Re: AD R3-2 libzlib.so

["Madden, Timothy J. via Tech-talk" <tech-talk@aps.anl.gov>]

I am using AD in Sinisa Viseli's DAQ distro. He compiles libz and calls it just z,  in the Linux tradition.

I did a major kludge by this:

cd /usr/lib64

ln -s libz.so libzlib.so

It is nasty, but it will work for now. We just want to run some software on a uTCA crate to take some RF measurements. 

We are not even using the plugins that need compression.

T

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From: Mark Rivers <rivers@cars.uchicago.edu>
Sent: Friday, December 7, 2018 11:35:40 AM
To: Madden, Timothy J.; tech-talk@aps.anl.gov
Subject: RE: AD R3-2 libzlib.so

 

How have you defined HAVE_ZLIB and ZLIB_EXTERNAL in areaDetector/configure/CONFIG_SITE.local?  If you define HAVE_ZLIB and ZLIB_EXTERNAL=NO it will build and use the version in ADSupport. That is what I recommend.

 

I think there may be a problem if you set ZLIB_EXTERNAL=YES because the library in ADSupport is called libzlib.so, but the OS version is called libz.so.  We could fix that in the future, but for now just use the version in ADSupport.

 

Mark

 

 

From: Madden, Timothy J. <tmadden@anl.gov>
Sent: Friday, December 7, 2018 10:44 AM
To: tech-talk@aps.anl.gov
Cc: Mark Rivers <rivers@cars.uchicago.edu>
Subject: AD R3-2 libzlib.so

 

Mark

 

I am having a link problem with AD. My exe is looking for libzlib.so

 

I know of libz.so, and have it installed, but I don't know what libzlib.so is. I am using Linux rhel6.

 

 

ldd of my exe 

gives:

 

…...

        libz.so.1 => /lib64/libz.so.1 (0x000000343c800000)
        libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x0000003bc2600000)
        libm.so.6 => /lib64/libm.so.6 (0x000000343b800000)
44c400000)

 

… …

        libxml2.so => /usr/lib64/libxml2.so (0x0000003442800000)
        libzlib.so => not found
        liblzma.so => /net/phoebus/ctlsdaq/CTLSDAQ/support-7.0-rhel6/opt/epics-7.0.1.1/extensions/lib/linux-x86_64/liblzma.so (0x00007f5951799000)

 

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Tim

 

 

PS

 

See:

 

 https://epics.anl.gov/tech-talk/2018/msg02162.php