[CMake] Xcode build settings and BullseyeCoverage

[Roman Wüger]

Hello,

 

I’m trying to configure and build a project with the “Xcode” generator and
the bullseye coverage tool.

Without the bullseye coverage tool it works fine but if I want to use it I
had to do the following workaround:
http://www.bullseye.com/help/tool-xcode.html

 

In short words, the clang and clang++ ExecPath would be changed from “clang”
=> “$(PLATFORM_DEVELOPER_BIN_DIR)/clang” and “clang++” =>
“$(PLATFORM_DEVELOPER_BIN_DIR)/clang++”

 

Before I made the changes, CMake finds clang/clang++ under
“/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolch
ain/usr/bin/clang”, with the changes CMake tries to find clang/clang++ under
“/Applications/Xcode.app/Contents/Developer/usr/bin/clang” which doesn’t
exist.

And I got the following error:

 

-- The C compiler identification is unknown

-- The CXX compiler identification is unknown

CMake Error at CMakeLists.txt:3 (project):

  No CMAKE_C_COMPILER could be found.

 

 

 

CMake Error at CMakeLists.txt:3 (project):

  No CMAKE_CXX_COMPILER could be found.

 

 

 

-- Configuring incomplete, errors occurred!

 

 

However, without the changes I could build the project with “cmake –build .
-- -showBuildSettings” which gives me the following information

 

.

.

.

    PLATFORM_DEVELOPER_APPLICATIONS_DIR =
/Applications/Xcode.app/Contents/Developer/Applications

    PLATFORM_DEVELOPER_BIN_DIR =
/Applications/Xcode.app/Contents/Developer/usr/bin

    PLATFORM_DEVELOPER_LIBRARY_DIR =
/Applications/Xcode.app/Contents/Developer/Library

    PLATFORM_DEVELOPER_SDK_DIR =
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Develop
er/SDKs

    PLATFORM_DEVELOPER_TOOLS_DIR =
/Applications/Xcode.app/Contents/Developer/Tools

    PLATFORM_DEVELOPER_USR_DIR =
/Applications/Xcode.app/Contents/Developer/usr

    PLATFORM_DIR =
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform

.

.

.

 

Why doesn’t find CMake Xcode with the modified path?

 

Is there also a way to set generator specific things during configure time?

At the moment it is only possible with the build command: “cmake -build . --
PLATFORM_DEVELOPER_BIN_DIR=PointToSomething” which sets the build settings
for Xcode

 

 

Thanks in advance

 

Best Regards

Roman

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