Add support for building shared/dynamic libraries

.gitignore

@@ -11,6 +11,8 @@
 *.mod
 *.smod
 *.o
+*.lo
+*.Plo
 *.dirstamp
 *.Po
 Makefile
@@ -43,6 +45,15 @@ examples/*/*.nek5000
 examples/*/*0.f0*
 *.chkp
 *.lst
+m4/libtool.m4
+m4/ltoptions.m4
+m4/ltsugar.m4
+m4/ltversion.m4
+m4/lt~obsolete.m4
+src/libneko.la
+src/.libs/libneko.la
+src/.libs/libneko.lai
+ltmain.sh
 
 # Ignore temporary files
 *~

Makefile.am

@@ -1,3 +1,4 @@
+ACLOCAL_AMFLAGS = -I m4 --install
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = neko.pc
 

configure.ac

@@ -5,8 +5,11 @@ AM_MAINTAINER_MODE
 AC_CONFIG_MACRO_DIR([m4])
 AC_CANONICAL_HOST
 AC_LANG(Fortran)
-AC_PROG_RANLIB
 AC_PROG_INSTALL
+AC_PROG_SED
+AC_PROG_MAKE_SET
+LT_INIT([disable-shared])
+LT_LANG([Fortran])
 
 AC_ARG_ENABLE(contrib,
               AS_HELP_STRING([--enable-contrib],[Compile various tools]), 

contrib/average_field_in_space/Makefile.am

@@ -1,5 +1,5 @@
 bin_PROGRAMS = average_field_in_space
 average_field_in_space_SOURCES = average_field_in_space.f90
-average_field_in_space_LDADD = $(top_builddir)/src/libneko.a
+average_field_in_space_LDADD = $(top_builddir)/src/libneko.la
 average_field_in_space_LDFLAGS = $(LDFLAGS) $(LIBS) 
 AM_FCFLAGS = -I@top_builddir@/src

contrib/average_fields_in_time/Makefile.am

@@ -1,5 +1,5 @@
 bin_PROGRAMS = average_fields_in_time
 average_fields_in_time_SOURCES = average_fields_in_time.f90
-average_fields_in_time_LDADD = $(top_builddir)/src/libneko.a
+average_fields_in_time_LDADD = $(top_builddir)/src/libneko.la
 average_fields_in_time_LDFLAGS = $(LDFLAGS) $(LIBS) 
 AM_FCFLAGS = -I@top_builddir@/src

contrib/calc_lift_from_field/Makefile.am

@@ -1,5 +1,5 @@
 bin_PROGRAMS = calc_lift_from_field
 calc_lift_from_field_SOURCES = calc_lift_from_field.f90
-calc_lift_from_field_LDADD = $(top_builddir)/src/libneko.a
+calc_lift_from_field_LDADD = $(top_builddir)/src/libneko.la
 calc_lift_from_field_LDFLAGS = $(LDFLAGS) $(LIBS) 
 AM_FCFLAGS = -I@top_builddir@/src

contrib/genmeshbox/Makefile.am

@@ -1,5 +1,5 @@
 bin_PROGRAMS = genmeshbox
 genmeshbox_SOURCES = genmeshbox.f90
-genmeshbox_LDADD = $(top_builddir)/src/libneko.a
+genmeshbox_LDADD = $(top_builddir)/src/libneko.la
 genmeshbox_LDFLAGS = $(LDFLAGS) $(LIBS) 
 AM_FCFLAGS = -I@top_builddir@/src

contrib/map_to_equidistant_1d/Makefile.am

@@ -1,5 +1,5 @@
 bin_PROGRAMS = map_to_equidistant_1d
 map_to_equidistant_1d_SOURCES = map_to_equidistant_1d.f90
-map_to_equidistant_1d_LDADD = $(top_builddir)/src/libneko.a
+map_to_equidistant_1d_LDADD = $(top_builddir)/src/libneko.la
 map_to_equidistant_1dLDFLAGS = $(LDFLAGS) $(LIBS) 
 AM_FCFLAGS = -I@top_builddir@/src

contrib/mesh_checker/Makefile.am

@@ -1,5 +1,5 @@
 bin_PROGRAMS = mesh_checker
 mesh_checker_SOURCES = mesh_checker.f90
-mesh_checker_LDADD = $(top_builddir)/src/libneko.a
+mesh_checker_LDADD = $(top_builddir)/src/libneko.la
 mesh_checker_LDFLAGS = $(LDFLAGS) $(LIBS) 
 AM_FCFLAGS = -I@top_builddir@/src

contrib/postprocess_fluid_stats/Makefile.am

@@ -1,5 +1,5 @@
 bin_PROGRAMS = postprocess_fluid_stats
 postprocess_fluid_stats_SOURCES = postprocess_fluid_stats.f90
-postprocess_fluid_stats_LDADD = $(top_builddir)/src/libneko.a
+postprocess_fluid_stats_LDADD = $(top_builddir)/src/libneko.la
 postprocess_fluid_stats_LDFLAGS = $(LDFLAGS) $(LIBS) 
 AM_FCFLAGS = -I@top_builddir@/src

contrib/prepart/Makefile.am

@@ -1,5 +1,5 @@
 bin_PROGRAMS = prepart
 prepart_SOURCES = prepart.f90
-prepart_LDADD = $(top_builddir)/src/libneko.a
+prepart_LDADD = $(top_builddir)/src/libneko.la
 prepart_LDFLAGS = $(LDFLAGS) $(LIBS) 
 AM_FCFLAGS = -I@top_builddir@/src

contrib/rea2nbin/Makefile.am

@@ -1,5 +1,5 @@
 bin_PROGRAMS = rea2nbin
 rea2nbin_SOURCES = rea2nbin.f90
-rea2nbin_LDADD = $(top_builddir)/src/libneko.a
+rea2nbin_LDADD = $(top_builddir)/src/libneko.la
 rea2nbin_LDFLAGS = $(LDFLAGS) $(LIBS) 
-AM_FCFLAGS = -I@top_builddir@/src
+AM_FCFLAGS = -I@top_builddir@/src

doc/pages/user-guide/installation.md

@@ -6,7 +6,7 @@ Neko can be installed in various ways, either building directly from source, man
 
 ## Building from source
 
-To build Neko, you will need a Fortran compiler supporting the Fortran-08 standard, autotools, pkg-config, a working MPI installation supporting the Fortran 2008 bindings (`mpi_f08`), BLAS/LAPACK and JSON-Fortran. Optional dependencies are PFunit, gslib and ParMETIS. 
+To build Neko, you will need a Fortran compiler supporting the Fortran-08 standard, autotools, libtool, pkg-config, a working MPI installation supporting the Fortran 2008 bindings (`mpi_f08`), BLAS/LAPACK and JSON-Fortran. Optional dependencies are PFunit, gslib and ParMETIS. 
 
 Follow the steps below to install the less common dependencies (e.g. JSON-Fortran).
 
@@ -108,6 +108,8 @@ Features are enabled and disabled by passing either `--enable-FEATURE[=arg]` or
 | `--enable-contrib`    | Compile various tools                                                                                                                 |
 | `--enable-device-mpi` | Enable device aware MPI                                                                                                               |
 | `--enable-openmp`     | Enable OpenMP                                                                                                                         |
+| `--enable-shared`     | Build shared libraries (default: no)                                                                                                  |
+| `--enable-static`     | Build static libraries (default: yes)                                                                                                 |
 
 Optional packages are controlled by passing either `--with-PACKAGE[=ARG]` or `--without-PACKAGE` to `configure`. A list of all supported optional packages are given in the table below.
 

regen.sh

@@ -1,6 +1,16 @@
 #!/bin/sh
 
 echo "Updating configuration..."
+echo "Running libtoolize"
+if which libtoolize > /dev/null 2>&1; then
+    libtoolize -i
+elif which glibtoolize > /dev/null 2>&1; then
+    glibtoolize -i
+else
+    echo "No libtoolize found on your system"
+    exit 1
+fi
+
 rm -fr autom4te.cache
 rm aclocal.m4