libraries/SPQR: Updated for version 1.3.1.

Signed-off-by: Robby Workman <rworkman@slackbuilds.org>

4 files changed, 424 insertions, 323 deletions

diff --git a/libraries/SPQR/SPQR.SlackBuild b/libraries/SPQR/SPQR.SlackBuild
index bc3d9c9c8aea..e7e1140e7e1e 100644
--- a/libraries/SPQR/SPQR.SlackBuild
+++ b/libraries/SPQR/SPQR.SlackBuild
@@ -1,10 +1,29 @@
 #!/bin/sh
 
 # Slackware build script for SPQR
-# Written by Kyle Guinn <elyk03@gmail.com>
+
+# Copyright 2013 Kyle Guinn <elyk03@gmail.com>, USA
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 PRGNAM=SPQR
-VERSION=${VERSION:-1.2.2}
+VERSION=${VERSION:-1.3.1}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
 
@@ -56,6 +75,7 @@ find -L . \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
 patch -p1 < $CWD/autotoolize.diff
+patch -p1 < $CWD/atlas-threaded-blas.diff
 autoreconf -vif
 
 CFLAGS="$SLKCFLAGS" \
@@ -70,9 +90,11 @@ CXXFLAGS="$SLKCFLAGS" \
   --docdir=/usr/doc/$PRGNAM-$VERSION \
   --enable-shared \
   --disable-static \
+  --disable-dependency-tracking \
   --build=$ARCH-slackware-linux
 
 make
+make check
 make install-strip DESTDIR=$PKG
 
 mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
diff --git a/libraries/SPQR/SPQR.info b/libraries/SPQR/SPQR.info
index 6132e73d6dcd..d1958c8dce16 100644
--- a/libraries/SPQR/SPQR.info
+++ b/libraries/SPQR/SPQR.info
@@ -1,10 +1,10 @@
 PRGNAM="SPQR"
-VERSION="1.2.2"
-HOMEPAGE="http://www.cise.ufl.edu/research/sparse/SPQR/"
-DOWNLOAD="http://www.cise.ufl.edu/research/sparse/SPQR/SPQR-1.2.2.tar.gz"
-MD5SUM="4ea91c05bc3c207ffa9039a4896e42f5"
+VERSION="1.3.1"
+HOMEPAGE="https://www.cise.ufl.edu/research/sparse/SPQR/"
+DOWNLOAD="https://www.cise.ufl.edu/research/sparse/SPQR/SPQR-1.3.1.tar.gz"
+MD5SUM="c1a55e7ac6208f7657186aa01356c8f2"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
-REQUIRES="CHOLMOD tbb"
+REQUIRES="blas lapack SuiteSparse_config CHOLMOD tbb"
 MAINTAINER="Kyle Guinn"
 EMAIL="elyk03@gmail.com"
diff --git a/libraries/SPQR/atlas-threaded-blas.diff b/libraries/SPQR/atlas-threaded-blas.diff
new file mode 100644
index 000000000000..e7f34ef011e3
--- /dev/null
+++ b/libraries/SPQR/atlas-threaded-blas.diff
@@ -0,0 +1,26 @@
+diff --git a/ax_blas.m4 b/ax_blas.m4
+--- a/ax_blas.m4
++++ b/ax_blas.m4
+@@ -117,12 +117,16 @@
+ # BLAS in ATLAS library? (http://math-atlas.sourceforge.net/)
+ if test $ax_blas_ok = no; then
+ 	AC_CHECK_LIB(atlas, ATL_xerbla,
+-		[AC_CHECK_LIB(f77blas, $sgemm,
+-		[AC_CHECK_LIB(cblas, cblas_dgemm,
+-			[ax_blas_ok=yes
+-			 BLAS_LIBS="-lcblas -lf77blas -latlas"],
+-			[], [-lf77blas -latlas])],
+-			[], [-latlas])])
++		[AC_CHECK_LIB(ptf77blas, $sgemm,
++			[AC_CHECK_LIB(ptcblas, cblas_dgemm,
++				[ax_blas_ok=yes; BLAS_LIBS="-lptcblas -lptf77blas -latlas"],,
++				[-lptf77blas -latlas])],
++			[AC_CHECK_LIB(f77blas, $sgemm,
++				[AC_CHECK_LIB(cblas, cblas_dgemm,
++					[ax_blas_ok=yes; BLAS_LIBS="-lcblas -lf77blas -latlas"],,
++					[-lf77blas -latlas])],,
++				[-latlas])],
++			[-latlas])])
+ fi
+ 
+ # BLAS in PhiPACK libraries? (requires generic BLAS lib, too)
diff --git a/libraries/SPQR/autotoolize.diff b/libraries/SPQR/autotoolize.diff
index 151336a075ec..3b4efd6f0292 100644
--- a/libraries/SPQR/autotoolize.diff
+++ b/libraries/SPQR/autotoolize.diff
@@ -3,7 +3,7 @@ new file mode 100644
 --- /dev/null
 +++ b/Demo/Makefile.am
 @@ -0,0 +1,109 @@
-+AM_CPPFLAGS = -I$(top_srcdir)/Include $(CHOLMOD_CFLAGS) $(UFCONFIG_CFLAGS)
++AM_CPPFLAGS = -I$(top_srcdir)/Include $(CHOLMOD_CFLAGS) $(SUITESPARSECONFIG_CFLAGS)
 +LDADD = $(top_builddir)/Source/libspqr.la
 +
 +EXTRA_DIST = \
@@ -26,127 +26,130 @@ new file mode 100644
 +qrdemoc_CFLAGS = $(AM_CFLAGS) -ansi
 +
 +MATRICES = \
-+	../Matrix/GD01_b.mtx \
-+	../Matrix/GD06_theory.mtx \
-+	../Matrix/GD98_a.mtx \
-+	../Matrix/LFAT5.mtx \
-+	../Matrix/Ragusa16.mtx \
-+	../Matrix/Tina_AskCal.mtx \
-+	../Matrix/Tina_AskCal_perm.mtx \
-+	../Matrix/a0.mtx \
-+	../Matrix/a04.mtx \
-+	../Matrix/a1.mtx \
-+	../Matrix/a2.mtx \
-+	../Matrix/a4.mtx \
-+	../Matrix/ash219.mtx \
-+	../Matrix/b1_ss.mtx \
-+	../Matrix/bcspwr01.mtx \
-+	../Matrix/bfwa62.mtx \
-+	../Matrix/c2.mtx \
-+	../Matrix/c32.mtx \
-+	../Matrix/lfat5b.mtx \
-+	../Matrix/lp_share1b.mtx \
-+	../Matrix/lpi_galenet.mtx \
-+	../Matrix/lpi_itest6.mtx \
-+	../Matrix/r2.mtx \
-+	../Matrix/s32.mtx \
-+	../Matrix/west0067.mtx \
-+	../Matrix/young1c.mtx
++	$(top_srcdir)/Matrix/GD01_b.mtx \
++	$(top_srcdir)/Matrix/GD06_theory.mtx \
++	$(top_srcdir)/Matrix/GD98_a.mtx \
++	$(top_srcdir)/Matrix/LFAT5.mtx \
++	$(top_srcdir)/Matrix/Ragusa16.mtx \
++	$(top_srcdir)/Matrix/Tina_AskCal.mtx \
++	$(top_srcdir)/Matrix/Tina_AskCal_perm.mtx \
++	$(top_srcdir)/Matrix/a0.mtx \
++	$(top_srcdir)/Matrix/a04.mtx \
++	$(top_srcdir)/Matrix/a1.mtx \
++	$(top_srcdir)/Matrix/a2.mtx \
++	$(top_srcdir)/Matrix/a4.mtx \
++	$(top_srcdir)/Matrix/ash219.mtx \
++	$(top_srcdir)/Matrix/b1_ss.mtx \
++	$(top_srcdir)/Matrix/bcspwr01.mtx \
++	$(top_srcdir)/Matrix/bfwa62.mtx \
++	$(top_srcdir)/Matrix/c2.mtx \
++	$(top_srcdir)/Matrix/c32.mtx \
++	$(top_srcdir)/Matrix/lfat5b.mtx \
++	$(top_srcdir)/Matrix/lp_share1b.mtx \
++	$(top_srcdir)/Matrix/lpi_galenet.mtx \
++	$(top_srcdir)/Matrix/lpi_itest6.mtx \
++	$(top_srcdir)/Matrix/r2.mtx \
++	$(top_srcdir)/Matrix/s32.mtx \
++	$(top_srcdir)/Matrix/west0067.mtx \
++	$(top_srcdir)/Matrix/young1c.mtx
 +
 +check-local: $(check_PROGRAMS) $(MATRICES)
-+	-./qrsimple < ../Matrix/ash219.mtx
-+	-./qrsimplec < ../Matrix/ash219.mtx
-+	-./qrsimple < ../Matrix/west0067.mtx
-+	-./qrsimplec < ../Matrix/west0067.mtx
-+	-./qrdemo < ../Matrix/a2.mtx
-+	-./qrdemo < ../Matrix/r2.mtx
-+	-./qrdemo < ../Matrix/a04.mtx
-+	-./qrdemo < ../Matrix/a2.mtx
-+	-./qrdemo < ../Matrix/west0067.mtx
-+	-./qrdemo < ../Matrix/c2.mtx
-+	-./qrdemo < ../Matrix/a0.mtx
-+	-./qrdemo < ../Matrix/lfat5b.mtx
-+	-./qrdemo < ../Matrix/bfwa62.mtx
-+	-./qrdemo < ../Matrix/LFAT5.mtx
-+	-./qrdemo < ../Matrix/b1_ss.mtx
-+	-./qrdemo < ../Matrix/bcspwr01.mtx
-+	-./qrdemo < ../Matrix/lpi_galenet.mtx
-+	-./qrdemo < ../Matrix/lpi_itest6.mtx
-+	-./qrdemo < ../Matrix/ash219.mtx
-+	-./qrdemo < ../Matrix/a4.mtx
-+	-./qrdemo < ../Matrix/s32.mtx
-+	-./qrdemo < ../Matrix/c32.mtx
-+	-./qrdemo < ../Matrix/lp_share1b.mtx
-+	-./qrdemo < ../Matrix/a1.mtx
-+	-./qrdemo < ../Matrix/GD06_theory.mtx
-+	-./qrdemo < ../Matrix/GD01_b.mtx
-+	-./qrdemo < ../Matrix/Tina_AskCal_perm.mtx
-+	-./qrdemo < ../Matrix/Tina_AskCal.mtx
-+	-./qrdemo < ../Matrix/GD98_a.mtx
-+	-./qrdemo < ../Matrix/Ragusa16.mtx
-+	-./qrdemo < ../Matrix/young1c.mtx
-+	-./qrdemoc < ../Matrix/a2.mtx
-+	-./qrdemoc < ../Matrix/r2.mtx
-+	-./qrdemoc < ../Matrix/a04.mtx
-+	-./qrdemoc < ../Matrix/a2.mtx
-+	-./qrdemoc < ../Matrix/west0067.mtx
-+	-./qrdemoc < ../Matrix/c2.mtx
-+	-./qrdemoc < ../Matrix/a0.mtx
-+	-./qrdemoc < ../Matrix/lfat5b.mtx
-+	-./qrdemoc < ../Matrix/bfwa62.mtx
-+	-./qrdemoc < ../Matrix/LFAT5.mtx
-+	-./qrdemoc < ../Matrix/b1_ss.mtx
-+	-./qrdemoc < ../Matrix/bcspwr01.mtx
-+	-./qrdemoc < ../Matrix/lpi_galenet.mtx
-+	-./qrdemoc < ../Matrix/lpi_itest6.mtx
-+	-./qrdemoc < ../Matrix/ash219.mtx
-+	-./qrdemoc < ../Matrix/a4.mtx
-+	-./qrdemoc < ../Matrix/s32.mtx
-+	-./qrdemoc < ../Matrix/c32.mtx
-+	-./qrdemoc < ../Matrix/lp_share1b.mtx
-+	-./qrdemoc < ../Matrix/a1.mtx
-+	-./qrdemoc < ../Matrix/GD06_theory.mtx
-+	-./qrdemoc < ../Matrix/GD01_b.mtx
-+	-./qrdemoc < ../Matrix/Tina_AskCal_perm.mtx
-+	-./qrdemoc < ../Matrix/Tina_AskCal.mtx
-+	-./qrdemoc < ../Matrix/GD98_a.mtx
-+	-./qrdemoc < ../Matrix/Ragusa16.mtx
-+	-./qrdemoc < ../Matrix/young1c.mtx
++	-./qrsimple < $(top_srcdir)/Matrix/ash219.mtx
++	-./qrsimplec < $(top_srcdir)/Matrix/ash219.mtx
++	-./qrsimple < $(top_srcdir)/Matrix/west0067.mtx
++	-./qrsimplec < $(top_srcdir)/Matrix/west0067.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/a2.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/r2.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/a04.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/a2.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/west0067.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/c2.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/a0.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/lfat5b.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/bfwa62.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/LFAT5.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/b1_ss.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/bcspwr01.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/lpi_galenet.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/lpi_itest6.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/ash219.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/a4.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/s32.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/c32.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/lp_share1b.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/a1.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/GD06_theory.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/GD01_b.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/Tina_AskCal_perm.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/Tina_AskCal.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/GD98_a.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/Ragusa16.mtx
++	-./qrdemo < $(top_srcdir)/Matrix/young1c.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/a2.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/r2.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/a04.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/a2.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/west0067.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/c2.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/a0.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/lfat5b.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/bfwa62.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/LFAT5.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/b1_ss.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/bcspwr01.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/lpi_galenet.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/lpi_itest6.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/ash219.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/a4.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/s32.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/c32.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/lp_share1b.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/a1.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/GD06_theory.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/GD01_b.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/Tina_AskCal_perm.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/Tina_AskCal.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/GD98_a.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/Ragusa16.mtx
++	-./qrdemoc < $(top_srcdir)/Matrix/young1c.mtx
 diff --git a/Doc/Makefile.am b/Doc/Makefile.am
 new file mode 100644
 --- /dev/null
 +++ b/Doc/Makefile.am
-@@ -0,0 +1,24 @@
+@@ -0,0 +1,28 @@
 +EXTRA_DIST = \
 +	ChangeLog \
 +	README.txt \
-+	gpl.txt \
-+	algo_spqr.pdf \
-+	spqr.pdf
++	gpl.txt
 +
 +dist_noinst_DATA = \
 +	spqr_user_guide.tex \
 +	spqr_user_guide.bib
 +
-+pdf_DATA = \
++dist_pdf_DATA = \
 +	spqr_user_guide.pdf \
 +	algo_spqr.pdf \
 +	spqr.pdf
 +
-+%.pdf: %.tex %.bib
-+	pdflatex $*
-+	bibtex $*
-+	pdflatex $*
-+	pdflatex $*
-+
-+clean-local:
-+	-$(RM) *.aux *.bbl *.blg *.log *.out
++TEX = TEXINPUTS="$(srcdir):" pdflatex -interaction nonstopmode -file-line-error
++BIB = BIBINPUTS="$(srcdir):" bibtex
++%.pdf: %.tex %.bbl
++	$(TEX) $*
++	while grep -q "Rerun to get cross-references right" $*.log; do \
++		$(TEX) $*; \
++	done
++%.bbl: %.aux %.bib
++	$(BIB) $*
++%.aux: %.tex
++	$(TEX) $*
++
++CLEANFILES = *.aux *.bbl *.blg *.log *.toc
++MAINTAINERCLEANFILES = $(dist_pdf_DATA)
 diff --git a/Include/Makefile.am b/Include/Makefile.am
 new file mode 100644
 --- /dev/null
 +++ b/Include/Makefile.am
-@@ -0,0 +1,6 @@
-+pkgincludedir = $(includedir)/spqr
+@@ -0,0 +1,5 @@
 +pkginclude_HEADERS = \
 +	SuiteSparseQR.hpp \
 +	SuiteSparseQR_C.h \
@@ -203,10 +206,14 @@ diff --git a/Source/Makefile.am b/Source/Makefile.am
 new file mode 100644
 --- /dev/null
 +++ b/Source/Makefile.am
-@@ -0,0 +1,50 @@
-+AM_CPPFLAGS = -I$(top_srcdir)/Include $(TBB_CFLAGS) $(CHOLMOD_CFLAGS) $(UFCONFIG_CFLAGS)
-+AM_CPPFLAGS += $(SPQR_NPARTITION)
-+AM_CPPFLAGS += $(SPQR_HAVE_TBB)
+@@ -0,0 +1,54 @@
++AM_CPPFLAGS = -I$(top_srcdir)/Include $(TBB_CFLAGS) $(CHOLMOD_CFLAGS) $(SUITESPARSECONFIG_CFLAGS)
++if !EXPERT
++AM_CPPFLAGS += -DNEXPERT
++endif
++if TBB
++AM_CPPFLAGS += -DHAVE_TBB
++endif
 +
 +lib_LTLIBRARIES = libspqr.la
 +
@@ -252,97 +259,92 @@ new file mode 100644
 +	spqr_trapezoidal.cpp \
 +	spqr_type.cpp
 +
-+libspqr_la_LIBADD = $(TBB_LIBS) $(CHOLMOD_LIBS) $(LAPACK_LIBS) $(BLAS_LIBS) -lm
-+libspqr_la_LDFLAGS = -no-undefined -version-info 3:2:2
-diff --git a/acx_blas.m4 b/acx_blas.m4
++libspqr_la_LIBADD = $(TBB_LIBS) $(CHOLMOD_LIBS) $(SUITESPARSECONFIG_LIBS) $(LAPACK_LIBS) $(BLAS_LIBS) -lm
++libspqr_la_LDFLAGS = -no-undefined -version-number 1:3:1
+diff --git a/ax_blas.m4 b/ax_blas.m4
 new file mode 100644
 --- /dev/null
-+++ b/acx_blas.m4
-@@ -0,0 +1,191 @@
-+##### http://autoconf-archive.cryp.to/acx_blas.html
++++ b/ax_blas.m4
+@@ -0,0 +1,238 @@
++# ===========================================================================
++#          http://www.gnu.org/software/autoconf-archive/ax_blas.html
++# ===========================================================================
 +#
 +# SYNOPSIS
 +#
-+#   ACX_BLAS([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
++#   AX_BLAS([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
 +#
 +# DESCRIPTION
 +#
-+#   This macro looks for a library that implements the BLAS
-+#   linear-algebra interface (see http://www.netlib.org/blas/). On
-+#   success, it sets the BLAS_LIBS output variable to hold the
-+#   requisite library linkages.
++#   This macro looks for a library that implements the BLAS linear-algebra
++#   interface (see http://www.netlib.org/blas/). On success, it sets the
++#   BLAS_LIBS output variable to hold the requisite library linkages.
 +#
 +#   To link with BLAS, you should link with:
 +#
-+#   	$BLAS_LIBS $LIBS $FLIBS
++#     $BLAS_LIBS $LIBS $FLIBS
 +#
 +#   in that order. FLIBS is the output variable of the
-+#   AC_F77_LIBRARY_LDFLAGS macro (called if necessary by ACX_BLAS), and
-+#   is sometimes necessary in order to link with F77 libraries. Users
-+#   will also need to use AC_F77_DUMMY_MAIN (see the autoconf manual),
-+#   for the same reason.
++#   AC_F77_LIBRARY_LDFLAGS macro (called if necessary by AX_BLAS), and is
++#   sometimes necessary in order to link with F77 libraries. Users will also
++#   need to use AC_F77_DUMMY_MAIN (see the autoconf manual), for the same
++#   reason.
 +#
-+#   Many libraries are searched for, from ATLAS to CXML to ESSL. The
-+#   user may also use --with-blas=<lib> in order to use some specific
-+#   BLAS library <lib>. In order to link successfully, however, be
-+#   aware that you will probably need to use the same Fortran compiler
-+#   (which can be set via the F77 env. var.) as was used to compile the
-+#   BLAS library.
++#   Many libraries are searched for, from ATLAS to CXML to ESSL. The user
++#   may also use --with-blas=<lib> in order to use some specific BLAS
++#   library <lib>. In order to link successfully, however, be aware that you
++#   will probably need to use the same Fortran compiler (which can be set
++#   via the F77 env. var.) as was used to compile the BLAS library.
 +#
-+#   ACTION-IF-FOUND is a list of shell commands to run if a BLAS
-+#   library is found, and ACTION-IF-NOT-FOUND is a list of commands to
-+#   run it if it is not found. If ACTION-IF-FOUND is not specified, the
-+#   default action will define HAVE_BLAS.
++#   ACTION-IF-FOUND is a list of shell commands to run if a BLAS library is
++#   found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it is
++#   not found. If ACTION-IF-FOUND is not specified, the default action will
++#   define HAVE_BLAS.
 +#
-+#   This macro requires autoconf 2.50 or later.
++# LICENSE
 +#
-+# LAST MODIFICATION
++#   Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
 +#
-+#   2007-07-29
++#   This program is free software: you can redistribute it and/or modify it
++#   under the terms of the GNU General Public License as published by the
++#   Free Software Foundation, either version 3 of the License, or (at your
++#   option) any later version.
 +#
-+# COPYLEFT
++#   This program is distributed in the hope that it will be useful, but
++#   WITHOUT ANY WARRANTY; without even the implied warranty of
++#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
++#   Public License for more details.
 +#
-+#   Copyright (c) 2007 Steven G. Johnson <stevenj@alum.mit.edu>
++#   You should have received a copy of the GNU General Public License along
++#   with this program. If not, see <http://www.gnu.org/licenses/>.
 +#
-+#   This program is free software: you can redistribute it and/or
-+#   modify it under the terms of the GNU General Public License as
-+#   published by the Free Software Foundation, either version 3 of the
-+#   License, or (at your option) any later version.
++#   As a special exception, the respective Autoconf Macro's copyright owner
++#   gives unlimited permission to copy, distribute and modify the configure
++#   scripts that are the output of Autoconf when processing the Macro. You
++#   need not follow the terms of the GNU General Public License when using
++#   or distributing such scripts, even though portions of the text of the
++#   Macro appear in them. The GNU General Public License (GPL) does govern
++#   all other use of the material that constitutes the Autoconf Macro.
 +#
-+#   This program is distributed in the hope that it will be useful, but
-+#   WITHOUT ANY WARRANTY; without even the implied warranty of
-+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-+#   General Public License for more details.
-+#
-+#   You should have received a copy of the GNU General Public License
-+#   along with this program. If not, see
-+#   <http://www.gnu.org/licenses/>.
-+#
-+#   As a special exception, the respective Autoconf Macro's copyright
-+#   owner gives unlimited permission to copy, distribute and modify the
-+#   configure scripts that are the output of Autoconf when processing
-+#   the Macro. You need not follow the terms of the GNU General Public
-+#   License when using or distributing such scripts, even though
-+#   portions of the text of the Macro appear in them. The GNU General
-+#   Public License (GPL) does govern all other use of the material that
-+#   constitutes the Autoconf Macro.
-+#
-+#   This special exception to the GPL applies to versions of the
-+#   Autoconf Macro released by the Autoconf Macro Archive. When you
-+#   make and distribute a modified version of the Autoconf Macro, you
-+#   may extend this special exception to the GPL to apply to your
-+#   modified version as well.
-+
-+AC_DEFUN([ACX_BLAS], [
++#   This special exception to the GPL applies to versions of the Autoconf
++#   Macro released by the Autoconf Archive. When you make and distribute a
++#   modified version of the Autoconf Macro, you may extend this special
++#   exception to the GPL to apply to your modified version as well.
++
++#serial 14
++
++AU_ALIAS([ACX_BLAS], [AX_BLAS])
++AC_DEFUN([AX_BLAS], [
 +AC_PREREQ(2.50)
 +AC_REQUIRE([AC_F77_LIBRARY_LDFLAGS])
-+acx_blas_ok=no
++AC_REQUIRE([AC_CANONICAL_HOST])
++ax_blas_ok=no
 +
 +AC_ARG_WITH(blas,
-+	[AC_HELP_STRING([--with-blas=<lib>], [use BLAS library <lib>])])
++	[AS_HELP_STRING([--with-blas=<lib>], [use BLAS library <lib>])])
 +case $with_blas in
 +	yes | "") ;;
-+	no) acx_blas_ok=disable ;;
++	no) ax_blas_ok=disable ;;
 +	-* | */* | *.a | *.so | *.so.* | *.o) BLAS_LIBS="$with_blas" ;;
 +	*) BLAS_LIBS="-l$with_blas" ;;
 +esac
@@ -351,191 +353,240 @@ new file mode 100644
 +AC_F77_FUNC(sgemm)
 +AC_F77_FUNC(dgemm)
 +
-+acx_blas_save_LIBS="$LIBS"
++ax_blas_save_LIBS="$LIBS"
 +LIBS="$LIBS $FLIBS"
 +
 +# First, check BLAS_LIBS environment variable
-+if test $acx_blas_ok = no; then
++if test $ax_blas_ok = no; then
 +if test "x$BLAS_LIBS" != x; then
 +	save_LIBS="$LIBS"; LIBS="$BLAS_LIBS $LIBS"
 +	AC_MSG_CHECKING([for $sgemm in $BLAS_LIBS])
-+	AC_TRY_LINK_FUNC($sgemm, [acx_blas_ok=yes], [BLAS_LIBS=""])
-+	AC_MSG_RESULT($acx_blas_ok)
++	AC_TRY_LINK_FUNC($sgemm, [ax_blas_ok=yes], [BLAS_LIBS=""])
++	AC_MSG_RESULT($ax_blas_ok)
 +	LIBS="$save_LIBS"
 +fi
 +fi
 +
 +# BLAS linked to by default?  (happens on some supercomputers)
-+if test $acx_blas_ok = no; then
++if test $ax_blas_ok = no; then
 +	save_LIBS="$LIBS"; LIBS="$LIBS"
-+	AC_CHECK_FUNC($sgemm, [acx_blas_ok=yes])
++	AC_MSG_CHECKING([if $sgemm is being linked in already])
++	AC_TRY_LINK_FUNC($sgemm, [ax_blas_ok=yes])
++	AC_MSG_RESULT($ax_blas_ok)
 +	LIBS="$save_LIBS"
 +fi
 +
++# BLAS in OpenBLAS library? (http://xianyi.github.com/OpenBLAS/)
++if test $ax_blas_ok = no; then
++	AC_CHECK_LIB(openblas, $sgemm, [ax_blas_ok=yes
++			                BLAS_LIBS="-lopenblas"])
++fi
++
 +# BLAS in ATLAS library? (http://math-atlas.sourceforge.net/)
-+if test $acx_blas_ok = no; then
++if test $ax_blas_ok = no; then
 +	AC_CHECK_LIB(atlas, ATL_xerbla,
 +		[AC_CHECK_LIB(f77blas, $sgemm,
 +		[AC_CHECK_LIB(cblas, cblas_dgemm,
-+			[acx_blas_ok=yes
++			[ax_blas_ok=yes
 +			 BLAS_LIBS="-lcblas -lf77blas -latlas"],
 +			[], [-lf77blas -latlas])],
 +			[], [-latlas])])
 +fi
 +
 +# BLAS in PhiPACK libraries? (requires generic BLAS lib, too)
-+if test $acx_blas_ok = no; then
++if test $ax_blas_ok = no; then
 +	AC_CHECK_LIB(blas, $sgemm,
 +		[AC_CHECK_LIB(dgemm, $dgemm,
 +		[AC_CHECK_LIB(sgemm, $sgemm,
-+			[acx_blas_ok=yes; BLAS_LIBS="-lsgemm -ldgemm -lblas"],
++			[ax_blas_ok=yes; BLAS_LIBS="-lsgemm -ldgemm -lblas"],
 +			[], [-lblas])],
 +			[], [-lblas])])
 +fi
 +
++# BLAS in Intel MKL library?
++if test $ax_blas_ok = no; then
++	# MKL for gfortran
++	if test x"$ac_cv_fc_compiler_gnu" = xyes; then
++		# 64 bit
++		if test $host_cpu = x86_64; then
++			AC_CHECK_LIB(mkl_gf_lp64, $sgemm,
++			[ax_blas_ok=yes;BLAS_LIBS="-lmkl_gf_lp64 -lmkl_sequential -lmkl_core -lpthread"],,
++			[-lmkl_gf_lp64 -lmkl_sequential -lmkl_core -lpthread])
++		# 32 bit
++		elif test $host_cpu = i686; then
++			AC_CHECK_LIB(mkl_gf, $sgemm,
++				[ax_blas_ok=yes;BLAS_LIBS="-lmkl_gf -lmkl_sequential -lmkl_core -lpthread"],,
++				[-lmkl_gf -lmkl_sequential -lmkl_core -lpthread])
++		fi
++	# MKL for other compilers (Intel, PGI, ...?)
++	else
++		# 64-bit
++		if test $host_cpu = x86_64; then
++			AC_CHECK_LIB(mkl_intel_lp64, $sgemm,
++				[ax_blas_ok=yes;BLAS_LIBS="-lmkl_intel_lp64 -lmkl_sequential -lmkl_core -lpthread"],,
++				[-lmkl_intel_lp64 -lmkl_sequential -lmkl_core -lpthread])
++		# 32-bit
++		elif test $host_cpu = i686; then
++			AC_CHECK_LIB(mkl_intel, $sgemm,
++				[ax_blas_ok=yes;BLAS_LIBS="-lmkl_intel -lmkl_sequential -lmkl_core -lpthread"],,
++				[-lmkl_intel -lmkl_sequential -lmkl_core -lpthread])
++		fi
++	fi
++fi
++# Old versions of MKL
++if test $ax_blas_ok = no; then
++	AC_CHECK_LIB(mkl, $sgemm, [ax_blas_ok=yes;BLAS_LIBS="-lmkl -lguide -lpthread"],,[-lguide -lpthread])
++fi
++
++# BLAS in Apple vecLib library?
++if test $ax_blas_ok = no; then
++	save_LIBS="$LIBS"; LIBS="-framework vecLib $LIBS"
++	AC_MSG_CHECKING([for $sgemm in -framework vecLib])
++	AC_TRY_LINK_FUNC($sgemm, [ax_blas_ok=yes;BLAS_LIBS="-framework vecLib"])
++	AC_MSG_RESULT($ax_blas_ok)
++	LIBS="$save_LIBS"
++fi
++
 +# BLAS in Alpha CXML library?
-+if test $acx_blas_ok = no; then
-+	AC_CHECK_LIB(cxml, $sgemm, [acx_blas_ok=yes;BLAS_LIBS="-lcxml"])
++if test $ax_blas_ok = no; then
++	AC_CHECK_LIB(cxml, $sgemm, [ax_blas_ok=yes;BLAS_LIBS="-lcxml"])
 +fi
 +
 +# BLAS in Alpha DXML library? (now called CXML, see above)
-+if test $acx_blas_ok = no; then
-+	AC_CHECK_LIB(dxml, $sgemm, [acx_blas_ok=yes;BLAS_LIBS="-ldxml"])
++if test $ax_blas_ok = no; then
++	AC_CHECK_LIB(dxml, $sgemm, [ax_blas_ok=yes;BLAS_LIBS="-ldxml"])
 +fi
 +
 +# BLAS in Sun Performance library?
-+if test $acx_blas_ok = no; then
++if test $ax_blas_ok = no; then
 +	if test "x$GCC" != xyes; then # only works with Sun CC
 +		AC_CHECK_LIB(sunmath, acosp,
 +			[AC_CHECK_LIB(sunperf, $sgemm,
-+        			[BLAS_LIBS="-xlic_lib=sunperf -lsunmath"
-+                                 acx_blas_ok=yes],[],[-lsunmath])])
++				[BLAS_LIBS="-xlic_lib=sunperf -lsunmath"
++                                 ax_blas_ok=yes],[],[-lsunmath])])
 +	fi
 +fi
 +
 +# BLAS in SCSL library?  (SGI/Cray Scientific Library)
-+if test $acx_blas_ok = no; then
-+	AC_CHECK_LIB(scs, $sgemm, [acx_blas_ok=yes; BLAS_LIBS="-lscs"])
++if test $ax_blas_ok = no; then
++	AC_CHECK_LIB(scs, $sgemm, [ax_blas_ok=yes; BLAS_LIBS="-lscs"])
 +fi
 +
 +# BLAS in SGIMATH library?
-+if test $acx_blas_ok = no; then
++if test $ax_blas_ok = no; then
 +	AC_CHECK_LIB(complib.sgimath, $sgemm,
-+		     [acx_blas_ok=yes; BLAS_LIBS="-lcomplib.sgimath"])
++		     [ax_blas_ok=yes; BLAS_LIBS="-lcomplib.sgimath"])
 +fi
 +
 +# BLAS in IBM ESSL library? (requires generic BLAS lib, too)
-+if test $acx_blas_ok = no; then
++if test $ax_blas_ok = no; then
 +	AC_CHECK_LIB(blas, $sgemm,
 +		[AC_CHECK_LIB(essl, $sgemm,
-+			[acx_blas_ok=yes; BLAS_LIBS="-lessl -lblas"],
++			[ax_blas_ok=yes; BLAS_LIBS="-lessl -lblas"],
 +			[], [-lblas $FLIBS])])
 +fi
 +
 +# Generic BLAS library?
-+if test $acx_blas_ok = no; then
-+	AC_CHECK_LIB(blas, $sgemm, [acx_blas_ok=yes; BLAS_LIBS="-lblas"])
++if test $ax_blas_ok = no; then
++	AC_CHECK_LIB(blas, $sgemm, [ax_blas_ok=yes; BLAS_LIBS="-lblas"])
 +fi
 +
 +AC_SUBST(BLAS_LIBS)
 +
-+LIBS="$acx_blas_save_LIBS"
++LIBS="$ax_blas_save_LIBS"
 +
 +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
-+if test x"$acx_blas_ok" = xyes; then
++if test x"$ax_blas_ok" = xyes; then
 +        ifelse([$1],,AC_DEFINE(HAVE_BLAS,1,[Define if you have a BLAS library.]),[$1])
 +        :
 +else
-+        acx_blas_ok=no
++        ax_blas_ok=no
 +        $2
 +fi
-+])dnl ACX_BLAS
-diff --git a/acx_lapack.m4 b/acx_lapack.m4
++])dnl AX_BLAS
+diff --git a/ax_lapack.m4 b/ax_lapack.m4
 new file mode 100644
 --- /dev/null
-+++ b/acx_lapack.m4
-@@ -0,0 +1,133 @@
-+##### http://autoconf-archive.cryp.to/acx_lapack.html
++++ b/ax_lapack.m4
+@@ -0,0 +1,131 @@
++# ===========================================================================
++#         http://www.gnu.org/software/autoconf-archive/ax_lapack.html
++# ===========================================================================
 +#
 +# SYNOPSIS
 +#
-+#   ACX_LAPACK([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
++#   AX_LAPACK([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
 +#
 +# DESCRIPTION
 +#
-+#   This macro looks for a library that implements the LAPACK
-+#   linear-algebra interface (see http://www.netlib.org/lapack/). On
-+#   success, it sets the LAPACK_LIBS output variable to hold the
-+#   requisite library linkages.
++#   This macro looks for a library that implements the LAPACK linear-algebra
++#   interface (see http://www.netlib.org/lapack/). On success, it sets the
++#   LAPACK_LIBS output variable to hold the requisite library linkages.
 +#
 +#   To link with LAPACK, you should link with:
 +#
-+#       $LAPACK_LIBS $BLAS_LIBS $LIBS $FLIBS
-+#
-+#   in that order. BLAS_LIBS is the output variable of the ACX_BLAS
-+#   macro, called automatically. FLIBS is the output variable of the
-+#   AC_F77_LIBRARY_LDFLAGS macro (called if necessary by ACX_BLAS), and
-+#   is sometimes necessary in order to link with F77 libraries. Users
-+#   will also need to use AC_F77_DUMMY_MAIN (see the autoconf manual),
-+#   for the same reason.
++#     $LAPACK_LIBS $BLAS_LIBS $LIBS $FLIBS
 +#
-+#   The user may also use --with-lapack=<lib> in order to use some
-+#   specific LAPACK library <lib>. In order to link successfully,
-+#   however, be aware that you will probably need to use the same
-+#   Fortran compiler (which can be set via the F77 env. var.) as was
-+#   used to compile the LAPACK and BLAS libraries.
++#   in that order. BLAS_LIBS is the output variable of the AX_BLAS macro,
++#   called automatically. FLIBS is the output variable of the
++#   AC_F77_LIBRARY_LDFLAGS macro (called if necessary by AX_BLAS), and is
++#   sometimes necessary in order to link with F77 libraries. Users will also
++#   need to use AC_F77_DUMMY_MAIN (see the autoconf manual), for the same
++#   reason.
 +#
-+#   ACTION-IF-FOUND is a list of shell commands to run if a LAPACK
-+#   library is found, and ACTION-IF-NOT-FOUND is a list of commands to
-+#   run it if it is not found. If ACTION-IF-FOUND is not specified, the
-+#   default action will define HAVE_LAPACK.
++#   The user may also use --with-lapack=<lib> in order to use some specific
++#   LAPACK library <lib>. In order to link successfully, however, be aware
++#   that you will probably need to use the same Fortran compiler (which can
++#   be set via the F77 env. var.) as was used to compile the LAPACK and BLAS
++#   libraries.
 +#
-+# LAST MODIFICATION
++#   ACTION-IF-FOUND is a list of shell commands to run if a LAPACK library
++#   is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
++#   is not found. If ACTION-IF-FOUND is not specified, the default action
++#   will define HAVE_LAPACK.
 +#
-+#   2007-07-29
++# LICENSE
 +#
-+# COPYLEFT
++#   Copyright (c) 2009 Steven G. Johnson <stevenj@alum.mit.edu>
 +#
-+#   Copyright (c) 2007 Steven G. Johnson <stevenj@alum.mit.edu>
-+#
-+#   This program is free software: you can redistribute it and/or
-+#   modify it under the terms of the GNU General Public License as
-+#   published by the Free Software Foundation, either version 3 of the
-+#   License, or (at your option) any later version.
++#   This program is free software: you can redistribute it and/or modify it
++#   under the terms of the GNU General Public License as published by the
++#   Free Software Foundation, either version 3 of the License, or (at your
++#   option) any later version.
 +#
 +#   This program is distributed in the hope that it will be useful, but
 +#   WITHOUT ANY WARRANTY; without even the implied warranty of
-+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-+#   General Public License for more details.
-+#
-+#   You should have received a copy of the GNU General Public License
-+#   along with this program. If not, see
-+#   <http://www.gnu.org/licenses/>.
-+#
-+#   As a special exception, the respective Autoconf Macro's copyright
-+#   owner gives unlimited permission to copy, distribute and modify the
-+#   configure scripts that are the output of Autoconf when processing
-+#   the Macro. You need not follow the terms of the GNU General Public
-+#   License when using or distributing such scripts, even though
-+#   portions of the text of the Macro appear in them. The GNU General
-+#   Public License (GPL) does govern all other use of the material that
-+#   constitutes the Autoconf Macro.
-+#
-+#   This special exception to the GPL applies to versions of the
-+#   Autoconf Macro released by the Autoconf Macro Archive. When you
-+#   make and distribute a modified version of the Autoconf Macro, you
-+#   may extend this special exception to the GPL to apply to your
-+#   modified version as well.
-+
-+AC_DEFUN([ACX_LAPACK], [
-+AC_REQUIRE([ACX_BLAS])
-+acx_lapack_ok=no
++#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
++#   Public License for more details.
++#
++#   You should have received a copy of the GNU General Public License along
++#   with this program. If not, see <http://www.gnu.org/licenses/>.
++#
++#   As a special exception, the respective Autoconf Macro's copyright owner
++#   gives unlimited permission to copy, distribute and modify the configure
++#   scripts that are the output of Autoconf when processing the Macro. You
++#   need not follow the terms of the GNU General Public License when using
++#   or distributing such scripts, even though portions of the text of the
++#   Macro appear in them. The GNU General Public License (GPL) does govern
++#   all other use of the material that constitutes the Autoconf Macro.
++#
++#   This special exception to the GPL applies to versions of the Autoconf
++#   Macro released by the Autoconf Archive. When you make and distribute a
++#   modified version of the Autoconf Macro, you may extend this special
++#   exception to the GPL to apply to your modified version as well.
++
++#serial 7
++
++AU_ALIAS([ACX_LAPACK], [AX_LAPACK])
++AC_DEFUN([AX_LAPACK], [
++AC_REQUIRE([AX_BLAS])
++ax_lapack_ok=no
 +
 +AC_ARG_WITH(lapack,
-+        [AC_HELP_STRING([--with-lapack=<lib>], [use LAPACK library <lib>])])
++        [AS_HELP_STRING([--with-lapack=<lib>], [use LAPACK library <lib>])])
 +case $with_lapack in
 +        yes | "") ;;
-+        no) acx_lapack_ok=disable ;;
++        no) ax_lapack_ok=disable ;;
 +        -* | */* | *.a | *.so | *.so.* | *.o) LAPACK_LIBS="$with_lapack" ;;
 +        *) LAPACK_LIBS="-l$with_lapack" ;;
 +esac
@@ -544,35 +595,36 @@ new file mode 100644
 +AC_F77_FUNC(cheev)
 +
 +# We cannot use LAPACK if BLAS is not found
-+if test "x$acx_blas_ok" != xyes; then
-+        acx_lapack_ok=noblas
++if test "x$ax_blas_ok" != xyes; then
++        ax_lapack_ok=noblas
++        LAPACK_LIBS=""
 +fi
 +
 +# First, check LAPACK_LIBS environment variable
 +if test "x$LAPACK_LIBS" != x; then
 +        save_LIBS="$LIBS"; LIBS="$LAPACK_LIBS $BLAS_LIBS $LIBS $FLIBS"
 +        AC_MSG_CHECKING([for $cheev in $LAPACK_LIBS])
-+        AC_TRY_LINK_FUNC($cheev, [acx_lapack_ok=yes], [LAPACK_LIBS=""])
-+        AC_MSG_RESULT($acx_lapack_ok)
++        AC_TRY_LINK_FUNC($cheev, [ax_lapack_ok=yes], [LAPACK_LIBS=""])
++        AC_MSG_RESULT($ax_lapack_ok)
 +        LIBS="$save_LIBS"
-+        if test acx_lapack_ok = no; then
++        if test $ax_lapack_ok = no; then
 +                LAPACK_LIBS=""
 +        fi
 +fi
 +
 +# LAPACK linked to by default?  (is sometimes included in BLAS lib)
-+if test $acx_lapack_ok = no; then
++if test $ax_lapack_ok = no; then
 +        save_LIBS="$LIBS"; LIBS="$LIBS $BLAS_LIBS $FLIBS"
-+        AC_CHECK_FUNC($cheev, [acx_lapack_ok=yes])
++        AC_CHECK_FUNC($cheev, [ax_lapack_ok=yes])
 +        LIBS="$save_LIBS"
 +fi
 +
 +# Generic LAPACK library?
 +for lapack in lapack lapack_rs6k; do
-+        if test $acx_lapack_ok = no; then
++        if test $ax_lapack_ok = no; then
 +                save_LIBS="$LIBS"; LIBS="$BLAS_LIBS $LIBS"
 +                AC_CHECK_LIB($lapack, $cheev,
-+                    [acx_lapack_ok=yes; LAPACK_LIBS="-l$lapack"], [], [$FLIBS])
++                    [ax_lapack_ok=yes; LAPACK_LIBS="-l$lapack"], [], [$FLIBS])
 +                LIBS="$save_LIBS"
 +        fi
 +done
@@ -580,101 +632,101 @@ new file mode 100644
 +AC_SUBST(LAPACK_LIBS)
 +
 +# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
-+if test x"$acx_lapack_ok" = xyes; then
++if test x"$ax_lapack_ok" = xyes; then
 +        ifelse([$1],,AC_DEFINE(HAVE_LAPACK,1,[Define if you have LAPACK library.]),[$1])
 +        :
 +else
-+        acx_lapack_ok=no
++        ax_lapack_ok=no
 +        $2
 +fi
-+])dnl ACX_LAPACK
++])dnl AX_LAPACK
 diff --git a/configure.ac b/configure.ac
 new file mode 100644
 --- /dev/null
 +++ b/configure.ac
 @@ -0,0 +1,92 @@
-+AC_PREREQ([2.68])
-+AC_INIT([SPQR],[1.2.2],[davis@cise.ufl.edu])
++#                                               -*- Autoconf -*-
++# Process this file with autoconf to produce a configure script.
++
++AC_PREREQ([2.69])
++AC_INIT([SPQR],[1.3.1],[DrTimothyAldenDavis@gmail.com],[spqr],[http://www.suitesparse.com/])
 +AC_CONFIG_SRCDIR([Source/spqr_kernel.cpp])
-+AC_CONFIG_HEADER([config.h])
++AC_CONFIG_HEADERS([config.h])
 +AM_INIT_AUTOMAKE([foreign])
 +LT_INIT
 +
++# Checks for programs.
 +AC_PROG_INSTALL
 +AC_PROG_F77
 +AC_PROG_CC
 +AC_PROG_CXX
++AC_LANG([C++])
 +
-+AC_MSG_CHECKING([whether to use the CHOLMOD Partition module])
-+AC_ARG_WITH([cholmod-partition],
++AC_MSG_CHECKING([whether to use expert routines])
++AC_ARG_ENABLE([expert],
 +	[AS_HELP_STRING(
-+		[--with-cholmod-partition],
-+		[Use METIS in the CHOLMOD partition module for partitioning @<:@default=yes@:>@])],
-+	[with_cholmod_partition=$withval],
-+	[with_cholmod_partition="yes"])
-+AC_MSG_RESULT([$with_cholmod_partition])
++		[--disable-expert],
++		[compile without the min 2-norm solution option])],
++	[expert=$enableval],
++	[expert="yes"])
++AC_MSG_RESULT([$expert])
 +
 +AC_MSG_CHECKING([whether to use tbb])
 +AC_ARG_WITH([tbb],
 +	[AS_HELP_STRING(
-+		[--with-tbb],
-+		[Use Intel Threading Building Blocks for multithreading @<:@default=yes@:>@])],
-+	[with_tbb=$withval],
-+	[with_tbb="yes"])
-+AC_MSG_RESULT([$with_tbb])
-+
-+if test "x$with_cholmod_partition" = "xno"; then
-+	AC_DEFINE([NPARTITION], [], [Define if CHOLMOD was compiled without the Partition module])
-+	AC_SUBST([SPQR_NPARTITION], ["-DNPARTITION"])
-+fi
-+
-+if test "x$with_tbb" = "xyes"; then
-+	AC_DEFINE([HAVE_TBB], [], [Define to compile with Threading Building Blocks])
-+	AC_SUBST([SPQR_HAVE_TBB], ["-DHAVE_TBB"])
-+fi
++		[--without-tbb],
++		[do not use Intel Threading Building Blocks for multithreading])],
++	[tbb=$withval],
++	[tbb="yes"])
++AC_MSG_RESULT([$tbb])
 +
 +LIBS_SAVED=$LIBS
 +
++# Checks for libraries.
 +AC_CHECK_LIB([m], [sqrt])
 +
-+AC_CHECK_HEADERS([float.h stdlib.h sys/time.h])
-+
-+sinclude([acx_blas.m4])
-+sinclude([acx_lapack.m4])
-+ACX_LAPACK
-+
-+if test "x$BLAS_LIBS" = "x"; then
++sinclude([ax_blas.m4])
++AX_BLAS
++if test "x$ax_blas_ok" != "xyes"; then
 +	AC_MSG_ERROR([cannot find blas])
 +fi
 +
-+if test "x$LAPACK_LIBS" = "x"; then
++sinclude([ax_lapack.m4])
++AX_LAPACK
++if test "x$ax_lapack_ok" != "xyes"; then
 +	AC_MSG_ERROR([cannot find lapack])
 +fi
 +
 +PKG_PROG_PKG_CONFIG
-+PKG_CHECK_MODULES([UFCONFIG],[ufconfig],
++PKG_CHECK_MODULES([SUITESPARSECONFIG],[suitesparseconfig],
 +	[],
-+	[AC_MSG_ERROR([cannot find ufconfig])])
++	[AC_MSG_ERROR([cannot find suitesparseconfig])])
 +PKG_CHECK_MODULES([CHOLMOD],[cholmod],
 +	[],
 +	[AC_MSG_ERROR([cannot find cholmod])])
 +
-+if test "x$with_tbb" = "xyes"; then
-+	AC_CHECK_HEADERS([tbb/task.h])
-+	AC_SUBST([TBB_CFLAGS], [""])
-+	AC_SUBST([TBB_LIBS], ["-ltbb"])
++# Checks for header files.
++AC_CHECK_HEADERS([float.h stdlib.h])
++
++if test "x$tbb" = "xyes"; then
++	AC_CHECK_HEADERS([tbb/task_scheduler_init.h tbb/task.h])
 +fi
 +
-+AC_HEADER_STDBOOL
-+AC_C_INLINE
++# Checks for typedefs, structures, and compiler characteristics.
 +AC_TYPE_SIZE_T
 +
-+AC_CHECK_FUNCS([clock_gettime sqrt])
++# Checks for library functions.
++AC_CHECK_FUNCS([sqrt])
 +
 +LIBS=$LIBS_SAVED
 +
-+AM_CONDITIONAL([CHOLMOD_PARTITION], [test "x$with_cholmod_partition" = "xyes"])
-+AM_CONDITIONAL([WITH_TBB], [test "x$with_tbb" = "xyes"])
++if test "x$tbb" = "xyes"; then
++	AC_SUBST([TBB_CFLAGS], [""])
++	AC_SUBST([TBB_LIBS], ["-ltbb"])
++fi
++
++AM_CONDITIONAL([EXPERT], [test "x$expert" = "xyes"])
++AM_CONDITIONAL([TBB], [test "x$tbb" = "xyes"])
 +
 +AC_CONFIG_FILES([
 +	spqr.pc
@@ -689,7 +741,7 @@ diff --git a/spqr.pc.in b/spqr.pc.in
 new file mode 100644
 --- /dev/null
 +++ b/spqr.pc.in
-@@ -0,0 +1,12 @@
+@@ -0,0 +1,13 @@
 +prefix=@prefix@
 +exec_prefix=@exec_prefix@
 +libdir=@libdir@
@@ -698,7 +750,8 @@ new file mode 100644
 +Name: @PACKAGE_NAME@
 +Description: Multifrontal sparse QR factorization
 +Version: @PACKAGE_VERSION@
-+Requires.private: cholmod ufconfig
++URL: @PACKAGE_URL@
++Requires.private: cholmod suitesparseconfig
 +Libs: -L${libdir} -lspqr
 +Libs.private: @TBB_LIBS@ @LAPACK_LIBS@ @BLAS_LIBS@ -lm
 +Cflags: -I${includedir}/spqr