Always generate a ROOT modulemap and install it.

[Teemperor]

To use C++ modules during runtime we need to generate a modulemap
and install it alongside the ROOT headers. However, right now
we need to turn on cxxmodules to generate a modulemap, which would
force experiments to fulfill all the depndencies that cxxmodules
brings with it (that is, a modern clang that can build ROOT with C++
modules).

This patch untangles the modulemap generation from the cxxmodules
option, so that we always generate a modulemap even when cxxmodules
is turned off. We now also install the modulemap alongside
the ROOT headers.

No functional change for normal ROOT expected here, as the modulemap
will just be ignored without having runtime C++ modules enabled.

[Teemperor]

@phsft-bot build!

[phsft-bot]

Starting build on gcc49/centos7, native/mac1012, gcc49/slc6, gcc62/slc6, native/ubuntu14 with flags -Dvc=OFF -Dimt=ON -Dccache=ON
How to customize builds

[phsft-bot]

Build failed on ubuntu14/native.
See console output.

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

Failing tests:

• projectroot.roottest.root.meta.roottest_root_meta_assertVarOffset_auto

[phsft-bot]

Build failed on centos7/gcc49.
See console output.

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

Failing tests:

• projectroot.roottest.root.dataframe.roottest_root_dataframe_regression_ranges
• projectroot.roottest.root.meta.roottest_root_meta_assertVarOffset_auto

[phsft-bot]

Build failed on slc6/gcc62.
See console output.

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

Failing tests:

• projectroot.roottest.root.meta.roottest_root_meta_assertVarOffset_auto

[phsft-bot]

Build failed on slc6/gcc49.
See console output.

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

Failing tests:

• projectroot.roottest.root.meta.roottest_root_meta_assertVarOffset_auto

[phsft-bot]

Build failed on mac1012/native.
See console output.

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

Failing tests:

• projectroot.roottest.root.meta.roottest_root_meta_assertVarOffset_auto

[phsft-bot]

Starting build on gcc49/centos7, native/mac1012, gcc49/slc6, gcc62/slc6, native/ubuntu14 with flags -Dvc=OFF -Dimt=ON -Dccache=ON
How to customize builds

[phsft-bot]

Starting build on gcc49/centos7, native/mac1012, gcc49/slc6, gcc62/slc6, native/ubuntu14 with flags -Dvc=OFF -Dimt=ON -Dccache=ON -Dcxxmodules=On
How to customize builds

[Teemperor]

@phsft-bot build

[phsft-bot]

Starting build on gcc49/centos7, native/mac1012, gcc49/slc6, gcc62/slc6, native/ubuntu14 with flags -Dvc=OFF -Dimt=ON -Dccache=ON
How to customize builds

[phsft-bot]

Build failed on slc6/gcc49.
See console output.

Errors:

• ninja: error: loading 'build.ninja': No such file or directory

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

[phsft-bot]

Build failed on ubuntu14/native.
See console output.

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

[phsft-bot]

Build failed on slc6/gcc62.
See console output.

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

Failing tests:

• projectroot.roottest.root.dataframe.roottest_root_dataframe_regression_ranges

[vgvassilev]

@phsft-bot build!

[phsft-bot]

Starting build on gcc49/centos7, native/mac1012, gcc49/slc6, gcc62/slc6, native/ubuntu14 with flags -Dvc=OFF -Dimt=ON -Dccache=ON
How to customize builds

[phsft-bot]

Build failed on slc6/gcc49.
See console output.

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

Failing tests:

• projectroot.roottest.root.dataframe.roottest_root_dataframe_regression_ranges

[phsft-bot]

Build failed on ubuntu14/native.
See console output.

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

Failing tests:

• projectroot.roottest.root.dataframe.roottest_root_dataframe_regression_ranges

[phsft-bot]

Build failed on mac1012/native.
See console output.

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

Failing tests:

• projectroot.roottest.root.tree.reader.roottest_root_tree_reader_make
• projectroot.roottest.root.dataframe.roottest_root_dataframe_test_ranges

[vgvassilev]

@phsft-bot build just on slc6/clang_gcc62 with flags -Dvc=OFF -Dimt=ON -Dccache=Off -Dcxxmodules=On

[phsft-bot]

Starting build on clang_gcc62/slc6 with flags -Dvc=OFF -Dimt=ON -Dccache=Off -Dcxxmodules=On
How to customize builds

[phsft-bot]

Build failed on slc6/clang_gcc62.
See console output.

Errors:

• ninja: error: loading 'build.ninja': No such file or directory

Warnings:

• JENKINS-19022: warning: possible memory leak due to Git plugin usage; see: https://wiki.jenkins-ci.org/display/JENKINS/Remove+Git+Plugin+BuildsByBranch+BuildData

[vgvassilev]

@Teemperor could you check the last failure?

[vgvassilev]

Seems and infrastructure issue.