On 07/01/2015 11:17 PM, Jim Wilson wrote: > On Wed, Jul 1, 2015 at 10:21 PM, Jason Merrill <ja...@redhat.com> wrote: >> This document also says that "A workaround until libraries get updated is to >> include <cstddef> or <stddef.h> before any headers from that library." >> Can you try modifying the graphite* files accordingly? > > Right. I forgot to try that. Trying it now, I see that my build gets > past the point that it failed, so this does appear to work. I won't > be able to finish a proper test until tomorrow, but for now this patch > seems to work.
Since the patch to include system.h before the isl header did not work, I went ahead and tested this patch to add stddef.h includes before the isl headers. I tested it with an x86_64 bootstrap and make check. There were no problems caused by my patch. Though as a side effect of doing this, I discovered another minor problem with the C++ version change. This caused one additional testsuite failure. It also caused a bunch of tests to start working, which is nice, but the new failure needs to be addressed. /home/wilson/FOSS/GCC/gcc-svn/gcc/testsuite/gcc.dg/plugin/wide-int_plugin. c: In function 'void test_double_int_round_udiv()': /home/wilson/FOSS/GCC/gcc-svn/gcc/testsuite/gcc.dg/plugin/wide-int_plugin. c:13:45: error: narrowing conversion of '-1' from ' int' to 'long unsigned int' inside { } [-Wnarrowing] double_int dmax = { -1, HOST_WIDE_INT_MAX }; ^ /home/wilson/FOSS/GCC/gcc-svn/gcc/testsuite/gcc.dg/plugin/wide-int_plugin. c:14:33: error: narrowing conversion of '-1' from ' int' to 'long unsigned int' inside { } [-Wnarrowing] double_int dnegone = { -1, -1 }; ^ ... FAIL: gcc.dg/plugin/wide-int_plugin.c compilation The code compiles with -std=c++98. It does not compile with -std=c++14. So this testcase should be fixed to work with c++14. Or the c++14 support should be fixed if it is broken. Jim