Unable to get Phobos working on Ubuntu x64 (Oneiric)

[Kiith-Sa]

Jonathan M Davis wrote:

> On Friday, September 16, 2011 12:47 Kiith-Sa wrote:
>> I've just installed a new system - Ubuntu 11.10 beta x64 and can't get
>> dmd/phobos 2.055 to work.
>> 
>> When I try to compile file hello.d with the following content:
>> 
>> import std.stdio;
>> 
>> void main()
>> {
>> writeln("Hello World!");
>> }
>> 
>> 
>> I get this error:
>> 
>> /usr/lib/gcc/x86_64-linux-
>> gnu/4.6.1/../../../../lib/libphobos2.a(datetime_48b_1ec.o): In function
>> `_D3std8datetime5Clock11currStdTimeFNdNeZl':
>> std/datetime.d:(.text._D3std8datetime5Clock11currStdTimeFNdNeZl+0x1d):
>> undefined reference to `clock_gettime'
>> /usr/lib/gcc/x86_64-linux-
>> gnu/4.6.1/../../../../lib/libphobos2.a(time_c0_4d1.o): In function
>> `_D4core4time12TickDuration12_staticCtor7OFNeZv':
>> src/core/time.d:
(.text._D4core4time12TickDuration12_staticCtor7OFNeZv+0x1f)
>> : undefined reference to `clock_getres'
>> /usr/lib/gcc/x86_64-linux-
>> gnu/4.6.1/../../../../lib/libphobos2.a(time_c0_4d1.o): In function
>> 
`_D4core4time12TickDuration14currSystemTickFNdNeZS4core4time12TickDuration'
>> : src/core/time.d:
>> 
(.text._D4core4time12TickDuration14currSystemTickFNdNeZS4core4time12TickDur
>> ation+0x1f): undefined reference to `clock_gettime'
>> collect2: ld returned 1 exit status
>> --- errorlevel 1
>> 
>> 
>> Nothing else using Phobos compiles either.
>> 
>> I've seen previous related threads. Tried -L-lrt, didn't work.
>> I tried the .deb package for Ubuntu, the binaries shipped
>> in the source archive, as well as compiling Phobos myself (removing
>> DMD/Phobos every time to make sure no files persisted), but nothing
>> helped.
>> 
>> 
>> Has anyone encountered this problem? Did anyone get it to work on Ubuntu
>> (especially 11.10)?
> 
> It's clearly an issue where it can't find librt, since clock_gettime is in
> librt. As long as you didn't mess with dmd.conf, -L-lrt should already be
> given to the compiler, but regardless, if you passed it yourself, it
> should work.
> 
> Are you using a 64-bit binary of dmd or a 32-bit binary? If you're using a
> 32- bit binary (or building for 32-bit with a 64-bit binary), then you're
> going to need the 32-bit libraries for glibc, pthreads, and librt (I don't
> know what packages those are on Ubuntu, but if you have the 32-bit
> libraries installed at all, odds are that those ones are there).
> 
> - Jonathan M Davis

I'm using the 64bit binary. DMD uses the following to link (from verbose 
output):

gcc hello.o -o hello -m64 -Xlinker -L/usr/lib64 -Xlinker -L/usr/lib32 -
Xlinker --no-warn-search-mismatch -Xlinker --export-dynamic -lrt -lphobos2 -
lpthread -lm

librt.so is present in /usr/lib/x86_64-linux-gnu , also copied it to 
/usr/lib . Still the same error.