Package: src:ipe
Version: 7.2.30-1
Severity: important
Tags: sid forky
User: debian-...@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/ipe_7.2.30-1_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

[...]
mkdir -p ../../build/obj/ipetoipe; echo "" > 
../../build/obj/ipetoipe/depend.mak; for f in ipetoipe.cpp ; do g++ -std=c++17 
-MM -MT ../../build/obj/ipetoipe/${f%%.cpp}.o -Wdate-time -D_FORTIFY_SOURCE=2 
-DIPEUI_QT -fPIC -I../include $f >> ../../build/obj/ipetoipe/depend.mak; done
mkdir -p ../../build/obj/ipe6upgrade; echo "" > 
../../build/obj/ipe6upgrade/depend.mak; for f in ipe6upgrade.cpp ; do g++ 
-std=c++17 -MM -MT ../../build/obj/ipe6upgrade/${f%%.cpp}.o -Wdate-time 
-D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include $f >> 
../../build/obj/ipe6upgrade/depend.mak; done
mkdir -p ../../build/obj/ipeextract; echo "" > 
../../build/obj/ipeextract/depend.mak; for f in ipeextract.cpp ; do g++ 
-std=c++17 -MM -MT ../../build/obj/ipeextract/${f%%.cpp}.o -Wdate-time 
-D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include $f >> 
../../build/obj/ipeextract/depend.mak; done
mkdir -p ../../build/bin
mkdir -p ../../build/obj/ipelua; echo "" > ../../build/obj/ipelua/depend.mak; 
for f in ipelib.cpp ipeluageo.cpp ipeluaobj.cpp ipeluastyle.cpp ipeluapage.cpp 
ipeluaipelet.cpp ; do g++ -std=c++17 -MM -MT 
../../build/obj/ipelua/${f%%.cpp}.o -Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT 
-fPIC -I../include -I/usr/include/lua5.4  $f >> 
../../build/obj/ipelua/depend.mak; done
mkdir -p ../../build/obj/ipecairo; echo "" > 
../../build/obj/ipecairo/depend.mak; for f in ipecairopainter.cpp ipefonts.cpp 
ipethumbs.cpp ; do g++ -std=c++17 -MM -MT ../../build/obj/ipecairo/${f%%.cpp}.o 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include 
-I/usr/include/cairo -I/usr/include/libpng16 -I/usr/include/freetype2 
-I/usr/include/pixman-1  -I/usr/include/freetype2 -I/usr/include/libpng16  $f 
>> ../../build/obj/ipecairo/depend.mak; done
Package libcurl was not found in the pkg-config search path.
Perhaps you should add the directory containing `libcurl.pc'
to the PKG_CONFIG_PATH environment variable
Package 'libcurl', required by 'virtual:world', not found
cp ipecurl.sh ../../build/bin/ipecurl
chmod 0755 ../../build/bin/ipecurl
make[3]: Leaving directory '/build/reproducible-path/ipe-7.2.30/src/ipecurl'
Compiling ipetoipe.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include  -c -o 
../../build/obj/ipetoipe/ipetoipe.o ipetoipe.cpp
Compiling ipe6upgrade.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include  -c -o 
../../build/obj/ipe6upgrade/ipe6upgrade.o ipe6upgrade.cpp
Compiling ipeextract.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include  -c -o 
../../build/obj/ipeextract/ipeextract.o ipeextract.cpp
Compiling ipecairopainter.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 -fPIC 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include 
-I/usr/include/cairo -I/usr/include/libpng16 -I/usr/include/freetype2 
-I/usr/include/pixman-1  -I/usr/include/freetype2 -I/usr/include/libpng16   -c 
-o ../../build/obj/ipecairo/ipecairopainter.o ipecairopainter.cpp
Compiling ipefonts.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 -fPIC 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include 
-I/usr/include/cairo -I/usr/include/libpng16 -I/usr/include/freetype2 
-I/usr/include/pixman-1  -I/usr/include/freetype2 -I/usr/include/libpng16   -c 
-o ../../build/obj/ipecairo/ipefonts.o ipefonts.cpp
Compiling ipelib.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 -fPIC 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include 
-I/usr/include/lua5.4   -c -o ../../build/obj/ipelua/ipelib.o ipelib.cpp
Compiling ipeluageo.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 -fPIC 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include 
-I/usr/include/lua5.4   -c -o ../../build/obj/ipelua/ipeluageo.o ipeluageo.cpp
mkdir -p ../../build/lib
g++ -Wl,-z,relro -Wl,-z,now -shared  -Wl,-soname,libipeui.so.7.2.30 -o 
../../build/lib/libipeui.so.7.2.30 ../../build/obj/ipeui/ipeui_common.o 
../../build/obj/ipeui/ipeui_qt.o ../../build/obj/ipeui/moc_ipeui_qt.o 
-lQt6Widgets -lQt6Gui -lQt6Core  -llua5.4  
/usr/bin/ld: ../../build/obj/ipeui/ipeui_qt.o:(.rodata+0x54): multiple 
definition of `QtPrivate::IsFloatType_v<_Float16>'; 
../../build/obj/ipeui/ipeui_common.o:(.rodata+0x38): first defined here
/usr/bin/ld: ../../build/obj/ipeui/moc_ipeui_qt.o:(.rodata+0x274): multiple 
definition of `QtPrivate::IsFloatType_v<_Float16>'; 
../../build/obj/ipeui/ipeui_common.o:(.rodata+0x38): first defined here
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:31: ../../build/lib/libipeui.so.7.2.30] Error 1
rm moc_ipeui_qt.cpp
make[3]: Leaving directory '/build/reproducible-path/ipe-7.2.30/src/ipeui'
make[2]: *** [Makefile:59: ipeui] Error 2
make[2]: *** Waiting for unfinished jobs....
Compiling ipeluaobj.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 -fPIC 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include 
-I/usr/include/lua5.4   -c -o ../../build/obj/ipelua/ipeluaobj.o ipeluaobj.cpp
mkdir -p ../../build/bin
g++ -Wl,-z,relro -Wl,-z,now -o ../../build/bin/ipetoipe 
../../build/obj/ipetoipe/ipetoipe.o -L../../build/lib -lipe
make[3]: Leaving directory '/build/reproducible-path/ipe-7.2.30/src/ipetoipe'
Compiling ipeluastyle.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 -fPIC 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include 
-I/usr/include/lua5.4   -c -o ../../build/obj/ipelua/ipeluastyle.o 
ipeluastyle.cpp
mkdir -p ../../build/bin
g++ -Wl,-z,relro -Wl,-z,now -o ../../build/bin/ipe6upgrade 
../../build/obj/ipe6upgrade/ipe6upgrade.o -L../../build/lib -lipe
make[3]: Leaving directory '/build/reproducible-path/ipe-7.2.30/src/ipe6upgrade'
Compiling ipeluapage.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 -fPIC 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include 
-I/usr/include/lua5.4   -c -o ../../build/obj/ipelua/ipeluapage.o ipeluapage.cpp
mkdir -p ../../build/bin
g++ -Wl,-z,relro -Wl,-z,now -o ../../build/bin/ipeextract 
../../build/obj/ipeextract/ipeextract.o -L../../build/lib -lipe
make[3]: Leaving directory '/build/reproducible-path/ipe-7.2.30/src/ipeextract'
Compiling ipeluaipelet.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 -fPIC 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include 
-I/usr/include/lua5.4   -c -o ../../build/obj/ipelua/ipeluaipelet.o 
ipeluaipelet.cpp
Compiling ipethumbs.cpp...
g++ -g -O2 -ffile-prefix-map=/build/reproducible-path/ipe-7.2.30=. 
-fstack-protector-strong -fstack-clash-protection -Wformat 
-Werror=format-security -fcf-protection -fPIC -Wall -std=c++20 -g -O2 -fPIC 
-Wdate-time -D_FORTIFY_SOURCE=2 -DIPEUI_QT -fPIC -I../include 
-I/usr/include/cairo -I/usr/include/libpng16 -I/usr/include/freetype2 
-I/usr/include/pixman-1  -I/usr/include/freetype2 -I/usr/include/libpng16   -c 
-o ../../build/obj/ipecairo/ipethumbs.o ipethumbs.cpp
mkdir -p ../../build/lib
g++ -Wl,-z,relro -Wl,-z,now -shared  -Wl,-soname,libipecairo.so.7.2.30 -o 
../../build/lib/libipecairo.so.7.2.30 
../../build/obj/ipecairo/ipecairopainter.o ../../build/obj/ipecairo/ipefonts.o 
../../build/obj/ipecairo/ipethumbs.o -L../../build/lib -lipe -lcairo  
-lfreetype 
ln -sf libipecairo.so.7.2.30 ../../build/lib/libipecairo.so
make[3]: Leaving directory '/build/reproducible-path/ipe-7.2.30/src/ipecairo'
mkdir -p ../../build/lib
g++ -Wl,-z,relro -Wl,-z,now -shared  -Wl,-soname,libipelua.so.7.2.30 -o 
../../build/lib/libipelua.so.7.2.30 ../../build/obj/ipelua/ipelib.o 
../../build/obj/ipelua/ipeluageo.o ../../build/obj/ipelua/ipeluaobj.o 
../../build/obj/ipelua/ipeluastyle.o ../../build/obj/ipelua/ipeluapage.o 
../../build/obj/ipelua/ipeluaipelet.o -L../../build/lib -lipe -llua5.4  -ldl
ln -sf libipelua.so.7.2.30 ../../build/lib/libipelua.so
make[3]: Leaving directory '/build/reproducible-path/ipe-7.2.30/src/ipelua'
make[2]: Leaving directory '/build/reproducible-path/ipe-7.2.30/src'
dh_auto_build: error: cd src && make -j8 "INSTALL=install --strip-program=true" 
returned exit code 2
make[1]: *** [debian/rules:14: build-arch] Error 25
make[1]: Leaving directory '/build/reproducible-path/ipe-7.2.30'
make: *** [debian/rules:14: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2

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