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-rw-r--r--scripts/Kconfig.include8
1 files changed, 8 insertions, 0 deletions
diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include
index 87ff1dcc6bd5..0b267fb27f07 100644
--- a/scripts/Kconfig.include
+++ b/scripts/Kconfig.include
@@ -18,6 +18,10 @@ if-success = $(shell,{ $(1); } >/dev/null 2>&1 && echo "$(2)" || echo "$(3)")
# Return y if <command> exits with 0, n otherwise
success = $(if-success,$(1),y,n)
+# $(failure,<command>)
+# Return n if <command> exits with 0, y otherwise
+failure = $(if-success,$(1),n,y)
+
# $(cc-option,<flag>)
# Return y if the compiler supports <flag>, n otherwise
cc-option = $(success,$(CC) -Werror $(1) -E -x c /dev/null -o /dev/null)
@@ -26,5 +30,9 @@ cc-option = $(success,$(CC) -Werror $(1) -E -x c /dev/null -o /dev/null)
# Return y if the linker supports <flag>, n otherwise
ld-option = $(success,$(LD) -v $(1))
+# check if $(CC) and $(LD) exist
+$(error-if,$(failure,command -v $(CC)),compiler '$(CC)' not found)
+$(error-if,$(failure,command -v $(LD)),linker '$(LD)' not found)
+
# gcc version including patch level
gcc-version := $(shell,$(srctree)/scripts/gcc-version.sh $(CC))