makefile: *** missing separator. Stop.

# This is the default target, which will be built when 

# you invoke make

.PHONY: all

all: main

# This rule tells make how to build main from main.cpp

main: main.c

    gcc -o main main.c

# This rule tells make to copy main to the binaries subdirectory,

# creating it if necessary

.PHONY: install

install:

    mkdir -p binaries

    cp -p main binaries

# This rule tells make to delete main and main.o

.PHONY: clean 

clean:

    rm -f main

mingw32-make.exe

makefile:8: *** missing separator.  Stop.

gcc -o main main.c