Hi, after building and installing dmd i fail to use generated
executable because they are an undefined symbol.


$ /opt/dmd/bin/dmd -L-lcurl testDelegate.d

$ ./testDelegate
./testDelegate: symbol lookup error:
/opt/dmd/lib/libphobos2.so.0.66: undefined symbol:
curl_version_info

$ ldd ./testDelegate
	linux-vdso.so.1 =>  (0x00007fff2d4e8000)
	libcurl.so.4 => /opt/dmd/lib/libcurl.so.4 (0x00007f82fd060000)
	libdl.so.2 => /lib64/libdl.so.2 (0x00007f82fce58000)
	libphobos2.so.0.66 => /opt/dmd/lib/libphobos2.so.0.66
(0x00007f82fc810000)
	libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f82fc5f0000)
	libm.so.6 => /lib64/libm.so.6 (0x00007f82fc2e8000)
	librt.so.1 => /lib64/librt.so.1 (0x00007f82fc0e0000)
	libc.so.6 => /lib64/libc.so.6 (0x00007f82fbd20000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f82fd288000)

given executable is link with libcurl provided by dmd

when i look into these curl lib they are any curl_version_info
symbol

# readelf -Ws /opt/dmd/lib/libcurl.so.4 | grep curl_version_info

# readelf -Ws /opt/dmd/lib/libcurl_stub.so | grep
curl_version_info

while this symbol exist on libcurl provided by my fedora

#  readelf -Ws /usr/lib64/libcurl.so.4| grep curl_version_info
      346: 0000000000023f20   140 FUNC    GLOBAL DEFAULT   11
curl_version_info

bioinfornatics wrote:

> Hi, after building and installing dmd i fail to use generated executable because they are an undefined symbol.
> 
> 
> $ /opt/dmd/bin/dmd -L-lcurl testDelegate.d
> 
> $ ./testDelegate
> ./testDelegate: symbol lookup error:
> /opt/dmd/lib/libphobos2.so.0.66: undefined symbol:
> curl_version_info
> 
> $ ldd ./testDelegate
> linux-vdso.so.1 =>  (0x00007fff2d4e8000)
> libcurl.so.4 => /opt/dmd/lib/libcurl.so.4 (0x00007f82fd060000)
> libdl.so.2 => /lib64/libdl.so.2 (0x00007f82fce58000)
> libphobos2.so.0.66 => /opt/dmd/lib/libphobos2.so.0.66
> (0x00007f82fc810000)
> libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f82fc5f0000)
> libm.so.6 => /lib64/libm.so.6 (0x00007f82fc2e8000)
> librt.so.1 => /lib64/librt.so.1 (0x00007f82fc0e0000)
> libc.so.6 => /lib64/libc.so.6 (0x00007f82fbd20000)
> /lib64/ld-linux-x86-64.so.2 (0x00007f82fd288000)
> 
> given executable is link with libcurl provided by dmd
> 
> when i look into these curl lib they are any curl_version_info symbol
> 
> # readelf -Ws /opt/dmd/lib/libcurl.so.4 | grep curl_version_info
> 
> # readelf -Ws /opt/dmd/lib/libcurl_stub.so | grep curl_version_info
> 
> while this symbol exist on libcurl provided by my fedora
> 
> #  readelf -Ws /usr/lib64/libcurl.so.4| grep curl_version_info
>        346: 0000000000023f20   140 FUNC    GLOBAL DEFAULT   11
> curl_version_info

You are probably using DMD provided @ dlang.org... That one has issues (curl) on Fedora. DMD built with my SPEC from https://www.gitorious.org/dejan-fedora/dejan-fedora does not have these problems as far as I know.

-- 
http://dejan.lekic.org

On Monday, 26 May 2014 at 10:59:00 UTC, Dejan Lekic wrote:
> bioinfornatics wrote:
>
>> Hi, after building and installing dmd i fail to use generated
>> executable because they are an undefined symbol.
>> 
>> 
>> $ /opt/dmd/bin/dmd -L-lcurl testDelegate.d
>> 
>> $ ./testDelegate
>> ./testDelegate: symbol lookup error:
>> /opt/dmd/lib/libphobos2.so.0.66: undefined symbol:
>> curl_version_info
>> 
>> $ ldd ./testDelegate
>> linux-vdso.so.1 =>  (0x00007fff2d4e8000)
>> libcurl.so.4 => /opt/dmd/lib/libcurl.so.4 (0x00007f82fd060000)
>> libdl.so.2 => /lib64/libdl.so.2 (0x00007f82fce58000)
>> libphobos2.so.0.66 => /opt/dmd/lib/libphobos2.so.0.66
>> (0x00007f82fc810000)
>> libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f82fc5f0000)
>> libm.so.6 => /lib64/libm.so.6 (0x00007f82fc2e8000)
>> librt.so.1 => /lib64/librt.so.1 (0x00007f82fc0e0000)
>> libc.so.6 => /lib64/libc.so.6 (0x00007f82fbd20000)
>> /lib64/ld-linux-x86-64.so.2 (0x00007f82fd288000)
>> 
>> given executable is link with libcurl provided by dmd
>> 
>> when i look into these curl lib they are any curl_version_info
>> symbol
>> 
>> # readelf -Ws /opt/dmd/lib/libcurl.so.4 | grep curl_version_info
>> 
>> # readelf -Ws /opt/dmd/lib/libcurl_stub.so | grep
>> curl_version_info
>> 
>> while this symbol exist on libcurl provided by my fedora
>> 
>> #  readelf -Ws /usr/lib64/libcurl.so.4| grep curl_version_info
>>        346: 0000000000023f20   140 FUNC    GLOBAL DEFAULT   11
>> curl_version_info
>
> You are probably using DMD provided @ dlang.org... That one has issues
> (curl) on Fedora. DMD built with my SPEC from
> https://www.gitorious.org/dejan-fedora/dejan-fedora does not have these
> problems as far as I know.

  yes dejan your rpm works fine that is more to report it. it seem
noone care about my issue.
For me both my dmd and ldc works that was more to prevent bad
experience to new users