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326

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1
+4  Q: 

Recommended Clang command line options

The Manual for Clang seems to be work in progress, so could you help me formulate the definitive command line options for compiling ANSI-C (AKA C89, C90) with maximum strictness and relevant/helpful warnings?

Clang is a compiler front end for the C, C++, and Objective-C programming languages. It uses the Low Level Virtual Machine (LLVM) as its back end. It is still under development. Its goal is to offer a replacement to the GNU Compiler Collection (GCC)

+1  A: 

Clang's command-line arguments are, for the most part, GCC-compatible, so -std=c90 -pedantic should suffice.

Yktula  2010-04-18 21:28:16
I was told in the LLVM irc channel that there is no currently no complete listing for clang options so the general solution is in fact "man gcc"!
frou  2010-04-19 01:45:07
You could even have an alias for gcc as clang. Compile times should speed up quite a bit, and switching compilers shouldn't be a problem for most projects.
Yktula  2010-04-19 02:13:57
don't forget -Wall -Wextra
Good Person  2010-05-24 12:50:35

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