gnupg: use ENV.append

1 files changed, 2 insertions, 7 deletions

diff --git a/Library/Formula/gnupg.rb b/Library/Formula/gnupg.rb
index 52aad8035..62653f0a8 100644
--- a/Library/Formula/gnupg.rb
+++ b/Library/Formula/gnupg.rb
@@ -14,19 +14,14 @@ class Gnupg < Formula
 
   option '8192', 'Build with support for private keys of up to 8192 bits'
 
-  def cflags
-    cflags = ENV.cflags.to_s
-    cflags += ' -std=gnu89 -fheinous-gnu-extensions' if ENV.compiler == :clang
-    cflags
-  end
-
   def install
     inreplace 'g10/keygen.c', 'max=4096', 'max=8192' if build.include? '8192'
+    ENV.append "CFLAGS", "-std=gnu89 -fheinous-gnu-extensions" if ENV.compiler == :clang
 
     system "./configure", "--disable-dependency-tracking",
                           "--prefix=#{prefix}",
                           "--disable-asm"
-    system "make", "CFLAGS=#{cflags}"
+    system "make"
     system "make check"
 
     # we need to create these directories because the install target has the