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Date Submitted

Last Update

0007045

CMake

public

2008-05-18 23:57

2008-08-19 15:55

Reporter

Eric Wing

Assigned To

Priority

normal

Severity

minor

Reproducibility

always

Status

closed

Resolution

fixed

Platform

OS Version

Product Version

CMake-2-6

Target Version

Fixed in Version

Summary

0007045: CMake compiles Obj-C (.m) files with g++ instead of gcc (Mac)

Description

I noticed that .m files are being compiled with g++ instead of gcc in non-C++ projects in the Makefile generator. The .m is for Objective-C, the .mm is for Objective-C++. In the former case, gcc should be used, not g++. This gives me linking problems in certain cases, presumably dealing with C++ name mangling, gcc incompatibility (such as linking stuff compiled with gcc 3.3 vs gcc 4.0), or stricter type checking.

Attached are two simple test programs, one with .m, the other with .mm.
With the Makefiles, gcc should be invoked in the .m test. g++ should be invoked (as it is now) with the .mm file.

The Xcode generator does the correct thing.

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No tags attached.

Attached Files

HelloObjC.tar.gz [^] (726 bytes) 2008-05-18 23:57

Relationships

Notes
(0013082) Bill Hoffman (manager) 2008-08-19 15:55	cvs commit -m "BUG: fix for 7045, use gcc for .m" cmSystemTools.cxx Committer: Bill Hoffman <bill.hoffman@kitware.com> /cvsroot/CMake/CMake/Source/cmSystemTools.cxx,v <-- cmSystemTools.cxx new revision: 1.384; previous revision: 1.383

Issue History
Date Modified	Username	Field	Change
2008-05-18 23:57	Eric Wing	New Issue
2008-05-18 23:57	Eric Wing	File Added: HelloObjC.tar.gz
2008-08-19 15:55	Bill Hoffman	Status	new => closed
2008-08-19 15:55	Bill Hoffman	Note Added: 0013082
2008-08-19 15:55	Bill Hoffman	Resolution	open => fixed