Set Makefile SHELL to bash instead of /bin/bash for better portability. Some systems do not install binaries to /bin, and therefore do not provide /bin/bash. OS distributions such as NixOS and Guix System intentionally avoid implementing the Filesystem Hierarchy Standard (FHS).
The recipies inside arch/um/Makefile don't require top-level Bash to build, and setting "SHELL" to "bash" makes Make pick the Bash executable from the environment[2], hence this patch. Signed-off-by: Yueh-Shun Li <shamrock...@posteo.net> --- arch/um/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/um/Makefile b/arch/um/Makefile index 82f05f250634..904e2b990963 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -20,7 +20,7 @@ endif ARCH_DIR := arch/um # We require bash because the vmlinux link and loader script cpp use bash # features. -SHELL := /bin/bash +SHELL := bash MODE_INCLUDE += -I$(srctree)/$(ARCH_DIR)/include/shared/skas -- 2.42.0
