complibs/cloog: create missing m4 dir
Because we now patch configure.in and configure, the Makefile quicks
in a re-build rule as the source files are now more recent than the
bundled generated files, and that fails because the m4 directory
is missing, although on some systems where aclocal is not installed,
the re-build rule does nothing (except a warning).
Always create tht directory.
Reported-by: Per Arnold Blaasmo <per-arnold.blaasmo@atmel.com>
[Also thanks to Thomas De Schampheleire <patrickdepinguin@gmail.com>
for some digging works on this issue]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
1 Fix memset on PowerPC 8xx, by Nye Liu:
2 http://sourceware.org/ml/crossgcc/2008-10/msg00067.html
5 I am working on a powerpc 860 toolchain, but I am having problems
6 convincing glibc to not emit code that uses the dcbz instruction (CPU15
7 dcbX bug). The source of the problem is sysdeps/powerpc/power3/memset.S
9 --- glibc-2.7/sysdeps/powerpc/powerpc32/memset.S 2007-03-26 13:09:07.000000000 -0700
10 +++ glibc-2.7/sysdeps/powerpc/powerpc32/memset.S.new 2008-10-23 20:28:52.000000000 -0700
12 clrrwi. rALIGN, rLEN, 5
13 mtcrf 0x01, rLEN /* 40th instruction from .align */
15 +#ifndef BROKEN_PPC_8xx_CPU15
16 /* Check if we can use the special case for clearing memory using dcbz.
17 This requires that we know the correct cache line size for this
18 processor. Getting the __cache_line_size may require establishing GOT
19 addressability, so branch out of line to set this up. */
20 beq cr1, L(checklinesize)
23 /* Store blocks of 32-bytes (256-bits) starting on a 32-byte boundary.
24 Can't assume that rCHR is zero or that the cache line size is either
26 add rMEMP, rMEMP, rALIGN
27 b L(medium_tail2) /* 72nd instruction from .align */
29 +#ifndef BROKEN_PPC_8xx_CPU15
32 /* Clear cache lines of memory in 128-byte chunks.
37 +#endif /* ! BROKEN_PPC_8xx_CPU15 */
45 +#ifndef BROKEN_PPC_8xx_CPU15
51 clrrwi. rALIGN, rLEN, 5
53 +#endif /* ! BROKEN_PPC_8xx_CPU15 */
56 libc_hidden_builtin_def (memset)