Commit Graph

39 Commits

Author SHA1 Message Date
Stephen Kelly e0890d03a4 Features: Extend concept to C language.
Add properties and variables corresponding to CXX equivalents.

Add features for c_function_prototypes (C90), c_restrict (C99),
c_variadic_macros (C99) and c_static_assert (C11). This feature
set can be extended later.

Add a <PREFIX>_RESTRICT symbol define to WriteCompilerDetectionHeader
to conditionally represent the c_restrict feature.
2014-05-15 00:15:18 +02:00
Tim Blechmann 95cdf13248 Treat .m files consistently as C across all generators
Objective C sources should be compiled with the C compiler, not C++.

The Xcode generator correctly classifies ".m" sources already.  The
cmSystemTools::GetFileFormat method was fixed by commit v2.8.0~1782 (fix
for 7045, use gcc for .m, 2008-08-19) but it is not used by any of the
generator since commit v2.4.0~2819 (major changes to support addition of
languages, 2004-09-22).

Fix the CMAKE_<LANG>_SOURCE_FILE_EXTENSIONS table entries so that
cmGlobalGenerator::GetLanguageFromExtension tells the Makefile, Ninja,
and VS IDE generators to compile ".m" sources as C.  This makes behavior
consistent on all generators.

Signed-off-by: Tim Blechmann <tim@klingt.org>
2014-03-20 09:40:41 -04:00
Peter Kümmel eeb4aece1c Ninja: use deps = gcc/msvc feature
cmcldeps is now only used for .rc file processing
2013-10-24 19:48:18 +02:00
Brad King 51ab85c398 CMakeDetermineCompilerId: Add notion of "simulated" id/version
Some compilers try to simulate other compilers as a drop-in replacement
supporting all the same command-line options and predefined preprocessor
macros.  In such cases it will be useful to have CMake load the compiler
information files for the simulated compiler instead of duplicating the
information.  Teach CMakeDetermineCompilerId to extract the simulated
compiler id and version when the compiler id detection provides it.
2013-10-04 13:25:06 -04:00
Brad King cc676c3a08 OS X: Detect implicit linker framework search paths
Previously we hard-coded a list of implicit framework directories but
did not account for CMAKE_OSX_SYSROOT or for changes to the list across
OS X versions.  Instead we should automatically detect the framework
directories for the active toolchain.

The parent commit added the "-Wl,-v" option to ask "ld" to print its
implicit directories.  It displays a block such as:

 Framework search paths:
	/...

Parse this block to extract the list of framework directories.

Detection may fail on toolchains that do not list their framework
directories, such as older OS X linkers.  Always treat the paths

 <sdk>/Library/Frameworks
 <sdk>/System/Library/Frameworks
 <sdk>/Network/Library/Frameworks # Older OS X only
 /System/Library/Frameworks

as implicit.  Note that /System/Library/Frameworks should always be
considered implicit so that frameworks CMake finds there will not
override the SDK copies.
2012-12-11 15:15:52 -05:00
Brad King a0a0877a1e OS X: Always generate -isysroot if any SDK is in use
Drop the last use of CMAKE_OSX_SYSROOT_DEFAULT.  Replace internal
platform variable CMAKE_${lang}_HAS_ISYSROOT with a more general
CMAKE_${lang}_SYSROOT_FLAG variable.  If the -isysroot flag exists and
CMAKE_OSX_SYSROOT points to an SDK (not "/") then always add it to
compiler command lines.  This is already done in the Xcode IDE.
2012-09-21 08:53:42 -04:00
Brad King e5fee8a7c2 Store ABI detection results in compiler information files
Drop use of cache entry CMAKE_DETERMINE_<LANG>_ABI_COMPILED and replace
it with variable CMAKE_<LANG>_ABI_COMPILED.  Since the grandparent
commit this test result is specific to the version of CMake.  Store it
in the version-specific compiler information files instead of
CMakeCache.txt so testing can be re-done to meet the requirements of the
current version of CMake even if another version of CMake was already
used to configure the build tree.
2012-08-24 15:15:14 -04:00
Brad King 3df81b4912 Move CMAKE_<LANG>_COMPILER_WORKS to compiler information files
Since the parent commit this test result is specific to the version of
CMake.  Store it in the version-specific compiler information files
instead of CMakeCache.txt so testing can be re-done to meet the
requirements of the current version of CMake even if another version of
CMake was already used to configure the build tree.
2012-08-24 10:52:23 -04:00
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
Kitware Robot 77543bde41 Convert CMake-language commands to lower case
Ancient CMake versions required upper-case commands.  Later command
names became case-insensitive.  Now the preferred style is lower-case.

Run the following shell code:

cmake --help-command-list |
grep -v "cmake version" |
while read c; do
    echo 's/\b'"$(echo $c | tr '[:lower:]' '[:upper:]')"'\(\s*\)(/'"$c"'\1(/g'
done >convert.sed &&
git ls-files -z -- bootstrap '*.cmake' '*.cmake.in' '*CMakeLists.txt' |
egrep -z -v '^(Utilities/cm|Source/kwsys/)' |
xargs -0 sed -i -f convert.sed &&
rm convert.sed
2012-08-13 14:19:16 -04:00
Peter Kuemmel 8b27a94f28 Ninja: don't set cmcldeps vars to empty string when they are not defined 2012-06-09 12:10:52 +02:00
Peter Kuemmel 941afa571c Ninja: allow spaces in source path
And make /showIncude prefix visible for all build rules
2012-06-08 22:59:18 +02:00
Brad King fa7141f5ad Add framework to detect compiler version with its id (#12408)
Teach CMakePlatformId.h to construct an "INFO:compiler_version[]" string
literal from macros COMPILER_VERSION_(MAJOR|MINOR|PATCH|TWEAK) to be
defined in CMake(C|CXX)CompilerId.(c|cpp) for each compiler.  Provide
conversion macros DEC() and HEX() to decode decimal or hex digits from
integer values.  Parse the version out of the compiler id binary along
with the other INFO values already present.

Store the result in variable CMAKE_<LANG>_COMPILER_VERSION in the format
"major[.minor[.patch[.tweak]]]".  Save the value persistently in
CMake(C|CXX)Compiler.cmake in the build tree.  Document the variable for
internal use since we do not set it everywhere yet.

Report the compiler version on the compiler id result line e.g.

  The C compiler identification is GNU 4.5.2

Report CMAKE_(C|CXX)_COMPILER_(ID|VERSION) in SystemInformation test.
2011-12-07 08:59:51 -05:00
Brad King b41ad3b399 Teach find_(library|package) about Linux multiarch (#12037)
Implement support for multiarch as specified here:

  http://wiki.debian.org/Multiarch
  https://wiki.ubuntu.com/MultiarchSpec

Detect the <arch> part of <prefix>/lib/<arch> from the implicit library
search path from each compiler to set CMAKE_<lang>_LIBRARY_ARCHITECTURE.
Define CMAKE_LIBRARY_ARCHITECTURE using one of these values (they should
all be the same).  Teach the find_library and find_package commands to
search <prefix>/lib/<arch> whenever they would search <prefix>/lib.
2011-06-08 10:04:44 -04:00
David Cole 6ee87b2e5c Fix issue #10155 - default value of CMAKE_OSX_DEPLOYMENT_TARGET should always be the empty string. When the value of CMAKE_OSX_DEPLOYMENT_TARGET is the empty string, the -mmacosx-version-min flag should not show up on the compiler command line. The logic for selecting default value of CMAKE_OSX_SYSROOT is orthogonal to and independent of the value of the deployment target. The default value for CMAKE_OSX_SYSROOT is the SDK that corresponds to the current version of Mac OSX on which cmake is running. 2010-01-29 11:56:35 -05:00
Alexander Neundorf 3551869e92 -also put CMAKE_LINKER in the C and CXX compiler information files
This is already done for assembler and is necessary for e.g. Symbian.

Alex
2010-01-22 12:41:55 -05:00
Bill Hoffman 4430bccc70 Change the way 32/64 bit compiles are detected with MSVC and intel makefile builds. Use the platform ID preprocessor approach. 2009-11-19 21:58:42 -05:00
Brad King 180c60a86f Fix check for -isysroot on OS X
Previously we checked for this flag by parsing the version number of GCC
out of 'gcc --version', but this is not reliable because the format can
vary greatly.  Now we run 'gcc -v --help' and look for '-isysroot' in
the list of options.

We also now store the result on a per-language basis in the per-compiler
info file "CMake<LANG>Compiler.cmake".  This is necessary to make it
accessible from try-compile projects so that they generate correctly.
2009-09-19 10:14:31 -04:00
Brad King 07ea19ad1f ENH: Implicit link info for C, CXX, and Fortran
This teaches CMake to detect implicit link information for C, C++, and
Fortran compilers.  We detect the implicit linker search directories and
implicit linker options for UNIX-like environments using verbose output
from compiler front-ends.  We store results in new variables called

  CMAKE_<LANG>_IMPLICIT_LINK_LIBRARIES
  CMAKE_<LANG>_IMPLICIT_LINK_DIRECTORIES

The implicit libraries can contain linker flags as well as library
names.
2009-07-23 10:07:25 -04:00
Brad King a28b197b11 ENH: Generalize the check for sizeof void* to detect more ABI information. 2008-01-21 18:30:17 -05:00
Alexander Neundorf 021ceea1b0 ENH: second try for handling the linker language with integer priority values (returning a pointer to a string on the stack is no good idea)
Alex
2007-07-12 08:37:10 -04:00
Alexander Neundorf 16705a3e87 COMP: revert last commit for now, broke Visual Studio
Alex
2007-07-11 17:29:27 -04:00
Alexander Neundorf bea1a5de77 ENH: CMAKE_<LANG>_LINKER_PREFERENCE is now an integer priority, not a
two-step priority (None or Prefered)
Current order: ASM 0, C 10, Fortran 20, CXX 30, Java 40
This is the same order as automake choses:
http://www.gnu.org/software/automake/manual/html_node/How-the-Linker-is-Chosen.html

This change should be backward compatible:
if there is a project using fortran and CXX, they had to set the
LINKER_LANGUAGE explicitely, otherwise cmake complained (but still generated
the project files). Explicitely setting the linker language still overrides
automatic detection.
If somebody has a custom language for cmake and the PREFERENCE starts with
"P", its changed to 100, which gives it preference over all other languages
(except the other custom languages which have also "Prefered"). "None" is
converted to 0.

Alex
2007-07-11 16:22:04 -04:00
Alexander Neundorf 422dc631b6 ENH: split cmGlobalGenerator::SetLanguageEnabled() in two parts, where the
second part copies the values from the cmake variables into internal maps.
So this can now be done after the compiler-specific information has been
loaded, which can now overwrite more settings.

Alex
2007-06-11 15:31:42 -04:00
Alexander Neundorf 61d3444f93 ENH: merge CMake-CrossCompileBasic to HEAD
-add a RESULT_VARIABLE to INCLUDE()
-add CMAKE_TOOLCHAIN_FILE for specifiying your (potentially crosscompiling) toolchain
-have TRY_RUN() complain if you try to use it in crosscompiling mode (which were compiled but cannot run on this system)
-use CMAKE_EXECUTABLE_SUFFIX in TRY_RUN(), probably TRY_RUN won't be able to
run the executables if they have a different suffix because they are
probably crosscompiled, but nevertheless it should be able to find them
-make several cmake variables presettable by the user: CMAKE_C/CXX_COMPILER, CMAKE_C/CXX_OUTPUT_EXTENSION, CMAKE_SYSTEM_NAME, CMAKE_SYSTEM_INFO_FILE
-support prefix for GNU toolchains (arm-elf-gcc, arm-elf-ar, arm-elf-strip etc.)
-move ranlib on OSX from the file command to a command in executed in cmake_install.cmake
-add support for stripping during install in cmake_install.cmake
-split out cl.cmake from Windows-cl.cmake, first (very incomplete) step to support MS crosscompiling tools
-remove stdio.h from the simple C program which checks if the compiler works, since this may not exist for some embedded platforms
-create a new CMakeFindBinUtils.cmake which collects the search fro ar, ranlib, strip, ld, link, install_name_tool and other tools like these
-add support for CMAKE_FIND_ROOT_PATH for all FIND_XXX commands, which is a
list of directories which will be prepended to all search directories, right
now as a cmake variable, turning it into a global cmake property may need
some more work
-remove cmTestTestHandler::TryExecutable(), it's unused
-split cmFileCommand::HandleInstall() into slightly smaller functions

Alex
2007-05-17 13:20:44 -04:00
Brad King eac71647dd ENH: Merging CompilerId implementation from branch CMake-Modules-CompilerId to the main tree. Changes between CMake-Modules-CompilerId-bp and CMake-Modules-CompilerId-mp1 are included. 2007-04-28 09:35:01 -04:00
Bill Hoffman aa98e3647d ENH: fix more than one argument passed in to compilers via environment 2006-01-25 11:41:05 -05:00
Bill Hoffman 03e2911e55 BUG: fix SIZEOF VOIDP problem 2005-11-14 14:21:39 -05:00
Bill Hoffman b8b298104b ENH: make sure flags set in CC or CXX environment variables stay with the compiler 2005-07-20 15:44:55 -04:00
Bill Hoffman 36dd18efce ENH: stuff to keep compiler tests from re-running all the time 2005-01-20 12:30:03 -05:00
Bill Hoffman e7bc462755 BUG: fix running of cl in trycompiles 2005-01-17 15:20:41 -05:00
Bill Hoffman 692ba48c4e ENH: major changes to support addition of languages from cmake modules directory. 2004-09-22 14:42:05 -04:00
Bill Hoffman c2ef51e181 ENH: define language extensions in cmake files and not hard coded, also fix trycompile problem 2004-09-03 12:03:41 -04:00
Bill Hoffman 89fe29a41a ENH: reduce the number of times gnu is tested for 2003-12-12 09:12:49 -05:00
Bill Hoffman a413160fec ENH: add the unix makefile generator as an option from the windows GUI, this builds with mingw, cygwin, and combinations of make cl, bcc32 2003-08-21 16:22:23 -04:00
Bill Hoffman ee42cf3c06 BUG: use CMAKE_COMPILER_IS_GNUCC not CMAKE_COMPILER_IS_GNUGCC 2002-11-20 15:23:14 -05:00
Bill Hoffman d1051bb575 clean up flags with _init flags 2002-11-11 12:31:46 -05:00
Bill Hoffman f5d95fb078 Complete rework of makefile generators expect trouble 2002-11-08 15:46:08 -05:00
Bill Hoffman fa782867b3 closer to removing autoconf 2002-10-23 16:53:53 -04:00