[Bug driver/78206] bootstrap failure under Apple sandbox that blacklists reads in /usr/local

["howarth.at.gcc at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78206

--- Comment #1 from Jack Howarth <howarth.at.gcc at gmail dot com> ---
Executing the failing configure test with the stage1 xgcc compiler appears as
follows...

# sandbox-exec -f
/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/x86_64-apple-darwin15.6.0/libgcc/fink.sb
/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/./gcc/xgcc
-B/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/./gcc/
-B/sw/lib/gcc5/x86_64-apple-darwin15.6.0/bin/
-B/sw/lib/gcc5/x86_64q-darwin15.6.0/lib/ -isystem
/sw/lib/gcc5/x86_64-apple-darwin15.6.0/include -isystem
/sw/lib/gcc5/x86_64-apple-darwin15.6.0/sys-include -c -g -O2 conftest.c -v
--save-temps
Reading specs from /sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/./gcc/specs
COLLECT_GCC=/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/./gcc/xgcc
Target: x86_64-apple-darwin15.6.0
Configured with: ../gcc-5.4.0/configure --prefix=/sw --prefix=/sw/lib/gcc5
--mandir=/sw/share/man --infodir=/sw/lib/gcc5/info
--enable-languages=c,c++,fortran,lto,objc,obj-c++,java --with-gmp=/sw
--with-libiconv-prefix=/sw --with-isl=/sw --with-mpc=/sw --with-system-zlib
--with-local-prefix=/usr/local --program-suffix=-fsf-5
Thread model: posix
gcc version 5.4.0 (GCC) 
COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.11.6' '-B'
'/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/./gcc/' '-B'
'/sw/lib/gcc5/x86_64-apple-darwin15.6.0/bin/' '-B'
'/sw/lib/gcc5/x86_64q-darwin15.6.0/lib/' '-isystem'
'/sw/lib/gcc5/x86_64-apple-darwin15.6.0/include' '-isystem'
'/sw/lib/gcc5/x86_64-apple-darwin15.6.0/sys-include' '-c' '-g' '-O2' '-v'
'-save-temps' '-mtune=core2'
 /sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/./gcc/cc1 -E -quiet -v -iprefix
/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/gcc/../lib/gcc/x86_64-apple-darwin15.6.0/5.4.0/
-isystem /sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/./gcc/include -isystem
/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/./gcc/include-fixed -D__DYNAMIC__
-isystem /sw/lib/gcc5/x86_64-apple-darwin15.6.0/include -isystem
/sw/lib/gcc5/x86_64-apple-darwin15.6.0/sys-include conftest.c -fPIC
-feliminate-unused-debug-symbols -mmacosx-version-min=10.11.6 -mtune=core2 -g
-fworking-directory -O2 -fpch-preprocess -o conftest.i
ignoring nonexistent directory "/sw/lib/gcc5/x86_64-apple-darwin15.6.0/include"
ignoring nonexistent directory
"/sw/lib/gcc5/x86_64-apple-darwin15.6.0/sys-include"
ignoring nonexistent directory
"/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/gcc/../lib/gcc/x86_64-apple-darwin15.6.0/5.4.0/include"
ignoring nonexistent directory
"/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/gcc/../lib/gcc/x86_64-apple-darwin15.6.0/5.4.0/include-fixed"
ignoring nonexistent directory
"/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/gcc/../lib/gcc/x86_64-apple-darwin15.6.0/5.4.0/../../../../x86_64-apple-darwin15.6.0/include"
ignoring nonexistent directory
"/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/gcc/../lib/gcc/../../lib/gcc/x86_64-apple-darwin15.6.0/5.4.0/include"
cc1: error: /usr/local/include: Operation not permitted
ignoring nonexistent directory
"/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/gcc/../lib/gcc/../../include"
ignoring nonexistent directory
"/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/gcc/../lib/gcc/../../lib/gcc/x86_64-apple-darwin15.6.0/5.4.0/include-fixed"
ignoring nonexistent directory
"/sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/gcc/../lib/gcc/../../lib/gcc/x86_64-apple-darwin15.6.0/5.4.0/../../../../x86_64-apple-darwin15.6.0/include"
#include "..." search starts here:
#include <...> search starts here:
 /sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/./gcc/include
 /sw/src/fink.build/gcc5-5.4.0-3/darwin_objdir/./gcc/include-fixed
 /usr/include
 /System/Library/Frameworks
 /Library/Frameworks
End of search list.