[Bug c++/97022] New: -Werror flag aborts compilation of "current" git pull on main

[grgoffe at yahoo dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97022

            Bug ID: 97022
           Summary: -Werror flag aborts compilation of "current" git pull
                    on main
           Product: gcc
           Version: new-ra
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: grgoffe at yahoo dot com
  Target Milestone: ---

Hi,

I'm not sure this is a bug but it looks like one. In a current pull from the
source repository, compilation fails with msg 'cc1plus: all warnings being
treated as errors'

System is Fedora Core 34 (x86_64)(Rawhide). Builds have been succeeding but now
fail for past 3 days.

A full build log is available if desired.

THANKS! Be safe!

George...

/tools/gcc/obj-x86_64-pc-linux-gnu/./prev-gcc/xg++
-B/tools/gcc/obj-x86_64-pc-linux-gnu/./prev-gcc/
-B/usr/lsd/Linux/x86_64-pc-linux-gnu/bin/ -nostdinc++
-B/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-B/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs

-I/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu

-I/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/include
 -I/tools/gcc/gcc/libstdc++-v3/libsupc++
-L/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-L/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
 -fno-PIE -c   -g -O2 -fno-checking -gtoggle -DIN_GCC     -fno-exceptions
-fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute
-Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -Werror -fno-common  -DHAVE_CONFIG_H -I. -I.
-I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include
-I../../gcc/gcc/../libcpp/include -I/usr/lsd/Linux/include
-I/usr/lsd/Linux/include -I/usr/lsd/Linux/include 
-I../../gcc/gcc/../libdecnumber -I../../gcc/gcc/../libdecnumber/bid
-I../libdecnumber -I../../gcc/gcc/../libbacktrace   -o ggc-common.o -MT
ggc-common.o -MMD -MP -MF ./.deps/ggc-common.TPo ../../gcc/gcc/ggc-common.c
../../gcc/gcc/ggc-common.c: In function ‘void report_heap_memory_use()’:
../../gcc/gcc/ggc-common.c:1018:62: error: ‘mallinfo mallinfo()’ is deprecated
[-Werror=deprecated-declarations]
 1018 |     fprintf (stderr," {heap %luk}", (unsigned long)(mallinfo().arena /
1024));
      |                                                              ^
In file included from ../../gcc/gcc/system.h:736,
                 from ../../gcc/gcc/ggc-common.c:25:
/usr/include/malloc.h:118:24: note: declared here
  118 | extern struct mallinfo mallinfo (void) __THROW __MALLOC_DEPRECATED;
      |                        ^~~~~~~~
/tools/gcc/obj-x86_64-pc-linux-gnu/./prev-gcc/xg++
-B/tools/gcc/obj-x86_64-pc-linux-gnu/./prev-gcc/
-B/usr/lsd/Linux/x86_64-pc-linux-gnu/bin/ -nostdinc++
-B/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-B/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs

-I/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu

-I/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/include
 -I/tools/gcc/gcc/libstdc++-v3/libsupc++
-L/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-L/tools/gcc/obj-x86_64-pc-linux-gnu/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
 -fno-PIE -c   -g -O2 -fno-checking -gtoggle -DIN_GCC     -fno-exceptions
-fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute
-Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -Werror -fno-common  -DHAVE_CONFIG_H -I. -I.
-I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include
-I../../gcc/gcc/../libcpp/include -I/usr/lsd/Linux/include
-I/usr/lsd/Linux/include -I/usr/lsd/Linux/include 
-I../../gcc/gcc/../libdecnumber -I../../gcc/gcc/../libdecnumber/bid
-I../libdecnumber -I../../gcc/gcc/../libbacktrace   -o ggc-tests.o -MT
ggc-tests.o -MMD -MP -MF ./.deps/ggc-tests.TPo ../../gcc/gcc/ggc-tests.c
cc1plus: all warnings being treated as errors
make[3]: *** [Makefile:1123: ggc-common.o] Error 1
make[3]: *** Waiting for unfinished jobs....
rm gfdl.pod gcc.pod gfortran.pod gcov-dump.pod gcov-tool.pod fsf-funding.pod
gpl.pod cpp.pod gcov.pod lto-dump.pod
make[3]: Leaving directory '/export/home/tools/gcc/obj-x86_64-pc-linux-gnu/gcc'
make[2]: *** [Makefile:4785: all-stage2-gcc] Error 2
make[2]: Leaving directory '/export/home/tools/gcc/obj-x86_64-pc-linux-gnu'
make[1]: *** [Makefile:24608: stage2-bubble] Error 2
make[1]: Leaving directory '/export/home/tools/gcc/obj-x86_64-pc-linux-gnu'
make: *** [Makefile:999: all] Error 2