Commit Graph

31 Commits

Author SHA1 Message Date
Brad King 86578eccf2 Simplify CMake per-source license notices
Per-source copyright/license notice headers that spell out copyright holder
names and years are hard to maintain and often out-of-date or plain wrong.
Precise contributor information is already maintained automatically by the
version control tool.  Ultimately it is the receiver of a file who is
responsible for determining its licensing status, and per-source notices are
merely a convenience.  Therefore it is simpler and more accurate for
each source to have a generic notice of the license name and references to
more detailed information on copyright holders and full license terms.

Our `Copyright.txt` file now contains a list of Contributors whose names
appeared source-level copyright notices.  It also references version control
history for more precise information.  Therefore we no longer need to spell
out the list of Contributors in each source file notice.

Replace CMake per-source copyright/license notice headers with a short
description of the license and links to `Copyright.txt` and online information
available from "https://cmake.org/licensing".  The online URL also handles
cases of modules being copied out of our source into other projects, so we
can drop our notices about replacing links with full license text.

Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority
of the replacements mechanically.  Manually fix up shebang lines and trailing
newlines in a few files.  Manually update the notices in a few files that the
script does not handle.
2016-09-27 15:14:44 -04:00
Brad King 08659ff4cb Re-order 'ar' options 'cq' => 'qc'
The documetnation of binutils:

  https://sourceware.org/binutils/docs/binutils/ar-cmdline.html

suggests to use the parameters "q" and "c" in this order ("q" is
operation, and "c" is the modifier).

Suggested-by: Дилян Палаузов <dilyan.palauzov@aegee.org>
2015-09-09 11:08:20 -04:00
Brad King f5dbf00da6 Windows-GNU: Restore find_library treatment of '.dll' as linkable (#15409)
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.
2015-06-08 10:16:18 -04:00
Brad King cf8ce7a39e RC: Do not override MinGW Makefiles generator preference
Update logic added in commit 957c2aac (RC: Simplify selection of
resource compiler based on C/C++ toolchain, 2015-05-07) to avoid
overriding CMAKE_GENERATOR_RC.  The MinGW and MSYS Makefiles
generators use it to select a windres next to the compiler even
if it is not in the PATH.
2015-05-11 09:00:25 -04:00
Brad King 957c2aac7f RC: Simplify selection of resource compiler based on C/C++ toolchain
Revert the refactoring by commit v2.8.11~105^2~1 (Ninja: use MinGW
generator code in EnableLanguage, 2013-03-09) and move the MinGW-
specific logic back to the "MinGW Makefiles" generator.  Instead teach
the platform information modules for GNU and MSVC on Windows to set the
preferred RC compiler just before enabling the RC language.  This way
we choose the RC compiler based on the C/C++ toolchain that is actually
enabled.
2015-05-07 11:43:02 -04:00
Brad King 4300de3e27 RC: Enable language after C, CXX, or Fortran is enabled (#15404)
The RC language is special in that it is automatically enabled
on Windows-based platforms when another primary language is
enabled.  Move enablement of RC from early in the enablement
of the other language to late.  This will allow it to use
information detected as part of enabling C, CXX, or Fortran.
2015-02-25 11:16:51 -05:00
Brad King a0f17fbe9c Windows-GNU: Do not tell find_library to treat '.dll' as linkable
Modern software distributions always use a separate ".dll.a" or ".lib"
import library for linking.
2015-02-18 09:40:25 -05:00
Brad King c8c359bb0f Merge topic 'GNUtoMS-vs-12'
668e571d GNUtoMS: Add support for VS 2013 (#14936)
2014-05-28 12:34:32 -04:00
Brad King 668e571d61 GNUtoMS: Add support for VS 2013 (#14936)
Add to the Platform/Windows-GNU module list of VS registry entries those
for VS 2013.  Also add the name "vcvars64.bat" used by VS 10 and above
for 64-bit tools.
2014-05-27 09:24:26 -04:00
Brad King 028aee1a07 Merge topic 'mingw-archive-no-replace'
39d0ade0 Windows-GNU: Support duplicate object names in large archives (#14874)
2014-04-15 10:22:36 -04:00
Peter Kümmel b735c8cb43 MinGW: link like on Unix and use compile flags when linking 2014-04-15 10:17:06 -04:00
Brad King 39d0ade07e Windows-GNU: Support duplicate object names in large archives (#14874)
Since commit v2.6.0~388 (Added build rule variables
CMAKE_<LANG>_ARCHIVE_..., 2008-01-29) we use separate "ar cr ..." and
"ar r ..." steps to incrementally add a large list of object files to an
archive.  Since the "r" command replaces existing objects of the same
name in an archive, if multiple objects have the same file name and
appear in separate append steps then one overwrites the other.  Instead,
use "ar cq ..." and "ar q ..." to always append to the archive.

We already remove the archive before creating it so this will not cause
objects to be appended to existing archives on incremental rebuilds.
2014-04-14 14:35:19 -04:00
Brad King 489b1c23b9 Windows: Use response files to specify link libraries for GNU tools
Work around the command-line-length limit by using an @linklibs.rsp
response file to pass the flags for link libraries.  This allows
very long lists of libraries to be used in addition to the existing
support for passing object files via response file.

Suggested-by: Peter Keuschnigg <peter.keuschnigg@pmu.ac.at>
2014-03-05 13:07:41 -05:00
Peter Kümmel be9afbf453 Find mingw's windres also when Unix Makefiles are used 2012-08-27 16:54:21 +02:00
Kitware Robot 9db3116226 Remove CMake-language block-end command arguments
Ancient versions of CMake required else(), endif(), and similar block
termination commands to have arguments matching the command starting the
block.  This is no longer the preferred style.

Run the following shell code:

for c in else endif endforeach endfunction endmacro endwhile; do
    echo 's/\b'"$c"'\(\s*\)(.\+)/'"$c"'\1()/'
done >convert.sed &&
git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' |
egrep -z -v '^(Utilities/cm|Source/kwsys/)' |
egrep -z -v 'Tests/CMakeTests/While-Endwhile-' |
xargs -0 sed -i -f convert.sed &&
rm convert.sed
2012-08-13 14:19:16 -04:00
Peter Kümmel 3a2c8e8e66 Ninja: disable work around when linking with mingw
The work around is only needed by older GCCs (only testet 4.4/4.7)
Ninja is very new so chances are high that there is also a new mingw.

Use slashes in link rsp file, because ar.exe can't handle \.
2012-07-11 08:55:00 +02:00
Stephen Kelly 31d7a0f2e3 Add platform variables for position independent code flags
Store in new platform variables

  CMAKE_${lang}_COMPILE_OPTIONS_PIC
  CMAKE_${lang}_COMPILE_OPTIONS_PIE

flags for position independent code generation.

In almost all cases, this means duplication of the
CMAKE_SHARED_LIBRARY_${lang}_FLAGS for the _PIC case and using the
assumed pie equivalent for the _PIE case.  Note that the GNU compiler
has supported -fPIE since 3.4 and that there is no -fPIC on GNU for
Windows or Cygwin.

There is a possibility that the _PIE variables are not correct.
However, as there is no backwards compatibility to be concerned about
(as the POSITION_INDEPENDENT_CODE property is not used anywhere yet),
the current state suffices.
2012-06-12 15:37:53 -04:00
Brad King c213eb9cbf Windows-GNU: Remove extra quotes in GNUtoMS rule variable
CMake replaces the <TARGET...> tokens with properly quoted values so we
do not need an extra set of quotes around them.
2011-12-08 13:28:37 -05:00
Brad King afb00fef19 Add CMAKE_GNUtoMS option to convert GNU .dll.a to MS .lib
Teach the Windows-GNU.cmake platform file to look for Visual Studio
tools matching the target ABI.  Add an extra step to the link command
for shared libraries and executables that export symbols and on which a
new GNUtoMS property is set (initialized by the CMAKE_GNUtoMS option).
Tell the GNU linker to output a module definition (.def) file listing
exported symbols in addition to the GNU-format import library (.dll.a).
Pass the .def file to the MS "lib" tool to construct a MS-format DLL
import library (.lib).

Teach the install(TARGETS) command to install the MS import library next
to the GNU one.  Teach the install(EXPORT) and export() command to set
the IMPORTED_IMPLIB property pointing at the import library to use the
import library matching the tools in the importing project.
2011-12-05 18:13:49 -05:00
Brad King 1c3233a850 Merge topic 'include-flags-response-file'
86cb17b Pass include directories with response files to GNU on Windows
9a0b9bc Optionally pass include directories with response files
6e8a67f Generate target-wide flags before individual build rules
d099546 Factor old-style -D flags out from -I flag generation
2011-03-22 14:45:44 -04:00
Brad King 86cb17b18d Pass include directories with response files to GNU on Windows
The GNU 4.x toolchain on MinGW (and therefore MSYS) allows compiler
options to be passed via response files.  Use this to pass include
directory -I options.  This allows the include file search path to be
very long despite shell and mingw32-make command line length limits.
2011-03-17 17:56:14 -04:00
Brad King 761621645c Pass .def files directly to MinGW tools (#9997)
Commit 6a61a8a5 (Honor module .def files with MinGW tools, 2011-02-21)
set CMAKE_LINK_DEF_FILE_FLAG to "-Wl," to enable passing .def files to
the linker on MinGW.  However, older GNU tools in the MSYS shell do not
know how to translate "-Wl,/c/..." to "c:/..." and complain that the
file does not exist.  Instead set the flag to just "" which tells CMake
it can pass the file through the front-end with no special flag.
2011-02-23 11:04:17 -05:00
Brad King 6a61a8a538 Honor module .def files with MinGW tools (#9997)
Since commit 024d05ad (Fix use of module .def files for MS tools,
2009-09-29) module .def files work for any platform that sets
CMAKE_LINK_DEF_FILE_FLAG correctly.  Set it in the Windows-GNU platform
information file to enable support with MinGW tools.  Also enable the
test added by commit 0db2c850 (Test use of module .def files for MS
tools, 2009-09-29) for MinGW and MSYS generators.
2011-02-21 14:34:54 -05:00
Bill Hoffman b2f308c8f9 Add support for windows resources with mingw/msys. 2010-12-23 17:04:49 -05:00
Brad King 5f05a3c25e MinGW: Support long object file lists
Use a combination of response files and the archiver to support long
object file lists that do not fit in the Windows command-line length
limit.  This can work only with GCC >= 4 because the MinGW GCC 3.x
front-ends do not support response-file syntax.
2010-09-17 09:25:36 -04:00
Brad King cc31f89c17 Merge topic 'module-header-spelling'
2cde67a Modules: Fix spelling 'To distributed' -> 'To distribute'
2010-08-10 14:33:47 -04:00
Todd Gamblin 2cde67a781 Modules: Fix spelling 'To distributed' -> 'To distribute' 2010-08-09 08:48:31 -04:00
Brad King b03f4ec09d No response files with GNU ld <= 2.16 (#10913)
Older GNU ld does not support the @FILE syntax for response files.
Check the ld version on MinGW and MSYS before enabling the syntax.
2010-08-06 09:34:53 -04:00
Brad King 00477de1c9 Use response file for objects on MinGW and MSYS
Windows command lines are limited to about 32K so we need to use
response files for linking very large lists of object files.

See issue #10401.
2010-03-11 09:46:18 -05:00
Brad King 4eba05de42 Suppress GNU flag -fPIC on Windows
Commit "Modernize GNU compiler info on Windows" (2009-12-02) reorganized
GNU flags on Windows but let -fPIC slip through for compilation of
objects in shared libraries.  While this flag is valid on most GNU
compiler platforms we need to suppress it in Windows-GNU.cmake just as
we already do in CYGWIN-GNU.cmake.
2010-02-19 08:23:31 -05:00
Brad King aff3147917 Modernize GNU compiler info on Windows
This moves GNU compiler info on Windows into new-style modules

  Platform/Windows-GNU-<lang>.cmake

using language-independent helper module

  Platform/Windows-GNU.cmake

to define macros consolidating the information.
2009-12-02 11:27:59 -05:00