On my Ubuntu Server, I can't link any D program which uses
libraries other than Phobos.
Example:
//////////////////////////////
import std.net.curl;
import std.stdio;
void main()
{
writeln(get("dlang.org"));
}
//////////////////////////////
dlang@k3:~/2015-01-25$ dmd -L-lcurl test.d
/usr/local/lib/x86_64-linux-gnu/libphobos2.a(curl.o): In function
`_D3std3net4curl4HTTP19_sharedStaticCtor34FZv':
/usr/local/src/phobos/std/net/curl.d:2503: undefined reference to
`curl_version_info'
/usr/local/lib/x86_64-linux-gnu/libphobos2.a(curl.o): In function
`_D3std3net4curl4Curl19_sharedStaticCtor35FZv':
/usr/local/src/phobos/std/net/curl.d:3497: undefined reference to
`curl_global_init'
/usr/local/lib/x86_64-linux-gnu/libphobos2.a(curl.o): In function
`_D3std3net4curl4Curl19_sharedStaticDtor36FZv':
/usr/local/src/phobos/std/net/curl.d:3503: undefined reference to
`curl_global_cleanup'
[...]
collect2: error: ld returned 1 exit status
--- errorlevel 1
The library (.a and .so) is installed and DMD passes -lcurl to
gcc.
This is what DMD runs:
gcc test.o -o test -m64 -lcurl -L/usr/local/lib/x86_64-linux-gnu
-Xlinker --export-dynamic -l:libphobos2.a -lpthread -lm -lrt
I got the above program to build by editing /etc/dmd.conf and
adding -L-l:libphobos2.a -L-lcurl to DFLAGS. However, this
doesn't help when linking with other D libraries, e.g. when using
Dub.
I believe this problem is documented here:
https://issues.dlang.org/show_bug.cgi?id=7044
https://issues.dlang.org/show_bug.cgi?id=12572
I don't see a workaround that would apply to dub, though.
Is there a fix or workaround? I think this can be fixed in Dub to
make it pass the libraries in the correct order, but I don't
normally use Dub so I'm not sure. I sort of need this to be able
to work on dlang.org - some functionality is only provided by
posix.mak, which doesn't work under Cygwin.
