Major refactoring for the building system.

* Custom M4 macro are replaced with those to be used in the new ICON building
  system.
* Removed cfortran.h: the mangling scheme for Fortran symbols is detected at
  the configure-time.
* The precious variables for setting flags resuired to enable external
  packages (e.g. MTIME_C_INCLUDE, MTIME_C_LIB, etc.) are renamed to *_CFLAGS
  and *_CLIBS to better reflect their purpose. If those variables are set as
  command-line arguments of the configure script, the script checks only the
  given values literally, i.e. the script does not try to append and check any
  additional linking or compilation flags.
* The definition of functions declared in yac_lapack_interface.h is moved
  to a separate file yac_lapack_interface.c. And the choice of the interface
  is made with a single preprocessor macro YAC_LAPACK_INTERFACE_ID.
* The default suffix for include files for libxml2 is
  <XML2_ROOT>/include/libxml2 instead of <XML2_ROOT>/include.
* The configure script argument '--without-mpi-pack-external' is renamed to
  '--disable-mpi-pack-external' to reflect that it belongs to the section
  'Optional Features' and not to 'Optional Packages'. If the usage of
  MPI_Pack_external is disabled, the corresponding configure-time tests are
  skipped.
* The configure script argument '--without-regard-for-quality' is renamed to
  '--enable-mpi-checks' (defaults to 'yes'). Previously, the argument allowed
  for ignoring the failures of the configure-time tests of MPI_Pack_external.
  Now the argument allows for skipping the tests at all when specifying a
  valid interactive MPI_LAUNCH command is not possible.
* MPI_LAUNCH does not have to be a full path to an MPI launcher executable
  anymore: the value of the variable is interpreted as a command.
* AR, ARFLAGS, and RANLIB are precious variable now and appear in the help
  message of the configure script.
* The configure script does not try to detect MPI libraries, it only checks
  whether they are available (see comments in configure.ac).

.gitignore

@@ -20,22 +20,10 @@ Makefile.in
 /examples/*.nc
 /examples/*.sh
 !/examples/toy_slurm_batch.sh
-/examples/*.txt
 /examples/*.xml
 /examples/*.xsd
-/input/*.csv
-/input/*.txt
-/input/*.xml
-!/input/OASIS3_MCT-comp1-grid1.xml
-!/input/OASIS3_MCT-comp2-grid2.xml
-!/input/OASIS3_MCT-comp3-grid3.xml
-!/input/OASIS3_MCT-comp3-grid4.xml
-!/input/OASIS3_MCT-comp3-grid5.xml
-!/input/OASIS3_MCT-comp3.xml
-!/input/OASIS3_MCT-comp4.xml
-!/input/cf-standard-name-table.xml
-!/input/component.xml
-/input/coupling.xsd
+/examples/mesh_compA_convex.txt
+/examples/mesh_compA_exact.txt
 /src/config.h
 /src/pkgconfig/yac.pc
 /src/stamp-h1

acinclude.m4

-m4_include([m4/ac_lang_program_fortran.m4])
-m4_include([m4/acx_lang_fortran_check_include.m4])
-m4_include([m4/acx_lang_c_check_include.m4])

clapack/INCLUDE/f2c.h

@@ -7,7 +7,7 @@
 #ifndef F2C_INCLUDE
 #define F2C_INCLUDE
 
-typedef long int integer;
+typedef int integer;
 typedef unsigned long int uinteger;
 typedef char *address;
 typedef short int shortint;

clapack/Makefile.am

@@ -5,9 +5,9 @@ CLEANFILES = sysdep1.h
 EXTRA_DIST = F2CLIBS/libf2c/sysdep1.h0
 
 sysdep1.h: F2CLIBS/libf2c/sysdep1.h0
-	$(AM_V_GEN)cp $^ $@
+	$(AM_V_GEN)cp $< $@
 
-AM_CPPFLAGS = -I$(top_srcdir)/clapack/INCLUDE
+AM_CPPFLAGS = -I$(srcdir)/INCLUDE
 
 libyac_clapack_a_SOURCES =        \
         BLAS/SRC/dcopy.c          \

config/checkdoc/mpi_pack_external/test_1.txt

+Your MPI library has a serious defect in its implementation
+of external32 data packing. This is the only serialization guaranteed to be
+portable across different MPI communicators. You can switch to the regular data
+packing routines with the configure argument "--disable-mpi-pack-external".
+
+Alternatively, you can disable this test with the configure argument
+"--disable-mpi-checks" but this might result into a non-working YAC build.

config/checkdoc/mpi_pack_external/test_2.txt

+test_1.txt
\ No newline at end of file

config/checkdoc/mpi_pack_external/test_3.txt

+test_1.txt
\ No newline at end of file

config/checkdoc/mpi_pack_external/test_4.txt

+test_1.txt
\ No newline at end of file

config/checkdoc/mpi_pack_external/test_5.txt

+test_1.txt
\ No newline at end of file

config/checkdoc/test_mpi_pack_external_1.txt

-Your MPI installation has a serious defect in its implementation of
-external32 packing of data. This is the only serialization guaranteed
-to be portable across different MPI communicators. You can elect to
-use the regular data packing routines instead, for which such
-portability is not guaranteed, but often works in practice with the
-configure argument --without-mpi-pack-external. Alternatively you can
-ignore the result of this test with the --without-regard-for-quality
-option but this will probably result in a non-working YAC build,
-i.e. multiple tests will fail.

config/checkdoc/test_mpi_pack_external_2.txt

-test_mpi_pack_external_1.txt
\ No newline at end of file

config/checkdoc/test_mpi_pack_external_3.txt

-test_mpi_pack_external_1.txt
\ No newline at end of file

config/checkdoc/test_mpi_pack_external_4.txt

-test_mpi_pack_external_1.txt
\ No newline at end of file

config/checkdoc/test_mpi_pack_external_5.txt

-test_mpi_pack_external_1.txt
\ No newline at end of file