Compiling 6.12.4 error

ROOT
1

Hi,
I am trying to install root 6.12.4 on my mac

I have
10.13.2 (17C88)
and
Apple LLVM version 9.0.0 (clang-900.0.39.2)
Target: x86_64-apple-darwin17.3.0
Thread model: posix

I did the following

cd ROOT
cmake …/root-6.12.04/
make -j3

This is the error I got

/Users/alhroob/ROOT/include/TMathBase.h:131:10: note: include the header or explicitly provide a declaration for ‘std::abs’
/Users/alhroob/ROOT/include/TMathBase.h:141:18: error: expected unqualified-id
{ return std::signbit(a); }
^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/usr/include/math.h:184:5: note: expanded from macro ‘signbit’
( sizeof(x) == sizeof(float) ? __inline_signbitf((float)(x))
^
In file included from input_line_9:12:
In file included from /Users/alhroob/ROOT/include/TApplication.h:30:
In file included from /Users/alhroob/ROOT/include/TQObject.h:41:
In file included from /Users/alhroob/ROOT/include/TList.h:25:
In file included from /Users/alhroob/ROOT/include/TSeqCollection.h:25:
In file included from /Users/alhroob/ROOT/include/TCollection.h:29:
In file included from /Users/alhroob/ROOT/include/TString.h:26:
/Users/alhroob/ROOT/include/TMathBase.h:144:18: error: expected unqualified-id
{ return std::signbit(a); }
^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/usr/include/math.h:184:5: note: expanded from macro ‘signbit’
( sizeof(x) == sizeof(float) ? __inline_signbitf((float)(x))
^
In file included from input_line_9:12:
In file included from /Users/alhroob/ROOT/include/TApplication.h:30:
In file included from /Users/alhroob/ROOT/include/TQObject.h:41:
In file included from /Users/alhroob/ROOT/include/TList.h:25:
In file included from /Users/alhroob/ROOT/include/TSeqCollection.h:25:
In file included from /Users/alhroob/ROOT/include/TCollection.h:29:
In file included from /Users/alhroob/ROOT/include/TString.h:26:
/Users/alhroob/ROOT/include/TMathBase.h:147:18: error: expected unqualified-id
{ return std::signbit(a); }
^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/usr/include/math.h:184:5: note: expanded from macro ‘signbit’
( sizeof(x) == sizeof(float) ? __inline_signbitf((float)(x))
^
Error: /Users/alhroob/ROOT/core/rootcling_stage1/src/rootcling_stage1: compilation failure (/Users/alhroob/ROOT/lib/libCore41483fa3e1_dictUmbrella.h)
make[2]: *** [core/base/G__Core.cxx] Error 1
make[1]: *** [core/base/CMakeFiles/G__Core.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs…
[ 72%] Built target MetaCling
make: *** [all] Error 2

2

Have you installed XCode and performed the following command?

 xcode-select --install
3

xcode-select --install

xcode-select: error: command line tools are already installed, use “Software Update” to install updates

4

Yes, I had the same issue when updating XCode at one point. I believe I had to install it from a GUI through a ROOT user in the end.

Maybe try this?

5

I did
rm -rf /Library/Developer/CommandLineTools
sudo xcode-select --install
then
cmake -j3

TMathBase.h:144:18: error: expected unqualified-id
{ return std::signbit(a); }

6

For the record, same here after updating to Xcode 9.2. Various xcode-select / GUI reinstall of the tools do not seem to work.

#include <cmath>
int main(int argc, char **argv) {
  return std::signbit(1);
}

does work, on the other hand…

7

Smells like Xcode caching / pch-ing something. I moved /usr/include/math.h to /usr/include/math.h.safe and back, and it magically started to work. Oh, well…

8

magic works! :stuck_out_tongue_winking_eye::

9

Is this the recommended way of doing this ?

Having the same problem here … and even as root I am not allowed to move /usr/include/math.h to another name …

10

I doubt it.

Have you tried using sudo as the root user?

11

Hi,I had this problem and I found the solution on the web, but I forgot it!google the error and you will find the way how to enable "sudo"this will require you to reboot the machine

ksmith
January 19 |

asalzbur:
Is this the recommended way of doing this ?

I doubt it.

asalzbur:
even as root I am not allowed to move /usr/include/math.h to another name …

Have you tried using sudo as the root user?

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In Reply To

asalzbur
January 19 |

Is this the recommended way of doing this ? Having the same problem here … and even as root I am not allowed to move /usr/include/math.h to another name …
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12

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