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-rw-r--r--boost-build.jam1
1 files changed, 1 insertions, 0 deletions
diff --git a/boost-build.jam b/boost-build.jam
index 1ba9dd2de3..8b8775433a 100644
--- a/boost-build.jam
+++ b/boost-build.jam
@@ -10,6 +10,7 @@
# building Boost libraries. Unless explicitly selected using a command-line
# option, the version included with the Boost library distribution is used (as
# opposed to any other Boost Build version installed on the user's sytem).
+
BOOST_ROOT = $(.boost-build-file:D) ;
BOOST_BUILD = [ MATCH --boost-build=(.*) : $(ARGV) ] ;
BOOST_BUILD ?= tools/build/v2 ;