf2c/makefile.xc	2012-04-30 22:46:13.201480616 +0200
@@ -13,14 +13,17 @@
 # to the CFLAGS = line below.
 
 .SUFFIXES: .c .o
-CC = cc
+CC = $(TARGET)-gcc
+AR = $(TARGET)-ar
+RANLIB = $(TARGET)-ranlib
+LD = $(TARGET)-ld
 SHELL = /bin/sh
-CFLAGS = -O
+CFLAGS = -O -DUSE_CLOCK
 
 # compile, then strip unnecessary symbols
 .c.o:
 	$(CC) -c -DSkip_f2c_Undefs $(CFLAGS) $*.c
-	ld -r -x -o $*.xxx $*.o
+	$(LD) -r -x -o $*.xxx $*.o
 	mv $*.xxx $*.o
 ## Under Solaris (and other systems that do not understand ld -x),
 ## omit -x in the ld line above.
@@ -72,8 +75,8 @@
 all: f2c.h signal1.h sysdep1.h libf2c.a
 
 libf2c.a: $(OFILES)
-	ar r libf2c.a $?
-	-ranlib libf2c.a
+	$(AR) r libf2c.a $?
+	-$(RANLIB) libf2c.a
 
 ## Shared-library variant: the following rule works on Linux
 ## systems.  Details are system-dependent.  Under Linux, -fPIC
@@ -123,7 +126,7 @@
 
 install: libf2c.a
 	cp libf2c.a $(LIBDIR)
-	-ranlib $(LIBDIR)/libf2c.a
+	-$(RANLIB) $(LIBDIR)/libf2c.a
 
 clean:
 	rm -f libf2c.a *.o arith.h signal1.h sysdep1.h
@@ -183,10 +186,9 @@
 xwsne.o:	fmt.h
 
 arith.h: arithchk.c
-	$(CC) $(CFLAGS) -DNO_FPINIT arithchk.c -lm ||\
-	 $(CC) -DNO_LONG_LONG $(CFLAGS) -DNO_FPINIT arithchk.c -lm
-	./a.out >arith.h
-	rm -f a.out arithchk.o
+	$(CC) $(CFLAGS) -DNO_FPINIT arithchk.c -lm || $(CC) -DNO_LONG_LONG $(CFLAGS) -DNO_FPINIT arithchk.c -lm
+	./a.exe >arith.h
+	rm -f a.exe arithchk.o
 
 check:
 	xsum Notice README abort_.c arithchk.c backspac.c c_abs.c c_cos.c \