Limavolt Limavolt - 5 months ago 48
C Question

Cannot find libcrypto in Ubuntu

I want to try one program which have makefile on it but when I put

in the shell the error was:

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

Here is the makefile:

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) $< -o $@

$(OBJ)/acpLaser.o : $(SRC)/acpLaser.cpp $(SRC)/acpLaser.h
$(CC) -c $(CFLAGS) $< -o $@

.PHONY : clean
clean :
rm -rf $(OBJ)
rm -f $(BIN)/aLaserDemo

I try to locate the crypto library:


What should I do to fix it?


I solved this on 12.10 by installing libssl-dev.

sudo apt-get install libssl-dev