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-rw-r--r--Library/Formula/tree.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/Library/Formula/tree.rb b/Library/Formula/tree.rb
index 1a9de0a07..35ac0f372 100644
--- a/Library/Formula/tree.rb
+++ b/Library/Formula/tree.rb
@@ -6,7 +6,7 @@ class Tree <Formula
md5 'c07ce9065667a23f27aca4de8ecccb10'
def install
- system "#{ENV.cc} #{ENV['CFLAGS']} -o tree tree.c strverscmp.c"
+ system "#{ENV.cc} #{ENV.cflags} -o tree tree.c strverscmp.c"
bin.install "tree"
man1.install "man/tree.1"