boost: disable context on unsupported archs

Fixes #17646.

1 files changed, 5 insertions, 0 deletions

diff --git a/Library/Formula/boost.rb b/Library/Formula/boost.rb
index 04ceaadbd..a14e05470 100644
--- a/Library/Formula/boost.rb
+++ b/Library/Formula/boost.rb
@@ -80,6 +80,11 @@ class Boost < Formula
       bargs << '--without-icu'
     end
 
+    # The context library is implemented as x86_64 ASM, so it
+    # won't build on PPC or 32-bit builds
+    # see https://github.com/mxcl/homebrew/issues/17646
+    bargs << "--without-libraries=context" if Hardware::CPU.type == :ppc || Hardware::CPU.bits == 32 || build.universal?
+
     boost_layout = (build.include? "use-system-layout") ? "system" : "tagged"
     args = ["--prefix=#{prefix}",
             "--libdir=#{lib}",