Different INSTALL-directory structure for different installation methods

ROOT
17

Okay. I just installed ROOT 6.22/00 (which I downloaded from https://github.com/root-project/root/tree/v6-22-00). Here is what I get on 64 bit Fedora 29 running cmake version 3.14.5; gcc version 8.3.1; Python 2.7.17; Python 3.7.5:

FIRST: With "python3 demo.py" gives the following error:

enter "q" to quit: Traceback (most recent call last):
  File "<string>", line 1, in <module>
NameError: name 'execfile' is not defined

enter "q" to quit: q

SECOND: With "python2 demo.py" , I get the following error:

enter "q" to quit: input_line_58:1:64: error: redefinition of 'is_equal'
namespace __cppyy_internal { template<class C1, class C2> bool is_equal(const C1& c1, const C2& c2) { return (bool)(c1 == c2); } }
                                                               ^
input_line_9:1:64: note: previous definition is here
namespace __cppyy_internal { template<class C1, class C2> bool is_equal(const C1& c1, const C2& c2) { return (bool)(c1 == c2); } }
                                                               ^
input_line_59:1:64: error: redefinition of 'is_not_equal'
namespace __cppyy_internal { template<class C1, class C2> bool is_not_equal(const C1& c1, const C2& c2) { return (bool)(c1 != c2); } }
                                                               ^
input_line_10:1:64: note: previous definition is here
namespace __cppyy_internal { template<class C1, class C2> bool is_not_equal(const C1& c1, const C2& c2) { return (bool)(c1 != c2); } }
                                                               ^
 *** Break *** segmentation violation

===========================================================
There was a crash.
This is the entire stack trace of all threads:
===========================================================

Thread 2 (Thread 0x7f51f1728700 (LWP 31810)):
#0  0x00007f520a0fe472 in waitpid () from /lib64/libc.so.6
#1  0x00007f520a07983f in do_system () from /lib64/libc.so.6
#2  0x00007f51fcc00ff3 in TUnixSystem::StackTrace() () from /home/ajay/Downloads/root_6.22/lib/libCore.so
#3  0x00007f51f00a7c5d in (anonymous namespace)::TExceptionHandlerImp::HandleException(int) () from /home/ajay/Downloads/root_6.22/lib/libcppyy_backend3_7.so
#4  0x00007f51fcc030fd in TUnixSystem::DispatchSignals(ESignals) () from /home/ajay/Downloads/root_6.22/lib/libCore.so
#5  <signal handler called>
#6  0x00007f520a49019c in PyUnicodeUCS4_Compare () from /lib64/libpython2.7.so.1.0
#7  0x00007f520a490001 in PyUnicodeUCS4_RichCompare () from /lib64/libpython2.7.so.1.0
#8  0x00007f520a46f773 in try_rich_compare () from /lib64/libpython2.7.so.1.0
#9  0x00007f520a46ebe6 in PyObject_RichCompare () from /lib64/libpython2.7.so.1.0
#10 0x00007f520a46ea43 in PyObject_RichCompareBool () from /lib64/libpython2.7.so.1.0
#11 0x00007f520a4599bd in list_contains () from /lib64/libpython2.7.so.1.0
#12 0x00007f51f01b5417 in TPyClassGenerator::GetClass(char const*, bool, bool) () from /home/ajay/Downloads/root_6.22/lib/libROOTTPython.so
#13 0x00007f51fcba3887 in TClass::LoadClassCustom(char const*, bool) () from /home/ajay/Downloads/root_6.22/lib/libCore.so
#14 0x00007f51fcbad227 in TClass::GetClass(char const*, bool, bool) () from /home/ajay/Downloads/root_6.22/lib/libCore.so
#15 0x00007f51fcbadecc in TClass::InheritsFrom(char const*) const () from /home/ajay/Downloads/root_6.22/lib/libCore.so
#16 0x00007f51eb77ab48 in TASImage::InitVisual() () from /home/ajay/Downloads/root_6.22/lib/libASImage.so
#17 0x00007f51eb78078e in TASImage::ReadImage(char const*, TImage::EImageFileTypes) () from /home/ajay/Downloads/root_6.22/lib/libASImage.so
#18 0x00007f51f0d47000 in TImage::Open(char const*, TImage::EImageFileTypes) () from /home/ajay/Downloads/root_6.22/lib/libGraf.so
#19 0x00007f51ebe31784 in TGPicturePool::GetPicture(char const*) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#20 0x00007f51ebe384d2 in TGHScrollBar::TGHScrollBar(TGWindow const*, unsigned int, unsigned int, unsigned int, unsigned long) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#21 0x00007f51ebd89ad9 in TGCanvas::TGCanvas(TGWindow const*, unsigned int, unsigned int, unsigned int, unsigned long) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#22 0x00007f51ebeac7d2 in TRootCanvas::CreateCanvas(char const*) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#23 0x00007f51ebead53c in TRootCanvas::TRootCanvas(TCanvas*, char const*, int, int, unsigned int, unsigned int) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#24 0x00007f51ebeb9d2e in TRootGuiFactory::CreateCanvasImp(TCanvas*, char const*, int, int, unsigned int, unsigned int) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#25 0x00007f51f0e5f3f7 in TCanvas::Constructor(char const*, char const*, int, int, int, int) () from /home/ajay/Downloads/root_6.22/lib/libGpad.so
#26 0x00007f51f0e6151f in TCanvas::TCanvas(char const*, char const*, int, int, int, int) () from /home/ajay/Downloads/root_6.22/lib/libGpad.so
#27 0x00007f51fc92509c in ?? ()
#28 0x00007f51000001f4 in ?? ()
#29 0x000000000000024b in ?? ()
#30 0x000000000000024b in ?? ()
#31 0x00007f51ec0890e0 in ?? ()
#32 0x00007f51f0e61430 in ?? () from /home/ajay/Downloads/root_6.22/lib/libGpad.so
#33 0x00007f51ec0890e0 in ?? ()
#34 0x00007f51ec0011a0 in ?? ()
#35 0x58e3147e98638600 in ?? ()
#36 0x00007f51f1725908 in ?? ()
#37 0x00007f51f1725880 in ?? ()
#38 0x0000000600000006 in ?? ()
#39 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f520a033580 (LWP 31780)):
#0  0x00007f520a122f94 in read () from /lib64/libc.so.6
#1  0x00007f520a0b2c98 in __GI__IO_file_underflow () from /lib64/libc.so.6
#2  0x00007f520a0b3dd6 in _IO_default_uflow () from /lib64/libc.so.6
#3  0x00007f520a0a722a in _IO_getline_info () from /lib64/libc.so.6
#4  0x00007f520a0a623f in fgets () from /lib64/libc.so.6
#5  0x00007f520a3ed4bc in my_fgets () from /lib64/libpython2.7.so.1.0
#6  0x00007f520a3ed375 in PyOS_StdioReadline () from /lib64/libpython2.7.so.1.0
#7  0x00007f520a3ed2e2 in PyOS_Readline () from /lib64/libpython2.7.so.1.0
#8  0x00007f520a41d16b in builtin_raw_input.cold () from /lib64/libpython2.7.so.1.0
#9  0x00007f520a516915 in PyEval_EvalFrameEx () from /lib64/libpython2.7.so.1.0
#10 0x00007f520a517162 in PyEval_EvalCodeEx () from /lib64/libpython2.7.so.1.0
#11 0x00007f520a5173fd in PyEval_EvalCode () from /lib64/libpython2.7.so.1.0
#12 0x00007f520a51d4bf in run_mod () from /lib64/libpython2.7.so.1.0
#13 0x00007f520a51d464 in PyRun_FileExFlags () from /lib64/libpython2.7.so.1.0
#14 0x00007f520a51d27c in PyRun_SimpleFileExFlags () from /lib64/libpython2.7.so.1.0
#15 0x00007f520a522f08 in Py_Main () from /lib64/libpython2.7.so.1.0
#16 0x00007f520a058413 in __libc_start_main () from /lib64/libc.so.6
#17 0x0000561fd85110ae in _start ()
===========================================================
The lines below might hint at the cause of the crash.
You may get help by asking at the ROOT forum http://root.cern.ch/forum
Only if you are really convinced it is a bug in ROOT then please submit a
report at http://root.cern.ch/bugs Please post the ENTIRE stack trace
from above as an attachment in addition to anything else
that might help us fixing this issue.
===========================================================
#6  0x00007f520a49019c in PyUnicodeUCS4_Compare () from /lib64/libpython2.7.so.1.0
#7  0x00007f520a490001 in PyUnicodeUCS4_RichCompare () from /lib64/libpython2.7.so.1.0
#8  0x00007f520a46f773 in try_rich_compare () from /lib64/libpython2.7.so.1.0
#9  0x00007f520a46ebe6 in PyObject_RichCompare () from /lib64/libpython2.7.so.1.0
#10 0x00007f520a46ea43 in PyObject_RichCompareBool () from /lib64/libpython2.7.so.1.0
#11 0x00007f520a4599bd in list_contains () from /lib64/libpython2.7.so.1.0
#12 0x00007f51f01b5417 in TPyClassGenerator::GetClass(char const*, bool, bool) () from /home/ajay/Downloads/root_6.22/lib/libROOTTPython.so
#13 0x00007f51fcba3887 in TClass::LoadClassCustom(char const*, bool) () from /home/ajay/Downloads/root_6.22/lib/libCore.so
#14 0x00007f51fcbad227 in TClass::GetClass(char const*, bool, bool) () from /home/ajay/Downloads/root_6.22/lib/libCore.so
#15 0x00007f51fcbadecc in TClass::InheritsFrom(char const*) const () from /home/ajay/Downloads/root_6.22/lib/libCore.so
#16 0x00007f51eb77ab48 in TASImage::InitVisual() () from /home/ajay/Downloads/root_6.22/lib/libASImage.so
#17 0x00007f51eb78078e in TASImage::ReadImage(char const*, TImage::EImageFileTypes) () from /home/ajay/Downloads/root_6.22/lib/libASImage.so
#18 0x00007f51f0d47000 in TImage::Open(char const*, TImage::EImageFileTypes) () from /home/ajay/Downloads/root_6.22/lib/libGraf.so
#19 0x00007f51ebe31784 in TGPicturePool::GetPicture(char const*) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#20 0x00007f51ebe384d2 in TGHScrollBar::TGHScrollBar(TGWindow const*, unsigned int, unsigned int, unsigned int, unsigned long) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#21 0x00007f51ebd89ad9 in TGCanvas::TGCanvas(TGWindow const*, unsigned int, unsigned int, unsigned int, unsigned long) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#22 0x00007f51ebeac7d2 in TRootCanvas::CreateCanvas(char const*) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#23 0x00007f51ebead53c in TRootCanvas::TRootCanvas(TCanvas*, char const*, int, int, unsigned int, unsigned int) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#24 0x00007f51ebeb9d2e in TRootGuiFactory::CreateCanvasImp(TCanvas*, char const*, int, int, unsigned int, unsigned int) () from /home/ajay/Downloads/root_6.22/lib/libGui.so
#25 0x00007f51f0e5f3f7 in TCanvas::Constructor(char const*, char const*, int, int, int, int) () from /home/ajay/Downloads/root_6.22/lib/libGpad.so
#26 0x00007f51f0e6151f in TCanvas::TCanvas(char const*, char const*, int, int, int, int) () from /home/ajay/Downloads/root_6.22/lib/libGpad.so
#27 0x00007f51fc92509c in ?? ()
#28 0x00007f51000001f4 in ?? ()
#29 0x000000000000024b in ?? ()
#30 0x000000000000024b in ?? ()
#31 0x00007f51ec0890e0 in ?? ()
#32 0x00007f51f0e61430 in ?? () from /home/ajay/Downloads/root_6.22/lib/libGpad.so
#33 0x00007f51ec0890e0 in ?? ()
#34 0x00007f51ec0011a0 in ?? ()
#35 0x58e3147e98638600 in ?? ()
#36 0x00007f51f1725908 in ?? ()
#37 0x00007f51f1725880 in ?? ()
#38 0x0000000600000006 in ?? ()
#39 0x0000000000000000 in ?? ()

===========================================================
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "demoshelp.py", line 16, in <module>
    chelp = TCanvas( 'chelp', 'Help to run demos', 200, 10, 700, 500 )
TypeError: none of the 5 overloaded methods succeeded. Full details:
  TCanvas::TCanvas(bool build = kTRUE) =>
    TypeError: takes at most 1 arguments (6 given)
  TCanvas::TCanvas(const char* name, const char* title, int ww, int wh) =>
    TypeError: takes at most 4 arguments (6 given)
  TCanvas::TCanvas(const char* name, const char* title, int wtopx, int wtopy, int ww, int wh) =>
    SegmentationViolation: segfault in C++; program state was reset
  TCanvas::TCanvas(const char* name, int ww, int wh, int winid) =>
    TypeError: takes at most 4 arguments (6 given)
  TCanvas::TCanvas(const char* name, const char* title = "", int form = 1) =>
    TypeError: takes at most 3 arguments (6 given)
https://github.com/root-project/root/tree/v6-22-00https://github.com/root-project/root/tree/v6-22-00

Is this a known bug or I am doing something wrong? Or some package incompatibility issue?

18
19

The demo.py tutorial is currently not working in the new PyROOT, as discussed in the post referenced by @Wile_E_Coyote (actually the first error you see in Python3 is because of a Python2-Python3 incompatibility).

Just to verify that the installation is working, can you try to run import ROOT from from Python2 and Python3?

20

Since both the versions of python were not working on simultaneous installation, I now have configured ROOT fresh with only Python2. Therefore, I won’t be able to test what you are asking.

But, my guess is that import ROOT should work. There was no problem with the installation, only running pyroot is the issue.

21

That was actually my intention, to test PyROOT: by running import ROOT from Python, we can check if PyROOT is (minimally) working. It might be that your dual installation was ok, but you hit the problem with that failing tutorial.

22

@etejedor As already explicitly said in the “Python in ROOT 6.22” thread:

23

@etejedor : As requested by you, I just did a fresh download and installation as:

cmake -DCMAKE_INSTALL_PREFIX=../root_v62301-g727e879 -DPython3_EXECUTABLE=/usr/bin/python3 -DPython2_EXECUTABLE=/usr/bin/python2 -Dall=ON -Dfortran=OFF -Druntime_cxxmodules=OFF ../root-g727e879

followed by "cmake --build . --target install -- -j8".

And, as I had guessed, there is no problem with the installation. Please see below:

$ python2
Python 2.7.18 (default, Apr 20 2020, 00:00:00) 
[GCC 10.0.1 20200328 (Red Hat 10.0.1-0.11)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import ROOT
>>> exit()

$ python3
Python 3.8.3 (default, May 15 2020, 00:00:00) 
[GCC 10.1.1 20200507 (Red Hat 10.1.1-1)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import ROOT
>>> exit()

$ root -l
root [0] gROOT->GetGitCommit()
(const char *) "v6-23-01-462-g727e879641"
root [1]

Please note that, I am still a novice and consider the tutorials as the first place to learn ROOT and its features.

24

Hi,

Ok, that’s good. For what concerns the tutorials, we’ll fix the failing ones asap. Please work on the ones that are ok for now (which should be most of them).

25

As requested by @Wile_E_Coyote in a private message, and regarding the python2 error reported (redefinition in the _cppyy_internal namespace) I confirm I can reproduce it. That error indicates that libcppyy is being loaded twice. By having a look at the code of demo.py it seems that running TPython commands from Python is triggering that second load. I need to have a closer look to confirm, this is also https://sft.its.cern.ch/jira/browse/ROOT-10844 .

26

@Wile_E_Coyote @eguiraud

With the following build

cmake -DCMAKE_INSTALL_PREFIX=../root_v62301-g727e879 -DPython3_EXECUTABLE=/usr/bin/python3 -DPython2_EXECUTABLE=/usr/bin/python2 -Dall=ON -Dfortran=OFF -Druntime_cxxmodules=OFF ../root-g727e879

I am NOT getting cling. As you will see that I am using -Dall=ON.

"root-config --has-cling" gives "no".

What is going on?

27

I can’t say, can you copy-paste the full output of the cmake configuration please?

Actually, do you actually not have cling? My build also reports no, so that value might be wrong (i.e. could be a bug or non-intuitive behavior on the part of root-config --has-cling, will have to investigate). Can you start the ROOT prompt with root and type C++ code in there?

EDIT: nevermind root-config --has-whatever, it prints no for anything that is not listed in root-config --features. Super weird behavior.

28

It seems it is working. Here is the output of root-config --config

BLAS_openblas_LIBRARY=/usr/lib64/libopenblas.so Backtrace_INCLUDE_DIR=/usr/include CLANG_EXECUTABLE_VERSION=5.0 CMAKE_CACHE_MAJOR_VERSION=3 CMAKE_CACHE_MINOR_VERSION=17 CMAKE_CACHE_PATCH_VERSION=3 DL_LIBRARY_PATH=/usr/lib64/libdl.so FFTW_INCLUDE_DIR=/usr/include FFTW_LIBRARY=/usr/lib64/libfftw3.so FREETYPE_INCLUDE_DIR_freetype2=/usr/include/freetype2 FREETYPE_INCLUDE_DIR_ft2build=/usr/include/freetype2 FREETYPE_LIBRARY_RELEASE=/usr/lib64/libfreetype.so FTGL_INCLUDE_DIR=/opt/root_6.23.01_b3ecdf6/graf3d/ftgl/inc Fontconfig_INCLUDE_DIR=/usr/include Fontconfig_LIBRARY=/usr/lib64/libfontconfig.so GLEW_INCLUDE_DIR=/usr/include GLEW_SHARED_LIBRARY_RELEASE=/usr/lib64/libGLEW.so GSL_CBLAS_LIBRARY=/usr/lib64/libgslcblas.so GSL_CBLAS_LIBRARY_DEBUG=/usr/lib64/libgslcblas.so GSL_INCLUDEDIR=/usr/include GSL_INCLUDE_DIR=/usr/include GSL_INCLUDE_DIRS=/usr/include GSL_LIBRARY=/usr/lib64/libgsl.so GSL_LIBRARY_DEBUG=/usr/lib64/libgsl.so GSL_VERSION=2.6 JPEG_INCLUDE_DIR=/usr/include JPEG_LIBRARY=/usr/lib64/libjpeg.so JPEG_LIBRARY_RELEASE=/usr/lib64/libjpeg.so LIBCLANG_LIBRARY_VERSION=5.0 LIBLZMA_INCLUDE_DIR=/usr/include LIBLZMA_LIBRARY=/usr/lib64/liblzma.so LIBLZMA_LIBRARY_RELEASE=/usr/lib64/liblzma.so LIBXML2_INCLUDE_DIR=/usr/include/libxml2 LIBXML2_LIBRARY=/usr/lib64/libxml2.so LLVM_DYLIB_SYMBOL_VERSIONING=OFF LLVM_INCLUDE_EXAMPLES=OFF LLVM_INCLUDE_RUNTIMES=ON LLVM_INCLUDE_TOOLS=ON LLVM_INCLUDE_UTILS=ON LLVM_VERSION_PRINTER_SHOW_HOST_TARGET_INFO=ON LZ4_INCLUDE_DIR=/opt/root_6.23.01_b3ecdf6/builtins/lz4 LZ4_INCLUDE_DIRS=/opt/root_6.23.01_b3ecdf6/builtins/lz4 LZ4_LIBRARIES=LZ4::LZ4 LZ4_LIBRARY=$<TARGET_FILE:lz4> LZ4_VERSION=1.9.2 LZ4_VERSION_STRING=1.9.2 OPENGL_EGL_INCLUDE_DIR=/usr/include OPENGL_GLX_INCLUDE_DIR=/usr/include OPENGL_INCLUDE_DIR=/usr/include OPENGL_egl_LIBRARY=/usr/lib64/libEGL.so OPENGL_glu_LIBRARY=/usr/lib64/libGLU.so OPENGL_glx_LIBRARY=/usr/lib64/libGLX.so OPENGL_opengl_LIBRARY=/usr/lib64/libOpenGL.so OPENSSL_CRYPTO_LIBRARY=/usr/lib64/libcrypto.so OPENSSL_INCLUDE_DIR=/usr/include OPENSSL_SSL_LIBRARY=/usr/lib64/libssl.so PCRE_INCLUDE_DIR=/usr/include PCRE_PCRE_LIBRARY_DEBUG=/usr/lib64/libpcre.so PCRE_PCRE_LIBRARY_RELEASE=/usr/lib64/libpcre.so PC_LIBXML_INCLUDEDIR=/usr/include PC_LIBXML_INCLUDE_DIRS=/usr/include/libxml2 PC_LIBXML_LIBRARIES=xml2 PC_LIBXML_STATIC_INCLUDE_DIRS=/usr/include/libxml2 PC_LIBXML_VERSION=2.9.10 PC_SQLITE_INCLUDEDIR=/usr/include PC_SQLITE_LIBRARIES=sqlite3 PC_SQLITE_VERSION=3.32.2 PKG_FONTCONFIG_INCLUDEDIR=/usr/include PKG_FONTCONFIG_VERSION=2.13.92 PNG_LIBRARY=/usr/lib64/libpng.so PNG_LIBRARY_RELEASE=/usr/lib64/libpng.so PNG_PNG_INCLUDE_DIR=/usr/include RT_LIBRARY=/usr/lib64/librt.so R_INCLUDE_DIR=/usr/lib64/R/include R_LIBRARY=/usr/lib64/R/lib/libR.so SQLITE_INCLUDE_DIR=/usr/include SQLITE_LIBRARIES=/usr/lib64/libsqlite3.so TIFF_INCLUDE_DIR=/usr/include TIFF_LIBRARY=/usr/lib64/libtiff.so TIFF_LIBRARY_RELEASE=/usr/lib64/libtiff.so UUID_INCLUDE_DIR=/usr/include VDT_INCLUDE_DIR=/opt/root_build/ginclude X11_ICE_INCLUDE_PATH=/usr/include X11_SM_INCLUDE_PATH=/usr/include X11_X11_INCLUDE_PATH=/usr/include X11_XShm_INCLUDE_PATH=/usr/include X11_XSync_INCLUDE_PATH=/usr/include X11_Xaccessstr_INCLUDE_PATH=/usr/include X11_Xau_INCLUDE_PATH=/usr/include X11_Xcomposite_INCLUDE_PATH=/usr/include X11_Xcursor_INCLUDE_PATH=/usr/include X11_Xdamage_INCLUDE_PATH=/usr/include X11_Xext_INCLUDE_PATH=/usr/include X11_Xfixes_INCLUDE_PATH=/usr/include X11_Xft_INCLUDE_PATH=/usr/include X11_Xi_INCLUDE_PATH=/usr/include X11_Xinerama_INCLUDE_PATH=/usr/include X11_Xkb_INCLUDE_PATH=/usr/include X11_Xkblib_INCLUDE_PATH=/usr/include X11_Xlib_INCLUDE_PATH=/usr/include X11_Xmu_INCLUDE_PATH=/usr/include X11_Xpm_INCLUDE_PATH=/usr/include X11_Xrandr_INCLUDE_PATH=/usr/include X11_Xrender_INCLUDE_PATH=/usr/include X11_Xshape_INCLUDE_PATH=/usr/include X11_Xt_INCLUDE_PATH=/usr/include X11_Xtst_INCLUDE_PATH=/usr/include X11_Xutil_INCLUDE_PATH=/usr/include X11_Xv_INCLUDE_PATH=/usr/include X11_dpms_INCLUDE_PATH=/usr/include ZLIB_INCLUDE_DIR=/usr/include ZLIB_LIBRARY_RELEASE=/usr/lib64/libz.so ZSTD_INCLUDE_DIR=/opt/root_6.23.01_b3ecdf6/builtins/zstd ZSTD_INCLUDE_DIRS=/opt/root_6.23.01_b3ecdf6/builtins/zstd ZSTD_LIBRARIES=ZSTD::ZSTD ZSTD_LIBRARY=$<TARGET_FILE:ZSTD> ZSTD_VERSION=1.4.0 ZSTD_VERSION_STRING=1.4.0 xxHash_INCLUDE_DIR=/opt/root_6.23.01_b3ecdf6/builtins/xxhash xxHash_INCLUDE_DIRS=/opt/root_6.23.01_b3ecdf6/builtins/xxhash xxHash_LIBRARIES=xxHash::xxHash xxHash_LIBRARY=$<TARGET_FILE:xxhash> xxHash_VERSION=0.6.4 xxHash_VERSION_STRING=0.6.4

root-config --features gives the following:

cxx11 asimage builtin_clang builtin_ftgl builtin_gl2ps builtin_llvm builtin_lz4 builtin_tbb builtin_unuran builtin_vdt builtin_veccore builtin_xrootd builtin_xxhash builtin_zstd cefweb clad cuda cudnn dataframe exceptions fftw3 gdml http imt mathmore memstat mlp minuit2 opengl pyroot qt5web roofit shadowpw shared sqlite ssl tmva tmva-cpu spectrum unuran vmc vdt veccore x11 xml xrootd

Again no cling

29

Actually, it seems to me that this is the expected behavior … root-config --features returns a string with all compiled-in features and root-config --has-whatever returns yes / no depending if whatever is actually compiled-in (can easily be tested from e.g. shell scripts).

30

Without cling, you wouldn’t be able to finish ROOT compilation correctly. cling is always there.

Absolutely – still weird.

31

So, shall I just ignore this. Actually, I have problem adding two TH1F histograms in TBrowser.

After opening a ROOT file in the TBrowser, I select one of the histograms and then right-click to Add, I get the following warning:

Warning in <TRootContextMenu::Dialog>: data type is not basic type, assuming (int)

Following this, when I write the name of the same histogram in both the places of resulting panel, then I get the following error:

Error in <TClingCallFunc::IFacePtr(kind)>: Attempt to get interface while invalid.
Error in <TClingCallFunc::Exec(address, interpVal)>: Called with no wrapper, not implemented!

Am I doing anything fundamentally wrong?

You can use histograms from this file: CL16.root (65.9 KB)

32

Yes, absolutely, there is nothing that points at a problem.

I think this can be safely ignored, although we shouldn’t be printing warnings like that. This is now ROOT-10883.

Uhm that’s not ok, @bellenot might know the cause and/or a fix.

33

I have created a new Topic for this problem. Please check: Problem adding histograms using TBrowser

34

@etejedor

The link https://github.com/root-project/web/blob/gh-pages/install/build_from_source.md#root-python-and-pyroot is broken.

Do you have the new location?

35

Hi,
not Enric, but I can provide a new, more stable link: https://root.cern/install/build_from_source/#root-python-and-pyroot

Cheers,
Enrico

36

Thanks!

I was actually looking for more elaborate description which was earlier available at ROOT git website