Experimental Physics and
Industrial Control System

Hi Ryu,

I have not worked with linux-arm, so I may be off base.

Error messages like this:
/usr/bin/ld: /home/pi/epics/base-3.15.8/lib/linux-arm/libX11.a(CrGlCur.o): undefined reference to symbol 'dlopen@@GLIBC_2.4'

often mean that the version of gcc (which supplies GLBIC) is older than the version required by a library you are using.

 Where did you get this file?   /home/pi/epics/base-3.15.8/lib/linux-arm/libX11.a

That seems like an unusual location for the X11 library file.

Mark



From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Huyn Woo Ryu via Tech-talk <tech-talk at aps.anl.gov>
Sent: Tuesday, April 27, 2021 4:51 AM
To: tech-talk at aps.anl.gov
Subject: how to install alh on raspberry pi 4
 

 Hi,I installed base-3.15.8 successfully on raspberry piBut when I install 'alh1_2_35' on raspberry pi OS(kernel version 5.10) on raspberry pi 4, it can't make successfully, the err as follows:
/usr/bin/ld: /home/pi/epics/base-3.15.8/lib/linux-arm/libX11.a(CrGlCur.o): undefined reference to symbol 'dlopen@@GLIBC_2.4'
/usr/bin/ld: //lib/arm-linux-gnueabihf/libdl.so.2: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make[1]: *** [../../../../base/configure/RULES_BUILD:204: alh] Error 1
make[1]: Leaving directory '/home/pi/epics/extensions/src/alh1_2_35/O.linux-arm'
make: *** [../../../base/configure/RULES_ARCHS:58: install.linux-arm] Error 2   I don't know how to fix it, could you give me some advice on it?Please, Help me! I consumed many time for this problem.Ryu