diff --git a/.gitignore b/.gitignore
index 395defc..848a7c3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
-SOURCES/superlu_5.2.0.tar.gz
+/superlu_4.3.tar.gz
+/superlu_5.1.1.tar.gz
 /superlu_5.2.0.tar.gz
diff --git a/SuperLU-add-fpic.patch b/SuperLU-add-fpic.patch
new file mode 100644
index 0000000..906e379
--- /dev/null
+++ b/SuperLU-add-fpic.patch
@@ -0,0 +1,13 @@
+diff -up SuperLU_4.3/MAKE_INC/make.linux.fpic SuperLU_4.3/MAKE_INC/make.linux
+--- SuperLU_4.3/MAKE_INC/make.linux.fpic	2012-01-06 10:39:58.474356562 +0530
++++ SuperLU_4.3/MAKE_INC/make.linux	2012-01-06 10:40:59.933356590 +0530
+@@ -46,7 +46,8 @@ ARCHFLAGS    = cr
+ RANLIB       = ranlib
+ 
+ CC           = gcc
+-CFLAGS       = -O3
++FPIC         = -fPIC
++CFLAGS       = -O3 $(FPIC)
+ NOOPTS       = 
+ FORTRAN	     = g77
+ FFLAGS       = -O2
diff --git a/SuperLU-build-shared-lib3.patch b/SuperLU-build-shared-lib3.patch
new file mode 100644
index 0000000..afaefe9
--- /dev/null
+++ b/SuperLU-build-shared-lib3.patch
@@ -0,0 +1,39 @@
+diff -up SuperLU_4.3/SRC/Makefile.fix SuperLU_4.3/SRC/Makefile
+--- SuperLU_4.3/SRC/Makefile.fix	2012-02-01 17:15:17.711698876 +0530
++++ SuperLU_4.3/SRC/Makefile	2012-02-01 17:17:07.794698927 +0530
+@@ -111,7 +111,7 @@ ZLUSRC = \
+ 	ilu_zcolumn_dfs.o ilu_zpanel_dfs.o ilu_zcopy_to_ucol.o \
+ 	ilu_zpivotL.o zdiagonal.o
+ 
+-all:    single double complex complex16
++all:    sharedlib
+ 
+ single: $(SLUSRC) $(ALLAUX) $(LAAUX) $(SLASRC) $(SCLAUX)
+ 	$(ARCH) $(ARCHFLAGS) $(SUPERLULIB) \
+@@ -133,17 +133,22 @@ complex16: $(ZLUSRC) $(ALLAUX) $(LAAUX) 
+ 		$(ZLUSRC) $(ALLAUX) $(LAAUX) $(ZLASRC) $(DZLAUX)
+ 	$(RANLIB) $(SUPERLULIB)
+ 
++sharedlib: $(ALLAUX) $(LAAUX) $(SLASRC) $(DLASRC) $(CLASRC) $(ZLASRC) $(SCLAUX) $(DZLAUX) $(SLUSRC) $(DLUSRC) $(CLUSRC) $(ZLUSRC) 
++	$(CC) $(CFLAGS) $(LIBS) -shared -Wl,-soname,libsuperlu.so.4.3 -o libsuperlu.so.4.3 \
++		$(ALLAUX) $(LAAUX) $(SLASRC) $(DLASRC) $(CLASRC) $(ZLASRC) $(SCLAUX) \
++		$(DZLAUX) $(SLUSRC) $(DLUSRC) $(CLUSRC) $(ZLUSRC)
++	ln -sf libsuperlu.so.4.3 libsuperlu.so
+ 
+ ##################################
+ # Do not optimize these routines #
+ ##################################
+-slamch.o: slamch.c ; $(CC) -c $(NOOPTS) $(CDEFS) $<
+-dlamch.o: dlamch.c ; $(CC) -c $(NOOPTS) $(CDEFS) $<
+-superlu_timer.o:  superlu_timer.c ; $(CC) -c $(NOOPTS) $<
++slamch.o: slamch.c ; $(CC) $(FPIC) $(LIBS) -c $(NOOPTS) $(CDEFS) $<
++dlamch.o: dlamch.c ; $(CC) $(FPIC) $(LIBS) -c $(NOOPTS) $(CDEFS) $<
++superlu_timer.o:  superlu_timer.c ; $(CC) $(FPIC) $(LIBS) -c $(NOOPTS) $<
+ ##################################
+ 
+ .c.o:
+-	$(CC) $(CFLAGS) $(CDEFS) $(BLASDEF) -c $< $(VERBOSE)
++	$(CC) $(CFLAGS) $(CDEFS) $(BLASDEF) $(LIBS) -c $< $(VERBOSE)
+ 
+ .f.o:
+ 	$(FORTRAN) $(FFLAGS) -c $<
diff --git a/SuperLU-fix-format-security.patch b/SuperLU-fix-format-security.patch
new file mode 100644
index 0000000..5334a08
--- /dev/null
+++ b/SuperLU-fix-format-security.patch
@@ -0,0 +1,13 @@
+Index: SuperLU_4.3/SRC/util.c
+===================================================================
+--- SuperLU_4.3.orig/SRC/util.c
++++ SuperLU_4.3/SRC/util.c
+@@ -29,7 +29,7 @@
+ 
+ void superlu_abort_and_exit(char* msg)
+ {
+-    fprintf(stderr, msg);
++    fputs(stderr, msg);
+     exit (-1);
+ }
+ 
diff --git a/SuperLU-fix-testsuite.patch b/SuperLU-fix-testsuite.patch
new file mode 100644
index 0000000..e358875
--- /dev/null
+++ b/SuperLU-fix-testsuite.patch
@@ -0,0 +1,52 @@
+Index: SuperLU_4.3/TESTING/Makefile
+===================================================================
+--- SuperLU_4.3.orig/TESTING/Makefile
++++ SuperLU_4.3/TESTING/Makefile
+@@ -52,9 +52,9 @@ testmat:
+ 
+ single: ./stest stest.out
+ 
+-./stest: $(SLINTST) $(ALINTST) $(SUPERLULIB) $(TMGLIB)
++./stest: $(SLINTST) $(ALINTST) $(TMGLIB)
+ 	$(LOADER) $(LOADOPTS) $(SLINTST) $(ALINTST) \
+-        $(TMGLIB) $(SUPERLULIB) $(BLASLIB) -lm -o $@
++        $(TMGLIB) -Wl,-rpath,../SRC $(SUPERLULIB) $(BLASLIB) -lm -o $@
+ 
+ stest.out: stest stest.csh
+ 	@echo Testing SINGLE PRECISION linear equation routines 
+@@ -62,9 +62,9 @@ stest.out: stest stest.csh
+ 
+ double: ./dtest dtest.out
+ 
+-./dtest: $(DLINTST) $(ALINTST) $(SUPERLULIB) $(TMGLIB)
++./dtest: $(DLINTST) $(ALINTST) $(TMGLIB)
+ 	$(LOADER) $(LOADOPTS) $(DLINTST) $(ALINTST) \
+-        $(TMGLIB) $(SUPERLULIB) $(BLASLIB) -lm -o $@
++        $(TMGLIB) -Wl,-rpath,../SRC $(SUPERLULIB) $(BLASLIB) -lm -o $@
+ 
+ dtest.out: dtest dtest.csh
+ 	@echo Testing DOUBLE PRECISION linear equation routines 
+@@ -72,9 +72,9 @@ dtest.out: dtest dtest.csh
+ 
+ complex: ./ctest ctest.out
+ 
+-./ctest: $(CLINTST) $(ALINTST) $(SUPERLULIB) $(TMGLIB)
++./ctest: $(CLINTST) $(ALINTST) $(TMGLIB)
+ 	$(LOADER) $(LOADOPTS) $(CLINTST) $(ALINTST) \
+-	$(TMGLIB) $(SUPERLULIB) $(BLASLIB) -lm -o $@
++	$(TMGLIB) -Wl,-rpath,../SRC $(SUPERLULIB) $(BLASLIB) -lm -o $@
+ 
+ ctest.out: ctest ctest.csh
+ 	@echo Testing SINGLE COMPLEX linear equation routines 
+@@ -82,9 +82,9 @@ ctest.out: ctest ctest.csh
+ 
+ complex16: ./ztest ztest.out
+ 
+-./ztest: $(ZLINTST) $(ALINTST) $(SUPERLULIB) $(TMGLIB)
++./ztest: $(ZLINTST) $(ALINTST) $(TMGLIB)
+ 	$(LOADER) $(LOADOPTS) $(ZLINTST) $(ALINTST) \
+-	$(TMGLIB) $(SUPERLULIB) $(BLASLIB) -lm -o $@
++	$(TMGLIB) -Wl,-rpath,../SRC $(SUPERLULIB) $(BLASLIB) -lm -o $@
+ 
+ ztest.out: ztest ztest.csh
+ 	@echo Testing DOUBLE COMPLEX linear equation routines 
diff --git a/SuperLU-removemc64.patch b/SuperLU-removemc64.patch
new file mode 100644
index 0000000..00d36af
--- /dev/null
+++ b/SuperLU-removemc64.patch
@@ -0,0 +1,25 @@
+Description: Provide stubs for the two functions whose implementation is nonfree
+Author: Sébastien Villemot <sebastien@debian.org>
+Forwarded: not-needed
+Last-Update: 2013-11-27
+---
+This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
+--- /dev/null
++++ b/SRC/mc64ad.c
+@@ -0,0 +1,16 @@
++#include <stdio.h>
++#include <stdlib.h>
++
++void mc64id_(int *a)
++{
++  fprintf(stderr, "SuperLU: MC64 functionality not available (it uses non-free code). Aborting.\n");
++  abort();
++}
++
++void mc64ad_(int *a, int *b, int *c, int d[], int e[], double f[],
++             int *g, int h[], int *i, int j[], int *k, double l[],
++             int m[], int n[])
++{
++  fprintf(stderr, "SuperLU: MC64 functionality not available (it uses non-free code). Aborting.\n");
++  abort();
++}