Re: compilation issues (dmd, rdmd, ldc2)
On Sunday, 21 February 2016 at 22:53:17 UTC, anonymous wrote: On 21.02.2016 22:51, kraxli wrote: Great this all works and good to know that D links as basic gcc/llvm link. Thanks a lot to everybody - very helpful!
Re: compilation issues (dmd, rdmd, ldc2)
On Sunday, 21 February 2016 at 21:35:55 UTC, anonymous wrote: On Sunday, 21 February 2016 at 21:21:30 UTC, kraxli wrote: Thanks for coming back on that! The problem is the consoled-package which has the library: ~/.dub/packages/consoled-1.0.0/libconsoled.a So I link it (or aim to do it ;-) ) but dmd cannot find it: $ dmd -I~/.dub/packages/consoled-1.0.0/source -L-l~/.dub/packages/consoled-1.0.0/libconsoled appX.d /usr/bin/ld: cannot find -l~/.dub/packages/consoled-1.0.0/libconsoled collect2: error: ld returned 1 exit status --- errorlevel 1 I don't think it works like that. If I remember correctly, you can either a) do it the linker way: `dmd -L-L~/.dub/packages/consoled-1.0.0/ -L-lconsoled ...`, or b) do it the dmd way: `dmd ~/.dub/packages/consoled-1.0.0/libconsoled.a ...`. b) works! :-) Many thanks!! a) doesn't work, I need to search for more information on linking as I would like to understand these kind of basics in D :-). The books I consulted so far (Learn D and D cookbook) did not help me to understand the linking so far ... I don't know what's going on there, but there shouldn't be a std/range.d with recent versions of phobos. It's a package since 2.067.0. Maybe a leftover from a previous installation? I just reinstalled it and it seems as it would have installed in the directory mentioned by ldc2: -- Installing: /usr/local/include/d/std/range -- Installing: /usr/local/include/d/std/range/primitives.d -- Installing: /usr/local/include/d/std/range/package.d -- Installing: /usr/local/include/d/std/range/interfaces.d But is there a file /usr/local/include/d/std/range.d? If so, that's apparently not from your latest install, and it may confuse ldc. If there is no such file, then I can't make any sense of the error messages. Oh yes there is such a file (and others). I need to clean these redundant files up ... Thanks here as well!
Re: compilation issues (dmd, rdmd, ldc2)
On Sunday, 21 February 2016 at 20:50:11 UTC, anonymous wrote: On Sunday, 21 February 2016 at 20:04:34 UTC, kraxli wrote: What is going on here and what is the difference between dmd and rdmd? dmd compiles the modules that you specify on the command line. By default, it then links an executable from the generated object files. The linking can only work when you give dmd all the code, either in source form or in compiled object form. When something is missing, you get "undefined reference" errors. Thanks for coming back on that! The problem is the consoled-package which has the library: ~/.dub/packages/consoled-1.0.0/libconsoled.a So I link it (or aim to do it ;-) ) but dmd cannot find it: $ dmd -I~/.dub/packages/consoled-1.0.0/source -L-l~/.dub/packages/consoled-1.0.0/libconsoled appX.d /usr/bin/ld: cannot find -l~/.dub/packages/consoled-1.0.0/libconsoled collect2: error: ld returned 1 exit status --- errorlevel 1 That means, when your program has multiple source files (including libraries), you must put them all on the dmd command line. Or you can compile modules individually (without linking, -c flag), and then put the generated object files on the command line when linking. rdmd is a wrapper around dmd (or another, compatible compiler). It reads the dependency tree of the modules, and runs dmd on all of the source files at once. That means, you only need to put the root module on the command line for rdmd. rdmd reads the imports and generates a full list of source files for dmd. Moreover, ldc2 has conflicts with modules which is probably due to installation, linking and scope issues. How can I shrink the scope for ldc2 such that it only looks at the "right place" for modules (and where is that?) ? $ ldc2 -I~/.dub/packages/consoled-1.0.0/source/ appX.d /usr/local/include/d/std/range.d(287): Error: module std.range from file /usr/local/include/d/std/range.d conflicts with package name range I don't know what's going on there, but there shouldn't be a std/range.d with recent versions of phobos. It's a package since 2.067.0. Maybe a leftover from a previous installation? I just reinstalled it and it seems as it would have installed in the directory mentioned by ldc2: -- Installing: /usr/local/include/d/std/range -- Installing: /usr/local/include/d/std/range/primitives.d -- Installing: /usr/local/include/d/std/range/package.d -- Installing: /usr/local/include/d/std/range/interfaces.d
compilation issues (dmd, rdmd, ldc2)
I have problems with compiling a very simple program which loads
a couple of modules/functions (which I would like to use later
on).
rdmd -I~/.dub/packages/consoled-1.0.0/source/ appX.d
runs great :-) and also dub runs works.
But dmd only returns:
´´´
$ dmd -I~/.dub/packages/consoled-1.0.0/source/ appX.d
appX.o:(.rodata+0x98): undefined reference to
`_D8consoled12__ModuleInfoZ'
collect2: error: ld returned 1 exit status
--- errorlevel 1
´´´
What is going on here and what is the difference between dmd and
rdmd?
Moreover, ldc2 has conflicts with modules which is probably due
to installation, linking and scope issues. How can I shrink the
scope for ldc2 such that it only looks at the "right place" for
modules (and where is that?) ?
$ ldc2 -I~/.dub/packages/consoled-1.0.0/source/ appX.d
/usr/local/include/d/std/range.d(287): Error: module std.range
from file /usr/local/include/d/std/range.d conflicts with package
name range
/usr/local/include/d/std/range.d(287): Error: module std.range
from file /usr/local/include/d/std/range.d conflicts with package
name range
/usr/local/include/d/std/range.d(287): Error: module std.range
from file /usr/local/include/d/std/range.d conflicts with package
name range
/usr/local/include/d/std/range.d(287): Error: module std.range
from file /usr/local/include/d/std/range.d conflicts with package
name range
/usr/local/include/d/std/range.d(287): Error: module std.range
from file /usr/local/include/d/std/range.d conflicts with package
name range
/usr/local/include/d/std/algorithm/iteration.d(59): Error:
package name 'std.algorithm' conflicts with usage as a module
name in file /usr/local/include/d/std/algorithm.d
/usr/local/include/d/std/range.d(287): Error: module std.range
from file /usr/local/include/d/std/range.d conflicts with package
name range
In case it is of any interest my dummy code is:
´´´
import std.stdio;
import consoled; /* https://github.com/robik/ConsoleD */
import str = std.string;
import curl = std.net.curl;
import rx = std.regex;
import std.algorithm.iteration : splitter, joiner;
import std.algorithm : map;
import std.typecons;
import dt = std.datetime;
import ar = std.array;
import math = std.math : floor, ceil;
import std.conv : to;
import std.format : format;
import std.array;
import std.range.primitives;
import json = std.json;
import std.range : iota;
void main(string[] args)
{
writeln("==\nNice it compiles and runs
:-)\n==");
}
´´´
I am working on Ubuntu 14.04 (64bit), with dmd 2.070, rdmd build
20160127 and ldc2 (installed from source without any extra flags)
is based on DMD v2.068.2 and LLVM 3.6.0.
