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Chapter 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

  • The fixincludes script interacts badly with automounters; if the directory of system header files is automounted, it tends to be unmounted while fixincludes is running. This would seem to be a bug in the automounter. We don't know any good way to work around it.

  • The fixproto script will sometimes add prototypes for the sigsetjmp and siglongjmp functions that reference the jmp_buf type before that type is defined. To work around this, edit the offending file and place the typedef in front of the prototypes.

  • When -pedantic-errors is specified, GCC will incorrectly give an error message when a function name is specified in an expression involving the comma operator.

  Published under the terms of the GNU General Public License Design by Interspire