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[Bug sanitizer/78267] New: [7 Regression] libsanitizer breaks bootstrap on x86_64-apple-darwin16 at r241977


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78267

            Bug ID: 78267
           Summary: [7 Regression] libsanitizer breaks bootstrap on
                    x86_64-apple-darwin16 at r241977
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: sanitizer
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dominiq at lps dot ens.fr
                CC: chefmax at gcc dot gnu.org, dodji at gcc dot gnu.org,
                    dvyukov at gcc dot gnu.org, howarth.at.gcc at gmail dot com,
                    iains at gcc dot gnu.org, jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-apple-darwin16
            Target: x86_64-apple-darwin16
             Build: x86_64-apple-darwin16

Bootstrap on x86_64-apple-darwin16 is broken at r241977 when building
libsanitizer:

libtool: compile:  /opt/gcc/build_w/./gcc/xgcc -shared-libgcc
-B/opt/gcc/build_w/./gcc -nostdinc++
-L/opt/gcc/build_w/x86_64-apple-darwin16.1.0/libstdc++-v3/src
-L/opt/gcc/build_w/x86_64-apple-darwin16.1.0/libstdc++-v3/src/.libs
-L/opt/gcc/build_w/x86_64-apple-darwin16.1.0/libstdc++-v3/libsupc++/.libs
-B/opt/gcc/gcc7w/x86_64-apple-darwin16.1.0/bin/
-B/opt/gcc/gcc7w/x86_64-apple-darwin16.1.0/lib/ -isystem
/opt/gcc/gcc7w/x86_64-apple-darwin16.1.0/include -isystem
/opt/gcc/gcc7w/x86_64-apple-darwin16.1.0/sys-include -D_GNU_SOURCE -D_DEBUG
-D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
-DHAVE_RPC_XDR_H=0 -DHAVE_TIRPC_RPC_XDR_H=0 -I.
-I../../../../work/libsanitizer/sanitizer_common -I.. -I
../../../../work/libsanitizer/include -isystem
../../../../work/libsanitizer/include/system -Wall -W -Wno-unused-parameter
-Wwrite-strings -pedantic -Wno-long-long -fPIC -fno-builtin -fno-exceptions
-fno-rtti -fomit-frame-pointer -funwind-tables -fvisibility=hidden
-Wno-variadic-macros -I../../libstdc++-v3/include
-I../../libstdc++-v3/include/x86_64-apple-darwin16.1.0
-I../../../../work/libsanitizer/../libstdc++-v3/libsupc++ -std=gnu++11 -g -O2
-MT sanitizer_mac.lo -MD -MP -MF .deps/sanitizer_mac.Tpo -c
../../../../work/libsanitizer/sanitizer_common/sanitizer_mac.cc  -fno-common
-DPIC -o .libs/sanitizer_mac.o
In file included from
../../../../work/libsanitizer/sanitizer_common/sanitizer_mac.cc:39:0:
/usr/include/os/trace.h:204:15: error: expected unqualified-id before '^' token
 typedef void (^os_trace_payload_t)(xpc_object_t xdict);
               ^
/usr/include/os/trace.h:204:15: error: expected ')' before '^' token
In file included from /usr/include/Availability.h:180:0,
                 from /usr/include/stdio.h:65,
                 from
../../../../work/libsanitizer/sanitizer_common/sanitizer_mac.cc:21:
/usr/include/os/trace.h:302:1: error: 'introduced' was not declared in this
scope
 __API_AVAILABLE(macosx(10.12), ios(10.0), watchos(3.0), tvos(10.0))
 ^
/usr/include/os/trace.h:302:1: error: 'introduced' was not declared in this
scope
 __API_AVAILABLE(macosx(10.12), ios(10.0), watchos(3.0), tvos(10.0))
 ^
/usr/include/os/trace.h:302:1: error: 'introduced' was not declared in this
scope
 __API_AVAILABLE(macosx(10.12), ios(10.0), watchos(3.0), tvos(10.0))
 ^
/usr/include/os/trace.h:302:1: error: 'introduced' was not declared in this
scope
 __API_AVAILABLE(macosx(10.12), ios(10.0), watchos(3.0), tvos(10.0))
 ^
/usr/include/os/trace.h:328:1: error: 'introduced' was not declared in this
scope
 __API_AVAILABLE(macosx(10.10), ios(8.0), watchos(2.0), tvos(8.0))
 ^
/usr/include/os/trace.h:328:1: error: 'introduced' was not declared in this
scope
 __API_AVAILABLE(macosx(10.10), ios(8.0), watchos(2.0), tvos(8.0))
 ^
/usr/include/os/trace.h:328:1: error: 'introduced' was not declared in this
scope
 __API_AVAILABLE(macosx(10.10), ios(8.0), watchos(2.0), tvos(8.0))
 ^
+ hundreds of similar errors.

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