This reverts commit 5f053401.

I was a little hasty in cherry-picking this from the dune_enable_all_packages()
branch, as it needs some infrastructure from over there.

CMake exports the major and minor components of the module version, but
not the revision. This patch fixes that omission.

I was bitten again by not properly cleaning build directories
while testing build system features. With this patch, the feature
* builds the symlinks in finalize_project instead of dune_project
  Only there the existence of the subdirectories in the build tree
  is guaranteed.
* The globbing expression is sane again.
* Properly excludes build directories
* works with cmake 2.8 and 3.1, per-module or global out-of-source builds.

We got the workaround_9220 code from Eigen. Now we
use the code as the Eigen project does, see for
example their file lapack/CMakeLists.txt.
This fixes the Fortran detection with Visual Studio
2015 CTP 6.

Patching the dune core modules just to have the advantages of
symlinks to the source tree is a bad idea. The patch introduces
a check for the variable DUNE_SYMLINK_TO_SOURCE_TREE instead, which
enables the macro if set.

CMake 3.1 issued a lot of warnings because it tried to symlink:
- git specific subdirs that are not present in the build tree
- build directories that are a subdir of the source instead of a sibling

The change
- adds a symlink iff a CMakeLists file was found in the source dir.
- excludes such build directory.

Tarballs can be built using "make package_source". But they contain
all files from the source directory. There is a way to ignore files.

We assume anyway that stdint.h and memrory are provided. The
according macros are never used. They were probably provided
to stay as compatible to Autotools as possible.
This fixes FS#1605.

It is already printed as the comment of the custom command.

Felix Gruber authored 10 years ago and Christoph Grüninger committed 10 years ago

The install path for header files can be configured in CMake with the
variable ${CMAKE_INSTALL_INCLUDEDIR}.

Similar to last commit:
This macro was split off from DuneMacros.cmake in commit
e63ea0cf, but the new macro file was
not included in the list of installed modules.

Felix Gruber authored 10 years ago and Christoph Grüninger committed 10 years ago

This macro was split off from DuneMacros.cmake in commit
e63ea0cf, but the new macro file was
not included in the list of installed macros.

It seems the exclusion macros need to have a full list of headers
to work. This is hopefully the last commit...

The property must exist in order to have the exclusion macros work.
I only tested dune common which has no exclusions...

Thanks to Andreas Buhr for noticing!

As proposed in FS1584, make headercheck is now disabled by
default in cmake. This fact and how to enable it is printed
upon "make headercheck".

Apparently, that code never for executed/tested...

Ich a module is not updated to cmake yet, we can have the situation, that the core modules
are built using cmake, but used by autotools. When trying to detect a dune library, we either
explicitly stated the /blablabla/libdunefoo.la file if the the dependency was built using autools,
or used the '-ldunefoo -L/blablabla/' options. This failed with very subtle errors if dune was
also installed globally, e.g. a 2.3 from your favorite distribution. We fix this now in the same
way as we fixed it for autotools. If the module is local, we explicitly state the lib...
either as .la or as .a.

if the user has for some reason old la files from the autotools era,
these can lead to very subtle and hard to understand errors. We now
check for old la files and bail out in case some are found.

Together with the last patch, this fixes FS#1592.

[Typetraits][Compatibility] Provide partial backwards compatibility for is_indexable on old GCC versions

Older GCC versions have some nasty bugs related to SFINAE and indexing
with operator[]. This patch adds a configuration check for those
problems and a partial backwards compatibility hack for those older
compilers that is sufficient for our current use case in the VTK
writer.

GCC 4.4, I'm looking at you

is_indexable can be used to test whether a type can be indexed (via
operator[]).

Previously, the command vcsetup, which is executed on command 'all',  was not
listed on the help screen.

The file DuneMacros.cmake is very crowded. Macros that belong
together should be placed in a separate module in order to increase
the visibility of its documentation IMO.

This reverts commit 9f9bc5c0.

see FS#1576