On 05/26/2013 08:10 AM, Ellery Newcomer wrote:
On 05/26/2013 07:55 AM, Jesse Phillips wrote:
On Sunday, 26 May 2013 at 05:01:10 UTC, Ellery Newcomer wrote:
I have a project here which fails on link on ubuntu 12.10.
It give undefined reference errors for functions in libdl and libutil.
For some reason, ld won't cooperate unless you pass -ldl -lutil at the
end of the command string. Holy Ubuntu!
I can't seem to get dmd to do this though. Any suggestions?
I am using the beta, but apparently this is a thing with ubuntu.
It is not uncommon to request the libraries needed to build your app.
Dmd passes a couple/one for phobos dependencies, but other libraries
need to be reqested.
I am doing that.
I think the problem is libpython2.7.a requires libdl and libutil, and ld
requires -ldl and -lutil be positioned after libpython2.7.a, but dmd
very stubbornly arranges them before libpython2.7.a in the call to gcc.
dmd -unittest -property -debug -gc -version=Python_2_7_Or_Later
-version=Python_2_6_Or_Later -version=Python_2_5_Or_Later
-version=Python_2_4_Or_Later -L-ldl
/usr/lib/python2.7/config/libpython2.7.a object_.d -ofobject_.x
-I../../infrastructure/ -L-ldl -L-lutil -v
dmd turns the above into:
gcc object_.o -o object_.x -g -m64 -ldl -ldl -lutil
-L/usr/lib/x86_64-linux-gnu -L/usr/lib/i386-linux-gnu -Xlinker
--no-warn-search-mismatch -Xlinker --export-dynamic
/usr/lib/python2.7/config/libpython2.7.a -l:libphobos2.a -lpthread -lm -lrt
which fails, but
gcc object_.o -o object_.x -g -m64 -ldl -ldl -lutil
-L/usr/lib/x86_64-linux-gnu -L/usr/lib/i386-linux-gnu -Xlinker
--no-warn-search-mismatch -Xlinker --export-dynamic
/usr/lib/python2.7/config/libpython2.7.a -l:libphobos2.a -lpthread -lm
-lrt -ldl -lutil
works.
