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-rw-r--r--toolchain.inc1
1 files changed, 1 insertions, 0 deletions
diff --git a/toolchain.inc b/toolchain.inc
index b54d95935b..73f08323a9 100644
--- a/toolchain.inc
+++ b/toolchain.inc
@@ -84,6 +84,7 @@ set_stage_toolchain= \
# @2: compiler set to be used
# e.g.: smm special class uses i386 as compiler set
define create_class_compiler
+$(if $(2),,$(error building $(1) without the required toolchain))
CC_$(1) := $(CC_$(2))
LD_$(1) := $(LD_$(2))
NM_$(1) := $(NM_$(2))