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-rw-r--r--toolchain/helpers.mk4
1 files changed, 4 insertions, 0 deletions
diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk
index 7c70d35a3a..85a9407642 100644
--- a/toolchain/helpers.mk
+++ b/toolchain/helpers.mk
@@ -193,6 +193,10 @@ check_kernel_headers_version = \
#
check_gcc_version = \
expected_version="$(strip $2)" ; \
+ if [ -z "$${expected_version}" ]; then \
+ printf "Internal error, gcc version unknown (no GCC_AT_LEAST_X_Y selected)\n"; \
+ exit 1 ; \
+ fi; \
real_version=`$(1) --version | sed -r -e '1!d; s/^[^)]+\) ([^[:space:]]+).*/\1/;'` ; \
if [[ ! "$${real_version}" =~ ^$${expected_version}\. ]] ; then \
printf "Incorrect selection of gcc version: expected %s.x, got %s\n" \
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