/ bin / sh：语法错误：文件结束意外

Question

I am getting an error when running the following makefile with make -f makefile2 install (apart install the rest is working):

all:myapp

#which compiler
CC = gcc

#Where to install
INSTDIR = /usr/local/bin

#where are include files kept
INCLUDE = .

#Options for development
CFLAGS = -g -Wall -ansi

#Options for release
# CFLAGS = -O -Wall -ansi

myapp: main.o 2.o 3.o
    $(CC) -o myapp main.o 2.o 3.o

main.o: main.c a.h
    $(CC) -I$(INCLUDE) $(CFLAGS) -c main.c

2.o: 2.c a.h b.h
    $(CC) -I$(INCLUDE) $(CFLAGS) -c 2.c

3.o: 3.c b.h c.h
    $(CC) -I$(INCLUDE) $(CFLAGS) -c 3.c         

clean:
    -rm main.o 2.o 3.o

install: myapp
    @if [ -d $(INSTDIR) ]; \
      then \
      cp myapp $(INSTDIR);\
      chmod a+x $(INSTDIR)/myapp;\
      chmod og-w $(INSTDIR)/myapp;\
      echo "Installed in $(INSTDIR)";\
    else
      echo "Sorry, $(INSTDIR) does not exist";\
    fi

I'm getting the following error:

error /bin/sh: 7: Syntax error: end of file unexpected
make: *** [install] Error 2

From what I understand it is a white space/tabulation/non unix character problem in the last lines of the makefile (after install:). But even trying to delete all spaces and replacing with tabulation I didn't manage to run the makefile properly. The code comes directly from a programming book I'm reading and is an example. Any help appreciated!

Answer 1

You're missing a trailing slash on your else under the install rule. It should be:

install: myapp
    @if [ -d $(INSTDIR) ]; \
      then \
      cp myapp $(INSTDIR);\
      chmod a+x $(INSTDIR)/myapp;\
      chmod og-w $(INSTDIR)/myapp;\
      echo "Installed in $(INSTDIR)";\
    else\
      echo "Sorry, $(INSTDIR) does not exist";\
    fi