> Le 30 juin 2019 à 18:45, Wouter Beek <wou...@triply.cc> a écrit : > > Hi,
Hi Wouter, > I'm trying to build the example calc++ program with Conan and CMake: > https://github.com/wouterbeek/conan-cmake-bison-flex That sounds interesting! > The promise of Conan and CMake is that one could ultimately build a > Flex/Bison program on multiple platforms, which is more difficult with > traditional build systems. > > Unfortunately, I'm currently stuck at the linking phase (see the > output below). Does anybody know what I'm doing wrong / how to > proceed? Well, your instruction to clone and compile are obsolete, the project, I guess, has changed name. And indeed, it does not work, but sooner than in your case. > -- Conan: Automatic detection of conan settings from cmake > In file included from <stdin>:1: > In file included from > /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string:500: > In file included from > /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string_view:176: > In file included from > /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/__string:56: > In file included from > /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/algorithm:642: > In file included from > /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/cstring:61: > /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/string.h:61:15: > fatal error: 'string.h' file not found > #include_next <string.h> > ^~~~~~~~~~ > 1 error generated. > -- Conan: Settings= > -s;build_type=Debug;-s;compiler=apple-clang;-s;compiler.version=10.0;-s;compiler.libcxx=libc++ > -- Conan executing: conan install /tmp/conan-cmake-bison-flex/conanfile.txt > -s build_type=Debug -s compiler=apple-clang -s compiler.version=10.0 -s > compiler.libcxx=libc++ -g=cmake --build=missing > CMake Error at Debug/conan.cmake:399 (message): > Conan install failed='No such file or directory' > Call Stack (most recent call first): > Debug/conan.cmake:485 (conan_cmake_install) > CMakeLists.txt:9 (conan_cmake_run) > > > -- Configuring incomplete, errors occurred! > See also "/tmp/conan-cmake-bison-flex/Debug/CMakeFiles/CMakeOutput.log". > PS: The Calc++ example seems to be partially missing from Git master. > Is this intentional? Yes, it is extracted from the documentation. You should start from a tarball to get the full example. > /home/wbeek/.conan/data/bison/3.3.2/bincrafters/stable/package/7e924ee4fb46c796a19516dcf956dd2bc0171a91/bin/bison > --defines=/home/wbeek/tmp/calc++/Debug/Parser.hpp -o > /home/wbeek/tmp/calc++/Debug/Parser.cpp > /home/wbeek/tmp/calc++/Parser.yy > cd /home/wbeek/tmp/calc++/Debug && /usr/bin/cmake -E cmake_depends > "Unix Makefiles" /home/wbeek/tmp/calc++ /home/wbeek/tmp/calc++ > /home/wbeek/tmp/calc++/Debug /home/wbeek/tmp/calc++/Debug > /home/wbeek/tmp/calc++/Debug/CMakeFiles/calc++.dir/DependInfo.cmake > --color= > Dependee "/home/wbeek/tmp/calc++/Debug/CMakeFiles/calc++.dir/DependInfo.cmake" > is newer than depender > "/home/wbeek/tmp/calc++/Debug/CMakeFiles/calc++.dir/depend.internal". > Dependee > "/home/wbeek/tmp/calc++/Debug/CMakeFiles/CMakeDirectoryInformation.cmake" > is newer than depender > "/home/wbeek/tmp/calc++/Debug/CMakeFiles/calc++.dir/depend.internal". > Scanning dependencies of target calc++ > gmake[2]: Leaving directory '/home/wbeek/tmp/calc++/Debug' > /usr/bin/gmake -f CMakeFiles/calc++.dir/build.make CMakeFiles/calc++.dir/build > gmake[2]: Entering directory '/home/wbeek/tmp/calc++/Debug' Reading build logs from cmake is really painful. > [ 50%] Building CXX object CMakeFiles/calc++.dir/Driver.cpp.o > /usr/bin/c++ -I/home/wbeek/tmp/calc++/Debug -I/home/wbeek/tmp/calc++ > -g -o CMakeFiles/calc++.dir/Driver.cpp.o -c > /home/wbeek/tmp/calc++/Driver.cpp > [ 66%] Building CXX object CMakeFiles/calc++.dir/Parser.cpp.o > /usr/bin/c++ -I/home/wbeek/tmp/calc++/Debug -I/home/wbeek/tmp/calc++ > -g -o CMakeFiles/calc++.dir/Parser.cpp.o -c > /home/wbeek/tmp/calc++/Debug/Parser.cpp > [ 83%] Building CXX object CMakeFiles/calc++.dir/Lexer.cpp.o > /usr/bin/c++ -I/home/wbeek/tmp/calc++/Debug -I/home/wbeek/tmp/calc++ > -g -o CMakeFiles/calc++.dir/Lexer.cpp.o -c > /home/wbeek/tmp/calc++/Debug/Lexer.cpp > [100%] Linking CXX executable bin/calc++ > /usr/bin/cmake -E cmake_link_script CMakeFiles/calc++.dir/link.txt --verbose=1 > /usr/bin/c++ -g CMakeFiles/calc++.dir/Driver.cpp.o > CMakeFiles/calc++.dir/Parser.cpp.o CMakeFiles/calc++.dir/Lexer.cpp.o > -o bin/calc++ > /home/wbeek/.conan/data/flex/2.6.4/bincrafters/stable/package/7e924ee4fb46c796a19516dcf956dd2bc0171a91/lib/libfl.a > /usr/bin/ld: > /home/wbeek/.conan/data/flex/2.6.4/bincrafters/stable/package/7e924ee4fb46c796a19516dcf956dd2bc0171a91/lib/libfl.a(libmain.o): > in function `main': > /home/wbeek/.conan/data/flex/2.6.4/bincrafters/stable/build/7e924ee4fb46c796a19516dcf956dd2bc0171a91/source_subfolder/src/libmain.c:33: > undefined reference to `yylex' Have you checked the content of the scanner file? Have you used `nm` to look for the names of the symbols in the object files and see where yylex is defined? _______________________________________________ help-bison@gnu.org https://lists.gnu.org/mailman/listinfo/help-bison
