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Re: [PATCH] PR c++/80544 strip cv-quals from cast results


On 24/05/17 20:09 -0700, Andrew Pinski wrote:
On Wed, May 24, 2017 at 8:07 PM, Andrew Pinski <pinskia@gmail.com> wrote:
This change caused a bootstrap failure on aarch64-linux-gnu and
x86_64-linux-gnu:
In file included from ../../gcc/gcc/system.h:691:0,
                 from ../../gcc/gcc/read-rtl.c:31:
../../gcc/gcc/read-rtl.c: In member function ‘const char*
md_reader::apply_iterator_to_string(const char*)’:
../../gcc/gcc/../include/libiberty.h:722:38: error: type qualifiers
ignored on cast result type [-Werror=ignored-qualifiers]
 # define alloca(x) __builtin_alloca(x)
                                      ^
../../gcc/gcc/../include/libiberty.h:727:47: note: in expansion of
macro ‘alloca’
    char *const libiberty_nptr = (char *const) alloca (libiberty_len); \
                                               ^~~~~~
../../gcc/gcc/read-rtl.c:380:21: note: in expansion of macro ‘ASTRDUP’
   base = p = copy = ASTRDUP (string);
                     ^~~~~~~

I know you did not touch libiberty.h but that is emitting an error.
Did you test your patch with a full bootstrap?  I thought that was
recorded as being required now for C++ patches; I know a few years
back when the GCC was not compiling as C++, it was not required.

Oh it looks like it was already fixed by revision 248442.  Just my
build automated build was not done for that timeframe.

I thought I did, but a --disable-bootstrap slipped in there,
copy&pasted from another build, sorry.



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