https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116859
Bug ID: 116859
Summary: Bootstrap broken on FreeBSD due to
_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: kargls at comcast dot net
Target Milestone: ---
It seems someone committed a change after 20240909 that now breaks bootstrap on
FreeBSD. I could complete a normal bootstrap on the above date. I now see
thousands of warnings about !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC not being
portable. This unfortunately ends up with an error thusly,
/usr/home/sgk/gcc/objx/./prev-gcc/xg++ -B/usr/home/sgk/gcc/objx/./prev-gcc/
-B/usr/home/sgk/work/x/x86_64-unknown-freebsd15.0/bin/ -nostdinc++
-B/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/src/.libs
-B/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/libsupc++/.libs
-I/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/include/x86_64-unknown-freebsd15.0
-I/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/include
-I/usr/home/sgk/gcc/gccx/libstdc++-v3/libsupc++
-L/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/src/.libs
-L/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/libsupc++/.libs
-I../../gccx/libcpp -I. -I../../gccx/libcpp/../include
-I../../gccx/libcpp/include -g -O2 -fno-checking -gtoggle -W -Wall
-Wno-narrowing -Wwrite-strings -Wmissing-format-attribute -pedantic
-Wno-long-long -Werror -fno-exceptions -fno-rtti -I../../gccx/libcpp -I.
-I../../gccx/libcpp/../include -I../../gccx/libcpp/include -c -o charset.o
-MT charset.o -MMD -MP -MF .deps/charset.Tpo ../../gccx/libcpp/charset.cc
In file included from
/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/include/stdlib.h:36,
from ../../gccx/libcpp/system.h:218,
from ../../gccx/libcpp/charset.cc:21:
/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/include/cstdlib:209:6:
error: this use of "defined" may not be portable [-Werror=expansion-to-defined]
209 | #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/include/cstdlib:219:6:
error: this use of "defined" may not be portable [-Werror=expansion-to-defined]
219 | #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/include/cstdlib:229:41:
error: this use of "defined" may not be portable [-Werror=expansion-to-defined]
229 | #if _GLIBCXX_USE_C99_LONG_LONG_CHECK ||
_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
|
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/include/cstdlib:236:6:
error: this use of "defined" may not be portable [-Werror=expansion-to-defined]
236 | #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/include/cstdlib:249:6:
error: this use of "defined" may not be portable [-Werror=expansion-to-defined]
249 | #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/home/sgk/gcc/objx/prev-x86_64-unknown-freebsd15.0/libstdc++-v3/include/cstdlib:253:6:
error: this use of "defined" may not be portable [-Werror=expansion-to-defined]
253 | #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1plus: all warnings being treated as errors
