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-rw-r--r--Library/Formula/open-babel.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/Library/Formula/open-babel.rb b/Library/Formula/open-babel.rb
index 33db3938e..f10f88aee 100644
--- a/Library/Formula/open-babel.rb
+++ b/Library/Formula/open-babel.rb
@@ -10,6 +10,7 @@ class OpenBabel < Formula
option 'python', 'Compile Python language bindings'
option 'java', 'Compile Java language bindings'
+ depends_on 'pkg-config' => :build
depends_on 'cmake' => :build
depends_on 'wxmac' if build.include? 'gui'
depends_on 'cairo' if build.include? 'png'