[Issue 9508] New: RDMD doesn't generate new dependency list when a file is changed.

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=9508

           Summary: RDMD doesn't generate new dependency list when a file
                    is changed.
           Product: D
           Version: D2
          Platform: x86_64
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: jerro.public at gmail.com


--- Comment #0 from jerro.public at gmail.com 2013-02-13 16:41:03 PST ---
Steps to reproduce:

1. Make a file a.d with this content:

module a;

void foo(){}

void main()
{
    foo();
}

2. Run this:

rdmd a

3. Replace the content of a.d with this:

module a;

import b;

void main()
{
    foo();
}

and create a file b.d with this content:

module b;

void foo(){}

4. run this:

rdmd --chatty a

The command outputs:

'dmd' '-of/tmp/.rdmd-1000/rdmd-a.d-8707821320FFD4E4D80A6FA8EAD4B975/a'
'-od/tmp/.rdmd-1000/rdmd-a.d-8707821320FFD4E4D80A6FA8EAD4B975/objs' '-I.' 'a.d'
/tmp/.rdmd-1000/rdmd-a.d-8707821320FFD4E4D80A6FA8EAD4B975/objs/a.o: In function
`_Dmain':
a.d:(.text._Dmain+0x5): undefined reference to `_D1b3fooFZv'
collect2: error: ld returned 1 exit status
--- errorlevel 1

You can see that rdmd didn't ran "dmd -v ..." to get a new dependency list. It
used the old list which doesn't contain b.d. That resulted in a linker error.
If you now run:

rdmd --force a

it succeeds.

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