CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY /home/conan/w/cci_PR-4684/.conan/data/bzip2/1.0.8/_/_/build/b27e2b40bcb70be2e7d6f0e0c6e43e35c530f8d3/source_subfolder/bzip2.c: In function ‘applySavedFileAttrToOutputFile’: /home/conan/w/cci_PR-4684/.conan/data/bzip2/1.0.8/_/_/build/b27e2b40bcb70be2e7d6f0e0c6e43e35c530f8d3/source_subfolder/bzip2.c:1073:4: warning: ignoring return value of ‘fchown’, declared with attribute warn_unused_result [-Wunused-result] (void) fchown ( fd, fileMetaInfo.st_uid, fileMetaInfo.st_gid ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ BZIP2_FOUND: TRUE BZIP2_NEED_PREFIX: TRUE BZIP2_INCLUDE_DIRS: /home/conan/w/cci_PR-4684/.conan/data/bzip2/1.0.8/_/_/package/b27e2b40bcb70be2e7d6f0e0c6e43e35c530f8d3/include BZIP2_INCLUDE_DIR: /home/conan/w/cci_PR-4684/.conan/data/bzip2/1.0.8/_/_/package/b27e2b40bcb70be2e7d6f0e0c6e43e35c530f8d3/include BZIP2_LIBRARIES: BZIP2_VERSION_STRING: 1.0.8 CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMAKE_INSTALL_BINDIR CMAKE_INSTALL_DATAROOTDIR CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBDIR CMAKE_INSTALL_LIBEXECDIR CMAKE_INSTALL_OLDINCLUDEDIR CMAKE_INSTALL_SBINDIR /home/conan/w/cci_PR-4684/2/bbea58f0-c6b4-4d51-929d-974d9d28dfe3/recipes/bzip2/all/test_package/test_package.c: In function ‘applySavedFileAttrToOutputFile’: /home/conan/w/cci_PR-4684/2/bbea58f0-c6b4-4d51-929d-974d9d28dfe3/recipes/bzip2/all/test_package/test_package.c:1073:4: warning: ignoring return value of ‘fchown’, declared with attribute warn_unused_result [-Wunused-result] (void) fchown ( fd, fileMetaInfo.st_uid, fileMetaInfo.st_gid ); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ CMakeFiles/test_package.dir/test_package.c.o: In function `license': test_package.c:(.text+0x255): undefined reference to `BZ2_bzlibVersion' CMakeFiles/test_package.dir/test_package.c.o: In function `usage': test_package.c:(.text+0x285): undefined reference to `BZ2_bzlibVersion' CMakeFiles/test_package.dir/test_package.c.o: In function `testStream': test_package.c:(.text+0x96a): undefined reference to `BZ2_bzReadOpen' test_package.c:(.text+0x99f): undefined reference to `BZ2_bzRead' test_package.c:(.text+0x9ce): undefined reference to `BZ2_bzReadGetUnused' test_package.c:(.text+0xbaf): undefined reference to `BZ2_bzReadClose' test_package.c:(.text+0xc01): undefined reference to `BZ2_bzReadClose' CMakeFiles/test_package.dir/test_package.c.o: In function `uncompressStream': test_package.c:(.text+0xeb1): undefined reference to `BZ2_bzReadOpen' test_package.c:(.text+0xee7): undefined reference to `BZ2_bzRead' test_package.c:(.text+0xf46): undefined reference to `BZ2_bzReadGetUnused' test_package.c:(.text+0x1127): undefined reference to `BZ2_bzReadClose' test_package.c:(.text+0x1186): undefined reference to `BZ2_bzReadClose' CMakeFiles/test_package.dir/test_package.c.o: In function `compressStream': test_package.c:(.text+0x1520): undefined reference to `BZ2_bzWriteOpen' test_package.c:(.text+0x15d5): undefined reference to `BZ2_bzWriteClose64' test_package.c:(.text+0x163e): undefined reference to `BZ2_bzWriteClose64' test_package.c:(.text+0x1d17): undefined reference to `BZ2_bzWrite' collect2: error: ld returned 1 exit status make[2]: *** [bin/test_package] Error 1 make[1]: *** [CMakeFiles/test_package.dir/all] Error 2 make: *** [all] Error 2 ERROR: bzip2/1.0.8 (test package): Error in build() method, line 12 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/cci_PR-4684/2/bbea58f0-c6b4-4d51-929d-974d9d28dfe3/recipes/bzip2/all/test_package/build/bbb511ef83d0db172ea8bc2ba053ff7a3c97f0b6' '--' '-j3'