[bug #21854] Dependency to a -l<libname> to be made in a not yet existing directory doesn't match(?)

[Jesper Blommaskog]

URL:
  <http://savannah.gnu.org/bugs/?21854>

                 Summary: Dependency to a -l<libname> to be made in a not yet
existing directory doesn't match(?)
                 Project: make
            Submitted by: jesperb
            Submitted on: torsdag 2007-12-20 den 11:31
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
       Component Version: 3.80
        Operating System: POSIX-Based
           Fixed Release: None

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Details:

I want to have a ORDER_ONLY_DEPENDENCY to a shared library to be built before
I link my main program and I want the shared library to be put in a directory
to be created by the makefile if it doesn't already exist. I also want to use
the "-l<libname>" syntax when linking and also in the make file to avoid
getting a hard coded path to the shared object into my executable. I then
tried the following, that won't work unless I create the directory "./temp"
manually before running make,


gmake

 will fail, giving 

gmake: *** No rule to make target `-lfunny_name', needed by `my_program'. 
Stop.

while

"mkdir temp; gmake"

will compile and link properly.

My system is RedHat EL4 using GNU make 3.80, but it was the same using 3.81.
Maybe this is simply an optimisation, to ignore some rules for non-existing
directories?



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File Attachments:


-------------------------------------------------------
Date: torsdag 2007-12-20 den 11:31  Name: Makefile  Size: 972 B   By: jesperb
&quot;gmake&quot; will fail, while &quot;mkdir temp; gmake&quot; will succeed
<http://savannah.gnu.org/bugs/download.php?file_id=14672>

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  <http://savannah.gnu.org/bugs/?21854>

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