Step4: enhanced shell with bash.

Signed-off-by: Chen Wang <wangchen20@iscas.ac.cn>

package/bash/0001-input.h-add-missing-include-on-stdio.h.patch

@@ -0,0 +1,38 @@
+From 4fa85c85b9a76afd3b19ed75bf17ccd2940f1f55 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Sun, 16 Feb 2020 16:18:48 +0100
+Subject: [PATCH] input.h: add missing include on stdio.h
+
+This will fix the following build failure on uclibc:
+
+test -n "/usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-2/output/host/bin/arm-linux-ranlib" && /usr/lfs/hdd_v1/rc-buildroot-test/scripts/instance-2/output/host/bin/arm-linux-ranlib libsh.a
+In file included from ./exec.def:71:
+../input.h:76:3: error: unknown type name 'FILE'
+   FILE *file;
+   ^~~~
+
+Fixes:
+ - http://autobuild.buildroot.org/results/bfca306868df54c567215c45c8cdac838d02f567
+
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+[Upstream status: https://savannah.gnu.org/support/?110196]
+---
+ input.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/input.h b/input.h
+index 6aef1269..08b0fdea 100644
+--- a/input.h
++++ b/input.h
+@@ -21,6 +21,8 @@
+ #if !defined (_INPUT_H_)
+ #define _INPUT_H_
+ 
++#include <stdio.h>
++
+ #include "stdc.h"
+ 
+ /* Function pointers can be declared as (Function *)foo. */
+-- 
+2.24.1
+

package/bash/0002-parse.y-fix-compilation-for-non-multibyte-builds.patch

@@ -0,0 +1,63 @@
+From 0217fc2816e47ee296472df71d1011f0eb2937e6 Mon Sep 17 00:00:00 2001
+From: Vincent Fazio <vfazio@gmail.com>
+Date: Fri, 27 Jan 2023 14:37:26 -0600
+Subject: [PATCH] parse.y: fix compilation for non-multibyte builds
+
+Builds configured with --disable-multibyte or when the toolchain does
+not have WCHAR support would encounter a compile error due to an
+undeclared reference to shell_input_line_property in shell_getc.
+
+Add a HANDLE_MULTIBYTE guard to conditionally compile the block that
+references shell_input_line_property in shell_getc as it's only declared
+when HANDLE_MULTIBYTE is defined.
+
+Signed-off-by: Vincent Fazio <vfazio@gmail.com>
+[Upstream status: https://savannah.gnu.org/patch/index.php?10309]
+---
+ parse.y | 2 ++
+ y.tab.c | 2 ++
+ 2 files changed, 4 insertions(+)
+
+diff --git a/parse.y b/parse.y
+index 1d12e639..8f1355c6 100644
+--- a/parse.y
++++ b/parse.y
+@@ -2640,6 +2640,7 @@ next_alias_char:
+       parser_state |= PST_ENDALIAS;
+       /* We need to do this to make sure last_shell_getc_is_singlebyte returns
+ 	 true, since we are returning a single-byte space. */
++#if defined (HANDLE_MULTIBYTE)
+       if (shell_input_line_index == shell_input_line_len && last_shell_getc_is_singlebyte == 0)
+ 	{
+ #if 0
+@@ -2653,6 +2654,7 @@ next_alias_char:
+ 	  shell_input_line_property[shell_input_line_index - 1] = 1;
+ #endif
+ 	}
++#endif /* HANDLE_MULTIBYTE */
+       return ' ';	/* END_ALIAS */
+     }
+ #endif
+diff --git a/y.tab.c b/y.tab.c
+index 50c5845b..799f730f 100644
+--- a/y.tab.c
++++ b/y.tab.c
+@@ -4955,6 +4955,7 @@ next_alias_char:
+       parser_state |= PST_ENDALIAS;
+       /* We need to do this to make sure last_shell_getc_is_singlebyte returns
+ 	 true, since we are returning a single-byte space. */
++#if defined (HANDLE_MULTIBYTE)
+       if (shell_input_line_index == shell_input_line_len && last_shell_getc_is_singlebyte == 0)
+ 	{
+ #if 0
+@@ -4968,6 +4969,7 @@ next_alias_char:
+ 	  shell_input_line_property[shell_input_line_index - 1] = 1;
+ #endif
+ 	}
++#endif /* HANDLE_MULTIBYTE */
+       return ' ';	/* END_ALIAS */
+     }
+ #endif
+-- 
+2.25.1
+

package/bash/make.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/bash
+source $(dirname "$0")/../common.sh
+
+PKGNAME=bash
+PKGVERSION=5.2.37
+PKGSOURCE_DIR=bash
+PKGSOURCE=bash-5.2.37.tar.gz
+PKGURL=http://mirrors.ustc.edu.cn/gnu/bash/bash-5.2.37.tar.gz
+
+PKGBUILDNAME=${PKGNAME}
+PKGBUILD_DIR=${BUILD_DIR}/${PKGBUILDNAME}-${PKGVERSION}
+
+echo "----> Building ${PKGBUILDNAME} ..."
+
+stamp_downloaded
+
+step_start extract
+mkdir -p ${PKGBUILD_DIR}
+gzip -d -c ${DL_DIR}/${PKGSOURCE_DIR}/${PKGSOURCE} | tar --strip-components=1 -C ${PKGBUILD_DIR} -xf -
+chmod -R +rw ${PKGBUILD_DIR}
+step_end extract
+
+step_start patch
+TAR="tar" PATH=${HOST_DIR}/bin:$PATH ${PROJECT_DIR}/support/scripts/apply-patches.sh ${PKGBUILD_DIR} ${PROJECT_DIR}/package/${PKGNAME} \*.patch
+step_end patch autotools
+
+step_start configure
+(cd ${PKGBUILD_DIR} && rm -rf config.cache && eval "${TARGET_CONFIGURE_OPTS} CXX=no ac_cv_lbl_unaligned_fail=yes ac_cv_func_mmap_fixed_mapped=yes ac_cv_func_memcmp_working=yes ac_cv_have_decl_malloc=yes gl_cv_func_malloc_0_nonnull=yes ac_cv_func_malloc_0_nonnull=yes ac_cv_func_calloc_0_nonnull=yes ac_cv_func_realloc_0_nonnull=yes lt_cv_sys_lib_search_path_spec=\"\" ac_cv_c_bigendian=no  ac_cv_rl_prefix=\"${STAGING_DIR}\" ac_cv_rl_version=\"8.3\" bash_cv_getcwd_malloc=yes bash_cv_job_control_missing=present bash_cv_sys_named_pipes=present bash_cv_func_sigsetjmp=present bash_cv_printf_a_format=yes CONFIG_SITE=/dev/null ./configure --target=${GNU_TARGET_NAME} --host=${GNU_TARGET_NAME} --build=x86_64-pc-linux-gnu --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --localstatedir=/var --program-prefix=\"\" --disable-gtk-doc --disable-gtk-doc-html --disable-doc --disable-docs --disable-documentation --with-xmlto=no --with-fop=no --disable-dependency-tracking --enable-ipv6 --disable-nls --disable-static --enable-shared  --bindir=/bin --with-installed-readline --without-bash-malloc")
+step_end configure
+
+step_start build
+eval "${TARGET_MAKE_ENV} /usr/bin/make -j${MAXNUM_CPUS}  -C ${PKGBUILD_DIR}"
+step_end build
+
+step_start install-target
+eval "${TARGET_MAKE_ENV} /usr/bin/make -j${MAXNUM_CPUS} DESTDIR=${TARGET_DIR} install -C ${PKGBUILD_DIR}"
+rm -f ${TARGET_DIR}/bin/bashbug
+rm -rf ${TARGET_DIR}/usr/lib/bash
+step_end install-target
+
+stamp_installed
+
+echo "<---- ${PKGBUILDNAME} build complete."