Em Fri, Sep 08, 2017 at 10:04:05AM +0200, Jörg Krause escreveu: > On Mon, 2017-03-06 at 16:38 -0300, Arnaldo Carvalho de Melo wrote: > > When building with clang on a musl libc system, Alpine Linux, we end up > > hitting a problem where memset() is used but its prototype is not > > present, add it to avoid this:
> > bench/futex-wake.c:99:3: error: implicitly declaring library function > > 'memset' with type 'void *(void *, int, unsigned long)' > > [-Werror,-Wimplicit-function-declaration] > > CPU_ZERO(&cpu); > > ^ > > /usr/include/sched.h:127:23: note: expanded from macro 'CPU_ZERO' > > #define CPU_ZERO(set) CPU_ZERO_S(sizeof(cpu_set_t),set) > > ^ > > /usr/include/sched.h:110:30: note: expanded from macro 'CPU_ZERO_S' > > #define CPU_ZERO_S(size,set) memset(set,0,size) > > ^ > > bench/futex-wake.c:99:3: note: include the header <string.h> or > > explicitly provide a declaration for 'memset' > In my opinion the musl <shed.h> header file should include <string.h>. Agreed. > I've reported the issue to the musl mailing list: > http://www.openwall.com/lists/musl/2017/09/08/1 Thanks for reporting that to them, - Arnaldo
