On 02/15/2017 09:04 PM, Chuck Atkins wrote:
Hi Adrian,
Hi! and thank you for looking into this problem!

    So, would this imply that cmake is not supported on EL7 because gcc
    does not support cxx11 ?


That's not really what's happening.  CMake is testing the C compiler to
determine whether or not it supports C11 features and the C++ compiler
to see if it supports C++11.  The error messages are expected in many of
the test cases.  Here it's jsut checking to see if what it knows about
the features supported by the specific version of GCC line up correctly
with reality.  i.e. CMake thinks that gcc 4.8.2 supports certain
features so it tests them to make sure.  So it's not saying that CMake
isn't supported, just that the 1 specific test failed for some reason.




    So, does anyone have any idea what is the latest 3.x version that
    can be built on centos 7?


All that being said, I wasn't able to reproduce the error with the
current 3.7.2 release:

[chuck.atkins@deepthought v3.7.2]$ lsb_release -d
Description:    CentOS Linux release 7.3.1611 (Core)
[chuck.atkins@deepthought v3.7.2]$ gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11)
...
[chuck.atkins@deepthought v3.7.2]$ ../../source/v3.7.2/bootstrap
--parallel=28
...
CMake has bootstrapped.  Now run gmake.
[chuck.atkins@deepthought v3.7.2]$ make -j28
...
100%] Built target ctest
[chuck.atkins@deepthought v3.7.2]$ ./bin/ctest -j 28
...
100% tests passed, 0 tests failed out of 431

Label Time Summary:
Label1    =   0.51 sec (1 test)
Label2    =   0.51 sec (1 test)

Total Test time (real) = 247.03 sec
[chuck.atkins@deepthought v3.7.2]$

What specific versionof EL7 are you running and which version of GCC?
the standard ones :
lsb_release -d
Description:    CentOS Linux release 7.3.1611 (Core)

gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11)

i try to create cmake rpm based on the spec of
cmake-3.6.2-6.fc25.src.rpm
from which i removed most of the patches (i just want an rpm for centos 7) and used source of 3.7.2

Thank you!!
Adrian






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