[Pkg-fonts-devel] Bug#1098111: woff2: ftbfs with GCC-15

[Matthias Klose]

Package: src:woff2
Version: 1.0.2-2
Severity: important
Tags: sid forky
User: debian-gcc at lists.debian.org
Usertags: ftbfs-gcc-15

[This bug is NOT targeted to the upcoming trixie release]

Please keep this issue open in the bug tracker for the package it
was filed for.  If a fix in another package is required, please
file a bug for the other package (or clone), and add a block in this
package. Please keep the issue open until the package can be built in
a follow-up test rebuild.

The package fails to build in a test rebuild on at least amd64 with
gcc-15/g++-15, but succeeds to build with gcc-14/g++-14. The
severity of this report will be raised before the forky release.

The full build log can be found at:
http://qa-logs.debian.net/2025/02/16/amd64exp/woff2_1.0.2-2_unstable_gccexp.log.gz
The last lines of the build log are at the end of this report.

To build with GCC 15, either set CC=gcc-15 CXX=g++-15 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t=experimental install g++ 

GCC 15 now defaults to the C23/C++23 standards, exposing many FTBFS.
Other Common build failures are new warnings resulting in build failures
with -Werror turned on, or new/dropped symbols in Debian symbols files.
For other C/C++ related build failures see the porting guide at
http://gcc.gnu.org/gcc-15/porting_to.html

[...]
[ 26%] Building CXX object CMakeFiles/woff2dec.dir/src/woff2_dec.cc.o
[ 26%] Building CXX object CMakeFiles/woff2dec.dir/src/woff2_out.cc.o
/usr/bin/c++ -DFONT_COMPRESSION_BIN -D__STDC_FORMAT_MACROS -Dwoff2dec_EXPORTS -I/build/reproducible-path/woff2-1.0.2/src -I/build/reproducible-path/woff2-1.0.2/include -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -std=gnu++11 -fPIC   -no-canonical-prefixes -MD -MT CMakeFiles/woff2dec.dir/src/woff2_dec.cc.o -MF CMakeFiles/woff2dec.dir/src/woff2_dec.cc.o.d -o CMakeFiles/woff2dec.dir/src/woff2_dec.cc.o -c /build/reproducible-path/woff2-1.0.2/src/woff2_dec.cc
/usr/bin/c++ -DFONT_COMPRESSION_BIN -D__STDC_FORMAT_MACROS -Dwoff2dec_EXPORTS -I/build/reproducible-path/woff2-1.0.2/src -I/build/reproducible-path/woff2-1.0.2/include -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -std=gnu++11 -fPIC   -no-canonical-prefixes -MD -MT CMakeFiles/woff2dec.dir/src/woff2_out.cc.o -MF CMakeFiles/woff2dec.dir/src/woff2_out.cc.o.d -o CMakeFiles/woff2dec.dir/src/woff2_out.cc.o -c /build/reproducible-path/woff2-1.0.2/src/woff2_out.cc
[ 34%] Building CXX object CMakeFiles/woff2enc.dir/src/font.cc.o
[ 34%] Building CXX object CMakeFiles/woff2enc.dir/src/glyph.cc.o
[ 39%] Building CXX object CMakeFiles/woff2enc.dir/src/woff2_enc.cc.o
[ 43%] Building CXX object CMakeFiles/woff2enc.dir/src/transform.cc.o
[ 47%] Building CXX object CMakeFiles/woff2enc.dir/src/normalize.cc.o
[ 52%] Building CXX object CMakeFiles/woff2_info.dir/src/woff2_info.cc.o
/usr/bin/c++ -DFONT_COMPRESSION_BIN -D__STDC_FORMAT_MACROS -I/build/reproducible-path/woff2-1.0.2/src -I/build/reproducible-path/woff2-1.0.2/include -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -std=gnu++11   -no-canonical-prefixes -MD -MT CMakeFiles/woff2_info.dir/src/woff2_info.cc.o -MF CMakeFiles/woff2_info.dir/src/woff2_info.cc.o.d -o CMakeFiles/woff2_info.dir/src/woff2_info.cc.o -c /build/reproducible-path/woff2-1.0.2/src/woff2_info.cc
/usr/bin/c++ -DFONT_COMPRESSION_BIN -D__STDC_FORMAT_MACROS -Dwoff2enc_EXPORTS -I/build/reproducible-path/woff2-1.0.2/src -I/build/reproducible-path/woff2-1.0.2/include -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -std=gnu++11 -fPIC   -no-canonical-prefixes -MD -MT CMakeFiles/woff2enc.dir/src/font.cc.o -MF CMakeFiles/woff2enc.dir/src/font.cc.o.d -o CMakeFiles/woff2enc.dir/src/font.cc.o -c /build/reproducible-path/woff2-1.0.2/src/font.cc
/usr/bin/c++ -DFONT_COMPRESSION_BIN -D__STDC_FORMAT_MACROS -Dwoff2enc_EXPORTS -I/build/reproducible-path/woff2-1.0.2/src -I/build/reproducible-path/woff2-1.0.2/include -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -std=gnu++11 -fPIC   -no-canonical-prefixes -MD -MT CMakeFiles/woff2enc.dir/src/glyph.cc.o -MF CMakeFiles/woff2enc.dir/src/glyph.cc.o.d -o CMakeFiles/woff2enc.dir/src/glyph.cc.o -c /build/reproducible-path/woff2-1.0.2/src/glyph.cc
/usr/bin/c++ -DFONT_COMPRESSION_BIN -D__STDC_FORMAT_MACROS -Dwoff2enc_EXPORTS -I/build/reproducible-path/woff2-1.0.2/src -I/build/reproducible-path/woff2-1.0.2/include -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -std=gnu++11 -fPIC   -no-canonical-prefixes -MD -MT CMakeFiles/woff2enc.dir/src/normalize.cc.o -MF CMakeFiles/woff2enc.dir/src/normalize.cc.o.d -o CMakeFiles/woff2enc.dir/src/normalize.cc.o -c /build/reproducible-path/woff2-1.0.2/src/normalize.cc
/usr/bin/c++ -DFONT_COMPRESSION_BIN -D__STDC_FORMAT_MACROS -Dwoff2enc_EXPORTS -I/build/reproducible-path/woff2-1.0.2/src -I/build/reproducible-path/woff2-1.0.2/include -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -std=gnu++11 -fPIC   -no-canonical-prefixes -MD -MT CMakeFiles/woff2enc.dir/src/transform.cc.o -MF CMakeFiles/woff2enc.dir/src/transform.cc.o.d -o CMakeFiles/woff2enc.dir/src/transform.cc.o -c /build/reproducible-path/woff2-1.0.2/src/transform.cc
/usr/bin/c++ -DFONT_COMPRESSION_BIN -D__STDC_FORMAT_MACROS -Dwoff2enc_EXPORTS -I/build/reproducible-path/woff2-1.0.2/src -I/build/reproducible-path/woff2-1.0.2/include -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -std=gnu++11 -fPIC   -no-canonical-prefixes -MD -MT CMakeFiles/woff2enc.dir/src/woff2_enc.cc.o -MF CMakeFiles/woff2enc.dir/src/woff2_enc.cc.o.d -o CMakeFiles/woff2enc.dir/src/woff2_enc.cc.o -c /build/reproducible-path/woff2-1.0.2/src/woff2_enc.cc
In file included from /build/reproducible-path/woff2-1.0.2/src/woff2_out.cc:9:
/build/reproducible-path/woff2-1.0.2/include/woff2/output.h:73:25: error: expected ‘)’ before ‘*’ token
   73 |   WOFF2MemoryOut(uint8_t* buf, size_t buf_size);
      |                 ~       ^
      |                         )
/build/reproducible-path/woff2-1.0.2/include/woff2/output.h:79:3: error: ‘uint8_t’ does not name a type
   79 |   uint8_t* buf_;
      |   ^~~~~~~
/build/reproducible-path/woff2-1.0.2/include/woff2/output.h:16:1: note: ‘uint8_t’ is defined in header ‘<cstdint>’; this is probably fixable by adding ‘#include <cstdint>’
   15 | #include <string>
  +++ |+#include <cstdint>
   16 | 
/build/reproducible-path/woff2-1.0.2/src/woff2_out.cc:48:31: error: expected constructor, destructor, or type conversion before ‘(’ token
   48 | WOFF2MemoryOut::WOFF2MemoryOut(uint8_t* buf, size_t buf_size)
      |                               ^
/build/reproducible-path/woff2-1.0.2/src/woff2_out.cc: In member function ‘virtual bool woff2::WOFF2MemoryOut::Write(const void*, size_t, size_t)’:
/build/reproducible-path/woff2-1.0.2/src/woff2_out.cc:61:15: error: ‘buf_’ was not declared in this scope; did you mean ‘buf’?
   61 |   std::memcpy(buf_ + offset, buf, n);
      |               ^~~~
      |               buf
make[3]: *** [CMakeFiles/woff2dec.dir/build.make:96: CMakeFiles/woff2dec.dir/src/woff2_out.cc.o] Error 1
make[3]: *** Waiting for unfinished jobs....
[ 56%] Linking CXX executable woff2_info
/usr/bin/cmake -E cmake_link_script CMakeFiles/woff2_info.dir/link.txt --verbose=1
/usr/bin/c++ -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -Wl,-z,relro -Wl,-z,now -rdynamic -Wl,--dependency-file=CMakeFiles/woff2_info.dir/link.d CMakeFiles/woff2_info.dir/src/woff2_info.cc.o -o woff2_info  -Wl,-rpath,/build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu: libwoff2common.so.1.0.2
make[3]: Leaving directory '/build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu'
[ 56%] Built target woff2_info
[ 60%] Linking CXX shared library libwoff2enc.so
/usr/bin/cmake -E cmake_link_script CMakeFiles/woff2enc.dir/link.txt --verbose=1
/usr/bin/c++ -fPIC -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -Wl,--dependency-file=CMakeFiles/woff2enc.dir/link.d -Wl,-z,relro -Wl,-z,now -shared -Wl,-soname,libwoff2enc.so.1.0.2 -o libwoff2enc.so.1.0.2 CMakeFiles/woff2enc.dir/src/font.cc.o CMakeFiles/woff2enc.dir/src/glyph.cc.o CMakeFiles/woff2enc.dir/src/normalize.cc.o CMakeFiles/woff2enc.dir/src/transform.cc.o CMakeFiles/woff2enc.dir/src/woff2_enc.cc.o  -Wl,-rpath,/build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu: libwoff2common.so.1.0.2 -lbrotlienc
/usr/bin/cmake -E cmake_symlink_library libwoff2enc.so.1.0.2 libwoff2enc.so.1.0.2 libwoff2enc.so
make[3]: Leaving directory '/build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu'
[ 60%] Built target woff2enc
make  -f CMakeFiles/woff2_compress.dir/build.make CMakeFiles/woff2_compress.dir/depend
make[3]: Entering directory '/build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu'
cd /build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /build/reproducible-path/woff2-1.0.2 /build/reproducible-path/woff2-1.0.2 /build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu /build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu /build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu/CMakeFiles/woff2_compress.dir/DependInfo.cmake "--color="
make[3]: Leaving directory '/build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu'
make  -f CMakeFiles/woff2_compress.dir/build.make CMakeFiles/woff2_compress.dir/build
make[3]: Entering directory '/build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu'
[ 65%] Building CXX object CMakeFiles/woff2_compress.dir/src/woff2_compress.cc.o
/usr/bin/c++ -DFONT_COMPRESSION_BIN -D__STDC_FORMAT_MACROS -I/build/reproducible-path/woff2-1.0.2/src -I/build/reproducible-path/woff2-1.0.2/include -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -std=gnu++11   -no-canonical-prefixes -MD -MT CMakeFiles/woff2_compress.dir/src/woff2_compress.cc.o -MF CMakeFiles/woff2_compress.dir/src/woff2_compress.cc.o.d -o CMakeFiles/woff2_compress.dir/src/woff2_compress.cc.o -c /build/reproducible-path/woff2-1.0.2/src/woff2_compress.cc
[ 69%] Linking CXX executable woff2_compress
/usr/bin/cmake -E cmake_link_script CMakeFiles/woff2_compress.dir/link.txt --verbose=1
/usr/bin/c++ -g -O2 -ffile-prefix-map=/build/reproducible-path/woff2-1.0.2=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_FORTIFY_SOURCE=2  -Wl,-z,relro -Wl,-z,now -rdynamic -Wl,--dependency-file=CMakeFiles/woff2_compress.dir/link.d CMakeFiles/woff2_compress.dir/src/woff2_compress.cc.o -o woff2_compress  -Wl,-rpath,/build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu: libwoff2enc.so.1.0.2 libwoff2common.so.1.0.2 -lbrotlienc
make[3]: Leaving directory '/build/reproducible-path/woff2-1.0.2/obj-x86_64-linux-gnu'
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dh_auto_build: error: cd obj-x86_64-linux-gnu && make -j8 "INSTALL=install --strip-program=true" VERBOSE=1 returned exit code 2
make: *** [debian/rules:10: binary] Error 25
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2