Hi,
This is:
Darwin Mac 25.4.0 Darwin Kernel Version 25.4.0: Thu Mar 19 19:33:25
PDT 2026; root:xnu-12377.101.15~1/RELEASE_ARM64_T6041 arm64
I just checked out the source tree, and did a
% ./build.sh -U -u -m vax build
But; it fails later in build-rtl;
# compile backend/build-rtl.lo
c++ -O -std=gnu++11 -I/Users/ragge/old/nbsdvax/external/gpl3/gcc/
usr.bin/backend/obj -I/Users/ragge/old/nbsdvax/external/gpl3/gcc/
usr.bin/backend/.. -I/Users/ragge/old/nbsdvax/external/gpl3/gcc/
usr.bin/host-libiberty/obj/libiberty -I. -I/Users/ragge/old/nbsdvax/
external/gpl3/gcc/usr.bin/backend/../gcc/arch/vax -DIN_GCC -
DHAVE_CONFIG_H -I/Users/ragge/old/nbsdvax/external/gpl3/gcc/dist/gcc -
I/Users/ragge/old/nbsdvax/external/gpl3/gcc/dist/gcc/. -I/Users/ragge/
old/nbsdvax/external/gpl3/gcc/dist/gcc/../include -I/Users/ragge/old/
nbsdvax/external/gpl3/gcc/dist/gcc/../libcpp/include -I/Users/ragge/
old/nbsdvax/external/gpl3/gcc/dist/gcc/../libcody -I/Users/ragge/old/
nbsdvax/external/gpl3/gcc/dist/gcc/../libdecnumber -I/Users/ragge/old/
nbsdvax/external/gpl3/gcc/dist/gcc/../libdecnumber/dpd -I/Users/ragge/
old/nbsdvax/external/gpl3/gcc/dist/gcc/../libbacktrace -
DGENERATOR_FILE -c -o build-rtl.lo.o build-rtl.c
clang++: warning: treating 'c' input as 'c++' when in C++ mode, this
behavior is deprecated [-Wdeprecated]
In file included from build-rtl.c:29:
In file included from /Users/ragge/old/nbsdvax/external/gpl3/gcc/dist/
gcc/coretypes.h:472:
/Users/ragge/old/nbsdvax/external/gpl3/gcc/dist/gcc/wide-
int.h:1198:11: warning: first argument in call to 'memcpy'
is a pointer to non-trivially copyable type 'wide_int_storage'
[-Wnontrivial-memcall]
1198 | memcpy (this, &x, sizeof (wide_int_storage));
| ^
/Users/ragge/old/nbsdvax/external/gpl3/gcc/dist/gcc/wide-
int.h:1198:11: note: explicitly cast the pointer to
silence this warning
1198 | memcpy (this, &x, sizeof (wide_int_storage));
| ^
| (void*)
/Users/ragge/old/nbsdvax/external/gpl3/gcc/dist/gcc/wide-
int.h:1221:11: warning: first argument in call to 'memcpy'
is a pointer to non-trivially copyable type 'wide_int_storage'
[-Wnontrivial-memcall]
1221 | memcpy (this, &x, sizeof (wide_int_storage));
| ^
/Users/ragge/old/nbsdvax/external/gpl3/gcc/dist/gcc/wide-
int.h:1221:11: note: explicitly cast the pointer to
silence this warning
1221 | memcpy (this, &x, sizeof (wide_int_storage));
| ^
| (void*)
In file included from build-rtl.c:31:
In file included from /Users/ragge/old/nbsdvax/external/gpl3/gcc/dist/
gcc/rtl.h:31:
In file included from /Users/ragge/old/nbsdvax/external/gpl3/gcc/dist/
gcc/hash-table.h:636:
/Users/ragge/old/nbsdvax/external/gpl3/gcc/dist/gcc/mem-stats.h:99:5:
warning: 'sprintf' is deprecated: This
function is provided for compatibility reasons only. Due to
security concerns inherent in the design of sprintf(3), it is highly
recommended that you use snprintf(3) instead. [-Wdeprecated-
declarations]
99 | sprintf (s, "%s:%i (%s)", get_trimmed_filename (),
| ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/
Developer/SDKs/MacOSX.sdk/usr/include/_stdio.h:278:1: note:
'sprintf' has been explicitly marked deprecated here
278 | __deprecated_msg("This function is provided for compatibility
reasons only. Due to security concerns inherent in the design of ...
| ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/
Developer/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h:227:48: note:
expanded from macro '__deprecated_msg'
227 | #define __deprecated_msg(_msg)
__attribute__((__deprecated__(_msg)))
| ^
build-rtl.c:298:10: error: use of undeclared identifier 'CC0'
298 | case CC0:
| ^~~
build-rtl.c:391:10: error: use of undeclared identifier 'CC0'
391 | case CC0:
| ^~~
.... and a bunch of other errors thereafter.
So, as not knowing anything about how gcc works, can anyone give a
hint about how to find what may be erroneous? :-)
-- Ragge