As dumpbin.exe is no longer reliable for gcc libraries on MinGW because
it crashes on many common libraries like libgcc_s and libgfortran it is
now necessary too resort to using objdump for DLL dependency walking.
Using objdump has a secondary problem in that it generates a lot of
output for large libraries and causes fixup_bundle() to take many
minutes to process what took fractions of a second with
"dumpbin.exe /dependents".
Add a 'grep' pre-filter in the execute_process() command pipeline to
reduce this output to a minimum for a several orders of magnitude speed
up. If grep is not available just use the full output.
As there does not seem to be a reliable way of detecting MinGW, callers
of fixup_bundle() may have to set the variable gp_tool to "objdump" if
dumpbin.exe is installed on the build machine to stop it using the
broken MS dumpbin.exe for library dependency walking.
Since commit v2.8.5~121^2~2 (FindMPI: Handle multiple languages,
2010-12-29) we called the GetPrerequisites is_file_executable function
but passed the name of a CMake variable instead of its value. Therefore
the function has always failed and caused the search for the compiler
name to run even with an absolute path. Switch to using if(IS_ABSOLUTE)
instead and drop use of GetPrerequisites.
Since commit v2.4.0~4325 (...use gcc -shared, even for C++ libraries,
2003-03-13) we use the C compiler "gcc" to link C++ shared libraries
compiled with "g++". At the time "g++" did not know how to link shared
libraries correctly. This has long since been fixed so simply drop the
special case.
Since commit v3.1.0-rc1~564^2 (OS X: Use -iframework for system
framework directories, 2014-05-05) we test the version of Clang to see
if it supports -iframework. Fix the version test used for AppleClang
since it uses a different version scheme than upstream Clang.
Run our check for the '_' prefix using a bzip2 API function as declared
with a prototype in the real header file. This is needed in case the
function is provided in a DLL import library where the symbol name may
not match without proper markup from the header.
If someone in KDE wants to port away from OLD policies, they might want to do
so one policy at a time. This patch will allow them to use
find_package(KDE4 NO_POLICY_SCOPE)
in callers to get around the CMP0011 warning, while still getting the policy
settings contained within.
The module is not needed anymore for try_compile or try_run. It cannot
be used with CMP0022 NEW behavior due to generator expressions in
INTERFACE_LINK_LIBRARIES, so document it as deprecated. Whatever
problems other than try_compile and try_run anyone tried to solve with
this module will have to be addressed another way.
3e6b2ab6 CPack/DEB: component version of PACKAGE_CONTROL_EXTRA
506f6bc0 CPack/DEB: Remove duplicate string(TOUPPER) calls
32e9276a Tests/RunCMake/CPack/DEB: add verifyDebControl
47d1f118 Tests/RunCMake/CPack: found files should be preserved
Add a TARGET_MESSAGES property to control whether Makefile targets print
the "Built target " completion messages. Default to ON to preserve
existing behavior.
Teach the Makefile and Ninja generators to substitute for an <INCLUDES>
placeholder instead of putting -I in <FLAGS>. Update our values for
CMAKE_<LANG>_COMPILE_OBJECT,
CMAKE_<LANG>_CREATE_ASSEMBLY_SOURCE, and
CMAKE_<LANG>_CREATE_PREPROCESSED_SOURCE
to place <INCLUDES> just before <FLAGS>.
Update our values for
CMAKE_<LANG>_COMPILE_OBJECT,
CMAKE_<LANG>_CREATE_ASSEMBLY_SOURCE, and
CMAKE_<LANG>_CREATE_PREPROCESSED_SOURCE
to place <DEFINES> before <FLAGS> consistently across supported
compilers. We already do this for most compilers, so update the rest
for consistency.
Extend the workaround added by commit v3.2.0-rc1~278^2 (FindMPI:
Workaround Intel MPI 5.0.1 exit code problem, 2014-12-04) with an
additional/alternate keyword to recognize the case with recent GCCs.
The Apple Clang 6.1 compiler that comes with Xcode 6.3 is aware of the
modern -std=c++14 and -std=gnu++14 flags, so use them instead of the
"1y" flags.
Suggested-by: darkapostle@rule506.net
Since commit v3.3.0-rc1~397^2 (Check*CompilerFlag: Refactor method used
to pass flags, 2015-02-24) these check modules pass the flags to the
compiler front-end during linking as well as during compilation. This
breaks checks for flags like '-x c++' that are meant only for the
compilation step. Revert the change and add a test covering a
compiler-only flag.
8f86407c Windows: Optionally generate DLL module definition files automatically
069aa93b bindexplib: Add support for "/bigobj" format objects
61bbbdcf bindexplib: Fix treatment of some symbols
de70c922 bindexplib: Teach DumpFile to return errors
8ea69dfe bindexplib: Build source as part of CMakeLib
2963cb2a bindexplib: Wrap long lines
4ff09893 bindexplib: Drop code that CMake does not need
7de8276c bindexplib: Add copyright/license notice block
65086ad7 bindexplib: Import original implementation from CERN
Allow the `Swift` language to be enabled with the Xcode generator for
Xcode >= 6.1. Reject it on other generators and with older Xcode
versions. Since Apple is the only vendor implementing the language
right now, the compiler id can be just `Apple`.
Added new USES_TERMINAL option to the ExternalProject_Add_Step
function. This option passes USES_TERMINAL to the underlying
add_custom_command call so that the Ninja console pool is used.
Also, corresponding new USES_TERMINAL_<step> options were added
to the ExternalProject_Add function.
Justification: if using Ninja with a CMake superbuild, it's often
desirable to limit the superbuild to ONE sub-Ninja process at a
time to avoid oversubscribing the CPU. Using the console pool also
makes it easy to monitor the progress of the sub-Ninja process.
Independent USES_TERMINAL_<step> arguments are passed to
ExternalProject_Add instead of one USES_TERMINAL argument that
controls everything. Users may wish to run some steps in parallel
but not others (e.g. parallelize configure but not build).
Address the test case
cmake_minimum_required(VERSION 2.8)
set(Python_ADDITIONAL_VERSIONS 3.4 3.5 3.6)
find_package(PythonLibs 3 REQUIRED)
with a Python 3.4.x .pkg installed from python.org on OSX.
Temporarily set CMAKE_FIND_FRAMEWORK to LAST to avoid finding the
system Python.h prematurely.
Add directories inside the frameworks to the search list for the library
as is done for the header.
Create target property WINDOWS_EXPORT_ALL_SYMBOLS to automatically
generate a module definition file from MS-compatible .obj files and give
it to the linker in order to export all symbols from the .dll part of a
SHARED library.
This was added without explanation by commit v2.8.2~1138 (Add initial XL
C compiler flags for safer builds, 2009-09-30). It is not consistent
with our default C++ flags for XL and disables several optimizations, so
drop it from our default flags for C.
Suggested-by: Todd Gamblin <tgamblin@llnl.gov>
Add a TestLoad setting to CTest that can be set via a new --test-load
command-line option, CTEST_TEST_LOAD variable, or TEST_LOAD option to
the ctest_test command. Teach cmCTestMultiProcessHandler to measure
the CPU load and avoid starting tests that may take more than the
spare load currently available. The expression
<current_load> + <test_processors> <= <max-load>
must be true to start a new test.
Co-Author: Zack Galbreath <zack.galbreath@kitware.com>
Move the Ld invocation match expression from CMakeDetermineCompilerId
into CMakeDetermine{C,CXX,Fortran}Compiler so that it can be specified
on a per-language basis.
Replace caret-headers with double-quote-headers and replace dash-headers
with caret-headers. This makes the headers match their level of nesting
according to our documentation style guide in cmake-developers(7).
If a Windows resource (.rc) source file is included in a STATIC library,
the VS "link" tool will process the compiled ".res" file and needs to know
the target architecture. Without it, we may get a LNK4068 warning and
possibly a LNK1112 error. Add /machine: to the default static library
flags to give the link tool the information it needs.
When constructing the "id_src" value for substitution into VS or Xcode
compiler id projects, the input "src" variable already contains the file
name with no path so we do not need get_filename_component. We know
this because CMAKE_DETERMINE_COMPILER_ID_WRITE already references
"${src}" with this assumption.
8bcec4d2 Help: Add notes for topic 'GNUInstallDirs-special-prefixes'
c8bd37ec GNUInstallDirs: Add special cases for certain prefixes
5f30f175 GNUInstallDirs: Add test cases
54676a0e Help: Add notes for topic 'ConcurrentFortran-compiler-id'
7cd539b1 Add support for Concurrent Fortran 77 Compiler
0d204c1c CMakeDetermineCompilerId: Try matching compiler output to detect id
5f0dad75 CMakeDetermineCompilerId: Refactor id build/check loop logic
c65a060e CMakeDetermineCompilerId: Optionally try some flags before no flags
At least some versions (e.g. C++ Builder 5) of the bcc32 linker are known to
write temporary files with a constant name to the current directory (e.g.
"turboc.$ln"). (This can be verified by using Process Monitor to watch the
file writes that bcc32 / ilink32 / implib make). This causes problems with
some generators that keep a constant current directory and run concurrent
linkers.
For example, the Ninja generator, by default, always has the current directory
set to the top of the build tree - resulting in conflicts between the linkers
that are simultaneously trying to write to "turboc.$ln". Symptoms include
direct errors regarding the "turboc.$ln" file, or later build steps failing due
to corrupted output from previous links that happened to link "successfully."
This is not a problem for the Borland Makefiles generator which does not
run jobs in parallel. For the Ninja generator, work around this problem
by using a link job pool of size 1.
The Concurrent Fortran compiler (ccur.com) is available on Linux and can
be used much like the GNU Fortran compiler. Currently it has no
preprocessor symbols to identify it so we need to detect it by matching
compiler output.
Suggested-by: Anthony Ette <Anthony.R.Ette@controlsdata.com>
Some compilers can only be distinguished by their compilation output
rather than preprocessor symbols or special flags. Add infrastructure
to determine the compiler id by matching output.
Callers of CMAKE_DETERMINE_COMPILER_ID initialize the
CMAKE_${lang}_COMPILER_ID to unset so we can check it at the end of each
loop iteration instead of the beginning. This approach allows us to
break out of the loop as soon as we succeed. It will also allow checks
to be added in more places within the loop later.
Teach CMAKE_DETERMINE_COMPILER_ID to optionally try detecting the
compiler id using some given flags before trying to detect it with no
special flags. This will be useful for Fortran detection to distinguish
some compilers that use the preprocessors of others but have no macro of
their own by getting verbose output.
Teach the module to handle SYSCONFDIR and LOCALSTATEDIR properly if
CMAKE_INSTALL_PREFIX is set to `/` or `/usr` -- i.e. as expected by GNU
Coding Standard (i.e. set SYSCONFDIR to `/etc` and `LOCALSTATEDIR` to
`/var`). Also if CMAKE_INSTALL_PREFIX is set to /opt/pkg, `SYSCONFDIR`
must be set to `/etc/opt/pkg` and `LOCALSTATEDIR` to `/var/opt/pkg`
according to FHS.
Otherwise using a "cc -> ccache" or similar symlink as the compiler
causes FindCUDA to select ccache as the host compiler. Update the logic
added by commit v3.1.0-rc1~354^2 (FindCUDA: Fix OSX Clang & no C
language enabled, 2014-06-12) to apply only in the specific case it is
needed.
Revert commit v3.3.0-rc1~435^2 (Windows-GNU: Do not tell find_library to
treat '.dll' as linkable, 2015-02-18). MinGW tools support linking to
'.dll' files directly and many non-CMake build systems still do not
provide a separate '.dll.a' file.
Frank-Christian Otto
Domen Vrankar
Marc Chevrier
Brad King
Matt McCormick
Bill Somerville
Justin Cook
Thijs Wenker
Ralf Habacker
Stephen Kelly
Stanimir Kabaivanov
Michael Ensslin
Roger Leigh
Sean Brennan
Roger Leigh
Daniel Pfeifer
Roger Leigh
James Johnston
Bill Hoffman
Betsy McPhail
Tamas Kenez
James Johnston
Alex Turbov
Eon Jeong