Add recognition of compiler version and prefix for clang.
Accommodate changes to version numbering scheme for GCC 5+ and clang 4+
- Minor number becomes patch, so excluded it from compiler prefix.
- Improves searching for Boost 1.69+ libraries built with GCC 5+ and
clang 4+, where library names are generated with compiler tag based on
major version only eg. -gcc5 for GC 5.5.0 or -clang6 for clang 6.0.0
- Follows up related changes in upcoming Boost 1.69
https://github.com/boostorg/build/pull/349
Dump detected compiler version in Boost_DEBUG message.
Replace use of CMAKE_COMPILER_IS_GNUCXX with CMAKE_CXX_COMPILER_ID.
Add missing vendor table entries for Clang and AppleClang to identify
them. Previously this worked only if Clang was also enabled as a C or
CXX compiler first because we used to copy the C compiler id. However,
that was removed by commit v3.13.0-rc1~44^2 (ASM: Search for full path
even when using C or C++ compiler, 2018-09-26).
Fixes: #18575
Add the system thread library to Boost_LIBRARIES when the boost thread
component has been found.
The Boost::thread imported target already pulls in Threads::Threads.
This changes does the same for projects using the Boost_LIBRARIES variable
instead.
Boost 1.66 and above built with `--layout=versioned` add an architecture
tag to the library file names. We already try to compute this tag
automatically when `CMAKE_CXX_COMPILER_ARCHITECTURE_ID` is available,
but that is currently not computed everywhere. Add an explicit
`Boost_ARCHITECTURE` option that a user can set to specify the
architecture tag.
Issue: #17701
The symbol "CHEEV", originally used to determine if a library provides
Fortran 95 wrappers for LAPACK, has been replaced by "cheev_f95". "CHEEV"
is provided by libmkl_intel_(i)lp64, which does not provide the generic
Fortran 95 wrappers. Instead, libmkl_lapack95_(i)lp64 does; one of the
specializations of the type-generic interfaces contained in that library
is "lapack_f95".
Also, FindLAPACK used libmkl_intel_(i)lp64 instead of the correct
libmkl_lapack95_(i)lp64 library for LAPACK95 functionality. This has
been fixed, too.
The symbol "SGEMM", originally used to determine if a library provides
Fortran 95 wrappers for BLAS, has been replaced by "sgemm_f95". "SGEMM"
is provided by libmkl_intel_(i)lp64, which does not provide the generic
Fortran 95 wrappers. Instead, libmkl_blas95_(i)lp does; one of the
specializations of the type-generic interfaces contained in that library
is "sgemm_f95".
Ext and External were used inconsistently in the code and the
docs. This change converts all uses of Ext to External, including
within variable names used by the generator.
Protobuf headers have dependencies on threads. On UNIX platforms this
requires linking to a threads library. We've long done this in the
`Protobuf_LIBRARIES` result variable. However, the imported targets
added by commit v3.9.0-rc1~81^2~2 (FindProtobuf: add targets,
2017-05-17) and commit v3.9.0-rc1~68^2 (FindProtobuf: Rename imported
targets to match upstream names, 2017-05-22) were missing a dependency
on threads.
Add the dependency to the imported targets, and to the variables
`Protobuf_LITE_LIBRARIES` and `Protobuf_PROTOC_LIBRARIES`. While this
did not seem to matter in practice for a long time, protobuf 3.6 throws
exceptions in some cases when threads are missing.
Fixes: #18533
Running flang with `-E` now ignores any `-o` option and always prints
preprocessed output to stdout. Use shell redirection to place it in a
file instead.
Fixes: #18497
Due to CMP0080, BundleUtilities can no longer be included at
configure-time. However, DeployQt4 contains some functions which
are meant to be used at configure-time, and some which are meant
to be used at install-time and use BundleUtilities. This change
breaks the file into two sections: common functions and install-time
functions. BundleUtilities is now only included at install-time,
thus fixing the policy warning.
Fixes: #18466
When `BISON_TARGET` is called with both
VERBOSE <extra-file> REPORT_FILE <file>
we add a custom command to copy `<file>` to `<extra-file>`. The change
in commit v3.7.1~10^2 (FindBISON: Do not rebuild every time when not
VERBOSE, 2016-11-14) incorrectly listed the extra file as an output of
the main bison invocation custom command, but it is actually produced by
the separate copy command. Fix the logic to always generate `<file>` as
an output of the bison command and `<extra-file>` as an output of the
copy command.
Fixes: #18433
Brad King