[MacPorts] #34171: root: add cling variant

[MacPorts]

#34171: root: add cling variant
--------------------------------------+-------------------------------------
 Reporter:  Deil.Christoph@…          |       Owner:  mattiafrancescomoro@…        
     Type:  enhancement               |      Status:  new                          
 Priority:  Normal                    |   Milestone:                               
Component:  ports                     |     Version:  2.0.4                        
 Keywords:                            |        Port:  root                         
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Comment(by Deil.Christoph@…):

 Ticket #34214 is fixed.

 I tried building root_v5-34-00-patches and root_trunk with this command
 (outside macports, but using the macports llvm / clang):
 {{{
 ./configure --with-llvm-config=/opt/local/bin/llvm-config-mp-3.1 --with-
 clang --enable-cling --with-cc=/opt/local/bin/clang-mp-3.1 --with-
 cxx=/opt/local/bin/clang++-mp-3.1 --with-ld=/opt/local/bin/clang++-mp-3.1
 make
 }}}

 Both ROOT versions fail when trying to create
 core/utils/src/rootcling_tmp.o.

 This is the command and first error for root_v5-34-00-patches:

 {{{
 cp /Users/deil/bin/root/root_v5-34-00-patches/core/utils/src/rootcling.cxx
 core/utils/src/rootcling_tmp.cxx
 bin/rmkdepend -R -fcore/utils/src/rootcling_tmp.d -Y -w 1000 -- -m64 -pipe
 -Wshadow -W -Wall -Woverloaded-virtual -fsigned-char -fno-common -Iinclude
 -pthread -UR__HAVE_CONFIG -DROOTBUILD
 -I/Users/deil/bin/root/root_v5-34-00-patches/core/utils/src
 -I/opt/local/libexec/llvm-3.1/include -D_DEBUG -D_GNU_SOURCE
 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -O3
 -g -fvisibility-inlines-hidden -fno-exceptions -fno-rtti -fno-common
 -Woverloaded-virtual
 -I/Users/deil/bin/root/root_v5-34-00-patches/cint/cling/include
 '-DR__LLVMDIR="/opt/local/libexec/llvm-3.1"' '-DR__CLANG="/opt/local/bin
 /llvm-config-mp-3.1"' -D__cplusplus -- core/utils/src/rootcling_tmp.cxx
 /opt/local/bin/clang++-mp-3.1 -O2 -m64 -pipe -Wshadow -W -Wall
 -Woverloaded-virtual -fsigned-char -fno-common -Iinclude      -pthread
 -UR__HAVE_CONFIG -DROOTBUILD
 -I/Users/deil/bin/root/root_v5-34-00-patches/core/utils/src
 -I/opt/local/libexec/llvm-3.1/include -D_DEBUG -D_GNU_SOURCE
 -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -O3
 -g -fvisibility-inlines-hidden -fno-exceptions -fno-rtti -fno-common
 -Woverloaded-virtual
 -I/Users/deil/bin/root/root_v5-34-00-patches/cint/cling/include
 '-DR__LLVMDIR="/opt/local/libexec/llvm-3.1"' '-DR__CLANG="/opt/local/bin
 /llvm-config-mp-3.1"' -o core/utils/src/rootcling_tmp.o -c
 core/utils/src/rootcling_tmp.cxx
 }}}

 {{{
 core/utils/src/rootcling_tmp.cxx:851:41: error: address expression must be
 an lvalue or a function designator
             if (is_operator_new) return &*iter;
                                         ^~~~~~
 }}}

 For root_trunk I get

 {{{
 make: *** No rule to make target
 `/Users/deil/bin/root/root_trunk/core/utils/src/rootcling_tmp.cxx', needed
 by `core/utils/src/rootcling_tmp.o'.  Stop.
 }}}

 I can try other configure args or post full build logs if it would help.

-- 
Ticket URL: <https://trac.macports.org/ticket/34171#comment:18>
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