[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/unrtf_0.21.10-clean-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 [...] checking for string.h... (cached) yes checking build system type... x86_64-pc-linux-gnu checking host system type... x86_64-pc-linux-gnu checking for GNU libc compatible malloc... yes checking for memset... yes checking for strchr... yes checking for strstr... yes checking that generated files are newer than configure... done configure: creating ./config.status config.status: creating Makefile config.status: creating doc/Makefile config.status: creating outputs/Makefile config.status: creating patches/Makefile config.status: creating src/Makefile config.status: creating tests/Makefile config.status: creating config.h config.status: executing depfiles commands dh_auto_build dh_auto_build: warning: Compatibility levels before 10 are deprecated (level 9 in use) make -j1 make[1]: Entering directory '/build/reproducible-path/unrtf-0.21.10-clean' make all-recursive make[2]: Entering directory '/build/reproducible-path/unrtf-0.21.10-clean' Making all in src make[3]: Entering directory '/build/reproducible-path/unrtf-0.21.10-clean/src' gcc -DHAVE_CONFIG_H -I. -I.. -DPKGDATADIR=\"/usr/share/unrtf\" -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/unrtf-0.21.10-clean=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -c -o attr.o attr.c gcc -DHAVE_CONFIG_H -I. -I.. -DPKGDATADIR=\"/usr/share/unrtf\" -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/unrtf-0.21.10-clean=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -c -o convert.o convert.c convert.c: In function ‘cmd_field’: convert.c:1522:81: warning: passing argument 1 of ‘my_free’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers] 1522 | my_free(string); | ^~~~~~ In file included from convert.c:115: malloc.h:36:21: note: expected ‘char *’ but argument is of type ‘const char *’ 36 | extern void my_free(char *); | ^~~~~~ convert.c: In function ‘print_with_special_exprs’: convert.c:3795:41: warning: passing argument 1 of ‘my_free’ discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers] 3795 | my_free(post_trans); | ^~~~~~~~~~ malloc.h:36:21: note: expected ‘char *’ but argument is of type ‘const char *’ 36 | extern void my_free(char *); | ^~~~~~ gcc -DHAVE_CONFIG_H -I. -I.. -DPKGDATADIR=\"/usr/share/unrtf\" -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/unrtf-0.21.10-clean=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -c -o error.o error.c gcc -DHAVE_CONFIG_H -I. -I.. -DPKGDATADIR=\"/usr/share/unrtf\" -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/unrtf-0.21.10-clean=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -c -o hash.o hash.c gcc -DHAVE_CONFIG_H -I. -I.. -DPKGDATADIR=\"/usr/share/unrtf\" -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/unrtf-0.21.10-clean=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -c -o my_iconv.o my_iconv.c gcc -DHAVE_CONFIG_H -I. -I.. -DPKGDATADIR=\"/usr/share/unrtf\" -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/unrtf-0.21.10-clean=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -c -o main.o main.c gcc -DHAVE_CONFIG_H -I. -I.. -DPKGDATADIR=\"/usr/share/unrtf\" -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/unrtf-0.21.10-clean=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -c -o malloc.o malloc.c malloc.c:168:7: error: conflicting types for ‘malloc’; have ‘void *(void)’ 168 | void *malloc(); | ^~~~~~ In file included from malloc.c:50: /usr/include/stdlib.h:672:14: note: previous declaration of ‘malloc’ with type ‘void *(long unsigned int)’ 672 | extern void *malloc (size_t __size) __THROW __attribute_malloc__ | ^~~~~~ malloc.c: In function ‘rpl_malloc’: malloc.c:180:16: error: too many arguments to function ‘malloc’; expected 0, have 1 180 | return malloc(n); | ^~~~~~ ~ malloc.c:168:7: note: declared here 168 | void *malloc(); | ^~~~~~ make[3]: *** [Makefile:406: malloc.o] Error 1 make[3]: Leaving directory '/build/reproducible-path/unrtf-0.21.10-clean/src' make[2]: *** [Makefile:382: all-recursive] Error 1 make[2]: Leaving directory '/build/reproducible-path/unrtf-0.21.10-clean' make[1]: *** [Makefile:323: all] Error 2 make[1]: Leaving directory '/build/reproducible-path/unrtf-0.21.10-clean' dh_auto_build: error: make -j1 returned exit code 2 make: *** [debian/rules:3: binary] Error 255 dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2