rules: bash: add rule to compile/add bash.

rules/bash/default.bash

@@ -0,0 +1,45 @@
+version=\
+(
+    "4.4.18"
+)
+
+url=\
+(
+    "http://ftp.gnu.org/gnu/bash/bash-$version.tar.gz"
+)
+
+md5=\
+(
+    '518e2c187cc11a17040f0915dddce54e'
+)
+
+maintainer=\
+(
+    'Pedro Gonçalves <pedro@fe.up.pt>'
+)
+
+
+configure()
+{
+    ./configure \
+    --prefix=${cfg_dir_rootfs}/usr \
+    --host=${cfg_target_canonical} \
+    --bindir=${cfg_dir_toolchain}/bin \
+    --without-bash-malloc
+}
+
+build()
+{
+    $cmd_make VERBOSE=1
+}
+
+host_install()
+{
+    $cmd_make install
+}
+
+target_install()
+{
+    $cmd_cp bash ${cfg_dir_rootfs}/usr/bin
+    $cmd_cp bashversion ${cfg_dir_rootfs}/usr/bin
+}