Fatal error in building process

Hey guys,
I am new here and I have some problems installing ROOT via the instructions on official website(https://root.cern.ch/building-root).
I downloaded the latest ROOT version via Terminal from Github. Steps 2-4 works fine. In Step 5 I get some fatal errors which you can see below.

(work) sven@Svens-MacBook-Air ROOT_1 % sudo cmake --build . -- -j4  
Password:
Scanning dependencies of target VDT
Scanning dependencies of target move_header_core_clib
Scanning dependencies of target move_header_roofit_histfactory
Scanning dependencies of target XROOTD
[  0%] Creating directories for 'VDT'

[...] many lines between those.

**Scanning dependencies of target rootcling_stage1**

[ 76%] Building CXX object core/rootcling_stage1/CMakeFiles/rootcling_stage1.dir/src/rootcling_stage1.cxx.o

[ 76%] **Linking CXX executable src/rootcling_stage1**

[ 76%] Building CXX object core/metacling/src/CMakeFiles/MetaCling.dir/TClingValue.cxx.o

[ 76%] Built target rootcling_stage1

[ 76%] **Generating G__Core.cxx, ../lib/Core.pcm**

While building module 'Core':

While building module 'std' imported from input_line_1:1:

While building module 'Darwin' imported from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/ctype.h:39:

In file included from <module-includes>:1070:

In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk/usr/include/ncurses.h:141:

**/opt/local/include/unctrl.h:61:38:** **error:** **cannot initialize a variable of type 'char *' with an lvalue of type 'char *(chtype)' (aka 'char *(unsigned int)')**

NCURSES_EXPORT(NCURSES_CONST char *) NCURSES_SP_NAME(unctrl) (SCREEN*, chtype);

**^ ~~~~~~**

**/opt/local/include/unctrl.h:61:61:** **error:** **expected ';' after top level declarator**

NCURSES_EXPORT(NCURSES_CONST char *) NCURSES_SP_NAME(unctrl) (SCREEN*, chtype);

**^**

While building module 'Core':

While building module 'std' imported from input_line_1:1:

In file included from <module-includes>:2:

**/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/ctype.h:39:15:** **fatal error:** **could not build module 'Darwin'**

#include_next <ctype.h>

**~~~~~~~~~~~~~^**

**input_line_1:1:10:** **fatal error:** **could not build module 'std'**

#include <new>

**~~~~~~~~^**

Warning in cling::IncrementalParser::CheckABICompatibility():

Failed to extract C++ standard library version.

Warning in cling::IncrementalParser::CheckABICompatibility():

Possible C++ standard library mismatch, compiled with _LIBCPP_ABI_VERSION '1'

Extraction of runtime standard library version was: ''

While building module 'Core':

While building module 'Cling_Runtime' imported from input_line_2:1:

In file included from <module-includes>:1:

**/Users/sven/Python/ROOT_1/etc/cling/Interpreter/RuntimeUniverse.h:26:10:** **fatal error:** **could not build module 'std'**

#include <new>

**~~~~~~~~^**

**/Users/sven/Python/ROOT_1/etc/cling/Interpreter/DynamicExprInfo.h:13:10:** **fatal error:** **could not build module 'std'**

#include <string>

**~~~~~~~~^**

While building module 'Core':

While building module '_Builtin_intrinsics':

In file included from <module-includes>:2:

In file included from /Users/sven/Python/ROOT_1/etc/cling/lib/clang/5.0.0/include/immintrin.h:32:

In file included from /Users/sven/Python/ROOT_1/etc/cling/lib/clang/5.0.0/include/xmmintrin.h:39:

In file included from /Users/sven/Python/ROOT_1/etc/cling/lib/clang/5.0.0/include/mm_malloc.h:27:

In file included from /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/stdlib.h:94:

**/Users/sven/Python/ROOT_1/etc/cling/lib/clang/5.0.0/include/stdlib.h:8:15:** **fatal error:** **could not build module 'Darwin'**

#include_next <stdlib.h>

**~~~~~~~~~~~~~^**

While building module 'Core':

<<< cling interactive line includer >>>: **fatal error:** **could not build module '_Builtin_intrinsics'**

Failed to load module _Builtin_intrinsics

Error: Error loading the default header files.

make[2]: *** [core/G__Core.cxx] Error 1

make[1]: *** [core/CMakeFiles/G__Core.dir/all] Error 2

make[1]: *** Waiting for unfinished jobs....

[ 76%] Built target MetaCling

make: *** [all] Error 2

Do you have any idea what is going wrong there and what could be a solution for this?


ROOT Version: root_v6.20/04
Platform: macOS Catalina Version 10.15.4
Compiler: I’m not sure but I think Clang


Problem solved by installing an older version of ROOT.

Hi,

You have probably to install the latest XCode version and run xcode-select --install as described here:
https://root.cern.ch/build-prerequisites#macosx

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.

For the record, this is another occurrence of V6.22.00 build error on MacOS