digitalmars.D.learn - How to link to libdl under linux

MrSmith (19/19) Dec 15 2013 I am trying to compile my program which uses derelict under

Danny Arends (8/27) Dec 15 2013 Pass it depending if you use rdmd or dmd

Jacob Carlborg (4/8) Dec 15 2013 It's -L-ldl regardless of it's rdmd or dmd.

MrSmith (20/29) Dec 16 2013 now i'm getting this error:

Mike Parker (4/24) Dec 16 2013 You're still not linking ld properly. It would help tremendously if you

MrSmith (69/73) Dec 16 2013 Oh, right.

Mike Parker (21/85) Dec 16 2013 For starters, remove "/usr/lib32/libdl.a". All you need is -L-ldl. The
Marco Leise (33/112) Dec 16 2013 Do you have the 32-bit version of libdl installed?

MrSmith (59/59) Dec 17 2013 Eventually i have lot of time to answer.

MrSmith (50/50) Dec 19 2013 Still need help. I've tried compiling a little test project with

Jacob Carlborg (5/8) Dec 19 2013 The -of flag tells the compiler which name to use for executable.

MrSmith (5/7) Dec 19 2013 Yep, but why it is used twice?

MrSmith (3/20) Dec 19 2013 Turns out, dub includes actual dependencies source files into
Xavier Bigand (7/55) Dec 19 2013 I use pragma(lib, "dl"), but it doesn't work with DUB cause it separate

MrSmith (1/1) Dec 20 2013 -L-ldl do not work but pragma(lib, "dl"); works! Wtf?

"MrSmith" <mrsmith33 yandex.ru> writes:

I am trying to compile my program which uses derelict under 
ubuntu 13.10. DerelictUtil needs access to dl library. Simply 
providing libdl.a as parameter to compiler doesn't work.

deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_416_4ee.o): 
In function `_D8derelict4util9sharedlib13LoadSharedLibFAyaZPv':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:60: 
warning: Using 'dlopen' in statically linked applications 
requires at runtime the shared libraries from the glibc version 
used for linking
/usr/lib32/libdl.a(dlopen.o): In function `dlopen':
(.text+0x1b): undefined reference to `__dlopen'
/usr/lib32/libdl.a(dlclose.o): In function `dlclose':
(.text+0x1): undefined reference to `__dlclose'
/usr/lib32/libdl.a(dlsym.o): In function `dlsym':
(.text+0x1b): undefined reference to `__dlsym'
/usr/lib32/libdl.a(dlerror.o): In function `dlerror':
(.text+0x1): undefined reference to `__dlerror'
collect2: error: ld returned 1 exit status
--- errorlevel 1

Dec 15 2013

"Danny Arends" <Danny.Arends gmail.com> writes:

On Sunday, 15 December 2013 at 21:38:37 UTC, MrSmith wrote:
 I am trying to compile my program which uses derelict under 
 ubuntu 13.10. DerelictUtil needs access to dl library. Simply 
 providing libdl.a as parameter to compiler doesn't work.

 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_416_4ee.o): 
 In function `_D8derelict4util9sharedlib13LoadSharedLibFAyaZPv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:60: 
 warning: Using 'dlopen' in statically linked applications 
 requires at runtime the shared libraries from the glibc version 
 used for linking
 /usr/lib32/libdl.a(dlopen.o): In function `dlopen':
 (.text+0x1b): undefined reference to `__dlopen'
 /usr/lib32/libdl.a(dlclose.o): In function `dlclose':
 (.text+0x1): undefined reference to `__dlclose'
 /usr/lib32/libdl.a(dlsym.o): In function `dlsym':
 (.text+0x1b): undefined reference to `__dlsym'
 /usr/lib32/libdl.a(dlerror.o): In function `dlerror':
 (.text+0x1): undefined reference to `__dlerror'
 collect2: error: ld returned 1 exit status
 --- errorlevel 1

Pass it depending if you use rdmd or dmd

-L-ldl

or

-ldl

Gr,
Danny Arends
http://www.dannyarends.nl

Dec 15 2013

Jacob Carlborg <doob me.com> writes:

On 2013-12-16 01:54, Danny Arends wrote:

 Pass it depending if you use rdmd or dmd

 -L-ldl

 or

 -ldl

It's -L-ldl regardless of it's rdmd or dmd.

-- 
/Jacob Carlborg

Dec 15 2013

"MrSmith" <mrsmith33 yandex.ru> writes:

On Monday, 16 December 2013 at 07:36:12 UTC, Jacob Carlborg wrote:
 On 2013-12-16 01:54, Danny Arends wrote:

 Pass it depending if you use rdmd or dmd

 -L-ldl

 or

 -ldl

 It's -L-ldl regardless of it's rdmd or dmd.

now i'm getting this error:

deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_416_4ee.o): 
In function `_D8derelict4util9sharedlib13LoadSharedLibFAyaZPv':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:60: 
undefined reference to `dlopen'
deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_417_5d1.o): 
In function `_D8derelict4util9sharedlib15UnloadSharedLibFPvZv':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:64: 
undefined reference to `dlclose'
deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_418_396.o): 
In function `_D8derelict4util9sharedlib9GetSymbolFPvAyaZPv':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:68: 
undefined reference to `dlsym'
deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_419_463.o): 
In function `_D8derelict4util9sharedlib11GetErrorStrFZAya':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:72: 
undefined reference to `dlerror'
collect2: error: ld returned 1 exit status
--- errorlevel 1

Dec 16 2013

Mike Parker <aldacron gmail.com> writes:

On 12/16/2013 6:55 PM, MrSmith wrote:
 On Monday, 16 December 2013 at 07:36:12 UTC, Jacob Carlborg wrote:

 now i'm getting this error:

 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_416_4ee.o): In
 function `_D8derelict4util9sharedlib13LoadSharedLibFAyaZPv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d:60:
 undefined reference to `dlopen'
 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_417_5d1.o): In
 function `_D8derelict4util9sharedlib15UnloadSharedLibFPvZv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d:64:
 undefined reference to `dlclose'
 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_418_396.o): In
 function `_D8derelict4util9sharedlib9GetSymbolFPvAyaZPv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d:68:
 undefined reference to `dlsym'
 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_419_463.o): In
 function `_D8derelict4util9sharedlib11GetErrorStrFZAya':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d:72:
 undefined reference to `dlerror'
 collect2: error: ld returned 1 exit status
 --- errorlevel 1

You're still not linking ld properly. It would help tremendously if you 
could show the command line you're using. Otherwise all people can do is 
make guesses about what *might* be wrong.

Dec 16 2013

"MrSmith" <mrsmith33 yandex.ru> writes:

 You're still not linking ld properly. It would help 
 tremendously if you could show the command line you're using. 
 Otherwise all people can do is make guesses about what *might* 
 be wrong.

Oh, right.
Here is first with "/usr/lib32/libdl.a" -L-ldl

andrey andress-ubuntu:~/anchovy$ dmd -debug -gc -m32 
"examples/fpshelper.d" "examples/main.d" -I"import" -I"deps/dlib" 
-I"deps/derelict-fi-master/source" 
-I"deps/derelict-sdl2-master/source" 
-I"deps/derelict-ft-master/source" 
-I"deps/derelict-gl3-master/source" 
-I"deps/derelict-glfw3-master/source" 
-I"deps/derelict-util-1.0.0/source" "lib/debug/libgui.a" 
"lib/debug/libgraphics.a" "lib/debug/libcore.a" 
"lib/debug/libutils.a" "deps/dlib/libdlib.a" 
"deps/derelict-fi-master/lib/libDerelictFI.a" 
"deps/derelict-ft-master/lib/libDerelictFT.a" 
"deps/derelict-gl3-master/lib/libDerelictGL3.a" 
"deps/derelict-glfw3-master/lib/libDerelictGLFW3.a" 
"deps/derelict-util-1.0.0/lib/libDerelictUtil.a" 
"/usr/lib32/libdl.a" -L-ldl -of"bin/guidemo"

deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_416_4ee.o): 
In function `_D8derelict4util9sharedlib13LoadSharedLibFAyaZPv':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:60: 
warning: Using 'dlopen' in statically linked applications 
requires at runtime the shared libraries from the glibc version 
used for linking
/usr/lib32/libdl.a(dlopen.o): In function `dlopen':
(.text+0x1b): undefined reference to `__dlopen'
/usr/lib32/libdl.a(dlclose.o): In function `dlclose':
(.text+0x1): undefined reference to `__dlclose'
/usr/lib32/libdl.a(dlsym.o): In function `dlsym':
(.text+0x1b): undefined reference to `__dlsym'
/usr/lib32/libdl.a(dlerror.o): In function `dlerror':
(.text+0x1): undefined reference to `__dlerror'
collect2: error: ld returned 1 exit status
--- errorlevel 1

Second with -L-ldl only

andrey andress-ubuntu:~/anchovy$ dmd -debug -gc -m32 
"examples/fpshelper.d" "examples/main.d" -I"import" -I"deps/dlib" 
-I"deps/derelict-fi-master/source" 
-I"deps/derelict-sdl2-master/source" 
-I"deps/derelict-ft-master/source" 
-I"deps/derelict-gl3-master/source" 
-I"deps/derelict-glfw3-master/source" 
-I"deps/derelict-util-1.0.0/source" "lib/debug/libgui.a" 
"lib/debug/libgraphics.a" "lib/debug/libcore.a" 
"lib/debug/libutils.a" "deps/dlib/libdlib.a" 
"deps/derelict-fi-master/lib/libDerelictFI.a" 
"deps/derelict-ft-master/lib/libDerelictFT.a" 
"deps/derelict-gl3-master/lib/libDerelictGL3.a" 
"deps/derelict-glfw3-master/lib/libDerelictGLFW3.a" 
"deps/derelict-util-1.0.0/lib/libDerelictUtil.a" -L-ldl 
-of"bin/guidemo"

deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_416_4ee.o): 
In function `_D8derelict4util9sharedlib13LoadSharedLibFAyaZPv':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:60: 
undefined reference to `dlopen'
deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_417_5d1.o): 
In function `_D8derelict4util9sharedlib15UnloadSharedLibFPvZv':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:64: 
undefined reference to `dlclose'
deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_418_396.o): 
In function `_D8derelict4util9sharedlib9GetSymbolFPvAyaZPv':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:68: 
undefined reference to `dlsym'
deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_419_463.o): 
In function `_D8derelict4util9sharedlib11GetErrorStrFZAya':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:72: 
undefined reference to `dlerror'
collect2: error: ld returned 1 exit status
--- errorlevel 1

Dec 16 2013

Mike Parker <aldacron gmail.com> writes:

On 12/16/2013 7:09 PM, MrSmith wrote:
 You're still not linking ld properly. It would help tremendously if
 you could show the command line you're using. Otherwise all people can
 do is make guesses about what *might* be wrong.

 Oh, right.
 Here is first with "/usr/lib32/libdl.a" -L-ldl

 andrey andress-ubuntu:~/anchovy$ dmd -debug -gc -m32
 "examples/fpshelper.d" "examples/main.d" -I"import" -I"deps/dlib"
 -I"deps/derelict-fi-master/source" -I"deps/derelict-sdl2-master/source"
 -I"deps/derelict-ft-master/source" -I"deps/derelict-gl3-master/source"
 -I"deps/derelict-glfw3-master/source"
 -I"deps/derelict-util-1.0.0/source" "lib/debug/libgui.a"
 "lib/debug/libgraphics.a" "lib/debug/libcore.a" "lib/debug/libutils.a"
 "deps/dlib/libdlib.a" "deps/derelict-fi-master/lib/libDerelictFI.a"
 "deps/derelict-ft-master/lib/libDerelictFT.a"
 "deps/derelict-gl3-master/lib/libDerelictGL3.a"
 "deps/derelict-glfw3-master/lib/libDerelictGLFW3.a"
 "deps/derelict-util-1.0.0/lib/libDerelictUtil.a" "/usr/lib32/libdl.a"
 -L-ldl -of"bin/guidemo"

 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_416_4ee.o): In
 function `_D8derelict4util9sharedlib13LoadSharedLibFAyaZPv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d:60:
 warning: Using 'dlopen' in statically linked applications requires at
 runtime the shared libraries from the glibc version used for linking
 /usr/lib32/libdl.a(dlopen.o): In function `dlopen':
 (.text+0x1b): undefined reference to `__dlopen'
 /usr/lib32/libdl.a(dlclose.o): In function `dlclose':
 (.text+0x1): undefined reference to `__dlclose'
 /usr/lib32/libdl.a(dlsym.o): In function `dlsym':
 (.text+0x1b): undefined reference to `__dlsym'
 /usr/lib32/libdl.a(dlerror.o): In function `dlerror':
 (.text+0x1): undefined reference to `__dlerror'
 collect2: error: ld returned 1 exit status
 --- errorlevel 1

 Second with -L-ldl only

 andrey andress-ubuntu:~/anchovy$ dmd -debug -gc -m32
 "examples/fpshelper.d" "examples/main.d" -I"import" -I"deps/dlib"
 -I"deps/derelict-fi-master/source" -I"deps/derelict-sdl2-master/source"
 -I"deps/derelict-ft-master/source" -I"deps/derelict-gl3-master/source"
 -I"deps/derelict-glfw3-master/source"
 -I"deps/derelict-util-1.0.0/source" "lib/debug/libgui.a"
 "lib/debug/libgraphics.a" "lib/debug/libcore.a" "lib/debug/libutils.a"
 "deps/dlib/libdlib.a" "deps/derelict-fi-master/lib/libDerelictFI.a"
 "deps/derelict-ft-master/lib/libDerelictFT.a"
 "deps/derelict-gl3-master/lib/libDerelictGL3.a"
 "deps/derelict-glfw3-master/lib/libDerelictGLFW3.a"
 "deps/derelict-util-1.0.0/lib/libDerelictUtil.a" -L-ldl -of"bin/guidemo"

 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_416_4ee.o): In
 function `_D8derelict4util9sharedlib13LoadSharedLibFAyaZPv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d:60:
 undefined reference to `dlopen'
 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_417_5d1.o): In
 function `_D8derelict4util9sharedlib15UnloadSharedLibFPvZv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d:64:
 undefined reference to `dlclose'
 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_418_396.o): In
 function `_D8derelict4util9sharedlib9GetSymbolFPvAyaZPv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d:68:
 undefined reference to `dlsym'
 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_419_463.o): In
 function `_D8derelict4util9sharedlib11GetErrorStrFZAya':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d:72:
 undefined reference to `dlerror'
 collect2: error: ld returned 1 exit status
 --- errorlevel 1

For starters, remove "/usr/lib32/libdl.a". All you need is -L-ldl. The 
-L flag tells DMD that what follows needs to be passed to the linker. 
-ldl tells the linker to link with libdl. It will link with the shared 
version, which is really what you want. As it stands, you're telling DMD 
to link with both the static version of libdl (which you don't have 
installed, I think, according to the error in your original post) and 
the shared version at the same time. I don't know if that's the source 
of your current linker errors, but it's certainly potentially problematic.

Also, since you aren't using dub to manage your project, I suggest you 
copy all of the Derelict libraries to a common location. Then, you can 
remove all of the "*/libDerelict*.a" from the command line and do this 
instead:

-L-Lpath/to/libs -L-lDerelictFI -L-lDerelictGL3...

On the other hand, if you use dub to manage your project, all of this, 
including libdl, will be linked in for you automatically. Then your 
command line becomes:

dub build

during development and

dub build --build=release

when you're ready for the release version.

Dec 16 2013

Marco Leise <Marco.Leise gmx.de> writes:

Am Mon, 16 Dec 2013 11:09:52 +0100
schrieb "MrSmith" <mrsmith33 yandex.ru>:

 You're still not linking ld properly. It would help 
 tremendously if you could show the command line you're using. 
 Otherwise all people can do is make guesses about what *might* 
 be wrong.

 
 Oh, right.
 Here is first with "/usr/lib32/libdl.a" -L-ldl
 
 andrey andress-ubuntu:~/anchovy$ dmd -debug -gc -m32 
 "examples/fpshelper.d" "examples/main.d" -I"import" -I"deps/dlib" 
 -I"deps/derelict-fi-master/source" 
 -I"deps/derelict-sdl2-master/source" 
 -I"deps/derelict-ft-master/source" 
 -I"deps/derelict-gl3-master/source" 
 -I"deps/derelict-glfw3-master/source" 
 -I"deps/derelict-util-1.0.0/source" "lib/debug/libgui.a" 
 "lib/debug/libgraphics.a" "lib/debug/libcore.a" 
 "lib/debug/libutils.a" "deps/dlib/libdlib.a" 
 "deps/derelict-fi-master/lib/libDerelictFI.a" 
 "deps/derelict-ft-master/lib/libDerelictFT.a" 
 "deps/derelict-gl3-master/lib/libDerelictGL3.a" 
 "deps/derelict-glfw3-master/lib/libDerelictGLFW3.a" 
 "deps/derelict-util-1.0.0/lib/libDerelictUtil.a" 
 "/usr/lib32/libdl.a" -L-ldl -of"bin/guidemo"
 
 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_416_4ee.o): 
 In function `_D8derelict4util9sharedlib13LoadSharedLibFAyaZPv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:60: 
 warning: Using 'dlopen' in statically linked applications 
 requires at runtime the shared libraries from the glibc version 
 used for linking
 /usr/lib32/libdl.a(dlopen.o): In function `dlopen':
 (.text+0x1b): undefined reference to `__dlopen'
 /usr/lib32/libdl.a(dlclose.o): In function `dlclose':
 (.text+0x1): undefined reference to `__dlclose'
 /usr/lib32/libdl.a(dlsym.o): In function `dlsym':
 (.text+0x1b): undefined reference to `__dlsym'
 /usr/lib32/libdl.a(dlerror.o): In function `dlerror':
 (.text+0x1): undefined reference to `__dlerror'
 collect2: error: ld returned 1 exit status
 --- errorlevel 1
 
 Second with -L-ldl only
 
 andrey andress-ubuntu:~/anchovy$ dmd -debug -gc -m32 
 "examples/fpshelper.d" "examples/main.d" -I"import" -I"deps/dlib" 
 -I"deps/derelict-fi-master/source" 
 -I"deps/derelict-sdl2-master/source" 
 -I"deps/derelict-ft-master/source" 
 -I"deps/derelict-gl3-master/source" 
 -I"deps/derelict-glfw3-master/source" 
 -I"deps/derelict-util-1.0.0/source" "lib/debug/libgui.a" 
 "lib/debug/libgraphics.a" "lib/debug/libcore.a" 
 "lib/debug/libutils.a" "deps/dlib/libdlib.a" 
 "deps/derelict-fi-master/lib/libDerelictFI.a" 
 "deps/derelict-ft-master/lib/libDerelictFT.a" 
 "deps/derelict-gl3-master/lib/libDerelictGL3.a" 
 "deps/derelict-glfw3-master/lib/libDerelictGLFW3.a" 
 "deps/derelict-util-1.0.0/lib/libDerelictUtil.a" -L-ldl 
 -of"bin/guidemo"
 
 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_416_4ee.o): 
 In function `_D8derelict4util9sharedlib13LoadSharedLibFAyaZPv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:60: 
 undefined reference to `dlopen'
 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_417_5d1.o): 
 In function `_D8derelict4util9sharedlib15UnloadSharedLibFPvZv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:64: 
 undefined reference to `dlclose'
 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_418_396.o): 
 In function `_D8derelict4util9sharedlib9GetSymbolFPvAyaZPv':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:68: 
 undefined reference to `dlsym'
 deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_419_463.o): 
 In function `_D8derelict4util9sharedlib11GetErrorStrFZAya':
 /home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:72: 
 undefined reference to `dlerror'
 collect2: error: ld returned 1 exit status
 --- errorlevel 1

Do you have the 32-bit version of libdl installed?
What does this command output?:

  find /lib /lib32 /usr/lib /usr/lib32 -name "libdl*.so*"
  -type f -exec file {} ";"

For me it prints

 /lib32/libdl-2.15.so: ELF 32-bit LSB shared object, Intel 80386, version 1
(SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, stripped

so there is a libdl for 32-bit in /lib32.
If you have one as well, you'll probably need to call the
linker with the verbose option:

dmd -debug -gc -m32 
 "examples/fpshelper.d" "examples/main.d" -I"import" -I"deps/dlib" 
 -I"deps/derelict-fi-master/source" 
 -I"deps/derelict-sdl2-master/source" 
 -I"deps/derelict-ft-master/source" 
 -I"deps/derelict-gl3-master/source" 
 -I"deps/derelict-glfw3-master/source" 
 -I"deps/derelict-util-1.0.0/source" "lib/debug/libgui.a" 
 "lib/debug/libgraphics.a" "lib/debug/libcore.a" 
 "lib/debug/libutils.a" "deps/dlib/libdlib.a" 
 "deps/derelict-fi-master/lib/libDerelictFI.a" 
 "deps/derelict-ft-master/lib/libDerelictFT.a" 
 "deps/derelict-gl3-master/lib/libDerelictGL3.a" 
 "deps/derelict-glfw3-master/lib/libDerelictGLFW3.a" 
 "deps/derelict-util-1.0.0/lib/libDerelictUtil.a"
 -L--verbose -L-ldl 
 -of"bin/guidemo"

By the way, can you recompile everything in 64-bit or do you
have a 32-only system. In that case you don't require the -m32
flag.

-- 
Marco

Dec 16 2013

"MrSmith" <mrsmith33 yandex.ru> writes:

Eventually i have lot of time to answer.

Here is what 'find' emits:

andrey andress-ubuntu:~/anchovy$ find /lib /lib32 /usr/lib 
/usr/lib32 -name "libdl*.so*" -type f -exec file {} ";"
/lib/i386-linux-gnu/libdl-2.17.so: ELF 32-bit LSB shared object, 
Intel 80386, version 1 (SYSV), dynamically linked (uses shared 
libs), BuildID[sha1]=0x37b128aa3fc5f9e2078059787463f6bb611b03d2, 
for GNU/Linux 2.6.24, stripped
/lib/x86_64-linux-gnu/libdl-2.17.so: ELF 64-bit LSB shared 
object, x86-64, version 1 (SYSV), dynamically linked (uses shared 
libs), BuildID[sha1]=0xa39d9d93eb46ba4511ee1a8971d5f90b1e67d999, 
for GNU/Linux 2.6.24, stripped
/lib32/libdl-2.17.so: ELF 32-bit LSB shared object, Intel 80386, 
version 1 (SYSV), dynamically linked (uses shared libs), 
BuildID[sha1]=0x686964642d380ed673813bc5f421eed8cb7de32b, for 
GNU/Linux 2.6.24, stripped
/usr/lib/libreoffice/program/libdlgprovlo.so: ELF 64-bit LSB 
shared object, x86-64, version 1 (SYSV), dynamically linked, 
BuildID[sha1]=0xfb0d088f0da1219a0c5590beb9db9873cf5d1177, stripped
/usr/lib/debug/lib/x86_64-linux-gnu/libdl-2.17.so: ELF 64-bit LSB 
shared object, x86-64, version 1 (SYSV), dynamically linked (uses 
shared libs), 
BuildID[sha1]=0xa39d9d93eb46ba4511ee1a8971d5f90b1e67d999, for 
GNU/Linux 2.6.24, not stripped


Here i use verbose linking:

andrey andress-ubuntu:~/anchovy$  dmd -debug -gc -m32 
"examples/fpshelper.d" "examples/main.d" -I"import"   
-I"deps/dlib" -I"deps/derelict-fi-master/source" 
-I"deps/derelict-sdl2-master/source" 
-I"deps/derelict-ft-master/source" 
-I"deps/derelict-gl3-master/source" 
-I"deps/derelict-glfw3-master/source" 
-I"deps/derelict-util-1.0.0/source" "lib/debug/libgui.a" 
"lib/debug/libgraphics.a" "lib/debug/libcore.a" 
"lib/debug/libutils.a" "deps/dlib/libdlib.a" 
"deps/derelict-fi-master/lib/libDerelictFI.a" 
"deps/derelict-ft-master/lib/libDerelictFT.a" 
"deps/derelict-gl3-master/lib/libDerelictGL3.a" 
"deps/derelict-glfw3-master/lib/libDerelictGLFW3.a" 
"deps/derelict-util-1.0.0/lib/libDerelictUtil.a" -L--verbose 
-L-ldl -of"bin/guidemo" > link.txt
deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_416_4ee.o): 
In function `_D8derelict4util9sharedlib13LoadSharedLibFAyaZPv':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:60: 
undefined reference to `dlopen'
deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_417_5d1.o): 
In function `_D8derelict4util9sharedlib15UnloadSharedLibFPvZv':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:64: 
undefined reference to `dlclose'
deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_418_396.o): 
In function `_D8derelict4util9sharedlib9GetSymbolFPvAyaZPv':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:68: 
undefined reference to `dlsym'
deps/derelict-fi-master/lib/libDerelictFI.a(sharedlib_419_463.o): 
In function `_D8derelict4util9sharedlib11GetErrorStrFZAya':
/home/andrey/anchovy/deps/derelict-fi-master/../../../.dub/packages/derelict-util-1.0.0/source/derelict/
til/sharedlib.d:72: 
undefined reference to `dlerror'
collect2: error: ld returned 1 exit status

and here is content of link.txt http://pastebin.com/G3vyt345

Dec 17 2013

"MrSmith" <mrsmith33 yandex.ru> writes:

Still need help. I've tried compiling a little test project with 
dub and it compiled. Then i tried to compile it by hand and got 
the same error.
I think there is some issue in my command with parameter ordering.

Here is test project

module test;

import derelict.glfw3.glfw3;
import std.stdio;

void main() {
	DerelictGLFW3.load();
	writeln("test");
}

with package

{
	"targetName": "test",
	"dependencies": {
		"derelict-glfw3": "~master"
	},
	"targetType":"executable",
	"name": "test",
	"sourceFiles":["./test.d"]
}

The dub does two step compilation:
dmd -m32 
-of.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF9
601890AFD80709/test 
-c 
-of.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF956
1890AFD80709/test.o 
-debug -g -w -version=Have_test -version=Have_derelict_glfw3 
-version=Have_derelict_util 
-I../../.dub/packages/derelict-glfw3-master/source 
-I../../.dub/packages/derelict-util-1.0.0/source test.d 
../../.dub/packages/derelict-glfw3-master/source/derelict/glfw3/package.d 
../../.dub/packages/derelict-glfw3-master/source/derelict/glfw3/glfw3.d 
../../.dub/packages/derelict-util-1.0.0/source/derelict/util/xtypes.d 
../../.dub/packages/derelict-util-1.0.0/source/derelict/util/exception.d 
../../.dub/packages/derelict-util-1.0.0/source/derelict/util/system.d 
../../.dub/packages/derelict-util-1.0.0/source/derelict/util/loader.d 
../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d 
../../.dub/packages/derelict-util-1.0.0/source/derelict/util/wintypes.d
Linking...
dmd 
-of.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF9
601890AFD80709/test 
.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF956
1890AFD80709/test.o 
-L-ldl -m32 -g
Copying target from 
/home/andrey/test/.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF9
601890AFD80709/test 
to /home/andrey/test


So, do i need to use two step compilation or i need proper 
ordering of parameters?
One more question: why dub uses -of flag twice?

Dec 19 2013

Jacob Carlborg <doob me.com> writes:

On 2013-12-19 13:46, MrSmith wrote:

 So, do i need to use two step compilation or i need proper ordering of
 parameters?

You should not need to use two steps.

 One more question: why dub uses -of flag twice?

The -of flag tells the compiler which name to use for executable.

-- 
/Jacob Carlborg

Dec 19 2013

"MrSmith" <mrsmith33 yandex.ru> writes:

 The -of flag tells the compiler which name to use for 
 executable.

Yep, but why it is used twice?
dmd -m32 
-of.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF9
601890AFD80709/test 
-c 
-of.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF95601890AFD80709/test.o

Dec 19 2013

"MrSmith" <mrsmith33 yandex.ru> writes:

 dmd -m32 
 -of.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF9
601890AFD80709/test 
 -c 
 -of.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF956
1890AFD80709/test.o 
 -debug -g -w -version=Have_test -version=Have_derelict_glfw3 
 -version=Have_derelict_util 
 -I../../.dub/packages/derelict-glfw3-master/source 
 -I../../.dub/packages/derelict-util-1.0.0/source test.d 
 ../../.dub/packages/derelict-glfw3-master/source/derelict/glfw3/package.d 
 ../../.dub/packages/derelict-glfw3-master/source/derelict/glfw3/glfw3.d 
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/xtypes.d 
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/exception.d 
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/system.d 
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/loader.d 
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d 
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/wintypes.d
 Linking...

Turns out, dub includes actual dependencies source files into 
object file. _l-ldl flag with this works fine. but i want to use 
.a files instead

Dec 19 2013

Xavier Bigand <flamaros.xavier gmail.com> writes:

Le 19/12/2013 13:46, MrSmith a écrit :
 Still need help. I've tried compiling a little test project with dub and
 it compiled. Then i tried to compile it by hand and got the same error.
 I think there is some issue in my command with parameter ordering.

 Here is test project

 module test;

 import derelict.glfw3.glfw3;
 import std.stdio;

 void main() {
      DerelictGLFW3.load();
      writeln("test");
 }

 with package

 {
      "targetName": "test",
      "dependencies": {
          "derelict-glfw3": "~master"
      },
      "targetType":"executable",
      "name": "test",
      "sourceFiles":["./test.d"]
 }

 The dub does two step compilation:
 dmd -m32
 -of.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF95601890AFD80709/test
 -c
 -of.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF95601890AFD80709/test.o
 -debug -g -w -version=Have_test -version=Have_derelict_glfw3
 -version=Have_derelict_util
 -I../../.dub/packages/derelict-glfw3-master/source
 -I../../.dub/packages/derelict-util-1.0.0/source test.d
 ../../.dub/packages/derelict-glfw3-master/source/derelict/glfw3/package.d
../../.dub/packages/derelict-glfw3-master/source/derelict/glfw3/glfw3.d
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/xtypes.d
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/exception.d
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/system.d
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/loader.d
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/sharedlib.d
 ../../.dub/packages/derelict-util-1.0.0/source/derelict/util/wintypes.d
 Linking...
 dmd
 -of.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF95601890AFD80709/test
 .dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF95601890AFD80709/test.o
 -L-ldl -m32 -g
 Copying target from
 /home/andrey/test/.dub/build/application-debug-x86-dmd-DA39A3EE5E6B4B0D3255BFEF95601890AFD80709/test
 to /home/andrey/test


 So, do i need to use two step compilation or i need proper ordering of
 parameters?
 One more question: why dub uses -of flag twice?

I use pragma(lib, "dl"), but it doesn't work with DUB cause it separate 
build and link steps. I like the idea that sources knows them selves how 
they have to be build. I think it's possible to simply do rdmd main.d 
when using pragma(lib, "xxx").

For dub, add this line in your package.json :
     "libs-posix": ["dl"],

Dec 19 2013

"MrSmith" <mrsmith33 yandex.ru> writes:

-L-ldl do not work but pragma(lib, "dl"); works! Wtf?

Dec 20 2013

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