The CMAKE_<LANG>_STANDARD_DEFAULT variable indicates whether the
compiler has any notion of standard levels and that CMake knows
about them. If no language standard levels are available, skip
all logic to attempt to add a flag for the level.
Also fail with an internal error if a bad default value is set.
The refactoring in commit v3.1.0-rc1~812^2~16 (stringapi: Pass
configuration names as strings, 2014-02-09) broke the code path in
cmLocalGenerator::GenerateInstallRules that intends to pick a default
install configuration for multi-config generators. Fix the logic to
select an empty default configuration only when using a single-config
generator whose CMAKE_BUILD_TYPE is not set.
Inspired-by: Roman Wüger <roman.wueger@gmx.at>
Reported-by: NoRulez <norulez@me.com>
When staging the package installation, if the first file in a directory
happens to be a symbolic link, make sure we create the directory before
trying to create the link.
In commit v3.0.0-rc1~222^2 (Makefile: Allow "gmake target1 target2 -j",
2013-12-18) we added generation of a .NOTPARALLEL rule and told the
generator it is "symbolic" because the file will never be created.
This causes ".PHONY" to be used. However, "clearmake" does not support
parsing of .PHONY specifically for .NOTPARALLEL, so simply drop it.
This should not affect the role of the .NOTPARALLEL rule for GNU make.
The "/showIncludes" flag is only available with MS C and C++ compilers,
and on compilers that "simulate" them (like Intel for Windows). Fix our
logic to choose this type only for MS tools with these languages. All
other cases need to use "deps = gcc" and define DEP_FILE in the build
rule.
Define an empty string in CMAKE_<LANG>_STANDARD_DEFAULT to mean that
the toolchain has no notion of lanuage standard levels. In this case
the <LANG>_STANDARD[_REQUIRED] properties will have no effect.
Update the RunCMake.CompileFeatures test to exclude the
LinkImplementationFeatureCycle test when there is no standard default.
It can never fail because no use of specific features will adjust the
CXX_STANDARD level required for any target since the standard levels
have no meaning in this case.
Otherwise building such projects gives:
warning APPX1901: The DefaultLanguage property is either missing from
the project file or does not have a value
ab9fa54d Xcode: Switch to internal CMAKE_MAKE_PROGRAM lookup by generator (#15324)
11e2e6ca Xcode: Select make program at build time
e4055a61 Xcode: Add internal API to find xcodebuild
Stephen Kelly
Brad King
Kitware Robot
Ben Boeckel
Bill Hoffman
Robert Goulet