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Re: [PATCH] glibc 2.7 compilation failure with GCC 4.2.x due to 486+-specific memmove() redeclaration and _FORTIFY_SOURCEry

On Sun, Oct 21, 2007 at 11:50:10PM +0100, Nix wrote:

> Compilation of glibc 2.7 with GCC 4.2.x fails with this error:
> loki 14 /usr/packages/glibc/libc-patched/debug% gcc warning-nop.c -c -std=gnu99 -fgnu89-inline -O2 -Wall -Winline -Wwrite-strings -fmerge-all-constants -march=native -pipe -Wstrict-prototypes -mpreferred-stack-boundary=2  -g0 -O2 -fomit-frame-pointer -D__USE_STRING_INLINES    -I../include -I/usr/packages/glibc/i686-esperi/debug -I/usr/packages/glibc/i686-esperi -I../sysdeps/i386/elf -I../nptl/sysdeps/unix/sysv/linux/i386/i686 -I../nptl/sysdeps/unix/sysv/linux/i386 -I../sysdeps/unix/sysv/linux/i386 -I../nptl/sysdeps/unix/sysv/linux -I../nptl/sysdeps/pthread -I../sysdeps/pthread -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../sysdeps/unix/sysv/i386 -I../nptl/sysdeps/unix/sysv -I../sysdeps/unix/sysv -I../sysdeps/unix/i386 -I../nptl/sysdeps/unix -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/i386/i686/fpu -I../nptl/sysdeps/i386/i686 -I../sysdeps/i386/i686 -I../sysdeps/i386/i486 -I../nptl/sysdeps/i386/i486 -I../sysdeps/i386/fpu -I../nptl/sysdeps/i386 -I../sysdeps/i386 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic -I../nptl  -I.. -I../libio -I. -I /lib/modules/ -D_LIBC_REENTRANT -include ../include/libc-symbols.h       -o /usr/packages/glibc/i686-esperi/debug/warning-nop.o -MD -MP -MF /usr/packages/glibc/i686-esperi/debug/warning-nop.o.dt -MT /usr/packages/glibc/i686-esperi/debug/warning-nop.o
> In file included from ../include/bits/string3.h:1,
>                  from ../string/string.h:428,
>                  from ../include/string.h:49,
>                  from warning-nop.c:53:
> ../string/bits/string3.h:58: error: redefinition of ?memmove?
> ../string/string.h:59: warning: ?memset? declared inline after being called
> The cause of the error is quite obvious: memmove() is declared in
> string/string.h as

Umm, it appears you built Glibc with `--enable-omitfp' which is why it
doesn't fail for everyone. `-D__USE_STRING_INLINES' is the giveaway.

Not sure whether `--enable-omitfp' is a valid config these days...


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