build: Explicitly use bash for shell scripts
VPP requires bash for all shell scripts. Align shebang lines in build
and test scripts to look up the location of bash rather than hard coding
'/bin/bash'.
Look up the location of bash for makefiles.
Type: improvement
Change-Id: I23b705d81d60389fa8af61c680cf0abd74f0ea24
Signed-off-by: Tom Jones <thj@freebsd.org>
diff --git a/build-root/Makefile b/build-root/Makefile
index d35b7a1..6416de2 100644
--- a/build-root/Makefile
+++ b/build-root/Makefile
@@ -39,7 +39,7 @@
######################################################################
# Scripts require non-POSIX parts of bash
-SHELL := /bin/bash
+SHELL := $(shell which bash)
# Where this makefile lives
MU_BUILD_ROOT_DIR = $(shell pwd)
@@ -962,7 +962,7 @@
chmod 0755 $${tmp_dir} ; \
cd $${tmp_dir} ; \
trap "rm -rf $${tmp_dir}" err ; \
- fakeroot /bin/bash -c "{ \
+ fakeroot $(SHELL) -c "{ \
set -eu$(BUILD_DEBUG) ; \
$(MAKE) -C $(MU_BUILD_ROOT_DIR) IMAGE_INSTALL_DIR=$${tmp_dir} \
$(patsubst %,%-image_install, \
@@ -1054,7 +1054,7 @@
chmod 0755 $${tmp_dir} ; \
cd $${tmp_dir} ; \
trap "rm -rf $${tmp_dir}" err ; \
- fakeroot /bin/bash -c "{ \
+ fakeroot $(SHELL) -c "{ \
set -eu$(BUILD_DEBUG) ; \
$(linuxrc_makedev) ; \
$(call rw_image_embed_ro_image_fn,$${ro_image}) ; \