In vs2010 a bad project file could be generated if a .c or .cxx file
was marked with HEADER_FILE_ONLY, if it was in a library that contained
both c and c++ code. This fixes the error in the code, and adds a test
for this case.
If a .sln file refers to a project file with a leading ".\", as in
".\foo.vcxproj" instead of just "foo.vcxproj" or a full path then
msbuild behaves strangely. Whenever target foo is built as a dependency
of another target, msbuild brings multiple configurations up to date
instead of just the requested configuration!
Avoid a leading ".\" in project file references to avoid this behavior.
This alternative fix to that attempted by commit 57e71533 (Avoid msbuild
idiosyncrasy that builds multiple configs, 2010-12-10) avoids use of
full path project file references which vcbuild does not support.
This reverts commit 57e71533f4.
While "msbuild" can handle full paths to project files in solutions,
the old "vcbuild" used for VS < 10 cannot. We will need another
way to fix issue #11594.
For prior versions of Visual Studio we would intentionally pass
"/nologo-" for "verbose makefiles" (CMAKE_VERBOSE_MAKEFILE ON)
when the caller did not already explicitly specify either /nologo
or /nologo-. And we still do. For the prior versions.
This had the side effect of always passing /nologo- for try_compile
operations because try_compile generates projects that have verbose
makefiles on.
However, starting with Visual Studio 10, the compiler emits
"cl ... warning D9035: option 'nologo-' has been deprecated"
when passed "/nologo-".
Therefore, this commit removes setting "/nologo-" for verbose
makefiles in the Visual Studio 10 case to avoid emitting a
warning for every single invocation of the compiler in a given
build.
With Visual Studio 10, we do not set this flag either way
and therefore, the generated project has no value for this
setting and gets Visual Studio's default value, which is
of course "/nologo", which does not produce a warning.
With Visual Studio 10, a caller can still force "/nologo-"
if desired by adding it explicitly to CMAKE_C_FLAGS or
CMAKE_CXX_FLAGS.
One of Cygwin's goals is to build projects using the POSIX API with no
Windows awareness. Many CMake-built projects have been written to test
for UNIX and WIN32 but not CYGWIN. The preferred behavior under Cygwin
in such projects is to take the UNIX path but not the WIN32 path.
Unfortunately this change is BACKWARDS INCOMPATIBLE for Cygwin-aware
CMake projects! Some projects that previously built under Cygwin and
are Cygwin-aware when they test for WIN32 may now behave differently.
Eventually these projects will need to be updated, but to help users
build them in the meantime we print a warning about the change in
behavior. Furthermore, one may set CMAKE_LEGACY_CYGWIN_WIN32 to request
old behavior during the transition.
Normally we avoid backwards incompatible changes, but we make an
exception in this case for a few reasons:
(1) This behavior is preferred by Cygwin's design goals.
(2) A warning provides a clear path forward for everyone who may see
incompatible behavior, and CMAKE_LEGACY_CYGWIN_WIN32 provides a
compatibility option. The warning and compatibility option both
disappear when the minimum required version of CMake in a project is
sufficiently new, so this issue will simply go away over time as
projects are updated to account for the change.
(3) The fixes required to update projects are fairly insignificant.
Furthermore, the Cygwin distribution has no releases itself so project
versions that predate said fixes tend to be difficult to build anyway.
(4) This change enables many CMake-built projects that did not
previously build under Cygwin to work out-of-the-box. From bug #10122:
"I have built over 120 different source packages with (my patched)
CMake, including most of KDE4, and have found that NOT defining
WIN32 on Cygwin is much more accurate." -- Yaakov Selkowitz
A fully compatible change would require patches on top of these project
releases for Cygwin even though they otherwise need not be aware of it.
(5) Yaakov has been maintaining a fork of CMake with this change for the
Cygwin Ports distribution. It works well in practice. By accepting the
change in upstream CMake we avoid confusion between the versions.
CMake itself builds without WIN32 defined on Cygwin. Simply disable
CMAKE_LEGACY_CYGWIN_WIN32 explicitly in our own CMakeLists.txt file.
Previously, we would search in the Windows registry for the path
to makensis, and fail immediately if we could not read the registry
value, assuming that it was simply not installed.
This change looks for makensis in the PATH even if the registry value
is not there, enabling the scenario where makensis is installed without
admin privileges and never even touches HKEY_LOCAL_MACHINE during the
non-admin install.
In VS9 and previous versions, :VCReportError is the goto label
to jump to after a failed custom command. It stops the build
before it tries to go any further.
In VS10, :VCEnd is the correct label to use.
Create a method in the VS generators to provide the correct
line of script to use for each version of Visual Studio.
For more internal details, search for VCEnd in the
C:\Program Files\MSBuild directory.
The KWSys SystemTools::GetMaximumFilePathLength method is poorly
conceived and should not be used. The cmDepends code honors its own
MaxPath buffer size. Just hard-code it.
The first instinct of a lot of users is to use file(GLOB) to assemble
lists of sources. Add a warning to the help text stating that it should
not be used for this purpose and briefly explain why.
Suggested-By: Ryan Pavlik
A cycle exists when the DFS returns to the root node, not just when
multiple paths lead to the same node.
Inspired-By: Alexander Esilevich <aesilevich@pathscale.com>
Evaluate in the COMMAND arguments of custom commands the generator
expression syntax introduced in commit d2e1f2b4 (Introduce "generator
expressions" to add_test, 2009-08-11). These expressions have a syntax
like $<TARGET_FILE:mytarget> and are evaluated during build system
generation. This syntax allows per-configuration target output files to
be referenced in custom command lines.
The target_link_libraries command requires its first argument to be a
target in the current directory. Document this and update the error
message to be more specific. While at it, format the error message with
a call stack.
Previously the OUTPUT arguments of add_custom_command were not
slash-normalized but those of add_library and add_executable were.
This caused the example
add_custom_command(OUTPUT a//b.c ...)
add_library(... a//b.c ...)
to fail at build time with "no rule to make a/b.c". Fix this and modify
the CustomCommand test to try it.
This method replaces '//' with '/' to make the paths look nicer.
Originally it correctly skipped a leading '//' in a UNC path as the
comment says. However, commit "Removed extra variable initializations"
(2005-04-15) accidentally removed the "pos=1" initializer. It was then
incorrectly restored by commit "Added missing variable initialization"
(2005-04-15) as just "pos=0". Restore the proper initializer.
The test for this added by commit "better coverage" (2006-07-31)
included incorrect output for a sample UNC-like path. Fix it.
Pass the full version to cmake_minimum_required(VERSION) in generated
CMake files for try_compile projects. This tells CMake not to use any
backward compatibility behavior while processing code it generates.
27ee50a Add ECLIPSE_CDT4_GENERATE_SOURCE_PROJECT as a ADVANCED cache variable (#9631)
50d21d4 Add cache var CMAKE_ECLIPSE_MAKE_ARGUMENTS when using the Eclipse generator
10f01ae Remove unused parameter "root" in some VS generator methods
57e7153 Avoid msbuild idiosyncrasy that builds multiple configs (#11594)
7728172 Remove unused variable "rootdir" in VS generators
Remove a boolean parameter of cmGlobalGenerator::CreateGlobalTarget that
is never set to true anymore. Remove global target "consolidation" loop
because no global targets exist before it runs anymore.
Commit e01cce28 (Allow add_dependencies() on imported targets,
2010-11-19) started using cmMakefile::FindTargetToUse to follow
dependencies, including those of GLOBAL_TARGETs like INSTALL and
PACKAGE. Since global targets exist in every directory, dependencies
between them must be traced within each directory too.
Teach FindTargetToUse to check the current directory before checking
globally. For global targets this will find the local copy. For for
normal targets this will be a no-op because they are globally unique.
This variable can be set to command line arguments which will be passed
to make when eclipse invokes make, e.g. you can enter "-j8" to get
8 parallel builds (#9930)
Alex
This authorize more control because one can set
CPACK_ARCHIVE_COMPONENT_INSTALL to ON globally
and then set it selectively to OFF inside
a CPack project config file.
Sidenote: GetOption ought to be a 'const' method.
If a .sln file refers to a project file with a leading ".\", as in
".\foo.vcxproj" instead of just "foo.vcxproj" or a full path then
msbuild behaves strangely. Whenever target foo is built as a dependency
of another target, msbuild brings multiple configurations up to date
instead of just the requested configuration!
Refer to all project files by full path to avoid this behavior.
The soname generation code was compile-time selected instead of runtime
selected. The result is that a Mac-compiled cmake used to cross-compile
Mac -> Unix generates an soname of the form libfoo.x.y.so instead of
libfoo.so.x.y as expected. Instead do a runtime check based on the
target platform.
Inspired-By: George Staikos <staikos@kde.org>
Avoid tracing dependencies of GLOBAL_TARGET targets. The build system
generators are not designed to handle any dependencies that may be
discovered. Global targets are only generated by CMake and never have
commands that reference targets built in the project anyway.
The exception is when building CMake itself there is a special case to
use the just-built "cmake" binary in the "install" target so that CMake
can replace itself on Windows. Even in this special case we do not want
to let the "install" target depend on the "cmake" target. Doing so
breaks cases like "make -j4 install".
Commit "merge in changes for beos support" (2006-12-04) added a realpath
call for every directory parsed out of a PATH-style environment
variable. No reason was given in the commit message or comments.
The call incorrectly resolves symlinks in referenced paths. Remove it.
If BeOS support really needs it then it can be restored for that
platform with a full explanation.
The cmCustomCommandGenerator::GetCommand method completely replaces the
purpose of this method. Re-implement GetRealLocation inline at the only
remaining call site and remove it.
The Makefile, VS, and Xcode generators previously duplicated some custom
command line generation code. Factor this out into a separate class
cmCustomCommandGenerator shared by all generators.
A custom command may name a target created by add_custom_target in its
DEPENDS field. Treat this case as a target-level dependency only since
a custom target provides no standard file on which to add a file-level
dependency.
Imported targets do not themselves build, but we can follow dependencies
through them to find real targets. This allows imported targets to
depend on custom targets that provide the underlying files at build
time.
Commit 60cd72d0 (Cleaned up generation of symbolic rules, 2006-02-15)
incorrectly made these Makefile targets .PHONY even though the build
rule touches an actual file. Correct it so that the copy_f90_mod and
touch steps do not happen on every "make".
Commit 34e1ac24 (Create Fortran info variables for .mod behavior,
2010-11-12) incorrectly taught GetFortranModuleDirectory to return a
relative path. We really want to use "." as the module directory only
as a workaround for compilers that do not do so by default. Therefore
we need this default only when generating the compiler command line and
not when scanning dependencies.
Revert the previous change to GetFortranModuleDirectory and apply the
change only at one of its call sites.
Commit 3827991e (...fix...not being able to remove try compile code,
2008-03-26) introduced a loop of RemoveFile attempts to overcome
anti-virus locks on recently created try_compile executables. Fix the
logic in this loop to work when the file is already missing.
The Express Edition does not come with 64-bit tools, but one can install
the "Microsoft Windows SDK v7.1" to get them. Detect this case and
check for the SDK. If found, set PlatformToolset to use the SDK tools.
Otherwise, fail with a concise and informative error.
Commit 1a0c166 (Store direct dependencies in solutions for VS >= 8,
2010-08-20) disabled use of VS-specific global dependency analysis.
Avoid perfoming the analysis at all when it is not needed. This also
prevents creation of bogus and unused '_UTILITY' targets since they are
not needed for dependencies.
Previously the command
find_path(VAR DOC "")
would crash because the argument pre-processing removed the DOC ""
arguments but the rest of the parsing assumes at least 2 arguments.
Reject the call with an error instead.
8b143fa Condense parsing of cache entries
122ebf1 Support manual cache entries
90abc3a Use cmCacheManager to load entries from the cache
6fe8624 Fix parsing of cache variables without a type
e01cce2 Allow add_dependencies() on imported targets (#10395)
bc7395c Merge branch 'vs-target-dependencies' into imported-target-dependencies
fd614e6 Use modern global dependency graph for VS < 8 deps
605f4bc Record edge type in global dependency graph
82596fc Merge branch 'vs8-direct-depends' into vs-target-dependencies
78c86f4 Exclude targets from the graphviz file based on a regex
5ea1e4c Collect targets and libs on demand instead of in the ctor
2a5790a Use std::cout instead of fprintf
7ba2d36 Enable/disable generating graphs depending on the target type
84ce612 Move the code for generating dot-files into separate class cmGraphVizWriter
a60b099 Generate separate dot files for each target, and a big one with everything.
487bd57 Properly insert all targets, also those which don't link to anything.
de2b2bf Move the code for collecting targets and libraries into separate functions
f7d56df Remove trailing whitespace and minor formatting changes for the dot-code
These mainly come from the command line or manual entries in the
CMakeCache.txt file. We want to stop at the first '=' because this is
what is most likely to have been meant. The variable can be quoted if
the '=' is intended.
Caveat: What if one wants both '"' and '=' in a variable name?
Imported targets do not themselves build, but we can follow dependencies
through them to find real targets. This allows imported targets to
depend on custom targets that provide the underlying files at build
time.
VS 7.1 and below have 2 behaviors that make the cmComputeTargetDepends
result difficult to use for solution-level dependencies. Update the
method cmGlobalVisualStudioGenerator::ComputeTargetDepends to document
the behaviors and work around them. Commit 1a0c166a (Store direct
dependencies in solutions for VS >= 8, 2010-08-20) isolated VS >= 8 from
this computation so those versions should be unaffected.
This change removes the last use of cmTarget::GetLinkLibraries for
purposes other than backward compatibility with legacy interfaces
(export_library_dependencies, VS 6 custom .dsp templates). Now the
cmComputeTargetDepends results are used for all generators so global
target dependency computation is fully centralized.
In cmComputeLinkInformation we match library names with a regular
expression, possibly extracting the 'lib' prefix. The regex component
to match the prefix always allows an empty prefix to be matched, as in
"(lib|)". Avoid every adding an empty prefix option earlier in the
regex, as in "(|lib|)", because it will be preferred and 'lib' will
never match.
156ae39 Don't disable colors in the CodeBlocks generator and minor cleanup.
e547fa7 Remove the "early alpha stage" comments about Eclipse and C::B
a02987a Don't enforce VERBOSE makefiles for the CodeBlocks generator
7b1421b Remove trailing whitespace
This commit adds support for a GRAPHVIZ_TARGET_IGNORE_REGEX variable
which can be set() in CMakeGraphVizOptions.cmake.
Targets matching this regex will be skipped when generating the graphviz
graphs.
Alex
In CMakeGraphVizOptions.cmake you can now set GRAPHVIZ_EXECUTABLES,
GRAPHVIZ_STATIC_LIBS, GRAPHVIZ_SHARED_LIBS and GRAPHVIZ_MODULE_LIBS
to TRUE or FALSE depending on whether you want graphs for the
targets of the respective types.
Alex
Delay computation of the command documentation until it is needed.
It is wasteful to do it in the constructor on every call.
Inspired-By: Christian Ehrlicher <Ch.Ehrlicher@gmx.de>
Define CMAKE_Fortran_MODDIR_DEFAULT and CMAKE_Fortran_MODOUT_FLAG
variables to help some Fortran compilers generate .mod files in the
current working directory.
Instead of enforcing verbose makefile, now the generated build command
includes "VERBOSE=1" so the output will be verbose when building in
C::B.
Also removed the now unused setForceVerboseMakefiles().
Alex
Look for the "/threads", "/libs:dll", and "/dbglibs" flags and convert
them to the proper RuntimeLibrary attribute value in the IDE. This is
a 3-to-1 flag mapping and such needs special handling in the parser.
The SubSystem attribute value must be "subSystemConsole" or
"subSystemWindows", not "1" or "2". Commit 20f49730 (Reset
platform/compiler info status for each language, 2010-09-28) exposed
this bug by (correctly) passing the /libs:dll flag to the compiler,
which chokes the linker if a value for "/subsystem:" is not given.
The behavior of add_custom_command when no DEPENDS option is specified
matches that of standard Make behavior, but it does not hurt to describe
it explicitly.
The big all-in-one file is basically unusable for e.g. kdelibs, it contains
around 1000 nodes and the created image is huuuuge !
Too big actually to be displayable or viewable or comprehensable.
Alex
This fixes bugs #0011355 and 0008342.
The merged patch is a contribution from Michael Lasmanis and Petri Hodju
with some extra documentation added by the merger.
Restore CMake 2.6 behavoir where the dart processing apparently was run from within the tests directory instead of the root of the build tree. This addresses issue reported on the VTK Dashboard where the Testing/Temporary directory is defined as ../../../Testing/Temporary but the DartProcessing is run with respect to the root of the build tree. This causes the regression/difference images to not be located by ctest and thus not uploaded to the dashboard.
BundleUtilities is better supported and allows including
shared Qt libs on other platforms. Also removed limitation
of static Qt for windows build of cmake-gui.
96a335f XCode generation should fail if lang isn't known
d3a8943 Fix which string is checked for in the test
220c5dc Add test that CMake errors with empty libs
The CodeBlocks generator used to omit files that were in siblings directories.
Though that filters out a few files that could be argued aren't of interest
to the user, it also potentialy hides files that are relevant to the user.
Patch by Daniel Teske.
Alex
See: http://bugreports.qt.nokia.com/browse/QTCREATORBUG-2250 for an example.
Visual Studio Express editions do not support solution folders,
so default behavior should be as if USE_FOLDERS global property
is OFF.
Also, allow folder names to be the same as target names: internally,
use a prefix to distinguish folder GUIDs from target GUIDs. Add
a target and folder with the same name in the ExternalProject
test to exercise this code.
For CMake itself, provide a new option CMAKE_USE_FOLDERS that
defaults to ON so that Visual Studio users get a nicely organized
CMake project. Express edition users will have to turn off the
CMAKE_USE_FOLDERS option in order to build CMake in the VS Express
IDE.
VS10 uses MSBuild underneath. The <Message></Message> CDATA are just
appended to "echo" and executed as a single command. Encode the message
such that it can be passed to echo. Convert newlines to tabs since they
cannot be printed this way.
In targets with no non-header files the linker language cannot be
determined. Since the target project file cannot be generated at all in
this case, give up as soon as it is detected. Otherwise the generation
code may try to run with uninitialized information.
Reverting abandoned topic xcode_source_group_fix_7932 left this source
slightly different due to trailing whitespace removal on some lines.
Remove all trailing whitespace from the file to make it consistent.
The original implementation of this generator accidentally used
"$(Configuration)/" for source-specific object file names. Correct it
to use "$(IntDir)/" just like the generators for all previous VS
versions. The target-wide output directory is "$(IntDir)/" already.
a798bb7 Avoid CustomCommand test failure on VS71 (#9963)
9b4ab06 Avoid CustomCommand test failure on VS71 (#9963)
9d2e648 No extra spaces in CustomCommand test (#9963)
269a4b8 Enable calling commands with : in argv[1] (#9963)
OK, on windows 7 after we untar some files,
sometimes we can not rename the directory after
the untar is done. This breaks the external project
untar and rename code. So, by default we will wait
1/10th of a second after the untar. If CMAKE_UNTAR_DELAY
is set in the env, its value will be used instead of 100.
With CMAKE_OSX_ARCHITECTURE settings such as $(ARCHS_STANDARD_32BIT),
the space inserted by the for loop would confuse Xcode if quoted. In
this particular example, what would be output would be:
ARCHS = "$(ARCHS_STANDARD_32BIT) ";
The Xcode UI does not recognize this as the built-in "Standards 32-bit"
architecture setting unless the space is removed.
From email explaining existence in the first place:
This is from before when the used checks throwing false
positives about unused due to changing the definition without
checking whether it *had* a value to begin with and me not
realizing they were false positives. I was thinking that it was
warning from ARGC et. al. not being used since the previous
macro or function call and the new value warning about
overwriting the old value.
Commit 7a18dd8e (Add searching of variables, 2003-03-07) added method
cmCursesMainForm::JumpToCacheEntry to search for cache entries whose
names match a given search string. The method also had a useless
argument "int idx" probably left from earlier development iterations and
hard-coded in all calls to the value '-1'. The method compared this
argument to the "NumberOfVisibleEntries" member which at the time was of
type "int" also.
Commit ff1f8d0b (Fix or cast more integer conversions in cmake,
2010-06-29) changed the type of "NumberOfVisibleEntries" to size_t to
fix other integer conversion warnings. An unsigned type makes sense
given the purpose of the member. However, this caused the '-1' signed
value to be converted to a large unsigned value in the above-mentioned
comparison, leading to incorrect behavior.
Fix the problem by removing the useless argument and the comparison.
eccc7d5 Merge branch 'allow_upper_case_cpp_and_others' into resolve/fix_target_name_with_dot_vs10/allow_upper_case_cpp_and_others
ed37fc3 VS2010: Set IntDir for utility and global targets.
e79e412 VS2010: Honor PROJECT_LABEL target property (#10611)
530ade6 Fix targets with . in the name for VS 10 IDE.
VS2010 uses IntDir as the location for writing log files for
what happens during custom build steps. With no IntDir settings,
all ExternalProject usage within the same CMakeLists.txt file
would result in multiple utility targets all trying to use the
same custom build log files.
With parallel builds, they would try to use them simultaneously
and result in file access errors, preventing the builds from
completing successfully.
Now each utility target has its own IntDir setting, and so, its
own custom build rule log files.
The solution seems hackish, but it works: for
NMake only, prepend a no-op command before each
real command that begins with ".
This is really a work-around for an NMake problem.
When a command begins with ", nmake truncates the
first argument to the command after the first :
in that arg. It has a parsing problem.
Workaround..., hackish..., but it should solve
the issue for #9963 and its related friends.
Also, modify the CustomCommand test to replicate
the problem reported in issue #9963. Before the
NMake specific code change, the test failed.
Now, it passes. Ahhhhhh.
The SetError method automatically starts the message with the name of
the command. Fix up calls to it so that we get "file DOWNLOAD..."
instead of "file FILE(DOWNLOAD ...". Also reduce length of long lines
containing these calls.
Since commit bc43b0f2 (Do not link library dependencies in VS solutions,
2009-10-20) CMake disables for VS >= 8 linking of a target to libraries
that happen to be listed as solution-level dependencies. Therefore we
can list the direct dependencies of each target in the solution file and
let VS handle transitive dependencies automatically.
Factor out reading of CMAKE_CONFIGURATION_TYPES and CMAKE_BUILD_TYPE
into cmMakefile::GetConfigurations. Read the former only in
multi-config generators.
5cdfc9c Improve wording of the error message of find_package() in config-mode
4969c3b Improve version notice in the generated message
e8ae504 Add option CONFIG_MODE to FPHSA()
b4b8f96 Don't create an empty element at the end of Foo_CONSIDERED_CONFIGS/VERSIONS
cc955a0 Small cleanup of FindPackageHandleStandardArgs.cmake
0367245 Replace the two vector<string,string> with one vector<struct{string,string}>
130b0e2 Improve error message in Config-mode when no appropriate version was found
dfe9c95 Record all considered Config files and their versions.
This work was started from a patch by Thomas Schiffer.
Thanks, Thomas!
See the newly added documentation of the FOLDER target
property for details.
Also added global properties, USE_FOLDERS and
PREDEFINED_TARGETS_FOLDER. See new docs here, too.
By default, the FOLDER target property is used to organize
targets into folders in IDEs that have support for such
organization.
This commit adds "solution folder" support to the Visual
Studio generators. Currently works with versions 7 through
10.
Also, use the new FOLDER property in the ExternalProject
test and in the CMake project itself.
As suggested by Brad, this improves the wording of the error message
in config-mode when config-files were found, but no suitable version.
The patch also contains the small loop-optimization suggested by Brad.
Alex
6acc71c New CMP0016 for deciding whether an unknown target in TLL() is an error.
da033b1 Remove trailing whitespace
6aef6d8 Just warn in case of a bad target as only argument for t_l_l()
c786635 Make target_link_libraries() complain if bad target name is used
43f96ea Remove trailing whitespace
a99f620 Fix unused parameter warning in VS 7.1 generator
79a88c3 Refactor VS <= 7.1 utility-depends workaround
325bdb2 Factor out duplicate VS target dependency code
6bea843 Factor out global generator ComputeTargetDepends method
ef4394d VS: Add ArchitectureId to VS 8 and 9 generators
4fec681 VS: Map /ENTRY linker option to EntryPointSymbol
be49129 VS: Add more TargetMachine option values
807fca4 VS: Convert PlatformName member to a virtual method
88e6447 Add macro ADD_FEATURE_INFO() and improve docs.
b353524 Improve wording of the documentation.
6fc88b2 Improve documentation.
3333878 Log the required package version and major improvement to FeatureSummary
Bill Hoffman
Brad King
KWSys Robot
Clinton Stimpson
David Cole
Ben Boeckel
Rolf Eike Beer
Alex Neundorf
Eric NOULARD
Zach Mullen
Campbell Barton
Mikkel Krautz