https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121709
Bug ID: 121709
Summary: [16 regression] Failed bootstrap in m2
(m2/gm2-lang.cc:547:39: error: ‘PREFIX_INCLUDE_DIR’
was not declared in this scope)
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: build
Severity: normal
Priority: P3
Component: modula2
Assignee: gaius at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
```
/var/tmp/portage/sys-devel/gcc-16.0.9999/work/build/./prev-gcc/xg++
-B/var/tmp/portage/sys-devel/gcc-16.0.9999/work/build/./prev-gcc/
-B/usr/x86_64-pc-linux-gnu/bin/ -nostdinc++
-B/var/tmp/portage/sys-devel/gcc-16.0.9999/work/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-B/var/tmp/portage/sys-devel/gcc-16.0.9999/work/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/
libsupc++/.libs
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/include
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/libstdc++-v3/libsupc++
-L/var/tmp/portage/sys-devel/gcc-16.0.9999/work/
build/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-L/var/tmp/portage/sys-devel/gcc-16.0.9999/work/build/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
-fPIE -MT m2/gm2-lang.o -MMD -MP -MF m2/.deps/gm2-lang.TPo -c -g
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/m2 -Im2
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/m2/g
m2-gcc -Im2/gm2-gcc -DDEF_GENTOO_SCP -DDEF_GENTOO_ZNOW -DEXTRA_OPTIONS
-DGENTOO_FORTIFY_SOURCE_LEVEL=3 -DDEF_GENTOO_GLIBCXX_ASSERTIONS
-DIN_GCC_FRONTEND -m64 -O3 -march=native -fno-semantic-interposition -g1 -pipe
-fcf-protection=none -fdiagnostics-color=always -fdiagnostics-urls=never
-Wa,-O2 -Wa,-mtune=znver2 --param=ggc-min-expand=120 -Wstrict-aliasing
-Wfree-nonheap-object -Wuninitialized -Wmaybe-uninitialized -Wreturn-type
-Wbuiltin-declaration-mismatch -Wtautological-compare -Werror=lto-type-mismatch
-Werror=strict-aliasing -Werror=odr -Wstrin
gop-overread -Wstringop-overflow -Wstringop-truncation -Wformat-overflow
-Wformat-truncation -Wrestrict -ggdb3 -ggdb3 -Wno-error=lto-type-mismatch
-Wno-error=odr -fno-checking -flto=jobserver -frandom-seed=1 -fprofile-generate
-flto=jobserver -frandom-seed=1 -DIN_GCC -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-error=narrowing -Wwrite-strings
-Wcast-qual -DHAVE_CONFIG_H -fPIE \
-DLIBSUBDIR=\"/usr/lib/gcc/x86_64-pc-linux-gnu/16\" \
-I. -Im2
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/m2
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/../include
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/../libcpp/include
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/../libcody
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/../libdecnumber
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/../libdecnumber/bid
-I../libdecnumber
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/../libbacktrace
-D_GENTOO_TIME64_FORCE=0 -I. -Im2
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/wo
rk/gcc-16.0.9999/gcc
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/m2
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/../include
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/../libcpp/include
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/../libcody
-I/var/tmp/portage/sys-devel/gcc-16.0.9999
/work/gcc-16.0.9999/gcc/../libdecnumber
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/../libdecnumber/bid
-I../libdecnumber
-I/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/../libbacktrace
/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/m2/gm2-lang.cc
-o m2/gm2-lang.o
/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/m2/gm2-lang.cc:
In function ‘void add_default_include_paths(const char*)’:
/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/m2/gm2-lang.cc:547:39:
error: ‘PREFIX_INCLUDE_DIR’ was not declared in this scope
547 | foreach_lib_gen_import_path (flibs, PREFIX_INCLUDE_DIR);
| ^~~~~~~~~~~~~~~~~~
/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/m2/gm2-lang.cc:
At global scope:
/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/m2/gm2-lang.cc:573:1:
warning: ‘void m2_pathname_root(const char*)’ defined but not used
[-Wunused-function]
573 | m2_pathname_root (const char *libroot)
| ^~~~~~~~~~~~~~~~
make[3]: ***
[/var/tmp/portage/sys-devel/gcc-16.0.9999/work/gcc-16.0.9999/gcc/m2/Make-lang.in:641:
m2/gm2-lang.o] Error 1
```
