Make file error please guide

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I am having a file/folder structure like this
"MY" folder contain
main.c

then "My" folder contain two other folders named "source" and "header"

main.c has references to header files that are in the "header" folder.
The *.c source files (that are in the source directory) has there header files in "header" directory.

So i have written the make files like this

program: main.o CPU.o OS.o RAM.o snmputil.o UTILITY_FUNCTION.o

main.o: main.c /header/OS.h /header/snmputil.h /header/CPU.h
        gcc -o main.c

CPU.o: /source/CPU.c ../header/CPU.h
        gcc -o /source/CPU.c


OS.o: OS.c ../header/OS.h
        gcc -c /source/OS.c

UTILITY_FUNCTION.o: /source/UTILITY_FUNCTION.c ../header/UTILITY_FUNCTION.h
        gcc -c /source/UTILITY_FUNCTION.c

when i do make on the makefile i get the error

missing separator.  Stop.

Please guide

Posted 16-Dec-13 1:07am

Robert Clove

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CPallini · Answer 1 · 2013-12-16T01:37:00

Quote:
main.o: main.c /header/OS.h /header/snmputil.h /header/CPU.h
gcc -o main.c

Should be:

main.o: main.c header/OS.h header/snmputil.h header/CPU.h
        gcc -I header -c main.c

Quote:
CPU.o: /source/CPU.c ../header/CPU.h
gcc -o /source/CPU.c

Should be:

CPU.o: ../source/CPU.c ../header/CPU.h
        gcc -I../header -c /source/CPU.c

and so on.

Moreover, make sure you (and your editor as well) are using tabs instead of blanks, before compiling directives (i.e. before gcc).