[GNC-dev] Noob: setup and build master

[John Ralls]

> On Mar 12, 2020, at 12:11 PM, Jean Laroche <ripngo at gmail.com> wrote:
> 
> Not having luck building master.
> I followed John's instructions.
> - I have no libgnc or libgnucash in $PREFIX/lib
> - I created the xcode project using cmake -G Xcode -D CMAKE_INSTALL_PREFIX=$PREFIX -D GTEST_ROOT=$SRCROOT/googletest $SRCROOT/gnucash-git
> 
> But the build fails with this error:
> 
> Ld /Users/jlaroche/gnucash-stable/build_xcode_master/lib/libgnc-core-utils.dylib normal x86_64
>    cd /Users/jlaroche/gnucash-stable/src/gnucash-git
>    export MACOSX_DEPLOYMENT_TARGET=10.13
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch x86_64 -dynamiclib -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk -L/Users/jlaroche/gnucash-stable/build_xcode_master/lib -F/Users/jlaroche/gnucash-stable/build_xcode_master/lib -filelist /Users/jlaroche/gnucash-stable/build_xcode_master/libgnucash/core-utils/gnucash.build/Debug/gnc-core-utils.build/Objects-normal/x86_64/gnc-core-utils.LinkFileList -install_name @rpath/libgnc-core-utils.dylib -mmacosx-version-min=10.13 -Xlinker -object_path_lto -Xlinker /Users/jlaroche/gnucash-stable/build_xcode_master/libgnucash/core-utils/gnucash.build/Debug/gnc-core-utils.build/Objects-normal/x86_64/gnc-core-utils_lto.o -Xlinker -no_deduplicate -fobjc-link-runtime -dynamiclib -Wl,-headerpad_max_install_names /Users/jlaroche/gnucash-stable/lib/libboost_date_time.dylib /Users/jlaroche/gnucash-stable/lib/libboost_regex.dylib /Users/jlaroche/gnucash-stable/lib/libboost_locale.dylib /Users/jlaroche/gnucash-stable/lib/libboost_filesystem.dylib /Users/jlaroche/gnucash-stable/lib/libboost_system.dylib -L/Users/jlaroche/gnucash-stable/lib -lintl -lglib-2.0 -L/Users/jlaroche/gnucash-stable/lib -lgobject-2.0 -lintl -lglib-2.0 -L/Users/jlaroche/gnucash-stable/lib -lgtkmacintegration-gtk3 -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lintl -lglib-2.0 -lobjc -framework Cocoa -framework Security -framework Carbon -lgtkmacintegration-gtk3 -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 -lharfbuzz -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lobjc -framework Cocoa -framework Security -framework Carbon -Xlinker -dependency_info -Xlinker /Users/jlaroche/gnucash-stable/build_xcode_master/libgnucash/core-utils/gnucash.build/Debug/gnc-core-utils.build/Objects-normal/x86_64/gnc-core-utils_dependency_info.dat -o /Users/jlaroche/gnucash-stable/build_xcode_master/lib/libgnc-core-utils.dylib
> 
> Undefined symbols for architecture x86_64:
>  "boost::system::detail::system_category_instance", referenced from:
>      boost::system::system_category() in gnc-filepath-utils.o
>  "boost::system::detail::generic_category_instance", referenced from:
>      boost::system::generic_category() in gnc-filepath-utils.o
> ld: symbol(s) not found for architecture x86_64
> clang: error: linker command failed with exit code 1 (use -v to see invocation)
> 
> Does this ring a bell for anyone?
> Jean

It's $PREFIX/lib/gnucash/, not $PREFIX/lib/libgnucash*, but that's not your problem.

It's because C++17 is set in GnuCash's CMakeLists.txt and boost defaults to building for C++14. I'd forgotten that I'd pushed that to the public master branch. I think the simplest way to rebuild it for you would be to add
   module_cmakeargs['boost'] = '-DCMAKE_CXX_FLAGS=' . os.environ['CXXFLAGS'] . ' -std=c++17'
to jhbuildrc-custom then run
   jhbuild buildone --force --clean boost

If that doesn't work on its own try doing the buildone again but stop it and tell it to wipe the directory and start over.

Regards,
John Ralls