- Changed sha256sum (1) file verification logic to use dgst(1SSL) instead.

- Removed support for particularly pathnames with whitespace or tab cha-
racters. If you have whitespaces in your pathnames anyway, the script will
methodically destroy every single file on your disk(s).

11 files changed, 178 insertions, 165 deletions

diff --git a/000.fetch_git.build b/000.fetch_git.build
index d8a891a4..d66f195e 100644
--- a/000.fetch_git.build
+++ b/000.fetch_git.build
@@ -1,8 +1,8 @@
 # Git clone what we need.
-fetch_git cbb-gcc-${PKG_GCC_VERSION}	"${GITROOT}/cbb/cbb-gcc-${PKG_GCC_VERSION}";
-fetch_git lazy				"${GITROOT}/lazy";
-fetch_git mmglue			"${GITROOT}/mmglue";
-fetch_git portage			"${GITROOT}/ports/portage";
-fetch_git psxstub			"${GITROOT}/psxstub";
+fetch_git cbb-gcc-${PKG_GCC_VERSION}	${GITROOT}/cbb/cbb-gcc-${PKG_GCC_VERSION};
+fetch_git lazy				${GITROOT}/lazy;
+fetch_git mmglue			${GITROOT}/mmglue;
+fetch_git portage			${GITROOT}/ports/portage;
+fetch_git psxstub			${GITROOT}/psxstub;
 
 # vim:filetype=sh
diff --git a/003.psxstub.build b/003.psxstub.build
index 37d4fcdd..81eb8ed8 100644
--- a/003.psxstub.build
+++ b/003.psxstub.build
@@ -1,9 +1,9 @@
 if is_build_script_done finished; then
         exit 212;
-elif [ "${TARGET}" = "i686-nt32-midipix" ]\
-|| [ "${TARGET}" = "x86_64-nt64-midipix" ]; then
+elif [ "x${TARGET}" = "xi686-nt32-midipix" ]\
+|| [ "x${TARGET}" = "xx86_64-nt64-midipix" ]; then
 	cd psxstub;
-	make ${MAKEFLAGS} DESTDIR="${PREFIX_TARGET}" TARGET="${TARGET}" install;
+	make ${MAKEFLAGS} DESTDIR=${PREFIX_TARGET} TARGET=${TARGET} install;
 	set_build_script_done finished;
 fi;
 
diff --git a/006.musl.build b/006.musl.build
index b3b9ec6f..201eb598 100644
--- a/006.musl.build
+++ b/006.musl.build
@@ -1,46 +1,45 @@
-export lz_arch="${ARCH}" lz_cflags_debug="-O2" lz_target="${TARGET}";
+export lz_arch=${ARCH} lz_cflags_debug=-O2 lz_target=${TARGET};
 
 if is_build_script_done finished; then
         exit 212;
 elif [ "x${3}" = "xno-complex" ]; then
 	# Musl: build (no-complex)
-	_install="install_no_complex";
-	set_build_dir "musl-${PKG_MUSL_VERSION}" "${TARGET}-${3}";
-	fetch "http://www.musl-libc.org/releases/musl-${PKG_MUSL_VERSION}.tar.gz"	\
-		"${PKG_MUSL_SHA256SUM}";
+	_install=install_no_complex;
+	set_build_dir musl-${PKG_MUSL_VERSION} ${TARGET}-${3};
+	fetch http://www.musl-libc.org/releases/musl-${PKG_MUSL_VERSION}.tar.gz	\
+		${PKG_MUSL_SHA256SUM};
 	if ! is_build_script_done extracted; then
-		rm_if_exists "musl-${PKG_MUSL_VERSION}";
-		tar -xf "musl-${PKG_MUSL_VERSION}.tar.gz";
-		cp -R mmglue/* "musl-${PKG_MUSL_VERSION}/";
+		rm_if_exists musl-${PKG_MUSL_VERSION};
+		tar -xf musl-${PKG_MUSL_VERSION}.tar.gz;
+		cp -R mmglue/* musl-${PKG_MUSL_VERSION}/;
 		set_build_script_done extracted -configured;
 	fi;
 elif [ "x${3}" = "xnative" ]; then
 	# Musl: build (full)
-	_destdir="${PREFIX_NATIVE}";
-	_install="install";
-	set_build_dir "musl-${PKG_MUSL_VERSION}" "${3}";
+	_destdir=${PREFIX_NATIVE};
+	_install=install;
+	set_build_dir musl-${PKG_MUSL_VERSION} ${3};
 else
 	# Musl: build (full)
-	_install="install";
-	set_build_dir "musl-${PKG_MUSL_VERSION}" "${TARGET}";
+	_install=install;
+	set_build_dir musl-${PKG_MUSL_VERSION} ${TARGET};
 fi;
 if ! is_build_script_done configured; then
-	rm_if_exists -m -c "${_build_dir}";
+	rm_if_exists -m -c ${_build_dir};
 	../lazy/lazy					\
-		-a "${ARCH}"				\
+		-a ${ARCH}				\
 		-c gcc					\
-		-f "${_destdir:-${PREFIX_TARGET}}"	\
+		-f ${_destdir:-${PREFIX_TARGET}}	\
 		-n musl					\
-		-p "../musl-${PKG_MUSL_VERSION}"	\
-		-t "${lz_target}"			\
+		-p ../musl-${PKG_MUSL_VERSION}		\
+		-t ${lz_target}				\
 		-x config;
 	set_build_script_done configured -built;
 else
-	cd "${_build_dir}";
+	cd ${_build_dir};
 fi;
 if ! is_build_script_done built; then
-	./lazy					\
-		-e "${_install}"		\
+	./lazy	-e ${_install}				\
 		-x build;
 	set_build_script_done built finished;
 fi;
diff --git a/007.gcc.full.build b/007.gcc.full.build
index c3343fed..68f7a155 100644
--- a/007.gcc.full.build
+++ b/007.gcc.full.build
@@ -5,8 +5,8 @@ if is_build_script_done finished; then
 elif [ "x${3}" = "xruntime" ]\
 ||   [ "x${3}" = "xfull" ]; then
 	export CFLAGS="${GCCFLAGS}" CXXFLAGS="${GCCFLAGS}";
-	set_build_dir "cbb-gcc-${PKG_GCC_VERSION}" "${TARGET}";
-	cd "${_build_dir}";
+	set_build_dir cbb-gcc-${PKG_GCC_VERSION} ${TARGET};
+	cd ${_build_dir};
 	if [ "x${3}" = "xruntime" ]; then
 		# GCC, compiler runtime.
 		if ! is_build_script_done built; then
@@ -39,20 +39,20 @@ elif [ "x${3}" = "xruntime" ]\
 else
 	if [ "x${3}" = "xstage1" ]; then
 		# GCC, stage1.
-		set_build_dir "cbb-gcc-${PKG_GCC_VERSION}" "${TARGET}";
-		export	cbb_ldflags_for_target="--sysroot=${PREFIX_TARGET}"	\
-			cbb_sysroot_for_libgcc="${PREFIX_TARGET}"		\
-			cbb_target="${TARGET}"					\
-			cbb_neutral_libiberty="no"				\
-			cbb_xgcc_for_specs="${WORKDIR}/${_build_dir}/gcc/xgcc";
+		set_build_dir cbb-gcc-${PKG_GCC_VERSION} ${TARGET};
+		export	cbb_ldflags_for_target=--sysroot=${PREFIX_TARGET}	\
+			cbb_sysroot_for_libgcc=${PREFIX_TARGET}			\
+			cbb_target=${TARGET}					\
+			cbb_neutral_libiberty=no				\
+			cbb_xgcc_for_specs=${WORKDIR}/${_build_dir}/gcc/xgcc;
 		GCCTARGET_FLAGS="-DIN_TARGET_LIBRARY_BUILD --sysroot=${PREFIX_TARGET}";
 	elif [ "x${3}" = "xnative" ]; then
 		# GCC, native.
-		set_build_dir "cbb-gcc-${PKG_GCC_VERSION}" "native";
-		export 	cbb_ldflags_for_target="--sysroot=${PREFIX_NATIVE}"	\
-			cbb_sysroot_for_libgcc="${PREFIX_NATIVE}"		\
-			cbb_target="${TARGET}"					\
-			cbb_xgcc_for_specs="${TARGET}-gcc";
+		set_build_dir cbb-gcc-${PKG_GCC_VERSION} native;
+		export 	cbb_ldflags_for_target=--sysroot=${PREFIX_NATIVE}	\
+			cbb_sysroot_for_libgcc=${PREFIX_NATIVE}			\
+			cbb_target=${TARGET}					\
+			cbb_xgcc_for_specs=${TARGET}-gcc;
 		GCCTARGET_FLAGS="-DIN_TARGET_LIBRARY_BUILD --sysroot=${PREFIX_NATIVE}";
 	fi;
 	GCCFLAGS="${CFLAGS:+${CFLAGS} }--include $(readlink -f ${WORKDIR}/cbb-gcc-${PKG_GCC_VERSION}/libc/cbb-musl-pe.h)";
@@ -62,14 +62,14 @@ else
 	export CFLAGS CXXFLAGS CFLAGS_FOR_BUILD CPPFLAGS_FOR_BUILD CXXFLAGS_FOR_BUILD CFLAGS_FOR_TARGET XGCC_FLAGS_FOR_TARGET CPPFLAGS_FOR_TARGET CXXFLAGS_FOR_TARGET LIBCFLAGS_FOR_TARGET;
 	if ! is_build_script_done configured; then
 		if [ "x${3}" = "xstage1" ]; then
-			mkdir -p "${PREFIX_TARGET}/include";
-			[ \! -d "${PREFIX_TARGET}/usr" ] &&		\
-				ln -s . "${PREFIX_TARGET}/usr";
+			mkdir -p ${PREFIX_TARGET}/include;
+			[ \! -d ${PREFIX_TARGET}/usr ] &&		\
+				ln -s . ${PREFIX_TARGET}/usr;
 			_configure_args="--prefix=${PREFIX} --with-sysroot=${PREFIX_TARGET}";
 		elif [ "x${3}" = "xnative" ]; then
-			mkdir -p "${PREFIX_NATIVE}/${TARGET}";
-			if [ \! -d "${PREFIX_NATIVE}/${TARGET}/usr" ]; then
-				ln -s . "${PREFIX_NATIVE}/${TARGET}/usr";
+			mkdir -p ${PREFIX_NATIVE}/${TARGET};
+			if [ \! -d ${PREFIX_NATIVE}/${TARGET}/usr ]; then
+				ln -s . ${PREFIX_NATIVE}/${TARGET}/usr;
 			fi;
 			_configure_args="			\
 				--host=x86_64-nt64-midipix	\
@@ -80,8 +80,8 @@ else
 				--with-mpfr=${PREFIX_NATIVE}	\
 				--with-sysroot=";
 		fi;
-		rm_if_exists -m -c "${_build_dir}";
-		"../cbb-gcc-${PKG_GCC_VERSION}/configure"	\
+		rm_if_exists -m -c ${_build_dir};
+		../cbb-gcc-${PKG_GCC_VERSION}/configure		\
 			--disable-bootstrap			\
 			--disable-libmudflap			\
 			--disable-multilib			\
@@ -107,7 +107,7 @@ else
 			${_configure_args};
 		set_build_script_done configured -built;
 	else
-		cd "${_build_dir}";
+		cd ${_build_dir};
 	fi;
 	if ! is_build_script_done built; then
 		if [ "x${3}" = "xstage1" ]; then
@@ -124,7 +124,7 @@ else
 		if [ "x${3}" = "xstage1" ]; then
 			make ${MAKEFLAGS} install-gcc;
 		elif [ "x${3}" = "xnative" ]; then
-			make -j18 DESTDIR="${PREFIX_NATIVE}" install;
+			make -j18 DESTDIR=${PREFIX_NATIVE} install;
 		fi;
 		set_build_script_done installed finished;
 	fi;
diff --git a/100.perk.build b/100.perk.build
index 8ad9c101..f966813c 100644
--- a/100.perk.build
+++ b/100.perk.build
@@ -1,7 +1,7 @@
 if is_build_script_done finished; then
         exit 212;
 else
-	fetch_git perk "${GITROOT}/perk";
+	fetch_git perk ${GITROOT}/perk;
 fi;
 if ! is_build_script_done configured1; then
 	rm_if_exists -m -c perk-build;
@@ -15,23 +15,22 @@ if ! is_build_script_done built1; then
 	set_build_script_done built1 -installed1;
 fi;
 if ! is_build_script_done installed1; then
-	make DESTDIR="${PREFIX}" install;
+	make DESTDIR=${PREFIX} install;
 	set_build_script_done installed1 -configured2;
 fi;
 if ! is_build_script_done configured2; then
-	rm_if_exists -m "../perk-build-${TARGET}";
-	cd "../perk-build-${TARGET}";
-	../perk/configure --target="${TARGET}";
+	rm_if_exists -m -c ../perk-build-${TARGET};
+	../perk/configure --target=${TARGET};
 	set_build_script_done configured2 -built2;
 else
-	cd "../perk-build-${TARGET}";
+	cd ../perk-build-${TARGET};
 fi;
 if ! is_build_script_done built2; then
 	make;
 	set_build_script_done built2 -installed2;
 fi;
 if ! is_build_script_done installed2; then
-	make DESTDIR="${PREFIX_NATIVE}" install;
+	make DESTDIR=${PREFIX_NATIVE} install;
 	set_build_script_done installed2 finished;
 fi;
 
diff --git a/101.gmp.build b/101.gmp.build
index 67b2e51b..1a09328c 100644
--- a/101.gmp.build
+++ b/101.gmp.build
@@ -2,66 +2,66 @@ libelf_install_post() {
 	rm -f lib/libelf.def || return 1;
 	echo EXPORTS > lib/libelf.def || return 2;
 	perk -e lib/libelf.so >> lib/libelf.def || return 3;
-	"${HOST_NATIVE}-dlltool"			\
+	${HOST_NATIVE}-dlltool			\
 		--output-lib lib/libelf.lib.a	\
 		--dllname libelf.so		\
 		--input-def lib/libelf.def || return 4;
-	cp lib/libelf.lib.a "${PREFIX}/lib" || return 5;
+	cp lib/libelf.lib.a ${PREFIX}/lib || return 5;
 };
 
-parse_with_pkg_name "${2}" 										\
-	"https://gmplib.org/download/gmp/gmp-${PKG_GMP_VERSION}.tar.bz2"				\
-		"_configure_extra_args=--disable-assembly:_prefix_extra=${PREFIX_TARGET}"		\
-	"ftp://ftp.gnu.org/gnu/mpfr/mpfr-${PKG_MPFR_VERSION}.tar.bz2"					\
-		"_configure_extra_args=--with-gmp=${PREFIX_NATIVE}:_prefix_extra=${PREFIX_TARGET}"	\
-	"ftp://ftp.gnu.org/gnu/mpc/mpc-${PKG_MPC_VERSION}.tar.gz"					\
-		"_configure_extra_args=--with-gmp=${PREFIX_NATIVE},--with-mpfr=${PREFIX_NATIVE}:_prefix_extra=${PREFIX_TARGET}"\
-	"http://www.mr511.de/software/libelf-${PKG_LIBELF_VERSION}.tar.gz"				\
-		"_no_libtool_midipix=1:_prefix=${PREFIX_NATIVE}:CC=${HOST_NATIVE}-gcc:DESTDIR="		\
-	"ftp://sourceware.org/pub/binutils/snapshots/binutils-${PKG_BINUTILS_VERSION}.tar.bz2"		\
-		"_configure_extra_args=--with-libelf=${PREFIX_NATIVE},--with-gmp=${PREFIX_NATIVE},--with-mpc=${PREFIX_NATIVE},--with-mpfr=${PREFIX_NATIVE},--with-sysroot=/";
+parse_with_pkg_name ${2} 										\
+	https://gmplib.org/download/gmp/gmp-${PKG_GMP_VERSION}.tar.bz2					\
+		_configure_extra_args=--disable-assembly:_prefix_extra=${PREFIX_TARGET}			\
+	ftp://ftp.gnu.org/gnu/mpfr/mpfr-${PKG_MPFR_VERSION}.tar.bz2					\
+		_configure_extra_args=--with-gmp=${PREFIX_NATIVE}:_prefix_extra=${PREFIX_TARGET}	\
+	ftp://ftp.gnu.org/gnu/mpc/mpc-${PKG_MPC_VERSION}.tar.gz						\
+		_configure_extra_args=--with-gmp=${PREFIX_NATIVE},--with-mpfr=${PREFIX_NATIVE}:_prefix_extra=${PREFIX_TARGET}\
+	http://www.mr511.de/software/libelf-${PKG_LIBELF_VERSION}.tar.gz				\
+		_no_libtool_midipix=1:_prefix=${PREFIX_NATIVE}:CC=${HOST_NATIVE}-gcc:DESTDIR=		\
+	ftp://sourceware.org/pub/binutils/snapshots/binutils-${PKG_BINUTILS_VERSION}.tar.bz2		\
+		_configure_extra_args=--with-libelf=${PREFIX_NATIVE},--with-gmp=${PREFIX_NATIVE},--with-mpc=${PREFIX_NATIVE},--with-mpfr=${PREFIX_NATIVE},--with-sysroot=/;
 
 if is_build_script_done finished; then
         exit 212;
 else
-	fetch "${_pkg_url}" "${_pkg_sha256sum}";
+	fetch ${_pkg_url} ${_pkg_sha256sum};
 fi;
 if ! is_build_script_done extracted; then
-	rm_if_exists "${_pkg_subdir}";
-	tar -axf "${_pkg_fname}";
+	rm_if_exists ${_pkg_subdir};
+	tar -axf ${_pkg_fname};
 	set_build_script_done extracted -patched;
 fi;
 if ! is_build_script_done patched; then
-	patch -d "${_pkg_subdir}" -p1		\
-		< "portage/${_pkg_subdir}.midipix.patch";
+	patch -d ${_pkg_subdir} -p1		\
+		< portage/${_pkg_subdir}.midipix.patch;
 	if [ ${_no_libtool_midipix:-0} -eq 0 ]; then
-		cp portage/libtool.midipix "${_pkg_subdir}/";
+		cp portage/libtool.midipix ${_pkg_subdir}/;
 	fi;
 	set_build_script_done patched -configured;
 fi;
 if ! is_build_script_done configured; then
-	rm_if_exists -c -m "${_pkg_subdir}-build-native${3:+-${3}}";
+	rm_if_exists -c -m ${_pkg_subdir}-build-native${3:+-${3}};
 	run_configure_with_extra_args		\
-	"../${_pkg_subdir}/configure"		\
+	../${_pkg_subdir}/configure		\
 		"${_configure_extra_args}"	\
-		--host="${HOST_NATIVE}"		\
+		--host=${HOST_NATIVE}		\
 		--prefix=${_prefix:-/}		\
-		--target="${TARGET}";
+		--target=${TARGET};
 	set_build_script_done configured -built;
 else
-	cd "${_pkg_subdir}-build-native${3:+-${3}}";
+	cd ${_pkg_subdir}-build-native${3:+-${3}};
 fi;
 if ! is_build_script_done built; then
 	make;
 	set_build_script_done configured built -installed1;
 fi;
 if ! is_build_script_done installed1; then
-	make DESTDIR="${PREFIX_NATIVE}" install;
+	make DESTDIR=${PREFIX_NATIVE} install;
 	set_build_script_done configured installed1 -installed2 -finished;
 fi;
-if [ -n "${_prefix_extra}" ]; then
+if [ -n ${_prefix_extra} ]; then
 	if ! is_build_script_done installed2; then
-		make DESTDIR="${_prefix_extra}" install;
+		make DESTDIR=${_prefix_extra} install;
 		set_build_script_done configured installed2 -finished;
 	fi;
 fi;
diff --git a/200.coreutils.build b/200.coreutils.build
index 4a43e3b9..2eaf4428 100644
--- a/200.coreutils.build
+++ b/200.coreutils.build
@@ -1,51 +1,51 @@
 export CFLAGS="${CFLAGS_PACKAGES}";
-parse_with_pkg_name "${2}"								\
-	"https://ftp.gnu.org/gnu/coreutils/coreutils-${PKG_COREUTILS_VERSION}.tar.xz" ""	\
-	"https://ftp.gnu.org/gnu/diffutils/diffutils-${PKG_DIFFUTILS_VERSION}.tar.xz" ""	\
-	"http://alpha.gnu.org/gnu/findutils/findutils-${PKG_FINDUTILS_VERSION}.tar.gz"		\
-		"CFLAGS=${CFLAGS:+${CFLAGS} }-Dendpwent=setpwent"				\
-	"https://ftp.gnu.org/gnu/patch/patch-${PKG_PATCH_VERSION}.tar.gz" ""			\
-	"https://ftp.gnu.org/gnu/gawk/gawk-${PKG_GAWK_VERSION}.tar.xz" ""			\
-	"https://ftp.gnu.org/gnu/bash/bash-${PKG_BASH_VERSION}.tar.gz"				\
-		"_configure_extra_args=--without-bash-malloc"					\
-	"https://ftp.gnu.org/gnu/make/make-${PKG_MAKE_VERSION}.tar.bz2" ""			\
-	"https://ftp.gnu.org/gnu/grep/grep-${PKG_GREP_VERSION}.tar.xz" ""			\
-	"https://ftp.gnu.org/gnu/sed/sed-${PKG_SED_VERSION}.tar.bz2" ""				\
-	"ftp://sourceware.org/pub/binutils/snapshots/binutils-${PKG_BINUTILS_VERSION}.tar.bz2" "";
+parse_with_pkg_name ${2}								\
+	https://ftp.gnu.org/gnu/coreutils/coreutils-${PKG_COREUTILS_VERSION}.tar.xz ""	\
+	https://ftp.gnu.org/gnu/diffutils/diffutils-${PKG_DIFFUTILS_VERSION}.tar.xz ""	\
+	http://alpha.gnu.org/gnu/findutils/findutils-${PKG_FINDUTILS_VERSION}.tar.gz	\
+		"CFLAGS=${CFLAGS:+${CFLAGS} }-Dendpwent=setpwent"			\
+	https://ftp.gnu.org/gnu/patch/patch-${PKG_PATCH_VERSION}.tar.gz ""		\
+	https://ftp.gnu.org/gnu/gawk/gawk-${PKG_GAWK_VERSION}.tar.xz ""			\
+	https://ftp.gnu.org/gnu/bash/bash-${PKG_BASH_VERSION}.tar.gz			\
+		_configure_extra_args=--without-bash-malloc				\
+	https://ftp.gnu.org/gnu/make/make-${PKG_MAKE_VERSION}.tar.bz2 ""		\
+	https://ftp.gnu.org/gnu/grep/grep-${PKG_GREP_VERSION}.tar.xz ""			\
+	https://ftp.gnu.org/gnu/sed/sed-${PKG_SED_VERSION}.tar.bz2 ""			\
+	ftp://sourceware.org/pub/binutils/snapshots/binutils-${PKG_BINUTILS_VERSION}.tar.bz2 "";
 
 if is_build_script_done finished; then
         exit 212;
 else
-	fetch "${_pkg_url}" "${_pkg_sha256sum}";
-	if [ "${_pkg_name}" = "binutils" ]\
-	&& [ "${3}" = "host" ]; then
+	fetch ${_pkg_url} ${_pkg_sha256sum};
+	if [ "x${_pkg_name}" = "xbinutils" ]\
+	&& [ "x${3}" = "xhost" ]; then
 		_configure_args="--disable-werror,--prefix=${PREFIX},--with-sysroot=${PREFIX_TARGET}";
-		_no_config_cache=${_no_prefix:=1}; _target="${TARGET}";
+		_no_config_cache=${_no_prefix:=1}; _target=${TARGET};
 	else
 		_configure_args="-C,--host=${HOST_NATIVE},--prefix=${_configure_extra_args:+,${_configure_extra_args}}";
 	fi;
 fi;
 if ! is_build_script_done extracted; then
-	rm_if_exists "${_pkg_subdir}";
-	tar -axf "${_pkg_fname}";
+	rm_if_exists ${_pkg_subdir};
+	tar -axf ${_pkg_fname};
 	set_build_script_done extracted -patched;
 fi;
 if ! is_build_script_done patched; then
-	patch -d "${_pkg_subdir}" -p1			\
-		< "portage/${_pkg_subdir}.midipix.patch";
+	patch -d ${_pkg_subdir} -p1			\
+		< portage/${_pkg_subdir}.midipix.patch;
 	set_build_script_done patched -configured;
 fi;
 if ! is_build_script_done configured; then
-	rm_if_exists -c -m "${_pkg_subdir}-build-${_target:-native}";
+	rm_if_exists -c -m ${_pkg_subdir}-build-${_target:-native};
 	[ ${_no_config_cache:-0} -eq 0 ] &&\
-		cp -a "../portage/config.cache" .;
+		cp -a ../portage/config.cache .;
 	run_configure_with_extra_args			\
-		"../${_pkg_subdir}/configure"		\
+		../${_pkg_subdir}/configure		\
 		"${_configure_args}"			\
-		--target="${TARGET}";
+		--target=${TARGET};
 	set_build_script_done configured -built;
 else
-	cd "${_pkg_subdir}-build-${_target:-native}";
+	cd ${_pkg_subdir}-build-${_target:-native};
 fi;
 if ! is_build_script_done built; then
 	make ${MAKEFLAGS};
@@ -53,7 +53,7 @@ if ! is_build_script_done built; then
 fi;
 if ! is_build_script_done installed; then
 	if [ ${_no_prefix:-0} -eq 0 ]; then
-		make ${MAKEFLAGS} DESTDIR="${PREFIX_NATIVE}" install;
+		make ${MAKEFLAGS} DESTDIR=${PREFIX_NATIVE} install;
 	else
 		make ${MAKEFLAGS} install;
 	fi;
diff --git a/207.libz.build b/207.libz.build
index 231baf2f..2c29870c 100644
--- a/207.libz.build
+++ b/207.libz.build
@@ -1,31 +1,31 @@
 if is_build_script_done finished; then
         exit 212;
 elif [ "x${2}" = "xlibz" ]; then
-	_pkg_url="https://sortix.org/libz/release/libz-${PKG_LIBZ_VERSION}.tar.gz";
-	_pkg_fname="${_pkg_url##*/}";
-	_pkg_sha256sum="${PKG_LIBZ_SHA256SUM}";
-	_pkg_subdir="${2}-${PKG_LIBZ_VERSION}";
+	_pkg_url=https://sortix.org/libz/release/libz-${PKG_LIBZ_VERSION}.tar.gz;
+	_pkg_fname=${_pkg_url##*/};
+	_pkg_sha256sum=${PKG_LIBZ_SHA256SUM};
+	_pkg_subdir=${2}-${PKG_LIBZ_VERSION};
 elif [ "x${2}" = "xgzip" ]; then
-	_pkg_url="https://ftp.gnu.org/gnu/gzip/gzip-${PKG_GZIP_VERSION}.tar.gz";
-	_pkg_fname="${_pkg_url##*/}";
-	_pkg_sha256sum="${PKG_GZIP_SHA256SUM}";
-	_pkg_subdir="${2}-${PKG_GZIP_VERSION}";
+	_pkg_url=https://ftp.gnu.org/gnu/gzip/gzip-${PKG_GZIP_VERSION}.tar.gz;
+	_pkg_fname=${_pkg_url##*/};
+	_pkg_sha256sum=${PKG_GZIP_SHA256SUM};
+	_pkg_subdir=${2}-${PKG_GZIP_VERSION};
 fi;
-fetch "${_pkg_url}" "${_pkg_sha256sum}";
+fetch ${_pkg_url} ${_pkg_sha256sum};
 if ! is_build_script_done extracted; then
-	rm_if_exists "${_pkg_fname%%.tar*}";
-	tar -axf "${_pkg_fname}";
+	rm_if_exists ${_pkg_fname%%.tar*};
+	tar -axf ${_pkg_fname};
 	set_build_script_done extracted -patched;
 fi;
 if ! is_build_script_done configured; then
-	set_build_dir "${_pkg_fname%%-*}" "${TARGET}";
-	rm_if_exists -c -m "${_build_dir}";
-	cp -a "../portage/config.cache" .;
+	set_build_dir ${_pkg_fname%%-*} ${TARGET};
+	rm_if_exists -c -m ${_build_dir};
+	cp -a ../portage/config.cache .;
 	CFLAGS="${CFLAGS_PACKAGES}"		\
-	"../${_pkg_subdir}/configure"		\
-		--host="${HOST_NATIVE}"		\
-		--prefix=""			\
-		--target="${TARGET}";
+	../${_pkg_subdir}/configure		\
+		--host=${HOST_NATIVE}		\
+		--prefix=			\
+		--target=${TARGET};
 	set_build_script_done configured -built;
 fi;
 if ! is_build_script_done built; then
@@ -33,15 +33,15 @@ if ! is_build_script_done built; then
 		make -j18;
 	elif [ "x${3}" = "xgzip" ]; then
 		make clean;
-		make CFLAGS="-g3 -O0 -I${PREFIX_NATIVE}/include" LDFLAGS="--sysroot=${PREFIX_NATIVE}";
+		make CFLAGS="-g3 -O0 -I${PREFIX_NATIVE}/include" LDFLAGS=--sysroot=${PREFIX_NATIVE};
 	fi;
 	set_build_script_done built -installed;
 fi;
 if ! is_build_script_done installed; then
 	if [ "x${3}" = "xlibz" ]; then
-		make -j18 DESTDIR="${PREFIX_NATIVE}" install;
+		make -j18 DESTDIR=${PREFIX_NATIVE} install;
 	elif [ "x${3}" = "xgzip" ]; then
-		cp -a gunzip gzip zcat "${PREFIX_NATIVE}/bin";
+		cp -a gunzip gzip zcat ${PREFIX_NATIVE}/bin;
 	fi;
 	set_build_script_done installed finished;
 fi;
diff --git a/build.sh b/build.sh
index e4931044..6cb75988 100755
--- a/build.sh
+++ b/build.sh
@@ -3,7 +3,7 @@
 {
 unset AR ARFLAGS CC CFLAGS CXX CXXFLAGS LD LDFLAGS;
 . ./build.vars; . ./build.subr;
-check_prereqs git make sed tar wget;
+check_prereqs git make openssl sed tar wget;
 log_msg info "Build started by ${USER}@$(hostname).";
 #trap
 (set -o errexit; mkdir -p "${PREFIX}" "${WORKDIR}");
diff --git a/build.subr b/build.subr
index 492706de..2020d217 100644
--- a/build.subr
+++ b/build.subr
@@ -1,8 +1,12 @@
+#
+# set -o errexit is assumed.
+#
+
 TIMESTAMP_FMT="${TIMESTAMP_FMT:-"%Y/%m/%d %H:%M:%S"}";
 
 check_prereqs() {
 	for _cmd in "$@"; do
-		if ! command -v "${_cmd}" >/dev/null; then
+		if ! command -v ${_cmd} >/dev/null; then
 			log_msg fail "Error: missing prerequisite command \`${_cmd}";
 			exit 1;
 		fi;
@@ -14,25 +18,30 @@ date() {
 };
 
 fetch() {
-	wget --no-check-certificate -N "${1}";
-	if [ $# -eq 2 ]\
-	&& ! printf "${2} ${1##*/}\n" | sha256sum -c --status; then
-		log_msg fail "Error: sha256sum mismatch for URL \`${1##*/}'.";
+	wget --no-check-certificate -N ${1};
+	if [ $# -eq 2 ] && ! compare_hash ${1##*/} ${2}; then
+		log_msg fail "Error: hash mismatch for URL \`${1##*/}'.";
 		exit 1;
 	fi;
 };
 
 fetch_git() {
-	if [ -d "${1}" ]; then
-		(cd "${1}" && git pull origin main);
+	if [ -d ${1} ]; then
+		(cd ${1} && git pull origin main);
 	else
-		git clone "${2}" "${1}";
+		git clone ${2} ${1};
 	fi;
 };
 
+compare_hash() {
+	_hash_cmp=${2}; set -- $(openssl dgst -sha256 ${1});
+	shift $((${#}-1)); set -- ${1} ${_hash_cmp}; unset _hash_cmp;
+	[ "x${1}" = "x${2}" ];
+};
+
 is_build_script_done() {
-	_script_fname="${SCRIPT_FNAME##*/}";
-	if [ -f "${WORKDIR}/.${_script_fname%.build}.${1}" ]; then
+	_script_fname=${SCRIPT_FNAME##*/};
+	if [ -f ${WORKDIR}/.${_script_fname%.build}.${1} ]; then
 		unset script_fname;
 		return 0;
 	else
@@ -41,13 +50,13 @@ is_build_script_done() {
 	fi;
 };
 set_build_script_done() {
-	_script_fname="${SCRIPT_FNAME##*/}";
-	_done_fname="${WORKDIR}/.${_script_fname%.build}";
+	_script_fname=${SCRIPT_FNAME##*/};
+	_done_fname=${WORKDIR}/.${_script_fname%.build};
 	while [ $# -ge 1 ]; do
 		if [ "x${1#-}" != "x${1}" ]; then
-			rm -f "${_done_fname}.${1#-}";
+			rm -f ${_done_fname}.${1#-};
 		else
-			touch "${_done_fname}.${1}";
+			touch ${_done_fname}.${1};
 			log_msg info "Finished build step ${1} of build script \`${_script_fname}'.";
 		fi; shift;
 	done;
@@ -55,8 +64,8 @@ set_build_script_done() {
 };
 
 log_msg() {
-	_lvl="${1}"; shift;
-	case "${_lvl}" in
+	_lvl=${1}; shift;
+	case ${_lvl} in
 		fail) printf "\033[91m"; ;;
 		info) printf "\033[97m"; ;;
 		succ) printf "\033[92m"; ;;
@@ -70,17 +79,17 @@ log_msg() {
 };
 
 parse_with_pkg_name() {
-	_pkg_name="${1}"; shift;
+	_pkg_name=${1}; shift;
 	while [ $# -ge 0 ]; do
-		_pkg_url="${1}"; _envvs="${2}"; _pkg_fname="${_pkg_url##*/}";
+		_pkg_url=${1}; _envvs="${2}"; _pkg_fname=${_pkg_url##*/};
 		if [ "x${_pkg_fname%%-*}" = "x${_pkg_name}" ]; then
 			_IFS="${IFS}"; IFS=:;
 			for _envv in ${_envvs}; do
 				export ${_envv};
 			done; IFS="${_IFS}"; unset _envvs _envv;
-			_pkg_subdir="${_pkg_fname%%.tar*}";
-			eval _pkg_sha256sum=\""\${PKG_$(echo "${_pkg_name}" |\
-				tr a-z A-Z)_SHA256SUM}"\";
+			_pkg_subdir=${_pkg_fname%%.tar*};
+			eval _pkg_sha256sum=\${PKG_$(echo "${_pkg_name}" |\
+				tr a-z A-Z)_SHA256SUM};
 			return;
 		fi; shift 2;
 	done;
@@ -90,30 +99,30 @@ parse_with_pkg_name() {
 rm_if_exists() {
 	while [ $# -gt 1 ]; do [ "x${1%[a-z]}" = "x-" ] &&\
 		eval _${1#-}flag=1; shift; done;
-	_dir="${1}";
-	if [ -d "${1}" ]; then
-		rm -rf "${1}" || return 1;
+	_dir=${1};
+	if [ -d ${1} ]; then
+		rm -rf ${1} || return 1;
 	fi;
 	if [ ${_mflag:-0} -eq 1 ]; then
-		unset _mflag; mkdir "${1}" || return 2;
+		unset _mflag; mkdir ${1} || return 2;
 	fi;
 	if [ ${_cflag:-0} -eq 1 ]; then
-		unset _cflag; cd "${1}" || return 3;
+		unset _cflag; cd ${1} || return 3;
 	fi;
 };
 
 run_configure_with_extra_args() {
-	_IFS="${IFS}"; IFS=","; _script="${1}"; _extra_args="${2}";
-	shift 2; "${_script}" "${@}" ${_extra_args}; IFS="${_IFS}";
+	_IFS="${IFS}"; IFS=","; _script=${1}; _extra_args="${2}";
+	shift 2; ${_script} "${@}" ${_extra_args}; IFS="${_IFS}";
 	unset _script _extra_args;
 };
 
 set_build_dir() {
-	export _build_dir="${1}-build-${2}";
+	export _build_dir=${1}-build-${2};
 };
 
 set_env_vars() {
-	_val="${1}"; shift;
+	_val=${1}; shift;
 	while [ $# -ge 1 ]; do
 		export "${1}=${_val}"; shift;
 	done; unset _val;
diff --git a/build.vars b/build.vars
index 02337b28..f12a94c7 100644
--- a/build.vars
+++ b/build.vars
@@ -1,3 +1,9 @@
+#
+# WARNING: Do _NOT_ use whitespaces (` ') or tab (`	')
+# characters in any of the variables below save for MAKEFLAGS,
+# PATH, and TIMESTAMP_FMT.
+#
+
 : ${ARCH:=nt64};
 : ${CFLAGS_PACKAGES:=-g3 -O0};
 : ${GITROOT:=git://midipix.org};