Download and build GNU Bash 4.2.53

Makefile

all: download clean extract patch build check

download:
	if [ ! -e "bash-4.2.tar.gz" ]; \
	then \
		wget -nv https://ftp.gnu.org/gnu/bash/bash-4.2.tar.gz; \
	fi; \
	if [ ! -e "patches-4.2" ]; then \
		mkdir patches-4.2; \
		cd patches-4.2; \
		for i in `seq 1 53`; \
		do \
			num=`printf "%03d" $$i`; \
			wget -nv https://ftp.gnu.org/gnu/bash/bash-4.2-patches/bash42-$$num; \
		done; \
		cd ..; \
	fi

clean:
	rm -rf bash-4.2 bash-4.2-patched bash-20120427 bash-4.2.47 bash-4.2.48 \
		bash-4.2.49 bash-4.2.50 bash-4.2.51 bash-4.2.52

extract:
	tar zxf bash-4.2.tar.gz

patch:
	cp -R bash-4.2 bash-4.2-patched; \
	ln -s bash-4.2-patched bash-20120427; \
	ln -s bash-4.2-patched bash-4.2.47; \
	ln -s bash-4.2-patched bash-4.2.48; \
	ln -s bash-4.2-patched bash-4.2.49; \
	ln -s bash-4.2-patched bash-4.2.50; \
	ln -s bash-4.2-patched bash-4.2.51; \
	ln -s bash-4.2-patched bash-4.2.52; \
	cd patches-4.2; \
	for file in $$(ls); \
	do \
		echo "applying $$file..."; \
		cat $$file|patch -p0; \
	done
	cd ..

build:
	cd bash-4.2-patched; \
	./configure; \
	make; \
	cd ..

check:
	if [ ! -e "bashcheck" ]; \
	then \
		wget -nv https://github.com/hannob/bashcheck/raw/master/bashcheck --no-check-certificate; \
		chmod a+x bashcheck; \
	fi; \
	./bashcheck `pwd`/bash-4.2-patched/bash