diff --git a/math/lapack/files/patch-ac b/math/lapack/files/patch-ac
index 5eabdb0901bb..a5deb33a61b8 100644
--- a/math/lapack/files/patch-ac
+++ b/math/lapack/files/patch-ac
@@ -1,37 +1,26 @@
-*** Makefile.orig	Tue Oct  4 16:42:15 1994
---- Makefile	Mon Oct  9 03:11:46 1995
-***************
-*** 6,12 ****
-  
-  include make.inc
-  
-! all: install lib testing blas_testing timing blas_timing
-  
-  lib: blaslib lapacklib tmglib
-  
---- 6,12 ----
-  
-  include make.inc
-  
-! all: install lib              # testing blas_testing timing blas_timing
-  
-  lib: blaslib lapacklib tmglib
-  
-***************
-*** 17,23 ****
-  	  testdlamch; testsecond; testdsecnd; \
-  	  cp lsame.f ../BLAS/SRC/; cp lsame.f ../SRC; \
-  	  cp slamch.f ../SRC/; cp dlamch.f ../SRC/; \
-! 	  cp second.f ../SRC/; cp dsecnd.f ../SRC/ )
-  
-  blaslib:
-  	( cd BLAS/SRC; $(MAKE) )
---- 17,24 ----
-  	  testdlamch; testsecond; testdsecnd; \
-  	  cp lsame.f ../BLAS/SRC/; cp lsame.f ../SRC; \
-  	  cp slamch.f ../SRC/; cp dlamch.f ../SRC/; \
-! 	  cp second.f ../SRC/; cp dsecnd.f ../SRC/; \
-! 	  cp etime_.c ../SRC/ )
-  
-  blaslib:
-  	( cd BLAS/SRC; $(MAKE) )
+--- Makefile.orig	Tue Oct  4 16:42:15 1994
++++ Makefile	Wed Feb 19 16:05:52 1997
+@@ -6,18 +6,19 @@
+ 
+ include make.inc
+ 
+-all: install lib testing blas_testing timing blas_timing
++all: install lib              # testing blas_testing timing blas_timing
+ 
+ lib: blaslib lapacklib tmglib
+ 
+ clean: cleanlib cleantesting cleantiming
+ 
+ install:
+-	( cd INSTALL; $(MAKE); testlsame; testslamch; \
+-	  testdlamch; testsecond; testdsecnd; \
++	( cd INSTALL; $(MAKE); ./testlsame; ./testslamch; \
++	  ./testdlamch; ./testsecond; ./testdsecnd; \
+ 	  cp lsame.f ../BLAS/SRC/; cp lsame.f ../SRC; \
+ 	  cp slamch.f ../SRC/; cp dlamch.f ../SRC/; \
+-	  cp second.f ../SRC/; cp dsecnd.f ../SRC/ )
++	  cp second.f ../SRC/; cp dsecnd.f ../SRC/; \
++	  cp etime_.c ../SRC/ )
+ 
+ blaslib:
+ 	( cd BLAS/SRC; $(MAKE) )