[dmd-internals] DMD Build Process + Ubuntu

[Brad Roberts]

Ok, if libstdc++ isn't being found, you're missing a key element of a working
gcc c++ compiler somehow.

>From my 64bit dev box:
$ ls -1 /var/lib/dpkg/info/*++*.list
/var/lib/dpkg/info/g++-4.4.list
/var/lib/dpkg/info/g++-4.4-multilib.list
/var/lib/dpkg/info/g++-4.5.list
/var/lib/dpkg/info/g++-4.5-multilib.list
/var/lib/dpkg/info/g++.list
/var/lib/dpkg/info/g++-multilib.list
/var/lib/dpkg/info/lib32stdc++6.list
/var/lib/dpkg/info/libstdc++6-4.4-dev.list
/var/lib/dpkg/info/libstdc++6-4.5-dev.list
/var/lib/dpkg/info/libstdc++6.list

My next guess is that you're missing a libstdc++ -dev package.  But if that was
the case, you ought to have had much larger problems building due to a lack of
c++ header files.

In case it's not clear, dmd does 'just build' for me running unbuntu maverick on
an x86-64 bit box.  No hacks to any parts of the dmd makefile or souce code
required.  Just a working c++ compiler.

On 1/2/2011 1:28 PM, David Simcha wrote:
> Nope.
> 
> 1.  That package was already installed.
> 
> 2.  I also installed it for a few other versions of GCC just to see if that helped.
> 
> 3.  Using MODEL=-m64 should make multilib irrelevant.  The build fails
> regardless of which model I build with.
> 
> On 1/2/2011 4:15 PM, Brad Roberts wrote:
>> I suspect you're missing the 32bit multilib bits
>>
>> apt-get install g++-multilib
>>
>> That will likely pull in all the packages you need.
>>
>> On 1/2/2011 1:06 PM, David Simcha wrote:
>>> Error message I receive doing a make -flinux.mak on a Ubuntu 10.10 64-bit
>>> installation:
>>>
>>> /usr/bin/ld: cannot find -lstdc++
>>>
>>> This happens whether I build DMD as a 32- or 64-bit binary.  I know I managed to
>>> fix this somehow previously, probably by changing the makefile to point to a
>>> specific libstdc++.  However, I'm sure I have libstdc++ installed via Ubuntu's
>>> package manager (the default, not sure of the details), and the build process
>>> really needs to "just work" on standard installs of popular distros.
>>>
>>> --David Simcha
>>>