MantisBT - CMake
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ID	Project	Category	View Status	Date Submitted	Last Update
0012639	CMake	CMake	public	2011-12-23 17:42	2011-12-24 14:18

Reporter	Pau Garcia i Quiles
Assigned To	Bill Hoffman
Priority	normal	Severity	block	Reproducibility	always
Status	closed	Resolution	no change required
Platform	MSVC2010SP1	OS	Windows	OS Version	7 SP1 64-bit
Product Version	CMake 2.8.6
Target Version		Fixed in Version

Summary	0012639: CXX_FLAGS is not set unless a project asks for C++
Description	Visual C++ 2010 does not support C99 yet and it seems it will be a long time before MSVC supports it. For now, the usual work-around is to build the project as C++. I'd like to build as C if using mingw, and as C++ if using MSVC. As Bill and others suggested, I'm using set_source_files_properties(<SRCS> PROPERTIES LANGUAGE CXX). Problem is the configure step works fine but the generation step fails because CXX_FLAGS have not been set. Work-around: include a dummy project that just sets "project(dummy CXX)" so that C++ flags are registered. See this thread for more details: http://www.cmake.org/pipermail/cmake/2011-December/048222.html [^]
Steps To Reproduce	See attached minimal tests cases: - fails - passes (using workaround)
Additional Information	The proper solution is to look for CXX_FLAGS if any source file has a property involving C++ language.
Tags	No tags attached.
Relationships
Attached Files	cmakecxx.7z (531) 2011-12-23 17:42 https://public.kitware.com/Bug/file/4150/cmakecxx.7z

Issue History
Date Modified	Username	Field	Change
2011-12-23 17:42	Pau Garcia i Quiles	New Issue
2011-12-23 17:42	Pau Garcia i Quiles	File Added: cmakecxx.7z
2011-12-24 11:50	Pau Garcia i Quiles	Note Added: 0028072
2011-12-24 14:18	Bill Hoffman	Status	new => closed
2011-12-24 14:18	Bill Hoffman	Assigned To	=> Bill Hoffman
2011-12-24 14:18	Bill Hoffman	Resolution	open => no change required

Notes