[Bug gdb/20287] New: X32 and "gdb_static_assert (sizeof (nat_siginfo_t) == sizeof (siginfo_t))"

["noloader at gmail dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=20287

            Bug ID: 20287
           Summary: X32 and "gdb_static_assert (sizeof (nat_siginfo_t) ==
                    sizeof (siginfo_t))"
           Product: gdb
           Version: 7.11
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: noloader at gmail dot com
  Target Milestone: ---

I'm trying to build GDB 7.11 from sources under Debian X32
(http://debian-x32.org/).

After a standard "./configure" and building a few components, the compile
fails:

gcc -g -O2   -I. -I. -I./common -I./config
-DLOCALEDIR="\"/usr/local/share/locale\"" -DHAVE_CONFIG_H -I./../include/opcode
-I./../opcodes/.. -I./../readline/.. -I./../zlib -I../bfd -I./../bfd
-I./../include -I../libdecnumber -I./../libdecnumber  -I./gnulib/import
-Ibuild-gnulib/import    -Wall -Wpointer-arith -Wno-unused -Wunused-value
-Wunused-function -Wno-switch -Wno-char-subscripts -Wempty-body -Wpointer-sign
-Wmissing-prototypes -Wdeclaration-after-statement -Wmissing-parameter-type
-Wold-style-declaration -Wold-style-definition -Wformat-nonliteral  -c -o
amd64-linux-siginfo.o -MT amd64-linux-siginfo.o -MMD -MP -MF
.deps/amd64-linux-siginfo.Tpo ./nat/amd64-linux-siginfo.c
In file included from ./common/common-defs.h:71:0,
                 from ./nat/amd64-linux-siginfo.c:21:
                 ./common/gdb_assert.h:26:14: error: size of array
'never_defined_just_used_for_checking' is negative
               extern int never_defined_just_used_for_checking[(expr) ? 1 : -1]
               ^
               ./nat/amd64-linux-siginfo.c:113:1: note: in expansion of macro
'gdb_static_assert'
               gdb_static_assert (sizeof (nat_siginfo_t) == sizeof
(siginfo_t));
               ^
Makefile:2370: recipe for target 'amd64-linux-siginfo.o' failed
make[2]: *** [amd64-linux-siginfo.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: Leaving directory '/gdb-7.11.1/gdb'
Makefile:9156: recipe for target 'all-gdb' failed
make[1]: *** [all-gdb] Error 2
make[1]: Leaving directory '/gdb-7.11.1'
Makefile:846: recipe for target 'all' failed
make: *** [all] Error 2

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