RISC-V: Build fails on v0.10.0

[IngwiePhoenix]

Steps to Reproduce the Problem

1. git clone $uri -b v0.10.0
2. cd libelektra; mkdir out; cd out
3. cmake -G Ninja ..; ninja

Expected Result

A build of libelektra and kdb.

Actual Result

Well... this.

I was working in a screen, so scrolling is a little difficult. Apologies, this was simply easier. :)

System Information

• Elektra: v0.10.0
• Operating System: Debian "trixie/sid", rolling, riscv64gc (aka. riscv64imafdc)
• GCC: 13.2.0

Further Log Files and Output

CMake configures just fine, nothing of importance stuck out to me. I will retry with classic makefiles instead of Ninja and see if that changes anything, but considering this is a C++ error, I doubt it.

Got any ideas what this is?
Thanks and kind regards,
Ingwie

PS.: Is glib/gobject required? I saw it scroll by in the CMake log and in ccmake.

[markus2330]

Are you sure that this is related to RISC-V?

For me it looks like the plugin ccode is broken, please try to exclude it.

Is glib/gobject required?

Only for an (optional) binding but this seems to me unrelated to this error.

[IngwiePhoenix]

Are you sure that this is related to RISC-V?

Not neccessarily; but libraries sometimes tend to behave a little oddly (missing #ifdefs etcetera) from time to time. So it isn't rare to run into this; still a relatively new arch. :)

Only for an (optional) binding but this seems to me unrelated to this error.

Ah, thanks. Was just curious about this.

For me it looks like the plugin ccode is broken, please try to exclude it.

I disabled the ccode plugin and cpp binding, but I still get errors from the C++ binding. (-cpp;-ccode in `BINDINGS and PLUGINS) and also used the makefile generator instead of Ninja.

In file included from /nvme/opt/libelektra/src/tools/kdb/coloredkdbio.hpp:24,
                 from /nvme/opt/libelektra/src/tools/kdb/basename.hpp:12,
                 from /nvme/opt/libelektra/src/tools/kdb/basename.cpp:9:
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:6: warning: elaborated-type-specifier for a scoped enum must not use the ‘class’ keyword
   42 | enum class ElektraNamespace : std::uint8_t
      | ~~~~ ^~~~~
      |      -----
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:12: error: use of enum ‘ElektraNamespace’ without previous declaration
   42 | enum class ElektraNamespace : std::uint8_t
      |            ^~~~~~~~~~~~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:29: error: expected unqualified-id before ‘:’ token
   42 | enum class ElektraNamespace : std::uint8_t
      |                             ^
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:55:14: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
   55 | static const ElektraNamespace ELEKTRA_NAMESPACES[] = {
      |              ^~~~~~~~~~~~~~~~
      |              elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:235:16: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
  235 |         inline ElektraNamespace getNamespace () const;
      |                ^~~~~~~~~~~~~~~~
      |                elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:236:38: error: ‘ElektraNamespace’ has not been declared
  236 |         inline ssize_t setNamespace (ElektraNamespace ns) const;
      |                                      ^~~~~~~~~~~~~~~~
In file included from /nvme/opt/libelektra/src/tools/kdb/coloredkdbio.hpp:24,
                 from /nvme/opt/libelektra/src/tools/kdb/cache.hpp:12,
                 from /nvme/opt/libelektra/src/tools/kdb/cache.cpp:9:
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:6: warning: elaborated-type-specifier for a scoped enum must not use the ‘class’ keyword
   42 | enum class ElektraNamespace : std::uint8_t
      | ~~~~ ^~~~~
      |      -----
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:12: error: use of enum ‘ElektraNamespace’ without previous declaration
   42 | enum class ElektraNamespace : std::uint8_t
      |            ^~~~~~~~~~~~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:29: error: expected unqualified-id before ‘:’ token
   42 | enum class ElektraNamespace : std::uint8_t
      |                             ^
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:55:14: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
   55 | static const ElektraNamespace ELEKTRA_NAMESPACES[] = {
      |              ^~~~~~~~~~~~~~~~
      |              elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:235:16: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
  235 |         inline ElektraNamespace getNamespace () const;
      |                ^~~~~~~~~~~~~~~~
      |                elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:236:38: error: ‘ElektraNamespace’ has not been declared
  236 |         inline ssize_t setNamespace (ElektraNamespace ns) const;
      |                                      ^~~~~~~~~~~~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1463:8: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
 1463 | inline ElektraNamespace Key::getNamespace () const
      |        ^~~~~~~~~~~~~~~~
      |        elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:1: warning: inline variables are only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      | ^~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:16: error: ‘ssize_t kdb::Key::setNamespace’ is not a static data member of ‘class kdb::Key’
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      |                ^~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:35: error: ‘ElektraNamespace’ was not declared in this scope; did you mean ‘elektraNamespace’?
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      |                                   ^~~~~~~~~~~~~~~~
      |                                   elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1463:8: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
 1463 | inline ElektraNamespace Key::getNamespace () const
      |        ^~~~~~~~~~~~~~~~
      |        elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:1: warning: inline variables are only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      | ^~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:16: error: ‘ssize_t kdb::Key::setNamespace’ is not a static data member of ‘class kdb::Key’
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      |                ^~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:35: error: ‘ElektraNamespace’ was not declared in this scope; did you mean ‘elektraNamespace’?
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      |                                   ^~~~~~~~~~~~~~~~
      |                                   elektraNamespace
In file included from /nvme/opt/libelektra/src/tools/kdb/coloredkdbio.hpp:24,
                 from /nvme/opt/libelektra/src/tools/kdb/cmdline.hpp:26,
                 from /nvme/opt/libelektra/src/tools/kdb/cmdline.cpp:9:
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:6: warning: elaborated-type-specifier for a scoped enum must not use the ‘class’ keyword
   42 | enum class ElektraNamespace : std::uint8_t
      | ~~~~ ^~~~~
      |      -----
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:12: error: use of enum ‘ElektraNamespace’ without previous declaration
   42 | enum class ElektraNamespace : std::uint8_t
      |            ^~~~~~~~~~~~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:29: error: expected unqualified-id before ‘:’ token
   42 | enum class ElektraNamespace : std::uint8_t
      |                             ^
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:55:14: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
   55 | static const ElektraNamespace ELEKTRA_NAMESPACES[] = {
      |              ^~~~~~~~~~~~~~~~
      |              elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:235:16: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
  235 |         inline ElektraNamespace getNamespace () const;
      |                ^~~~~~~~~~~~~~~~
      |                elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:236:38: error: ‘ElektraNamespace’ has not been declared
  236 |         inline ssize_t setNamespace (ElektraNamespace ns) const;
      |                                      ^~~~~~~~~~~~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1463:8: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
 1463 | inline ElektraNamespace Key::getNamespace () const
      |        ^~~~~~~~~~~~~~~~
      |        elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:1: warning: inline variables are only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      | ^~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:16: error: ‘ssize_t kdb::Key::setNamespace’ is not a static data member of ‘class kdb::Key’
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      |                ^~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:35: error: ‘ElektraNamespace’ was not declared in this scope; did you mean ‘elektraNamespace’?
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      |                                   ^~~~~~~~~~~~~~~~
      |                                   elektraNamespace
In file included from /nvme/opt/libelektra/src/bindings/cpp/include/kdbio.hpp:18,
                 from /nvme/opt/libelektra/src/bindings/cpp/include/kdbexcept.hpp:23,
                 from /nvme/opt/libelektra/src/bindings/cpp/include/kdb.hpp:15,
                 from /nvme/opt/libelektra/src/tools/kdb/cmerge.hpp:13,
                 from /nvme/opt/libelektra/src/tools/kdb/cmerge.cpp:9:
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:6: warning: elaborated-type-specifier for a scoped enum must not use the ‘class’ keyword
   42 | enum class ElektraNamespace : std::uint8_t
      | ~~~~ ^~~~~
      |      -----
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:12: error: use of enum ‘ElektraNamespace’ without previous declaration
   42 | enum class ElektraNamespace : std::uint8_t
      |            ^~~~~~~~~~~~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:29: error: expected unqualified-id before ‘:’ token
   42 | enum class ElektraNamespace : std::uint8_t
      |                             ^
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:55:14: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
   55 | static const ElektraNamespace ELEKTRA_NAMESPACES[] = {
      |              ^~~~~~~~~~~~~~~~
      |              elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:235:16: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
  235 |         inline ElektraNamespace getNamespace () const;
      |                ^~~~~~~~~~~~~~~~
      |                elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:236:38: error: ‘ElektraNamespace’ has not been declared
  236 |         inline ssize_t setNamespace (ElektraNamespace ns) const;
      |                                      ^~~~~~~~~~~~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1463:8: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
 1463 | inline ElektraNamespace Key::getNamespace () const
      |        ^~~~~~~~~~~~~~~~
      |        elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:1: warning: inline variables are only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      | ^~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:16: error: ‘ssize_t kdb::Key::setNamespace’ is not a static data member of ‘class kdb::Key’
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      |                ^~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:35: error: ‘ElektraNamespace’ was not declared in this scope; did you mean ‘elektraNamespace’?
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      |                                   ^~~~~~~~~~~~~~~~
      |                                   elektraNamespace
make[2]: *** [src/tools/kdb/CMakeFiles/kdb-objects.dir/build.make:90: src/tools/kdb/CMakeFiles/kdb-objects.dir/basename.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....

However, I wanted to get a cleaner error log (since I ran with make -j$(nproc)) so I ran with make -j1 to force single-process building. This brought up about the same error, but on a different object, it seems.

[ 41%] Building CXX object src/libs/tools/src/CMakeFiles/elektratools.dir/backend.cpp.o
In file included from /nvme/opt/libelektra/src/bindings/cpp/include/kdbio.hpp:18,
                 from /nvme/opt/libelektra/src/bindings/cpp/include/kdbexcept.hpp:23,
                 from /nvme/opt/libelektra/src/bindings/cpp/include/kdb.hpp:15,
                 from /nvme/opt/libelektra/src/libs/tools/include/pluginspec.hpp:17,
                 from /nvme/opt/libelektra/src/libs/tools/include/backendparser.hpp:21,
                 from /nvme/opt/libelektra/src/libs/tools/include/backend.hpp:14,
                 from /nvme/opt/libelektra/src/libs/tools/src/backend.cpp:11:
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:6: warning: elaborated-type-specifier for a scoped enum must not use the ‘class’ keyword
   42 | enum class ElektraNamespace : std::uint8_t
      | ~~~~ ^~~~~
      |      -----
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:12: error: use of enum ‘ElektraNamespace’ without previous declaration
   42 | enum class ElektraNamespace : std::uint8_t
      |            ^~~~~~~~~~~~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:42:29: error: expected unqualified-id before ‘:’ token
   42 | enum class ElektraNamespace : std::uint8_t
      |                             ^
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:55:14: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
   55 | static const ElektraNamespace ELEKTRA_NAMESPACES[] = {
      |              ^~~~~~~~~~~~~~~~
      |              elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:235:16: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
  235 |         inline ElektraNamespace getNamespace () const;
      |                ^~~~~~~~~~~~~~~~
      |                elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:236:38: error: ‘ElektraNamespace’ has not been declared
  236 |         inline ssize_t setNamespace (ElektraNamespace ns) const;
      |                                      ^~~~~~~~~~~~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1463:8: error: ‘ElektraNamespace’ does not name a type; did you mean ‘elektraNamespace’?
 1463 | inline ElektraNamespace Key::getNamespace () const
      |        ^~~~~~~~~~~~~~~~
      |        elektraNamespace
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:1: warning: inline variables are only available with ‘-std=c++17’ or ‘-std=gnu++17’ [-Wc++17-extensions]
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      | ^~~~~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:16: error: ‘ssize_t kdb::Key::setNamespace’ is not a static data member of ‘class kdb::Key’
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      |                ^~~
/nvme/opt/libelektra/src/bindings/cpp/include/key.hpp:1473:35: error: ‘ElektraNamespace’ was not declared in this scope; did you mean ‘elektraNamespace’?
 1473 | inline ssize_t Key::setNamespace (ElektraNamespace ns) const
      |                                   ^~~~~~~~~~~~~~~~
      |                                   elektraNamespace
/nvme/opt/libelektra/src/libs/tools/src/backend.cpp: In member function ‘virtual void kdb::tools::Backend::setMountpoint(kdb::Key, kdb::KeySet)’:
/nvme/opt/libelektra/src/libs/tools/src/backend.cpp:138:24: error: ‘class kdb::Key’ has no member named ‘getNamespace’; did you mean ‘setNamespace’?
  138 |         if (mountpoint.getNamespace () == ElektraNamespace::PROC)
      |                        ^~~~~~~~~~~~
      |                        setNamespace
/nvme/opt/libelektra/src/libs/tools/src/backend.cpp:138:43: error: ‘ElektraNamespace’ has not been declared
  138 |         if (mountpoint.getNamespace () == ElektraNamespace::PROC)
      |                                           ^~~~~~~~~~~~~~~~
make[2]: *** [src/libs/tools/src/CMakeFiles/elektratools.dir/build.make:76: src/libs/tools/src/CMakeFiles/elektratools.dir/backend.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:7864: src/libs/tools/src/CMakeFiles/elektratools.dir/all] Error 2
make: *** [Makefile:166: all] Error 2

Here is what CMake's got stored:

# cat CMakeCache.txt | grep -E -i "plugins|bindings|cpp|ccode"
//List of bindings already added, only for informational purposes.
// Modify BINDINGS to change the list.
ADDED_BINDINGS:STRING=intercept_env;python
// Modify PLUGINS to change the list.
//List of plugins already added, only for informational purposes.
// Modify PLUGINS to change the list.
ADDED_PLUGINS:STRING=backend;base64;blacklist;c;conditionals;constants;counter;csvstorage;date;dbus;desktop;directoryvalue;dpkg;dump;error;fcrypt;filecheck;fstab;glob;gopts;hexcode;hexnumber;hosts;iconv;ipaddr;journald;keytometa;line;lineendings;logchange;macaddr;mathcheck;mini;missing;modules;network;ni;noresolver;path;process;profile;python;quickdump;range;reference;rename;resolver_fm_b_b;resolver_fm_hb_b;resolver_fm_hp_b;resolver_fm_hpu_b;resolver_fm_pb_b;resolver_fm_ub_x;resolver_fm_uhb_xb;resolver_fm_xb_x;resolver_fm_xhp_x;resolver_fm_xp_x;rgbcolor;shell;simpleini;spec;specload;sync;syslog;timeofday;tracer;type;uname;unit;validation;version;wresolver;xmltool
//Which bindings should be added? ALL for all available, DEFAULT
BINDINGS:STRING=MAINTAINED;-EXPERIMENTAL;-DEPRECATED;-ruby;-cpp
//Which plugins should be added? ALL;-EXPERIMENTAL is default.
PLUGINS:STRING=ALL;-EXPERIMENTAL;-ccode;-cpp
//List of plugins removed, only for informational purposes. Modify
// PLUGINS to change the list.
REMOVED_PLUGINS:STRING=blockresolver;ccode;cpptemplate;dbusrecv;doc;email;file;gpgme;internalnotification;iterate;jni;kconfig;length;mozprefs;passwd;ruby;template;toml;xfconf;zeromqrecv;zeromqsend;augeas;crypto;curlget;curlget;gitresolver;lua;xerces;yajl;yamlcpp
// plugins. LIB_SUFFIX is honored.
yaml-cpp_INCLUDE_DIR:PATH=yaml-cpp_INCLUDE_DIR-NOTFOUND
yaml-cpp_LIBRARY:FILEPATH=yaml-cpp_LIBRARY-NOTFOUND
//ADVANCED property for variable: ADDED_BINDINGS
ADDED_BINDINGS-ADVANCED:INTERNAL=1
//ADVANCED property for variable: ADDED_PLUGINS
ADDED_PLUGINS-ADVANCED:INTERNAL=1
//MODIFIED property for variable: BINDINGS
BINDINGS-MODIFIED:INTERNAL=ON
PC_yaml-cpp_CFLAGS:INTERNAL=
PC_yaml-cpp_CFLAGS_I:INTERNAL=
PC_yaml-cpp_CFLAGS_OTHER:INTERNAL=
PC_yaml-cpp_FOUND:INTERNAL=
PC_yaml-cpp_INCLUDEDIR:INTERNAL=
PC_yaml-cpp_LIBDIR:INTERNAL=
PC_yaml-cpp_LIBS:INTERNAL=
PC_yaml-cpp_LIBS_L:INTERNAL=
PC_yaml-cpp_LIBS_OTHER:INTERNAL=
PC_yaml-cpp_LIBS_PATHS:INTERNAL=
PC_yaml-cpp_MODULE_NAME:INTERNAL=
PC_yaml-cpp_PREFIX:INTERNAL=
PC_yaml-cpp_STATIC_CFLAGS:INTERNAL=
PC_yaml-cpp_STATIC_CFLAGS_I:INTERNAL=
PC_yaml-cpp_STATIC_CFLAGS_OTHER:INTERNAL=
PC_yaml-cpp_STATIC_LIBDIR:INTERNAL=
PC_yaml-cpp_STATIC_LIBS:INTERNAL=
PC_yaml-cpp_STATIC_LIBS_L:INTERNAL=
PC_yaml-cpp_STATIC_LIBS_OTHER:INTERNAL=
PC_yaml-cpp_STATIC_LIBS_PATHS:INTERNAL=
PC_yaml-cpp_VERSION:INTERNAL=
PC_yaml-cpp_yaml-cpp_INCLUDEDIR:INTERNAL=
PC_yaml-cpp_yaml-cpp_LIBDIR:INTERNAL=
PC_yaml-cpp_yaml-cpp_PREFIX:INTERNAL=
PC_yaml-cpp_yaml-cpp_VERSION:INTERNAL=
//MODIFIED property for variable: PLUGINS
PLUGINS-MODIFIED:INTERNAL=ON
//ADVANCED property for variable: REMOVED_PLUGINS
REMOVED_PLUGINS-ADVANCED:INTERNAL=1
__pkg_config_checked_PC_yaml-cpp:INTERNAL=1
//ADVANCED property for variable: yaml-cpp_INCLUDE_DIR
yaml-cpp_INCLUDE_DIR-ADVANCED:INTERNAL=1
//ADVANCED property for variable: yaml-cpp_LIBRARY
yaml-cpp_LIBRARY-ADVANCED:INTERNAL=1

And:

# git rev-parse HEAD
4f45d0cba00a5235d188cad3aeaf6bc144d745ff
# git describe --tags
v0.10.0