harfbuzz - strange compiler issues with gcc on 10.5

[Riccardo Mottola]

Hi,

as a dependency, harfbuzz is being installed on my 10.5 64bit system.

The default picked up compiler is gcc6 and I get the following errors. I 
ask, because I have seen this errors in other builds and even some of my 
own code, it is in the system headers.

/opt/local/bin/g++-mp-6 -DHAVE_CONFIG_H -I. -I..  -pthread 
-I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include 
-I/opt/local/include/freetype2 -I/opt/local/include/libpng16 
-I/opt/local/include  -fno-rtti -pipe -Os 
-DHB_NO_PRAGMA_GCC_DIAGNOSTIC_ERROR -D_GLIBCXX_USE_CXX11_ABI=0 -m64 
-fno-exceptions -fno-threadsafe-statics -fvisibility-inlines-hidden -MT 
test_ot_name-test-ot-name.o -MD -MP -MF 
.deps/test_ot_name-test-ot-name.Tpo -c -o test_ot_name-test-ot-name.o 
`test -f 'test-ot-name.cc' || echo './'`test-ot-name.cc
In file included from 
/System/Library/Frameworks/Security.framework/Headers/Security.h:57:0,
                  from 
/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Headers/LSSharedFileList.h:32,
                  from 
/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Headers/LaunchServices.h:37,
                  from 
/System/Library/Frameworks/CoreServices.framework/Headers/CoreServices.h:41,
                  from 
/System/Library/Frameworks/ApplicationServices.framework/Headers/ApplicationServices.h:20,
                  from hb-coretext.h:37,
                  from hb-coretext.cc:35:
/System/Library/Frameworks/Security.framework/Headers/SecKeychain.h:102:46: 
error: shift expression '(1853123693 << 8)' overflows [-fpermissive]
      kSecAuthenticationTypeNTLM             = AUTH_TYPE_FIX_ ('ntlm'),
                                               ^
/System/Library/Frameworks/Security.framework/Headers/SecKeychain.h:102:46: 
error: enumerator value for 'kSecAuthenticationTypeNTLM' is not an 
integer constant
      kSecAuthenticationTypeNTLM             = AUTH_TYPE_FIX_ ('ntlm'),
                                               ^
/System/Library/Frameworks/Security.framework/Headers/SecKeychain.h:103:46: 
error: shift expression '(1836281441 << 8)' overflows [-fpermissive]
      kSecAuthenticationTypeMSN              = AUTH_TYPE_FIX_ ('msna'),
                                               ^
/System/Library/Frameworks/Security.framework/Headers/SecKeychain.h:103:46: 
error: enumerator value for 'kSecAuthenticationTypeMSN' is not an 
integer constant
      kSecAuthenticationTypeMSN              = AUTH_TYPE_FIX_ ('msna'),
                                               ^
/System/Library/Frameworks/Security.framework/Headers/SecKeychain.h:104:46: 
error: shift expression '(1685086561 << 8)' overflows [-fpermissive]
      kSecAuthenticationTypeDPA              = AUTH_TYPE_FIX_ ('dpaa'),

<... and many more very similar ...>


So probably either something can be tweaked when using gcc6 or it is too 
"new" for the system headers?


I tried building with clang-3.7 but it doesn't work, because the port 
wants then to issue -stdlib=macports-libstdc++, which clang 3.7 does not 
understand. Clang-3.9 is no more and I am unable to get clang 5.0 on 
10.5, but that is a different issue, I suppose and will report it 
separately.


Riccardo