11 Known Causes of Trouble with GCC

This section describes known problems that affect users of GCC. Most of these are not GCC bugs per se—if they were, we would fix them. But the result for a user may be like the result of a bug.

Some of these problems are due to bugs in other software, some are missing features that are too much work to add, and some are places where people’s opinions differ as to what is best.

11.1 Actual Bugs We Haven’t Fixed Yet		Bugs we will fix later.
11.2 Interoperation		Problems using GCC with other compilers, and with certain linkers, assemblers and debuggers.
11.3 Incompatibilities of GCC		GCC is incompatible with traditional C.
11.4 Fixed Header Files		GCC uses corrected versions of system header files. This is necessary, but doesn’t always work smoothly.
11.5 Standard Libraries		GCC uses the system C library, which might not be compliant with the ISO C standard.
11.6 Disappointments and Misunderstandings		Regrettable things we can’t change, but not quite bugs.
11.7 Common Misunderstandings with GNU C++		Common misunderstandings with GNU C++.
11.8 Certain Changes We Don’t Want to Make		Things we think are right, but some others disagree.
11.9 Warning Messages and Error Messages		Which problems in your code get warnings, and which get errors.

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