On Tue, 9 Nov 2021, Xi Ruoyao via Gcc-patches wrote: > POSIX says: > > On some implementations, if buf is a null pointer, getcwd() may obtain > size bytes of memory using malloc(). In this case, the pointer returned > by getcwd() may be used as the argument in a subsequent call to free(). > Invoking getcwd() with buf as a null pointer is not recommended in > conforming applications. > > This produces an error building GCC with --enable-werror-always: > > ../../../fixincludes/fixincl.c: In function ‘process’: > ../../../fixincludes/fixincl.c:1356:7: error: argument 1 is null but > the corresponding size argument 2 value is 4096 [-Werror=nonnull]
Isn't this warning actually a glibc bug <https://sourceware.org/bugzilla/show_bug.cgi?id=27476>? -- Joseph S. Myers jos...@codesourcery.com
