Look for a C/C++ compiler pair from known toolchains on some platforms.
This makes it less likely that mismatched compilers will be found.
Check only if the environment variables CC and CXX are both empty.
Commit ff1f8d0b (Fix or cast more integer conversions in cmake) changed
a member type from int to size_t. Update the types of variables
compared to these values to be unsigned also.
Commit d84cbd0f (FindMPI: Parse mpicc flags more carefully, 2010-06-24)
broke parsing of '-L' flags appearing after '-Wl,' by expecting a
preceding space. Update the regular expression to allow '-Wl,-L' too.
Both possible result values need to be convertible to the same type.
Some compilers fail to recognize that they can construct std::string
from the empty string literal, so state it explicitly.
Since commit "Provide unix-sytle command line parsing" (2009-07-13) the
reference to KWSYS_C_HAS_PTRDIFF_T in System.c has been meaningless
because the macro was never passed to the compiler!
Separation by ',' only works in VS 2008 and below and does not work in
the PlayStation3 VS plugin. Separation by ';' works in VS 10 and all
prior versions.
Do not hard-code known BlueGene/L MPI libraries. We do not know their
location so the linker cannot find them without the proper -L search
path. The MPI compiler tells us about the libraries anyway, and if it
does not then the user can fix the problem locally by editing the
MPI_EXTRA_LIBRARY cache entry.
Change types of local variables, or casting, or re-arrange
expressions to get rid of "conversion may alter value" warnings
as seen on recent dashboard submissions from londinium.kitware.
If GIT_EXECUTABLE is not passed in, and is not available from
DartConfiguration.tcl or CTestConfiguration.ini, then make one
more last ditch attempt to get it from Update.xml, if there is
an Update.xml. For dashboards that have successfully done a
ctest_update call, there should be an Update.xml in the Testing
subdir of the binary tree. Parse that file for the git executable
recorded in the <UpdateCommand> element.
And make this test pass on those RogueResearch dashboard machines!
Make sure no one tries to use gcc 33 based tools to build CMake.
This is because a cpack test failed with a crash. The crash
seems to be caused by the stack checking code on by default in
OpenBSD. The crash is in some stl code. The problem is fixed
with newer gcc compilers on OpenBSD.
Extend the fix from commit 68c7d3e2 (FindMPI: Do not parse -l in middle
of library name, 2010-06-24). Parse -D, -I, -L, and -Wl only with
preceding spaces or at the beginning of the string.
ldd can return "not found" and we need to handle it correctly.
In that case, we extract only the name of the library instead of trying for its full path.
Some zlib.h files have ZLIB_VERSION "1.2.3.3" with 4 numbers instead of 3.
The regex is changed to grab the first 3 numbers.
It was slow because if it failed to find that string near the top of the file,
where it usually is, it would read the entire file.
We parse the output of 'mpicc -shome:link' to look for -l options
specifying libraries. Fix the parsing regex to avoid matching the
string '-l' in the middle of a library name.
Brad King
Zach Mullen
KWSys Robot
David Genest
David Cole
Clinton Stimpson
Bill Hoffman