Cannot find -lperl doing a makefile on c++

Question

sorry about my bad english...

Well, I'm now to linux, perl and c++, but I have to do some codes for the university and I'm getting some troubles while doing the makefile.

I have a code in perl which is running perfectly. As well, I have a code in C++ that calls perl as a subroutine. Everything is working properly, but when I do the makefile on my computer, it says:

sathlervbn Spam C # make clean; make
rm -f *.o
g++  -Wall  -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fstack-protector -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64  -I/usr/lib/perl/5.14/CORE     -c -o main.o main.cpp
g++ -L/usr/lib -Wall -Wl,-E  -fstack-protector -L/usr/local/lib  -L/usr/lib/perl/5.14/CORE -    lperl -ldl -lm -lpthread -lc -lcrypt -o main libSpam.a main.o
/usr/bin/ld: cannot find -lperl
collect2: error: ld returned 1 exit status
make: *** [main] Error 1

The problem is that when I run the makefile in my professor's computer, it's works...

Here is the code of makefile:

#CC= /usr/bin/g++
CPP = g++
CPPFLAGS = -Wall $(shell perl -MExtUtils::Embed -e ccopts)

#LD= /usr/bin/g++
LD = g++

#LFLAGS = -Wall $(shell perl -MExtUtils::Embed -e ldopts)

LFLAGS = -Wall -Wl,-E  -fstack-protector -L/usr/local/lib  -L/usr/lib/perl/5.14/CORE - lperl -ldl -lm -lpthread -lc -lcrypt

MAINOBJS = libSpam.a main.o

EMAILS = main

EXECS = $(EMAILS)

#Regra Implicita:
.c.o:
    $(CPP) $(CPPFLAGS) -c $<

all: emails

emails: $(EMAILS)

main: $(MAINOBJS)
    $(LD) -L/usr/lib $(LFLAGS) -o $@ $(MAINOBJS)

clean:
    rm -f *.o

Does anyone know how to solve it?

Answer 1

You need to install the perl library for C. If you're on a Debian based system (including Ubuntu) sudo apt-get install libperl-dev or something similar may be sufficient, depending on which version of perl you're using.

Update: ok, this is a bit strange - I've installed perl-base, and it installed /usr/lib/libperl.so.5.14 but it did not make a /usr/lib/libperl.so symlink as you'd expect. I wonder why not? If I manually create the symlink with ln -s /usr/lib/libperl.so.5.14 /usr/lib/libperl.so it links correctly.

Update the second I had perl-base installed, but not libperl-dev which gave me /usr/lib/libperl.so.5.14 but not /usr/lib/libperl.so. I suspect (don't know for sure, but strongly suspect) that the correct answer isn't to manually make the symlink, but to install libperl-dev.