On 18-May-15 06:50, Paul Smith wrote:
On Sun, 2015-05-17 at 14:43 +0200, Ruslan Baratov via CMake wrote:
As far as I know extra flags set by Xcode itself. You can use
XCODE_ATTRIBUTE_* target properties to enable/disable warnings. This
table can be helpful:
https://github.com/ruslo/leathers/wiki/List#xcodeclang-table
Thanks for your reply... but I don't quite understand what this table is
telling me.
This table tells you what attribute you need to set to disable/enable
specific warning.
E.g.:
| Clang | Xcode |
+-----------------+----------------------------+
| enum-conversion | CLANG_WARN_ENUM_CONVERSION |
Makefile generator:
> cat CMakeLists.txt
cmake_minimum_required(VERSION 3.0)
project(Foo)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wenum-conversion")
add_library(foo foo.cpp)
> cmake -H. -B_builds "-GUnix Makefiles" -DCMAKE_VERBOSE_MAKEFILE=ON
> cmake --build _builds
/.../usr/bin/c++ -Wenum-conversion ...
Xcode generator (default):
> cat CMakeLists.txt
cmake_minimum_required(VERSION 3.0)
project(Foo)
add_library(foo foo.cpp)
> cmake -H. -B_builds -GXcode
> cmake --build _builds
/.../usr/bin/clang ... -Wno-enum-conversion ...
Xcode generator (enable):
> cat CMakeLists.txt
cmake_minimum_required(VERSION 3.0)
project(Foo)
add_library(foo foo.cpp)
set_target_properties(
foo
PROPERTIES
XCODE_ATTRIBUTE_CLANG_WARN_ENUM_CONVERSION YES
)
> cmake -H. -B_builds -GXcode
> cmake --build _builds
/.../usr/bin/clang ... -Wenum-conversion ...
Xcode generator (disable):
> cat CMakeLists.txt
cmake_minimum_required(VERSION 3.0)
project(Foo)
add_library(foo foo.cpp)
set_target_properties(
foo
PROPERTIES
XCODE_ATTRIBUTE_CLANG_WARN_ENUM_CONVERSION NO
)
> cmake -H. -B_builds -GXcode
> cmake --build _builds
/.../usr/bin/clang ... -Wno-enum-conversion ...
As mentioned, these builds are performed on build servers running OSX,
where basically the code is retrieved via Git, then cmake is run, then
cmake -build is run (which invokes xcodebuild via the command line), all
using SSH commands from a build control server. At no time is Xcode
itself invoked.
I don't understand what you mean by "no time is Xcode itself invoked".
When you set generator to "Unix Makefiles" then Makefile project generated:
> cmake -H. -B_builds "-GUnix Makefiles"
> ls _builds/Makefile
_builds/Makefile
when you set generator to "Xcode" then Xcode project used:
> cmake -H. -B_builds -GXcode
> ls _builds/Foo.xcodeproj/project.pbxproj
_builds/Foo.xcodeproj/project.pbxproj
so there is no difference between:
* open Xcode project and hit "Build"
* cmake --build _builds
* (cd _builds && xcodebuild -alltargets)
So, if the properties you describe are Xcode settings that need to be
tweaked then do you know if there is some command-line way to do it,
that I could encode into my build scripts for example?
See example above.
Also you can use some helper functions to do it in cross-platform way:
sugar_generate_warning_flags(
target_compile_options
target_properties
ENABLE enum-conversion
)
set_target_properties(
foo
PROPERTIES
${target_properties}
COMPILE_OPTIONS
"${target_compile_options}"
)
This will set MSVC flags too. See this wiki:
https://github.com/ruslo/sugar/wiki/Cross-platform-warning-suppression
Cheers, Ruslo
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