https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95381
--- Comment #9 from John Paul Adrian Glaubitz <glaubitz at physik dot
fu-berlin.de> ---
I have bisected this now and it turns out, the regression was introduced by:
commit eede1a6bf3a4f33fa5afef9e4dfc80c4dd89eeb3
Author: Nick Clifton <ni...@redhat.com>
Date: Mon Jun 18 10:39:01 2018 +0000
Ensure that control characters in user supplied error and warning messages
are escaped.
PR 84195
* tree.c (escaped_string): New class. Converts an unescaped
string into its escaped equivalent.
(warn_deprecated_use): Use the new class to convert the
deprecation message, if present.
(test_escaped_strings): New self test.
(test_c_tests): Add test_escaped_strings.
From-SVN: r261697
Interestingly, later SVN/git revisions still built fine, with 20191130 being
the last good one:
> https://buildd.debian.org/status/logs.php?pkg=gcc-snapshot&arch=m68k
I am building with the following command line:
../configure --with-gcc-major-version-only --program-prefix= --enable-shared
--enable-linker-build-id --disable-nls --enable-clocale=gnu
--enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new
--enable-gnu-unique-object --disable-libssp --disable-libitm
--disable-libsanitizer --disable-libquadmath --disable-libquadmath-support
--enable-plugin --with-system-zlib --disable-libphobos --enable-objc-gc=auto
--enable-multiarch --disable-werror --disable-werror --disable-multilib
--enable-checking=yes --build=m68k-linux-gnu --host=m68k-linux-gnu
--target=m68k-linux-gnu --enable-languages=c++,jit --enable-host-shared
--disable-bootstrap && make -j64
from git. No local Debian patches applied.
My suspicion is that either this change triggers a bug in some external library
or a change in an external library made this bug visible.
Any suggestions? The only thing that it's odd on m68k is the 16-bit native
alignment, but I'm not sure whether that's relevant here.
