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 diff -durN gcc-3.4.6.orig/gcc/flow.c gcc-3.4.6/gcc/flow.c
2 --- gcc-3.4.6.orig/gcc/flow.c 2005-09-01 22:51:09.000000000 +0200
3 +++ gcc-3.4.6/gcc/flow.c 2007-08-15 23:00:30.000000000 +0200
5 rtx set_src = SET_SRC (pc_set (BB_END (bb)));
6 rtx cond_true = XEXP (set_src, 0);
7 rtx reg = XEXP (cond_true, 0);
8 + enum rtx_code inv_cond;
10 if (GET_CODE (reg) == SUBREG)
11 reg = SUBREG_REG (reg);
12 @@ -1892,11 +1893,13 @@
13 in the form of a comparison of a register against zero.
14 If the condition is more complex than that, then it is safe
15 not to record any information. */
16 - if (GET_CODE (reg) == REG
17 + inv_cond = reversed_comparison_code (cond_true, BB_END (bb));
18 + if (inv_cond != UNKNOWN
19 + && GET_CODE (reg) == REG
20 && XEXP (cond_true, 1) == const0_rtx)
23 - = gen_rtx_fmt_ee (reverse_condition (GET_CODE (cond_true)),
24 + = gen_rtx_fmt_ee (inv_cond,
25 GET_MODE (cond_true), XEXP (cond_true, 0),
27 if (GET_CODE (XEXP (set_src, 1)) == PC)