title: Cannot find libcrypto in Ubuntu
body: <p>I want to try one program which have makefile on it but when I put <code>make</code> in the shell the error  was:</p>
  
  <pre><code> g++ -g -DaUNIX -I../../acroname/aInclude -I../../acroname/aSource -Wl,-rpath,.     unix_aLaserDemo_Data/aLaserDemo.o unix_aLaserDemo_Data/acpLaser.o -lpthread -lcrypto -lssl  -o ../../acroname/aBinary/aLaserDemo
  /usr/bin/ld: cannot find -lcrypto
  collect2: ld returned 1 exit status
  </code></pre>
  
  <p>Here is the makefile:</p>
  
  <pre><code> CC = g++
   CFLAGS = -DaUNIX -I../../acroname/aInclude -I../../acroname/aSource
   LFLAGS = -Wl,-rpath,.
   SRC = ../../acroname/aSource
   BIN = ../../acroname/aBinary
   LIBS = -lpthread -lcrypto -lssl \
   #LIBS = -lpthread\
         -L../../acroname/aBinary -l aUtil -l aIO
   OBJ = unix_aLaserDemo_Data
  
  .PHONY : app
   app : $(OBJ) $(BIN)/aLaserDemo
  
  $(OBJ) :
          mkdir $(OBJ)
  
  $(BIN)/aLaserDemo : $(OBJ)/aLaserDemo.o $(OBJ)/acpLaser.o
          $(CC) -g $(CFLAGS) $(LFLAGS) $^ $(LIBS) -o $@
  
  $(OBJ)/aLaserDemo.o : aLaserDemo.cpp
          $(CC) -c $(CFLAGS) $&lt; -o $@
  
  $(OBJ)/acpLaser.o : $(SRC)/acpLaser.cpp $(SRC)/acpLaser.h
          $(CC) -c $(CFLAGS) $&lt; -o $@
  
   .PHONY : clean
   clean :
      rm -rf $(OBJ)
      rm -f $(BIN)/aLaserDemo
  </code></pre>
  
  <p>I try to locate the crypto library:</p>
  
  <pre><code> /usr/lib/i486/libcrypto.so.0.9.8
   /usr/lib/i586/libcrypto.so.0.9.8
   /usr/lib/i686/cmov/libcrypto.so.0.9.8
   /usr/lib/libcrypto.so.0.9.8
  </code></pre>
  
  <p>What should I do to fix it?</p>