If we have checked out a newer Eigen3 directory in a sibling directory
to ours, assume that this is because the system version is obsolete and
that we want to use this one instead.
Eigen3 is a template-library, so we must compile the source code
directly together with ours instead of linking to a library.
If the build script gives us the location of a "built" Eigen3,
meaning a directory in which CMake has been run, locate the true
source directory from the cache entries.
The previous version may have ended up in lib64/ instead of lib/;
now we remove the arch-specific suffix from the path, and always
use the no-arch version.
dune.module does not contain any paths to architecture-specific
binaries. It is therefore always installed in no-arch lib/ directory.
Thus, there is no need to have a variable for this, and there was
no other users of this variable either.
If Boost is installed in say /usr/include/boost141 and
/usr/lib64/boost141, then there is no root you can specify to pick
them both up. However, whereas Autotools uses --with-boost and
--with-boost-libdir, FindBoost in CMake changes to using two different
variables: BOOST_INCLUDEDIR and BOOST_LIBRARYDIR. Using the header
directory for BOOST_ROOT will not work (in particularily not with
old CMake versions).
CMake does not like that you specify the compiler with the environment
variables, instead preferring that you set them as cache variables.
This layer translate between the names of the the two.
Header and library directory may be specified separately by using the
variables e.g. OPM_CORE_INCLUDE_DIR and OPM_CORE_LIB_DIR. These override
even the OPM_CORE_ROOT. This allows us to use a backported version which
uses versioned directory names.
If the option USE_VERSIONED_DIR is set to ON (default is OFF), then
most files are installed in a ${suite}-${label}/ subdirectory
(e.g. header files go in "/usr/include/opm-2013.03/"). This enables
us to easily install backports of newer versions on systems which
have a system package for an older one, without getting conflicts.
Getting uppercase of a string can be done in a way that is compatible
with Bash 3.2. This creates a dependency on the `tr` utility, but I
reckon it will/can be available everywhere Bash 3.2 is.
If we are using the Apple toolchain on MacOS X, we must use the
newer runtime and not the old GCC 4.2 fork, in order to get the
C++11 library features (such as std::shared_ptr).
There is no SuiteSparse headers or libraries in
/System/Library/Frameworks/Accelerate.framework on MacOS X, so adding
this directive won't contribute anything other than compiler warnings.
The earlier code assumed that the version information always follows
the full file path; this code splits the path up into various parts
so that this may be changed.
for me, it was completely broken. (it worked fine if you did not want
to use it, though.) Now it (hopefully) follows the standard OPM
variable naming conventions, allows to use the internal SuperLU BLAS
library, and works fine if superLU is not installed on a system-wide
basis.
v2: cache the POST_2005 variable to make writing it to config.h more
reliable (on my kubuntu 13.04 system it did not work without it)
v3: re-add a proper "post 2005" check from newer versions of the dune tests
Seems like I forgot to include the "CheckCSourceCompiles" macro before
using it. Since it worked for me before, I'm wondering what made this
happen. Anyway, it should now work correctly in all cases.
Some features, such as the Fortran wrappers, are enabled by options,
and it may be usable to have those set in a common definition file.
However, as these features are included conditionally based on use,
their option variables may not exist in other projects, giving a CMake
warning for them.
Here we list such variables too. Reading them at the end corresponds
to the Autotools convention of ignoring unknown --enable-xxx options.
v2: incorporate Roland's nitpicks (I hope)
v3: It was decided that it's better to change the default behavior
v4: make sure the CMake syntax is correct even if the value of the
variable contains spaces (if it contains double quotes it's a
different matter, but that's pretty much a corner case, IMHO)
v5: properly escape backslash and double quote characters in the cmake
syntax
The old version invoked a Fortran compiler to figure out the bindings
necessary to link to a Fortran function. This creates a dependency on
having a Fortran compiler, even though the project may not have any
Fortran source it needs to compile!
Also, the Fortran compiler that is installed on the system may not be
the same as was used to compile the library anyway, so we are not even
sure that this is correct!
Furthermore, FindLAPACK operates on the assumption that names in that
library is suffixed with a single underscore, so if that is not correct,
we won't find any of the functions in that library anyway!
Thus, this patch enables us to assume that appending an underscore is
the right thing to do without using the compiler. This option is off by
default, but can be activated with USE_UNDERSCORING=ON (named after the
GFortran option).
This puts a test into the ${project}-config.cmake file which warns
if the client project is built with a variable which is incompatible
with the build of opm-core.
Consider this minimal project:
cmake_minimum_required (VERSION 2.8)
set (HAVE_MPI 1)
find_package (opm-core)
If linked with `-Dopm-core_DIR=` path to an opm-core tree which is
build *without* MPI-support, this will issue a warning when building
the client project.
This doesn't catch all cases (if a variable isn't defined, we cannot
know if it is an omission or if it has intentionally been left blank),
but at least it catches some.
If we have a parallel ALUGrid, then we must also link with METIS. If
METIS is not available, then parallel ALUGrid should be disabled. If
we have a serial-only ALUGrid, then METIS is not required.
Setting CMAKE_DISABLE_FIND_PACKAGE_xxx flag should make find_package
not doing anything, but this does not seem to work with older versions
of CMake. Anyway, we can test this flag and make sure that we don't
call find_package in that case.
Also includes a check for both upper- and same-case versions of found
flag, as some modules, most notably Boost, does not set the upper-case
version of their _FOUND flag; this tests for both.
Boost does not set the BOOST_FOUND variable to indicate that the
package is found (as it would if it had used the usual routine
find_package_handle_standard_args), but rather Boost_FOUND. This
patch tests for that condition, and print some more helpful debug
messages if a prerequisite is missing.
If an optional package require further packages, those packages should
not be marked as REQUIRED because CMake will then terminate the
configuration if it is not found (although it is transitively optional).
Conversely, we should be able to specify REQUIRED prerequisites for
REQUIRED packages and have a failure cascade up to termination.
This changeset allows us to specify REQUIRED or not in the list of
prerequisites, and have OpmPackage sort of whether it should be honored
or not.
If it is already found, most packages sets a flag that makes it exit
immediately anyway. We usually cannot rerun find_package to get another
combinations of modules. Here we check the flag before we start looking
for the package to avoid the endless stream of messages.
The modules declare which configuration variables they need to have
present in config.h, not only their own but also defined in projects
using them.
However, a lot of these variables are not actually used in the headers!
This changeset removes all HAVE_XXX variables which is not present in
any opm/*.h* file in these projects, and thus there is no need for the
client to specify.
Note that only the variables used by the module *itself* should be
listed; the build system will setup the complete list from the
prerequisites.
This define is used by the unit tests; there is no reason why it should
be on the list that must be provided by other projects that use our
headers (the other projects don't use our tests).
Currently this bootstrapper only finds the macros that are located
in the cmake/ tree in this project. Projects that don't carry their
own build system can specify search locations here.
Currently only the source tree is "searched", but the template could
be expanded to look in another/more locations (or be specified
explicitly on the command-line with a --with-opm-macros= option)
By default the configure script assumes that the source is located
relative to the script itself. By allowing this to be overridden, the
script can be shared by other projects, each passing their own location
as an extra parameter.
By using a separate variable for this we can easily grep for where
the build system depends on its own location, and also change the
policy regarding this later.
Note that there is no opm-macros module; this is a "psuedo"-module
which links to an additional one (currently, the one we're in)
