gss @1.0.4: config.h:1001:37: an attribute list cannot appear here

[ShadSterling (Shad Sterling)]

2018 Intel macbook just upgraded to Sequoia, sudo port migrate largely failed on #70750 and then #70849, after addressing those sudo port restore --last also largely fails due to this error building gss:

:info:build libtool: compile:  /usr/bin/clang -DHAVE_CONFIG_H -I. -I../.. -I/opt/local/include -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk -Wno-cast-qual -Wno-conversion -Wno-float-equal -Wno-sign-compare -Wno-undef -Wno-unused-function -Wno-unused-parameter -Wno-float-conversion -Wimplicit-fallthrough -Wno-pedantic -Wno-sign-conversion -Wno-type-limits -pipe -Os -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk -arch x86_64 -MT libgnu_la-fd-hook.lo -MD -MP -MF .deps/libgnu_la-fd-hook.Tpo -c fd-hook.c -o libgnu_la-fd-hook.o >/dev/null 2>&1
:info:build In file included from ialloc.c:21:
:info:build ./ialloc.h:39:1: error: an attribute list cannot appear here
:info:build    39 | IALLOC_INLINE void * _GL_ATTRIBUTE_COLD
:info:build       | ^~~~~~~~~~~~~
:info:build ialloc.c:20:23: note: expanded from macro 'IALLOC_INLINE'
:info:build    20 | #define IALLOC_INLINE _GL_EXTERN_INLINE
:info:build       |                       ^~~~~~~~~~~~~~~~~
:info:build ../../config.h:1193:35: note: expanded from macro '_GL_EXTERN_INLINE'
:info:build  1193 | # define _GL_EXTERN_INLINE static _GL_UNUSED
:info:build       |                                   ^~~~~~~~~~
:info:build ../../config.h:1006:20libtool: compile:  /usr/bin/clang -DHAVE_CONFIG_H -I. -I../.. -I/opt/local/include -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk -Wno-cast-qual -Wno-conversion -Wno-float-equal -Wno-sign-compare -Wno-undef -Wno-unused-function -Wno-unused-parameter -Wno-float-conversion -Wimplicit-fallthrough -Wno-pedantic -Wno-sign-conversion -Wno-type-limits -pipe -Os -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk -arch x86_64 -MT libgnu_la-getprogname.lo -MD -MP -MF .deps/libgnu_la-getprogname.Tpo -c getprogname.c -o libgnu_la-getprogname.o >/dev/null 2>&1
:info:build : note: expanded from macro '_GL_UNUSED'
:info:build  1006 | #define _GL_UNUSED _GL_ATTRIBUTE_MAYBE_UNUSED
:info:build       |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~
:info:build ../../config.h:1001:37: note: expanded from macro '_GL_ATTRIBUTE_MAYBE_UNUSED'
:info:build  1001 | # define _GL_ATTRIBUTE_MAYBE_UNUSED [[__maybe_unused__]]
:info:build       |                                     ^~~~~~~~~~~~~~~~~~~~