qt4-mac : DWARF2 debug symbols are disabled with ccache or distcc

[hsivank@…]

qt4-mac does not enable dwarf2 when using ccache or distcc

sudo port -vd install qt4-mac
...
/opt/local/var/macports/build/_opt_ports.git_dports_aqua_qt4-mac/work/qt-everywhere-opensource-src-4.6.0/config.tests/mac/dwarf2.test: line 21: ccache /Developer/usr/bin/llvm-gcc-4.2: No such file or directory
/opt/local/var/macports/build/_opt_ports.git_dports_aqua_qt4-mac/work/qt-everywhere-opensource-src-4.6.0/config.tests/mac/dwarf2.test: line 22: ./xcodeversion: No such file or directory
rm: xcodeversion: No such file or directory
DWARF2 debug symbols disabled.
...

Attached a patch to fix this issue (patch-config.tests-mac-dwarf2.test.diff)

[hsivank@…]

It was previously observed here : ​#19922

[mf2k (Frank Schima)]

Cc Me!

[michaelld (Michael Dickens)]

Is this issue still relevant as of r72571 with qt4-mac being at 4.7.0?

[hsivank@…]

Replying to michaelld@…:

Is this issue still relevant as of r72571 with qt4-mac being at 4.7.0?

Yes

/opt/local/var/macports/build/_opt_MacPort.git_dports_aqua_qt4-mac/work/qt-everywhere-opensource-src-4.7.0/config.tests/mac/dwarf2.test: line 21: ccache /Developer/usr/bin/g++-4.2: No such file or directory
/opt/local/var/macports/build/_opt_MacPort.git_dports_aqua_qt4-mac/work/qt-everywhere-opensource-src-4.7.0/config.tests/mac/dwarf2.test: line 22: ./xcodeversion: No such file or directory
rm: xcodeversion: No such file or directory
DWARF2 debug symbols disabled.

[michaelld (Michael Dickens)]

"svn diff" of 'qt4-mac' Portfile, to add in rudimentary ccache/distcc support

[michaelld (Michael Dickens)]

Can you try out the patch I just attached and see if it works for you? I think this patch will allow ccache/distcc to not error out, but otherwise it will just effect the configure stage during building of QMake and most host-OS testing -- since most of those are compiled directly from scripts (either configure itself or a script that it calls). I do not think this change effects the 'build' stage, since that is accomplished indirectly via use of QMake. So I call the support provided here "rudimentary" -- basically allowing those who wish to use ccache/distcc the ability to do so with qt4-mac as part of an overall chain ports.

BTW> I'm not going to update the other tickets on this subject (#23206, #23208), because it's all the same issue at the programming level.

[hsivank@…]

Hello michaelld your patch works for me ;-)

[michaelld (Michael Dickens)]

Fixed in r73102. ccache works nicely for me!