Cram GL headers and includes into superenv

Fixes Homebrew/homebrew#14554.

We justify doing this because pre 10.8 X11 came with GL for all Homebrew-capable systems and as such is a default that we'd prefer not to have to address.

1 files changed, 3 insertions, 1 deletions

diff --git a/Library/ENV/4.3/cc b/Library/ENV/4.3/cc
index ffc5884be..ec53fe882 100755
--- a/Library/ENV/4.3/cc
+++ b/Library/ENV/4.3/cc
@@ -135,7 +135,9 @@ class Cmd
     end
   end
   def ldflags
-    cmake_prefixes.map{|prefix| "#{prefix}/lib" }.to_flags('-L')
+    libs = cmake_prefixes.map{|prefix| "#{prefix}/lib" }
+    libs += ENV['CMAKE_LIBRARY_PATH'].split(':')
+    libs.to_flags('-L')
   end
   def cppflags
     all = cmake_prefixes.map{|prefix| "#{prefix}/include" }