Enable LAPACK detection configuration

build/Makefile.am

 AUTOMAKE_OPTIONS=subdir-objects
-LDADD=libnptm/libnptm.la -L/usr/lib64 $(HDF5_LDFLAGS)
+LDADD=libnptm/libnptm.la -L/usr/lib64 ${HDF5_LDFLAGS} ${LAPACK_LDFLAGS}
 lib_LTLIBRARIES=libnptm/libnptm.la
 libnptm_libnptm_la_SOURCES=../src/libnptm/algebraic.cpp ../src/libnptm/clu_subs.cpp ../src/libnptm/Commons.cpp ../src/libnptm/Configuration.cpp ../src/libnptm/file_io.cpp ../src/libnptm/lapack_calls.cpp ../src/libnptm/logging.cpp ../src/libnptm/magma_calls.cpp ../src/libnptm/Parsers.cpp ../src/libnptm/sph_subs.cpp ../src/libnptm/tfrfme.cpp ../src/libnptm/TransitionMatrix.cpp ../src/libnptm/tra_subs.cpp ../src/libnptm/types.cpp
 bin_PROGRAMS=cluster/edfb_clu cluster/clu cluster/np_cluster sphere/edfb_sph sphere/sph sphere/np_sphere trapping/frfme trapping/lffft trapping/np_trapping

build/configure.ac

 # CAPABILITY TESTING MACROS
 m4_define(
   [M4_HDF5_LIB],
-	[cat > nptm_test_hdf5.cpp <<EOF
+  [
+    cat > nptm_test_hdf5.cpp <<EOF
 #include <hdf5.h>
 int main(int argc, char **argv) {
   hid_t file_id = 0;
@@ -14,9 +15,25 @@ EOF
     rm nptm_test_hdf5.cpp
     if test "x$TEST_HDF5_LIB" = "x0"; then
       rm nptm_test_hdf5
-	fi]
+    fi
+  ]
 )
 
+m4_define(
+  [M4_DETECT_LAPACK],
+  [
+    LAPACK_ROOT=$MKLROOT
+    if test "x$LAPACK_ROOT" != "x"; then
+      export LAPACK_INCLUDE=$(MKLROOT)/include
+      export LAPACK_LIB=$(MKLROOT)/lib
+      export LAPACK_LIBRARY="-Wl,--no-as-needed -lmkl_intel_ilp64 -lmkl_gnu_thread -lmkl_core -lgomp -lpthread -lm -ldl"
+    else
+      export LAPACK_INCLUDE=/usr/include
+      export LAPACK_LIB=/lib/x86_64-linux-gnu
+      export LAPACK_LIBRARY="-llapacke64"
+    fi
+  ]
+)
 # END CAPABILITY TESTING MACROS
 
 # autoconf setup initialization
@@ -35,62 +52,71 @@ AM_INIT_AUTOMAKE([-Wall -Werror foreign])
 AM_PROG_AR
 AC_ARG_ENABLE(
   [mpi],
-	[AS_HELP_STRING([--enable-mpi], [use MPI if available (default is yes)])],
+  [AS_HELP_STRING([--enable-mpi], [use MPI if available [default=yes]])],
   [
     if test "x$enableval" = "xno"; then
       if test "x$F77" = "xmpif90"; then
         gfortran --version > /dev/null
         if test "x$?" = "x0"; then
-		      export F77=gfortran
+          AC_SUBST([F77], [gfortran])
         fi
       fi
       if test "x$F77" = "xmpif90"; then
         f77 --version > /dev/null
         if test "x$?" = "x0"; then
-		      export F77=f77
+          #export F77=f77
+          AC_SUBST([F77], [f77])
         fi
       fi
       if test "x$CXX" = "xmpicxx"; then
         g++ --version > /dev/null
         if test "x$?" = "x0"; then
-		      export CXX=g++
+          #export CXX=g++
+          AC_SUBST([CXX], [g++])
         fi
       fi
       if test "x$CXX" = "xmpicxx"; then
         clang --version > /dev/null
         if test "x$?" = "x0"; then
-		      export CXX=clang
+          #export CXX=clang
+          AC_SUBST([CXX], [clang])
         fi
       fi
       if test "x$F77" = "x"; then
         gfortran --version > /dev/null
         if test "x$?" = "x0"; then
-		      export F77=gfortran
+          #export F77=gfortran
+          AC_SUBST([F77], [gfortran])
         fi
       fi
       if test "x$F77" = "x"; then
         f77 --version > /dev/null
         if test "x$?" = "x0"; then
-		      export F77=f77
+          #export F77=f77
+          AC_SUBST([F77], [f77])
         fi
       fi
       if test "x$CXX" = "x"; then
         g++ --version > /dev/null
         if test "x$?" = "x0"; then
-		      export CXX=g++
+          #export CXX=g++
+          AC_SUBST([CXX], [g++])
         fi
       fi
       if test "x$CXX" = "x"; then
         clang --version > /dev/null
         if test "x$?" = "x0"; then
-		      export CXX=clang
+          #export CXX=clang
+          AC_SUBST([CXX], [clang])
         fi
       fi
     else
       mpicxx --version > /dev/null
       if test "x$?" = "x0"; then
-		    export CXX=mpicxx
-		    export F77=mpif90
+        #export CXX=mpicxx
+        #export F77=mpif90
+        AC_SUBST([CXX], [mpicxx])
+        AC_SUBST([F77], [mpif90])
       else
         AC_MSG_ERROR(["MPI was enabled, but no MPI compiler was found!"])
       fi
@@ -100,28 +126,30 @@ AC_ARG_ENABLE(
     if test "x$CXX" = "x"; then
       mpicxx --version > /dev/null
       if test "x$?" = "x0"; then
-		    export CXX=mpicxx
-		    export F77=mpif90
+        #export CXX=mpicxx
+        #export F77=mpif90
+        AC_SUBST([CXX], [mpicxx])
+        AC_SUBST([F77], [mpif90])
       fi
     fi
     if test "x$CXX" = "x"; then
       g++ --version > /dev/null
       if test "x$?" = "x0"; then
-		    export CXX=g++
+        #export CXX=g++
+        AC_SUBST([CXX], [g++])
       fi
     fi
     if test "x$CXX" = "x"; then
       clang --version > /dev/null
       if test "x$?" = "x0"; then
-		    export CXX=clang
+        #export CXX=clang
+        AC_SUBST([CXX], [clang])
       fi
     fi
   ]
 )
-AC_SUBST([CXX])
-AC_PROG_CXX(CXX)
-AC_SUBST([F77])
-AC_PROG_F77([$F77 mpif90 gfortran f77])
+AC_PROG_CXX([$CXX])
+AC_PROG_F77([$F77])
 
 # Libtool initialization
 LT_INIT
@@ -129,17 +157,14 @@ LT_INIT
 # Environment setup
 AS_IF(
   [test "x$HDF5_INCLUDE" = "x"],
-	[export HDF5_INCLUDE=/usr/include/hdf5/serial],
-	[AC_MSG_NOTICE(["HDF5_INCLUDE=$HDF5_INCLUDE"])]
+  [AC_SUBST([HDF5_INCLUDE], ["/usr/include/hdf5/serial"])],
+  [AC_MSG_NOTICE([HDF5_INCLUDE=$(HDF5_INCLUDE)])]
 )
 AS_IF(
   [test "x$HDF5_LIB" = "x"],
-	[export HDF5_LIB=/usr/lib/x86_64-linux-gnu/hdf5/serial],
-	[AC_MSG_NOTICE(["HDF5_LIB=$HDF5_LIB"])]
+  [AC_SUBST([HDF5_LIB], ["/usr/lib/x86_64-linux-gnu/hdf5/serial"])],
+  [AC_MSG_NOTICE([HDF5_LIB=$(HDF5_LIB)])]
 )
-FFLAGS="-std=legacy -O3"
-CXXFLAGS="-O3 -ggdb -Wno-format-contains-nul -I $HDF5_INCLUDE"
-SUBDIRS="cluster libnptm sphere testing trapping"
 
 # Check for required headers
 AC_CHECK_HEADER(
@@ -152,12 +177,65 @@ AC_CHECK_HEADER(
 M4_HDF5_LIB
 AS_IF(
   [test "x$TEST_HDF5_LIB" = "x0"],
-	[export HDF5_LDFLAGS="-L${HDF5_LIB} -lhdf5"],
+  [AC_SUBST([HDF5_LDFLAGS], ["-L${HDF5_LIB} -lhdf5"])],
   [AC_MSG_ERROR(["HDF5 library not found!"])]
 )
-AC_SUBST([HDF5_LDFLAGS])
 
 # Configure the optional features
+M4_DETECT_LAPACK
+AS_IF(
+  [test "x$LAPACK_LIBRARY" != "x"],
+  [AC_MSG_NOTICE([LAPACK detected])],
+  [AC_MSG_NOTICE([No LAPACK found])]
+)
+
+AC_ARG_ENABLE(
+  [openmp],
+  [AS_HELP_STRING([--enable-openmp], [enable OpneMP multi-threading [default=yes]])],
+  [
+    if test "x$enableval" != "xno"; then
+      AC_SUBST([OMPFLAGS], ["-fopenmp"])
+    fi
+  ],
+  [
+    AC_SUBST([OMPFLAGS], ["-fopenmp"])
+  ]
+)
+
+AC_ARG_WITH(
+  [lapack],
+  [AS_HELP_STRING([--with-lapack], [use LAPACK @<:@default=check@:>@])],
+  [
+    if test "x$withval" = "xno"; then
+      AC_SUBST([LAPACK_FLAGS], [""])
+      AC_SUBST([LAPACK_LDFLAGS], [""])
+    fi
+  ],
+  [
+    if test "x$LAPACK_INCLUDE" != "x"; then
+      AC_SUBST([LAPACK_FLAGS], ["-DUSE_LAPACK -DLAPACK_ILP64 -DUSE_ILP64 -I${LAPACK_INCLUDE}"])
+      AC_SUBST([LAPACK_LDFLAGS], ["-L${LAPACK_LIB} ${LAPACK_LIBRARY}"])
+    fi
+  ]
+)
+
+AC_ARG_WITH(
+  [magma],
+  [AS_HELP_STRING([--with-magma], [use MAGMA @<:@default=check@:>@])],
+  [],
+  []
+)
+
+AC_ARG_ENABLE(
+  [ilp64],
+  [AS_HELP_STRING([--enable-ilp64], [use MAGMA @<:@default=check@:>@])],
+  [],
+  []
+)
+
+FFLAGS="-std=legacy -O3"
+CXXFLAGS="-O3 -ggdb -Wno-format-contains-nul -I$HDF5_INCLUDE $OMPFLAGS $LAPACK_FLAGS"
+SUBDIRS="cluster libnptm sphere testing trapping"
 
 # Send output to Makefiles
 AC_CONFIG_FILES([Makefile])