configure

一个端口扫描器

#!/bin/sh

echo -n Name of the C compiler to be used [gcc] :
read CC
echo -n Compile time options [-O2 -m486] :
read CFLAGS
echo -n Linking options [] :
read LDFLAGS

mv -f Makefile Makefile.old

if [ $CC ]; then
	echo "CC = $CC" >Makefile
else
	echo "CC = gcc" >Makefile
fi

if [ $CFLAGS ];then
	echo "CFLAGS = $CFLAGS" >>Makefile
else
	echo "CFLAGS = -O2 -m486" >>Makefile
fi

if [ $LDFLAGS ]; then
	echo "LDFLAGS = $LDFLAGS" >>Makefile
else
	echo "LDFLAGS =" >>Makefile
fi

echo >>Makefile
echo "ipps:" >>Makefile
echo '	$(CC) $(CFLAGS) $(LDFLAGS) scan.c -o ipps' >>Makefile

echo >>Makefile
echo "clean:" >>Makefile
echo '	rm -f ipps' >>Makefile

echo "Do make; to build ipps and then cp ipps /destination/ipps to install."