+# Cross-compile GNU nano (editor).
+stage3-chroot/usr/bin/nano: nano-$(NANO_VERSION).tar.gz
+ rm -rf nano-$(NANO_VERSION)
+ tar -zxf $^
+ cd nano-$(NANO_VERSION) && \
+ PATH=$(ROOT)/fixed-gcc:$$PATH \
+ LDFLAGS=-L$(ROOT)/stage3-chroot/usr/lib64 \
+ ./configure \
+ --host=riscv64-unknown-linux-gnu \
+ --prefix=/usr --libdir=/usr/lib64
+ cd nano-$(NANO_VERSION) && PATH=$(ROOT)/fixed-gcc:$$PATH make
+ cd nano-$(NANO_VERSION) && make install DESTDIR=$(ROOT)/stage3-chroot
+
+nano-$(NANO_VERSION).tar.gz:
+ rm -f $@ $@-t
+ wget -O $@-t https://www.nano-editor.org/dist/v2.6/nano-$(NANO_VERSION).tar.gz
+ mv $@-t $@
+
+# Cross-compile GNU grep.
+stage3-chroot/usr/bin/grep: grep-$(GREP_VERSION).tar.xz
+ rm -rf grep-$(GREP_VERSION)
+ tar -Jxf $^
+ cd grep-$(GREP_VERSION) && \
+ PATH=$(ROOT)/fixed-gcc:$$PATH \
+ ./configure \
+ --host=riscv64-unknown-linux-gnu \
+ --prefix=/usr --libdir=/usr/lib64
+ cd grep-$(GREP_VERSION) && PATH=$(ROOT)/fixed-gcc:$$PATH make
+ cd grep-$(GREP_VERSION) && make install DESTDIR=$(ROOT)/stage3-chroot
+
+grep-$(GREP_VERSION).tar.xz:
+ rm -f $@ $@-t
+ wget -O $@-t https://ftp.gnu.org/gnu/grep/grep-$(GREP_VERSION).tar.xz
+ mv $@-t $@
+
+# Cross-compile less.
+stage3-chroot/usr/bin/less: less-$(LESS_VERSION).tar.gz
+ rm -rf less-$(LESS_VERSION)
+ tar -zxf $^
+ cd less-$(LESS_VERSION) && \
+ PATH=$(ROOT)/fixed-gcc:$$PATH \
+ LDFLAGS=-L$(ROOT)/stage3-chroot/usr/lib64 \
+ ./configure \
+ --host=riscv64-unknown-linux-gnu \
+ --prefix=/usr --libdir=/usr/lib64
+ cd less-$(LESS_VERSION) && PATH=$(ROOT)/fixed-gcc:$$PATH make
+ cd less-$(LESS_VERSION) && make install DESTDIR=$(ROOT)/stage3-chroot
+
+less-$(LESS_VERSION).tar.gz:
+ rm -f $@ $@-t
+ wget -O $@-t http://www.greenwoodsoftware.com/less/less-$(LESS_VERSION).tar.gz
+ mv $@-t $@
+
+# Cross-compile strace.
+# XXX This does not work.
+stage3-chroot/usr/bin/strace: strace-$(STRACE_SHORT_COMMIT).tar.gz
+ rm -rf strace-$(STRACE_SHORT_COMMIT)
+ tar -zxf $^
+ cd riscv-strace-$(STRACE_COMMIT) && patch -p1 < ../0001-Update-riscv_regs-for-ptrace.h-from-Linux-4.1.x.patch
+ cd riscv-strace-$(STRACE_COMMIT) && \
+ PATH=$(ROOT)/fixed-gcc:$$PATH \
+ LDFLAGS=-L$(ROOT)/stage3-chroot/usr/lib64 \
+ ./configure \
+ --host=riscv64-unknown-linux-gnu \
+ --prefix=/usr --libdir=/usr/lib64
+ cd riscv-strace-$(STRACE_COMMIT) && PATH=$(ROOT)/fixed-gcc:$$PATH make
+ cd riscv-strace-$(STRACE_COMMIT) && make install DESTDIR=$(ROOT)/stage3-chroot
+
+strace-$(STRACE_SHORT_COMMIT).tar.gz:
+ rm -f $@ $@-t
+ wget -O $@-t 'https://github.com/riscv/riscv-strace/archive/$(STRACE_COMMIT)/riscv-strace-$(STRACE_SHORTCOMMIT).tar.gz'
+ mv $@-t $@
+
+# Cross-compile bzip2.
+stage3-chroot/usr/bin/bzip2: bzip2-$(BZIP2_VERSION).tar.gz
+ rm -rf bzip2-$(BZIP2_VERSION)
+ tar -zxf $^
+ cd bzip2-$(BZIP2_VERSION) && \
+ PATH=$(ROOT)/fixed-gcc:$$PATH \
+ make libbz2.a bzip2 bzip2recover \
+ PREFIX=/usr \
+ CC=riscv64-unknown-linux-gnu-gcc \
+ AR=riscv64-unknown-linux-gnu-ar \
+ RANLIB=riscv64-unknown-linux-gnu-ranlib
+ cd bzip2-$(BZIP2_VERSION) && \
+ make install PREFIX=$(ROOT)/stage3-chroot/usr
+
+bzip2-$(BZIP2_VERSION).tar.gz:
+ rm -f $@ $@-t
+ wget -O $@-t http://www.bzip.org/1.0.6/bzip2-$(BZIP2_VERSION).tar.gz
+ mv $@-t $@
+