On Tue, Oct 10, 2006, Ralf S. Engelschall wrote:
>On Mon, Oct 09, 2006, Bill Campbell wrote:
>
>> The attached patch to the Release 2.5 version of pdflib fixes a
>> problem building on SuSE Linux Enterprise 10 in which the build
>> was failing saying it didn't know how to build ``-lpng''.
>>
>> It turns out that the included piece for the Makefile uses the
>> variables PNGLIBLINK and JPEGLIBLINK in dependencies so requires
>> file names here, not loader options. I put in a couple of loops
>> through the l_ldflags macro to test for the libraries since on
>> the 64 bit machines this may need to check multiple directories.
>>
>> It also required adding ``-lpng -ljpeg'' to LDFLAGS to get things
>> to load properly.
>>
>> Looking at the pdflib.spec file in the CURRENT version of pdflib,
>> it appears that it should have the same patch applied.
>
>Ok, now fixed in CURRENT with pdflib-7.0.0-20061010 and higher. I've
>just not taken over the loop as it is not required because we explicitly
>depended on _OUR_ "png", "jpeg" and "zlib" and this way we know
>precisely the path to the libxxx.a file. Thanks for your contribution,
The reason I did the loops is that gcc does use create and use
the %{l_prefix}/lib64 directory on 64-bit machines. While it's
probably redundant, it does cover the general case and would work
if there were reasons to have 32 and 64 bit libraries on a
machine. Put it under the category of defensive programming if
you like.
Bill
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