[cmake-developers] [CMake 0013823]: Auto-include Clang default include paths in Eclipse CDT

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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http://public.kitware.com/Bug/view.php?id=13823 
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Reported By:                SirHase
Assigned To:                
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Project:                    CMake
Issue ID:                   13823
Category:                   CMake
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
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Date Submitted:             2012-12-30 15:47 EST
Last Modified:              2012-12-30 15:47 EST
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Summary:                    Auto-include Clang default include paths in Eclipse
CDT
Description: 
When generating a new Eclipse CDT project using CMake with Clang compiler
(/usr/bin/clang++), the project do not includes the default Clang
include/preprocessors symbols list, as it does when I use gcc.

Without the preprocessor symbols and include paths, Eclipse reports a lot of
false errors.

In Additional Information I talk about a solution, but may not be ideal because
requires extra steps, and the user needs to manually include the projects
compilation flags (-std=c++11 -stdlib=libc++).

Steps to Reproduce: 
1) Create the first example from:
http://www.cmake.org/cmake/help/cmake_tutorial.html

2) Generate a Eclipse CDT project, specify native compiler to /usr/bin/clang and
/usr/bin/clang++ for C and C++ respectively

3) Import this new project in Eclipse

4) Check the include paths, it should be empty

Additional Information: 
Software used:
Eclise IDE Version: Juno Service Release 1. Build id: 20121004-1855
Eclise CDT Version: 8.1.1.201209170703
Clang: 3.1 (branches/release_31) x86_64-pc-linux-gnu
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Adding the include paths manually may not work because Eclipse can "forget" it
after a restart.
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Using Eclipse automatic path/symbols list discovery solution:
Setting the discovery command to: "/usr/bin/clang++ -E -P -v -dD
${plugin_state_location}/${specs_file} -std=c++11 -stdlib=libc++"(here I use
C++11, so each environment will have it different, cant use CMake flags) then in
"C/C++ Project Paths" -> "Path Containers"  add paths/symbols with this
discovery. This way, Eclipse preserves both CMake and default Clang
includes/symbols.
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Issue History 
Date Modified    Username       Field                    Change               
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2012-12-30 15:47 SirHase        New Issue                                    
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