make: Entering directory '/usr/src/linux-headers-5.4.0-050400rc4-generic'
  AR      /tmp/builderr//built-in.a - due to target missing
  CC [M]  /tmp/builderr//conftest.o - due to target missing
In file included from <command-line>:0:0:
./arch/x86/include/asm/page_64.h: In function ‘clear_page’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:256:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE_2("call %P[old]", "call %P[new1]", feature1,\
  ^~~~~~~~~~
./arch/x86/include/asm/page_64.h:49:2: note: in expansion of macro ‘alternative_call_2’
  alternative_call_2(clear_page_orig,
  ^~~~~~~~~~~~~~~~~~
In file included from ./arch/x86/include/asm/barrier.h:5:0,
                 from ./include/linux/compiler.h:256,
                 from ./include/linux/export.h:44,
                 from ./include/linux/linkage.h:7,
                 from ./include/linux/kernel.h:8,
                 from ./include/linux/list.h:9,
                 from ./include/linux/module.h:9,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/alternative.h:128:2: error: expected identifier or ‘(’ before string constant
  "# ALT: oldinstr2\n"         \
  ^
./arch/x86/include/asm/alternative.h:168:2: note: in expansion of macro ‘OLDINSTR_2’
  OLDINSTR_2(oldinstr, 1, 2)     \
  ^~~~~~~~~~
./arch/x86/include/asm/alternative.h:256:23: note: in expansion of macro ‘ALTERNATIVE_2’
  asm_inline volatile (ALTERNATIVE_2("call %P[old]", "call %P[new1]", feature1,\
                       ^~~~~~~~~~~~~
./arch/x86/include/asm/page_64.h:49:2: note: in expansion of macro ‘alternative_call_2’
  alternative_call_2(clear_page_orig,
  ^~~~~~~~~~~~~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:256:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE_2("call %P[old]", "call %P[new1]", feature1,\
  ^~~~~~~~~~
./arch/x86/include/asm/page_64.h:49:2: note: in expansion of macro ‘alternative_call_2’
  alternative_call_2(clear_page_orig,
  ^~~~~~~~~~~~~~~~~~
In file included from <command-line>:0:0:
./arch/x86/include/asm/segment.h: In function ‘vdso_read_cpunode’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:240:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
  ^~~~~~~~~~
./arch/x86/include/asm/segment.h:254:2: note: in expansion of macro ‘alternative_io’
  alternative_io ("lsl %[seg],%[p]",
  ^~~~~~~~~~~~~~
In file included from ./arch/x86/include/asm/barrier.h:5:0,
                 from ./include/linux/compiler.h:256,
                 from ./include/linux/export.h:44,
                 from ./include/linux/linkage.h:7,
                 from ./include/linux/kernel.h:8,
                 from ./include/linux/list.h:9,
                 from ./include/linux/module.h:9,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/alternative.h:108:2: error: expected identifier or ‘(’ before string constant
  "# ALT: oldnstr\n"      \
  ^
./arch/x86/include/asm/alternative.h:159:2: note: in expansion of macro ‘OLDINSTR’
  OLDINSTR(oldinstr, 1)      \
  ^~~~~~~~
./arch/x86/include/asm/alternative.h:240:23: note: in expansion of macro ‘ALTERNATIVE’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
                       ^~~~~~~~~~~
./arch/x86/include/asm/segment.h:254:2: note: in expansion of macro ‘alternative_io’
  alternative_io ("lsl %[seg],%[p]",
  ^~~~~~~~~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:240:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
  ^~~~~~~~~~
./arch/x86/include/asm/segment.h:254:2: note: in expansion of macro ‘alternative_io’
  alternative_io ("lsl %[seg],%[p]",
  ^~~~~~~~~~~~~~
./arch/x86/include/asm/special_insns.h: In function ‘clflushopt’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:240:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
  ^~~~~~~~~~
./arch/x86/include/asm/special_insns.h:205:2: note: in expansion of macro ‘alternative_io’
  alternative_io(".byte " __stringify(NOP_DS_PREFIX) "; clflush %P0",
  ^~~~~~~~~~~~~~
In file included from ./arch/x86/include/asm/barrier.h:5:0,
                 from ./include/linux/compiler.h:256,
                 from ./include/linux/export.h:44,
                 from ./include/linux/linkage.h:7,
                 from ./include/linux/kernel.h:8,
                 from ./include/linux/list.h:9,
                 from ./include/linux/module.h:9,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/alternative.h:108:2: error: expected identifier or ‘(’ before string constant
  "# ALT: oldnstr\n"      \
  ^
./arch/x86/include/asm/alternative.h:159:2: note: in expansion of macro ‘OLDINSTR’
  OLDINSTR(oldinstr, 1)      \
  ^~~~~~~~
./arch/x86/include/asm/alternative.h:240:23: note: in expansion of macro ‘ALTERNATIVE’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
                       ^~~~~~~~~~~
./arch/x86/include/asm/special_insns.h:205:2: note: in expansion of macro ‘alternative_io’
  alternative_io(".byte " __stringify(NOP_DS_PREFIX) "; clflush %P0",
  ^~~~~~~~~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:240:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
  ^~~~~~~~~~
./arch/x86/include/asm/special_insns.h:205:2: note: in expansion of macro ‘alternative_io’
  alternative_io(".byte " __stringify(NOP_DS_PREFIX) "; clflush %P0",
  ^~~~~~~~~~~~~~
./arch/x86/include/asm/processor.h: In function ‘prefetch’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:221:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
  ^~~~~~~~~~
./arch/x86/include/asm/processor.h:795:2: note: in expansion of macro ‘alternative_input’
  alternative_input(BASE_PREFETCH, "prefetchnta %P1",
  ^~~~~~~~~~~~~~~~~
In file included from ./arch/x86/include/asm/barrier.h:5:0,
                 from ./include/linux/compiler.h:256,
                 from ./include/linux/export.h:44,
                 from ./include/linux/linkage.h:7,
                 from ./include/linux/kernel.h:8,
                 from ./include/linux/list.h:9,
                 from ./include/linux/module.h:9,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/alternative.h:108:2: error: expected identifier or ‘(’ before string constant
  "# ALT: oldnstr\n"      \
  ^
./arch/x86/include/asm/alternative.h:159:2: note: in expansion of macro ‘OLDINSTR’
  OLDINSTR(oldinstr, 1)      \
  ^~~~~~~~
./arch/x86/include/asm/alternative.h:221:23: note: in expansion of macro ‘ALTERNATIVE’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
                       ^~~~~~~~~~~
./arch/x86/include/asm/processor.h:795:2: note: in expansion of macro ‘alternative_input’
  alternative_input(BASE_PREFETCH, "prefetchnta %P1",
  ^~~~~~~~~~~~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:221:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
  ^~~~~~~~~~
./arch/x86/include/asm/processor.h:795:2: note: in expansion of macro ‘alternative_input’
  alternative_input(BASE_PREFETCH, "prefetchnta %P1",
  ^~~~~~~~~~~~~~~~~
./arch/x86/include/asm/processor.h: In function ‘prefetchw’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:221:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
  ^~~~~~~~~~
./arch/x86/include/asm/processor.h:807:2: note: in expansion of macro ‘alternative_input’
  alternative_input(BASE_PREFETCH, "prefetchw %P1",
  ^~~~~~~~~~~~~~~~~
In file included from ./arch/x86/include/asm/barrier.h:5:0,
                 from ./include/linux/compiler.h:256,
                 from ./include/linux/export.h:44,
                 from ./include/linux/linkage.h:7,
                 from ./include/linux/kernel.h:8,
                 from ./include/linux/list.h:9,
                 from ./include/linux/module.h:9,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/alternative.h:108:2: error: expected identifier or ‘(’ before string constant
  "# ALT: oldnstr\n"      \
  ^
./arch/x86/include/asm/alternative.h:159:2: note: in expansion of macro ‘OLDINSTR’
  OLDINSTR(oldinstr, 1)      \
  ^~~~~~~~
./arch/x86/include/asm/alternative.h:221:23: note: in expansion of macro ‘ALTERNATIVE’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
                       ^~~~~~~~~~~
./arch/x86/include/asm/processor.h:807:2: note: in expansion of macro ‘alternative_input’
  alternative_input(BASE_PREFETCH, "prefetchw %P1",
  ^~~~~~~~~~~~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:221:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
  ^~~~~~~~~~
./arch/x86/include/asm/processor.h:807:2: note: in expansion of macro ‘alternative_input’
  alternative_input(BASE_PREFETCH, "prefetchw %P1",
  ^~~~~~~~~~~~~~~~~
./include/linux/thread_info.h: In function ‘copy_overflow’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:93:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_NO_CUT_HERE | BUGFLAG_TAINT(taint));\
   ^~~~~~~~~~~~
./include/asm-generic/bug.h:124:3: note: in expansion of macro ‘__WARN_printf’
   __WARN_printf(TAINT_WARN, format);   \
   ^~~~~~~~~~~~~
./include/linux/thread_info.h:134:2: note: in expansion of macro ‘WARN’
  WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
  ^~~~
In file included from ./include/linux/bug.h:5:0,
                 from ./include/linux/thread_info.h:12,
                 from ./arch/x86/include/asm/preempt.h:7,
                 from ./include/linux/preempt.h:78,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/seqlock.h:36,
                 from ./include/linux/time.h:6,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/module.h:10,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/bug.h:35:22: error: expected identifier or ‘(’ before string constant
  asm_inline volatile("1:\t" ins "\n"    \
                      ^
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:93:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_NO_CUT_HERE | BUGFLAG_TAINT(taint));\
   ^~~~~~~~~~~~
./include/asm-generic/bug.h:124:3: note: in expansion of macro ‘__WARN_printf’
   __WARN_printf(TAINT_WARN, format);   \
   ^~~~~~~~~~~~~
./include/linux/thread_info.h:134:2: note: in expansion of macro ‘WARN’
  WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
  ^~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:93:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_NO_CUT_HERE | BUGFLAG_TAINT(taint));\
   ^~~~~~~~~~~~
./include/asm-generic/bug.h:124:3: note: in expansion of macro ‘__WARN_printf’
   __WARN_printf(TAINT_WARN, format);   \
   ^~~~~~~~~~~~~
./include/linux/thread_info.h:134:2: note: in expansion of macro ‘WARN’
  WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
  ^~~~
./include/linux/rcupdate.h: In function ‘rcu_head_after_call_rcu’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/rcupdate.h:893:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(func != (rcu_callback_t)~0L);
  ^~~~~~~~~~~~
In file included from ./include/linux/bug.h:5:0,
                 from ./include/linux/thread_info.h:12,
                 from ./arch/x86/include/asm/preempt.h:7,
                 from ./include/linux/preempt.h:78,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/seqlock.h:36,
                 from ./include/linux/time.h:6,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/module.h:10,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/bug.h:35:22: error: expected identifier or ‘(’ before string constant
  asm_inline volatile("1:\t" ins "\n"    \
                      ^
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/rcupdate.h:893:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(func != (rcu_callback_t)~0L);
  ^~~~~~~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/rcupdate.h:893:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(func != (rcu_callback_t)~0L);
  ^~~~~~~~~~~~
./include/linux/ktime.h: In function ‘ktime_divns’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:90:19: note: in expansion of macro ‘__WARN_FLAGS’
 #define __WARN()  __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN))
                   ^~~~~~~~~~~~
./include/asm-generic/bug.h:115:3: note: in expansion of macro ‘__WARN’
   __WARN();      \
   ^~~~~~
./include/linux/ktime.h:171:2: note: in expansion of macro ‘WARN_ON’
  WARN_ON(div < 0);
  ^~~~~~~
In file included from ./include/linux/bug.h:5:0,
                 from ./include/linux/thread_info.h:12,
                 from ./arch/x86/include/asm/preempt.h:7,
                 from ./include/linux/preempt.h:78,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/seqlock.h:36,
                 from ./include/linux/time.h:6,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/module.h:10,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/bug.h:35:22: error: expected identifier or ‘(’ before string constant
  asm_inline volatile("1:\t" ins "\n"    \
                      ^
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:90:19: note: in expansion of macro ‘__WARN_FLAGS’
 #define __WARN()  __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN))
                   ^~~~~~~~~~~~
./include/asm-generic/bug.h:115:3: note: in expansion of macro ‘__WARN’
   __WARN();      \
   ^~~~~~
./include/linux/ktime.h:171:2: note: in expansion of macro ‘WARN_ON’
  WARN_ON(div < 0);
  ^~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:90:19: note: in expansion of macro ‘__WARN_FLAGS’
 #define __WARN()  __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN))
                   ^~~~~~~~~~~~
./include/asm-generic/bug.h:115:3: note: in expansion of macro ‘__WARN’
   __WARN();      \
   ^~~~~~
./include/linux/ktime.h:171:2: note: in expansion of macro ‘WARN_ON’
  WARN_ON(div < 0);
  ^~~~~~~
./include/linux/srcu.h: In function ‘srcu_read_unlock’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/srcu.h:179:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(idx & ~0x1);
  ^~~~~~~~~~~~
In file included from ./include/linux/bug.h:5:0,
                 from ./include/linux/thread_info.h:12,
                 from ./arch/x86/include/asm/preempt.h:7,
                 from ./include/linux/preempt.h:78,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/seqlock.h:36,
                 from ./include/linux/time.h:6,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/module.h:10,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/bug.h:35:22: error: expected identifier or ‘(’ before string constant
  asm_inline volatile("1:\t" ins "\n"    \
                      ^
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/srcu.h:179:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(idx & ~0x1);
  ^~~~~~~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/srcu.h:179:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(idx & ~0x1);
  ^~~~~~~~~~~~
./include/linux/page-flags.h: In function ‘ClearPageCompound’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:73:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, 0);     \
  ^~~~~~~~~~
./include/asm-generic/bug.h:62:57: note: in expansion of macro ‘BUG’
 #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
                                                         ^~~
./include/linux/page-flags.h:565:2: note: in expansion of macro ‘BUG_ON’
  BUG_ON(!PageHead(page));
  ^~~~~~
In file included from ./include/linux/bug.h:5:0,
                 from ./include/linux/thread_info.h:12,
                 from ./arch/x86/include/asm/preempt.h:7,
                 from ./include/linux/preempt.h:78,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/seqlock.h:36,
                 from ./include/linux/time.h:6,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/module.h:10,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/bug.h:35:22: error: expected identifier or ‘(’ before string constant
  asm_inline volatile("1:\t" ins "\n"    \
                      ^
./arch/x86/include/asm/bug.h:73:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, 0);     \
  ^~~~~~~~~~
./include/asm-generic/bug.h:62:57: note: in expansion of macro ‘BUG’
 #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
                                                         ^~~
./include/linux/page-flags.h:565:2: note: in expansion of macro ‘BUG_ON’
  BUG_ON(!PageHead(page));
  ^~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:73:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, 0);     \
  ^~~~~~~~~~
./include/asm-generic/bug.h:62:57: note: in expansion of macro ‘BUG’
 #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
                                                         ^~~
./include/linux/page-flags.h:565:2: note: in expansion of macro ‘BUG_ON’
  BUG_ON(!PageHead(page));
  ^~~~~~
./include/asm-generic/fixmap.h: In function ‘virt_to_fix’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:73:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, 0);     \
  ^~~~~~~~~~
./include/asm-generic/bug.h:62:57: note: in expansion of macro ‘BUG’
 #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
                                                         ^~~
./include/asm-generic/fixmap.h:38:2: note: in expansion of macro ‘BUG_ON’
  BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
  ^~~~~~
In file included from ./include/linux/bug.h:5:0,
                 from ./include/linux/thread_info.h:12,
                 from ./arch/x86/include/asm/preempt.h:7,
                 from ./include/linux/preempt.h:78,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/seqlock.h:36,
                 from ./include/linux/time.h:6,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/module.h:10,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/bug.h:35:22: error: expected identifier or ‘(’ before string constant
  asm_inline volatile("1:\t" ins "\n"    \
                      ^
./arch/x86/include/asm/bug.h:73:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, 0);     \
  ^~~~~~~~~~
./include/asm-generic/bug.h:62:57: note: in expansion of macro ‘BUG’
 #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
                                                         ^~~
./include/asm-generic/fixmap.h:38:2: note: in expansion of macro ‘BUG_ON’
  BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
  ^~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:73:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, 0);     \
  ^~~~~~~~~~
./include/asm-generic/bug.h:62:57: note: in expansion of macro ‘BUG’
 #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
                                                         ^~~
./include/asm-generic/fixmap.h:38:2: note: in expansion of macro ‘BUG_ON’
  BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
  ^~~~~~
./arch/x86/include/asm/apic.h: In function ‘native_apic_mem_write’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:240:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
  ^~~~~~~~~~
./arch/x86/include/asm/apic.h:107:2: note: in expansion of macro ‘alternative_io’
  alternative_io("movl %0, %P1", "xchgl %0, %P1", X86_BUG_11AP,
  ^~~~~~~~~~~~~~
In file included from ./arch/x86/include/asm/barrier.h:5:0,
                 from ./include/linux/compiler.h:256,
                 from ./include/linux/export.h:44,
                 from ./include/linux/linkage.h:7,
                 from ./include/linux/kernel.h:8,
                 from ./include/linux/list.h:9,
                 from ./include/linux/module.h:9,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/alternative.h:108:2: error: expected identifier or ‘(’ before string constant
  "# ALT: oldnstr\n"      \
  ^
./arch/x86/include/asm/alternative.h:159:2: note: in expansion of macro ‘OLDINSTR’
  OLDINSTR(oldinstr, 1)      \
  ^~~~~~~~
./arch/x86/include/asm/alternative.h:240:23: note: in expansion of macro ‘ALTERNATIVE’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
                       ^~~~~~~~~~~
./arch/x86/include/asm/apic.h:107:2: note: in expansion of macro ‘alternative_io’
  alternative_io("movl %0, %P1", "xchgl %0, %P1", X86_BUG_11AP,
  ^~~~~~~~~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/alternative.h:240:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
  ^~~~~~~~~~
./arch/x86/include/asm/apic.h:107:2: note: in expansion of macro ‘alternative_io’
  alternative_io("movl %0, %P1", "xchgl %0, %P1", X86_BUG_11AP,
  ^~~~~~~~~~~~~~
In file included from ./arch/x86/include/asm/smp.h:13:0,
                 from ./arch/x86/include/asm/mmzone_64.h:11,
                 from ./arch/x86/include/asm/mmzone.h:5,
                 from ./include/linux/mmzone.h:972,
                 from ./include/linux/gfp.h:6,
                 from ./include/linux/umh.h:4,
                 from ./include/linux/kmod.h:9,
                 from ./include/linux/module.h:13,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/apic.h:105:16: warning: unused variable ‘addr’ [-Wunused-variable]
  volatile u32 *addr = (volatile u32 *)(APIC_BASE + reg);
                ^~~~
In file included from <command-line>:0:0:
./include/linux/xarray.h: In function ‘xa_mk_value’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:90:19: note: in expansion of macro ‘__WARN_FLAGS’
 #define __WARN()  __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN))
                   ^~~~~~~~~~~~
./include/asm-generic/bug.h:115:3: note: in expansion of macro ‘__WARN’
   __WARN();      \
   ^~~~~~
./include/linux/xarray.h:54:2: note: in expansion of macro ‘WARN_ON’
  WARN_ON((long)v < 0);
  ^~~~~~~
In file included from ./include/linux/bug.h:5:0,
                 from ./include/linux/thread_info.h:12,
                 from ./arch/x86/include/asm/preempt.h:7,
                 from ./include/linux/preempt.h:78,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/seqlock.h:36,
                 from ./include/linux/time.h:6,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/module.h:10,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/bug.h:35:22: error: expected identifier or ‘(’ before string constant
  asm_inline volatile("1:\t" ins "\n"    \
                      ^
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:90:19: note: in expansion of macro ‘__WARN_FLAGS’
 #define __WARN()  __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN))
                   ^~~~~~~~~~~~
./include/asm-generic/bug.h:115:3: note: in expansion of macro ‘__WARN’
   __WARN();      \
   ^~~~~~
./include/linux/xarray.h:54:2: note: in expansion of macro ‘WARN_ON’
  WARN_ON((long)v < 0);
  ^~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:90:19: note: in expansion of macro ‘__WARN_FLAGS’
 #define __WARN()  __WARN_FLAGS(BUGFLAG_TAINT(TAINT_WARN))
                   ^~~~~~~~~~~~
./include/asm-generic/bug.h:115:3: note: in expansion of macro ‘__WARN’
   __WARN();      \
   ^~~~~~
./include/linux/xarray.h:54:2: note: in expansion of macro ‘WARN_ON’
  WARN_ON((long)v < 0);
  ^~~~~~~
./include/linux/kernfs.h: In function ‘kernfs_enable_ns’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/kernfs.h:304:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(kernfs_type(kn) != KERNFS_DIR);
  ^~~~~~~~~~~~
In file included from ./include/linux/bug.h:5:0,
                 from ./include/linux/thread_info.h:12,
                 from ./arch/x86/include/asm/preempt.h:7,
                 from ./include/linux/preempt.h:78,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/seqlock.h:36,
                 from ./include/linux/time.h:6,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/module.h:10,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/bug.h:35:22: error: expected identifier or ‘(’ before string constant
  asm_inline volatile("1:\t" ins "\n"    \
                      ^
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/kernfs.h:304:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(kernfs_type(kn) != KERNFS_DIR);
  ^~~~~~~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/kernfs.h:304:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(kernfs_type(kn) != KERNFS_DIR);
  ^~~~~~~~~~~~
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/kernfs.h:305:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(!RB_EMPTY_ROOT(&kn->dir.children));
  ^~~~~~~~~~~~
In file included from ./include/linux/bug.h:5:0,
                 from ./include/linux/thread_info.h:12,
                 from ./arch/x86/include/asm/preempt.h:7,
                 from ./include/linux/preempt.h:78,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/seqlock.h:36,
                 from ./include/linux/time.h:6,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/module.h:10,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/bug.h:35:22: error: expected identifier or ‘(’ before string constant
  asm_inline volatile("1:\t" ins "\n"    \
                      ^
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/kernfs.h:305:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(!RB_EMPTY_ROOT(&kn->dir.children));
  ^~~~~~~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/kernfs.h:305:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(!RB_EMPTY_ROOT(&kn->dir.children));
  ^~~~~~~~~~~~
./include/linux/kobject.h: In function ‘kobject_has_children’:
././include/linux/compiler_types.h:210:24: error: expected ‘(’ before ‘__inline’
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/kobject.h:134:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(kref_read(&kobj->kref) == 0);
  ^~~~~~~~~~~~
In file included from ./include/linux/bug.h:5:0,
                 from ./include/linux/thread_info.h:12,
                 from ./arch/x86/include/asm/preempt.h:7,
                 from ./include/linux/preempt.h:78,
                 from ./include/linux/spinlock.h:51,
                 from ./include/linux/seqlock.h:36,
                 from ./include/linux/time.h:6,
                 from ./include/linux/stat.h:19,
                 from ./include/linux/module.h:10,
                 from /tmp/builderr//conftest.c:1:
./arch/x86/include/asm/bug.h:35:22: error: expected identifier or ‘(’ before string constant
  asm_inline volatile("1:\t" ins "\n"    \
                      ^
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/kobject.h:134:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(kref_read(&kobj->kref) == 0);
  ^~~~~~~~~~~~
In file included from <command-line>:0:0:
././include/linux/compiler_types.h:210:24: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
 #define asm_inline asm __inline
                        ^
./arch/x86/include/asm/bug.h:35:2: note: in expansion of macro ‘asm_inline’
  asm_inline volatile("1:\t" ins "\n"    \
  ^~~~~~~~~~
./arch/x86/include/asm/bug.h:79:2: note: in expansion of macro ‘_BUG_FLAGS’
  _BUG_FLAGS(ASM_UD2, BUGFLAG_WARNING|(flags));  \
  ^~~~~~~~~~
./include/asm-generic/bug.h:98:3: note: in expansion of macro ‘__WARN_FLAGS’
   __WARN_FLAGS(BUGFLAG_ONCE |   \
   ^~~~~~~~~~~~
./include/linux/kobject.h:134:2: note: in expansion of macro ‘WARN_ON_ONCE’
  WARN_ON_ONCE(kref_read(&kobj->kref) == 0);
  ^~~~~~~~~~~~
scripts/Makefile.build:265: recipe for target '/tmp/builderr//conftest.o' failed
make[1]: *** [/tmp/builderr//conftest.o] Error 1
Makefile:1649: recipe for target '/tmp/builderr/' failed
make: *** [/tmp/builderr/] Error 2
make: Leaving directory '/usr/src/linux-headers-5.4.0-050400rc4-generic'