kumquat-buildroot/package/bash/bash.mk

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################################################################################
#
# bash
#
################################################################################
BASH_VERSION = 5.1
BASH_SITE = $(BR2_GNU_MIRROR)/bash
BASH_DEPENDENCIES = ncurses readline host-bison
BASH_LICENSE = GPL-3.0+
BASH_LICENSE_FILES = COPYING
BASH_CPE_ID_VENDOR = gnu
# We want the bash binary in /bin
BASH_CONF_OPTS = \
--bindir=/bin \
--with-installed-readline \
--without-bash-malloc
BASH_CONF_ENV += \
ac_cv_rl_prefix="$(STAGING_DIR)" \
ac_cv_rl_version="$(READLINE_VERSION)" \
bash_cv_getcwd_malloc=yes \
bash_cv_job_control_missing=present \
bash_cv_sys_named_pipes=present \
bash_cv_func_sigsetjmp=present \
bash_cv_printf_a_format=yes
# The static build needs some trickery
ifeq ($(BR2_STATIC_LIBS),y)
BASH_CONF_OPTS += --enable-static-link
# bash wants to redefine the getenv() function. To check whether this is
# possible, AC_TRY_RUN is used which is not possible in
# cross-compilation.
# On uClibc, redefining getenv is not possible; on glibc and musl it is.
# Related:
# http://lists.gnu.org/archive/html/bug-bash/2012-03/msg00052.html
ifeq ($(BR2_TOOLCHAIN_USES_UCLIBC),y)
BASH_CONF_ENV += bash_cv_getenv_redef=no
else
BASH_CONF_ENV += bash_cv_getenv_redef=yes
endif
endif
define BASH_REMOVE_UNUSED_FILES
rm -f $(TARGET_DIR)/bin/bashbug
endef
BASH_POST_INSTALL_TARGET_HOOKS += BASH_REMOVE_UNUSED_FILES
package/bash: add option to keep or remove loadable examples bash has a concept of "loadables", which are "plugins" that can be loaded at runtime by bash to add new builtin. For example: # type whoami whoami is hashed (/usr/bin/whoami) # whoami root # enable -f /usr/lib/bash/whoami whoami # type whoami whoami is a shell builtin # whoami root # enable -d whoami # type whoami whoami is hashed (/usr/bin/whoami) # whoami root bash comes with a set of example loadables, installed in /usr/lib/bash/. They take 312 KB on ARM32, and are by default not used, and provide builtins that are for the most part already available as external commands in Busybox/coreutils: Makefile.inc finfo mkfifo realpath sync accept head mktemp rm tee basename id mypid rmdir truefalse csv ln pathchk seq tty cut loadables.h print setpgid uname dirname logname printenv sleep unlink fdflags mkdir push strftime whoami So instead of having them unconditionally installed, add an option to enable/disable their installation (their build apparently cannot be disabled via a configure option). Normally, we try to keep backward compatibility by preserving the existing behavior. In this case, this would have meant making this option "default y". But this also breaks our principle of "being minimal by default", and in this case, it feels preferable to be "minimal by default" than preserving existing behavior. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: Nicolas Cavallari <nicolas.cavallari@green-communications.fr> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2021-04-23 22:23:54 +02:00
ifeq ($(BR2_PACKAGE_BASH_LOADABLE_EXAMPLES),y)
define BASH_REMOVE_LOADABLE_UNUSED_FILES
rm -f $(TARGET_DIR)/usr/lib/bash/Makefile.inc
rm -f $(TARGET_DIR)/usr/lib/bash/loadables.h
endef
BASH_POST_INSTALL_TARGET_HOOKS += BASH_REMOVE_LOADABLE_UNUSED_FILES
else
define BASH_REMOVE_LOADABLE_EXAMPLES
rm -rf $(TARGET_DIR)/usr/lib/bash
endef
BASH_POST_INSTALL_TARGET_HOOKS += BASH_REMOVE_LOADABLE_EXAMPLES
endif
# Add /bin/bash to /etc/shells otherwise some login tools like dropbear
# can reject the user connection. See man shells.
define BASH_ADD_MKSH_TO_SHELLS
grep -qsE '^/bin/bash$$' $(TARGET_DIR)/etc/shells \
|| echo "/bin/bash" >> $(TARGET_DIR)/etc/shells
endef
BASH_TARGET_FINALIZE_HOOKS += BASH_ADD_MKSH_TO_SHELLS
$(eval $(autotools-package))