From 2394d6f2d8d00dfe6dd3824de678d3ca44e9ae57 Mon Sep 17 00:00:00 2001
From: Dominyk Tiller
Date: Sun, 11 Sep 2016 04:49:09 +0100
Subject: caveats: highlight PKG_CONFIG_PATH if exists

We keep getting issues every now & again about people being confused that
keg_only includes hiding the `pkg-config` files. Perhaps seems reasonable to
start pointing out those exist when they do & a hint on how to access them.

Hidden behind a which check to avoid redundant messages, although `pkg-config`
is an incredibly popular formula. Ran some time tests, no appreciable difference
from the status quo.

If accepted:
Closes https://github.com/Homebrew/homebrew-core/issues/4669.
---
 Library/Homebrew/caveats.rb | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'Library')

diff --git a/Library/Homebrew/caveats.rb b/Library/Homebrew/caveats.rb
index 7c23901b8..b71596b2b 100644
--- a/Library/Homebrew/caveats.rb
+++ b/Library/Homebrew/caveats.rb
@@ -54,6 +54,11 @@ class Caveats
         EOS
       s << "    LDFLAGS:  -L#{f.opt_lib}\n" if f.lib.directory?
       s << "    CPPFLAGS: -I#{f.opt_include}\n" if f.include.directory?
+
+      if which("pkg-config")
+        s << "    PKG_CONFIG_PATH: #{f.opt_lib}/pkgconfig\n" if (f.lib/"pkgconfig").directory?
+        s << "    PKG_CONFIG_PATH: #{f.opt_share}/pkgconfig\n" if (f.share/"pkgconfig").directory?
+      end
     end
     s << "\n"
   end
-- 
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