Can't compile GCC4.9.3 with GCC6.1.1

[rr-]

I'm using MXE master with the UPX and UCL patches.

Machine:

Linux tornado 4.5.4-1-ARCH #1 SMP PREEMPT Wed May 11 22:21:28 CEST 2016 x86_64 GNU/Linux

Build session:

rr-@tornado:~/src/ext/mxe$ MXE_VERBOSE=1 make gcc               
[using autodetected 6 job(s)]
[build]     gcc                    i686-w64-mingw32.static                                                

Failed to build package gcc for target i686-w64-mingw32.static!
------------------------------------------------------------
make[1]: Entering directory '/home/rr-/src/ext/mxe'
uname -a
Linux tornado 4.5.4-1-ARCH #1 SMP PREEMPT Wed May 11 22:21:28 CEST 2016 x86_64 GNU/Linux
git log --pretty=tformat:"%H - %s [%ar] [%d]" -1
4eb80ed433988e96d4063889e2ce9933a0696fc6 - gcc6: fix compiling ucl [54 minutes ago] [ (HEAD -> upx-fix)]
lsb_release -a 2>/dev/null || sw_vers 2>/dev/null || true
autoconf --version 2>/dev/null | head -1
autoconf (GNU Autoconf) 2.69
automake --version 2>/dev/null | head -1
automake (GNU automake) 1.15
gcc --version
gcc (GCC) 6.1.1 20160501
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
g++ --version
g++ (GCC) 6.1.1 20160501
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
python --version
Python 3.5.1
perl --version 2>&1 | head -3
This is perl 5, version 22, subversion 2 (v5.22.2) built for x86_64-linux-thread-multi
rm -rf   '/home/rr-/src/ext/mxe/tmp-gcc-i686-w64-mingw32.static'
mkdir -p '/home/rr-/src/ext/mxe/tmp-gcc-i686-w64-mingw32.static'
cd '/home/rr-/src/ext/mxe/tmp-gcc-i686-w64-mingw32.static' &&    tar xjf '/home/rr-/src/ext/mxe/pkg/gcc-4.9.3.tar.bz2'
cd '/home/rr-/src/ext/mxe/tmp-gcc-i686-w64-mingw32.static/gcc-4.9.3'
(cd '/home/rr-/src/ext/mxe/tmp-gcc-i686-w64-mingw32.static/gcc-4.9.3' && patch -p1 -u) < /home/rr-/src/ext/mxe/src/gcc-1.patch

...
...
...
(lots of output)
...
...
...

In file included from /home/rr-/src/ext/mxe/tmp-gcc-i686-w64-mingw32.static/gcc-4.9.3/gcc/cp/except.c:1013:0:
cfns.gperf: In function ‘const char* libc_name_p(const char*, unsigned int)’:
cfns.gperf:101:1: error: ‘const char* libc_name_p(const char*, unsigned int)’ redeclared inline with ‘gnu_inline’ attribute
cfns.gperf:26:14: note: ‘const char* libc_name_p(const char*, unsigned int)’ previously declared here
cfns.gperf: At global scope:
cfns.gperf:26:14: warning: inline function ‘const char* libc_name_p(const char*, unsigned int)’ used but never defined
Makefile:1058: recipe for target 'cp/except.o' failed
make[3]: *** [cp/except.o] Error 1
make[3]: *** Waiting for unfinished jobs....
rm gfortran.pod gcc.pod
make[3]: Leaving directory '/home/rr-/src/ext/mxe/tmp-gcc-i686-w64-mingw32.static/gcc-4.9.3.build/gcc'
Makefile:3970: recipe for target 'all-gcc' failed
make[2]: *** [all-gcc] Error 2
make[2]: Leaving directory '/home/rr-/src/ext/mxe/tmp-gcc-i686-w64-mingw32.static/gcc-4.9.3.build'
Makefile:550: recipe for target 'build-only-gcc_i686-w64-mingw32.static' failed
make[1]: *** [build-only-gcc_i686-w64-mingw32.static] Error 2
make[1]: Leaving directory '/home/rr-/src/ext/mxe'
real    2m19.980s
user    9m0.787s
sys 0m27.533s
------------------------------------------------------------
[log]      /home/rr-/src/ext/mxe/log/gcc_i686-w64-mingw32.static

Makefile:550: recipe for target '/home/rr-/src/ext/mxe/usr/i686-w64-mingw32.static/installed/gcc' failed
make: *** [/home/rr-/src/ext/mxe/usr/i686-w64-mingw32.static/installed/gcc] Error 1

Related:

https://gcc.gnu.org/ml/gcc-patches/2015-08/msg00375.html

[tonytheodore]

Fixed upstream: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=ec1cc0263f156f70693a62cf17b254a0029f4852

[Leila-Codes]

Cheers for the patch! Looks like it fixed GCC4.9.2 for me on Fedora 28 too!