> > *Because it's wrong. LD_LIBRARY_PATH is executation time, not link time. > Link time is -L /path/to/lib( gcc / g++ )* >
What's more, *every* user should have /usr/lib in their path . . . Anyway, read this, and learn: http://tldp.org/HOWTO/Program-Library-HOWTO/shared-libraries.html On Tue, Jan 19, 2016 at 6:32 AM, Mike <bellyac...@gmail.com> wrote: > On 01/18/2016 11:00 PM, Dean wrote: > > All said something else is going on here. libEBBLibrary.so is definitely > there yet it does not take. I should mention that namespace std is being > used to make updates on code easier. See code listed below. > > > root@beaglebone:~/exploringBB/chp09/LCDcharacter# export > LD_LIBRARY_PATH="~/exploringBB/library/libEBBLibrary.so:$LD_LIBRARY_PATH" > > root@beaglebone:~/exploringBB/chp09/LCDcharacter# ./LCDApp > > ./LCDApp: error while loading shared libraries: libEBBLibrary.so: cannot > open shared object file: No such file or directory > > root@beaglebone:~/exploringBB/chp09/LCDcharacter# cd ../../library > > root@beaglebone:~/exploringBB/library# ls > > CMakeLists.txt README build bus display docs example gpio libEBBLibrary.a > libEBBLibrary.so motor network sensor > > root@beaglebone:~/exploringBB/library# > > > Here is the code ... > > > #include <unistd.h> > #include <iostream> > #include <sstream> > #include "display/LCDCharacterDisplay.h" > using namespace std; > using namespace exploringBB; > > int main(){ > cout << "Starting EBB LCD Character Display Example" << endl; > SPIDevice *busDevice = new SPIDevice(2,0); //Using second SPI bus (both > loaded) > busDevice->setSpeed(1000000); // Have access to SPI Device object > ostringstream s; // Using this to combine text and > int data > LCDCharacterDisplay display(busDevice, 16, 2); // Construct 16x2 LCD > Display > display.clear(); // Clear the character LCD module > display.home(); // Move the cursor to the (0,0) > position > display.print("EBB by D. Molloy"); // String to display on the first row > for(int x=0; x<=10000; x++){ // Do this 10,000 times > s.str(""); // clear the ostringstream object s > display.setCursorPosition(1,3); // move the cursor to second row > s << "X=" << x; // construct a string that has an > int value > display.print(s.str()); // print the string X=*** on the LCD > module > } > cout << "End of EBB LCD Character Display Example" << endl; > } > > ldd and strace are probably the tools I would use to help debug this. > > Mike > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
