Hi There have issues building mixxx on OS X Mavericks with external libraries from homebrew: our build configuration uses libstdc++ (gcc) by default, but libraries we link to are linked with libc++ (clang). These two libraries are incompatible in same binary, and homebrew new seems to compile all new libraries with clang and libc++.
BTW, it seems it’s not enough to set -mmacosx-version-min=10.9 in CCFLAGS,
stdlib=libc++ is also required in LDFLAGS.
With attached patch these options can be set. The libc++ flag can only be set
when -mmacosx-version-min= is >=10.7 so I check this as well, and use 10.9 as
default if you pass only stdlib=libc++ omitting explicity setting
macosx-version-min=10.9.
Examples:
- scons
Compile as usual with no new arguments, implicit settings
macosx-version-min=10.5 and stdlib=libstdc++
- scons stdlib=libc++
Compile with macosx-version-min=10.9 and stdlib=libc++
- scons stdlib=libc++ macosx-version-min=10.7
Compile with clang libc++ for minimum OS X version 10.7
After this patch and using Qt4 HEAD (see previous message why Qt5 compile is
right now broken), I don’t get any of the previous build errors, so the C++
linker issue seems to be fixed, but I do get new errors:
duplicate symbol __ZN16PerformanceTimer5startEv in:
osx64_build/util/performancetimer.o
osx64_build/util/threadcputimer.o
duplicate symbol __ZNK16PerformanceTimer7elapsedEv in:
osx64_build/util/performancetimer.o
osx64_build/util/threadcputimer.o
duplicate symbol __ZN16PerformanceTimer7restartEv in:
osx64_build/util/performancetimer.o
osx64_build/util/threadcputimer.o
duplicate symbol __ZN16PerformanceTimer10differenceEPS_ in:
osx64_build/util/performancetimer.o
osx64_build/util/threadcputimer.o
No idea where THESE are coming from.
I attach the change in a patch file instead of git branch, because my personal
fork branch is further away from master than this and it’s easy enough change
to apply as single patch. If you still wish to get it from a branch and merge
request say so and I’ll do it that way ...
*hile*
osx-build-fix.diff
Description: Binary data
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