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-rwxr-xr-xotp_build8
1 files changed, 4 insertions, 4 deletions
diff --git a/otp_build b/otp_build
index 093fde8034..945027f0ed 100755
--- a/otp_build
+++ b/otp_build
@@ -1308,12 +1308,12 @@ cd $ERL_TOP
determine_version_controller
-# Unset ERL_FLAGS and ERL_<Release>_FLAGS during bootstrap to
+# Unset ERL_FLAGS and ERL_OTP<Major-VSN>_FLAGS during bootstrap to
# prevent potential problems
-sys_vsn=`awk '/SYSTEM_VSN = / {print $3}' < erts/vsn.mk`
-sys_erl_flags="ERL_${sys_vsn}_FLAGS"
+otp_major_vsn=`cat erts/vsn.mk | grep SYSTEM_VSN | sed "s|SYSTEM_VSN[^=]*=[^0-9]*\([0-9]*\).*|\1|g"`
+erl_otp_flags="ERL_OTP${otp_major_vsn}_FLAGS"
unset ERL_FLAGS
-unset ${sys_erl_flags}
+unset ${erl_otp_flags}
# Target first guess, won't necessarily hold, may be changed for
# certain parameters.