clang doesn't accept -c flag

[llvmbot]

Bugzilla Link	2772
Resolution	INVALID
Resolved on	Mar 12, 2010 00:55
Version	unspecified
OS	Linux
Reporter	LLVM Bugzilla Contributor
CC	@tkremenek

Extended Description

AnMaster on IRC points out that the clang driver doesn't seem to follow POSIX standard for a compiler's flags:

SYNOPSIS
c99 [-c][-D name[=value]]...[-E][-g][-I directory] ... [-L directory]
... [-o outfile][-Ooptlevel][-s][-U name]... operand
...

notably that the -c flag is missing.

[tkremenek]

The executable 'clang' is not meant to be a drop in replacement for 'cc'. That's the purpose of 'ccc', which calls 'clang' with the proper arguments. 'ccc' definitely accepts -c. Eventually we will evolve the driver infrastructure to have a good cc replacement that is not implemented in python.

Marking as invalid.

[llvmbot]

Thanks Ted. I guess the confusion here is caused by ccc not being installed by default.