[LLVMdev] [PATCH] llvm-config: Add support for LIBDIR_SUFFIX.

[Eric Christopher]

On Sep 21, 2011, at 10:12 AM, Johannes Obermayr wrote:

> On Tuesday 20 September 2011 11:50:07 Eric Christopher wrote:
>> 
>> On Sep 20, 2011, at 11:46 AM, Johannes Obermayr wrote:
>> 
>>> On Tuesday 20 September 2011 11:23:05 Eric Christopher wrote:
>>>> Why?
>>>> 
>>>> -eric
>>>> 
>>> 
>>> Because openSUSE and many other linux distributions put all things to /usr/lib (i586) and /usr/lib64 (x86_64) or /usr/lib32.
>>> So it is possible to install x86 and x86_64 versions at the same time ...
>>> (See also http://lists.cs.uiuc.edu/pipermail/llvmdev/2011-July/042068.html and http://llvm.org/bugs/show_bug.cgi?id=10836)
>> 
>> It should be better to just use --libdir and make sure that LLVM_LIBDIR is set to the result of the configure option if it's different.
>> 
>> -eric
> 
> Your advice does not work because following [old] code ensures to be able to run llvm-config [with right output] from build dir (= without 'make install'):
> 
> tools/llvm-config/llvm-config.in.in:55:
> my ($RUN_DIR) = ($0 =~ /^(.*)\/.*$/);
> 
> tools/llvm-config/llvm-config.in.in:59:
> my $ABS_RUN_DIR = abs_path("$RUN_DIR/..");
> 
> tools/llvm-config/llvm-config.in.in:69:
> my $LIBDIR     = "$ABS_RUN_DIR/lib";
> 

Chop off the end and use the lib* if we're not in the obj directory?

if ($ABS_RUN_DIR eq $ABS_OBJ_ROOT) {
…
}

> So push it or let it ...

?

-eric