Formula: provide compiler failure collections

`needs` allows formulae to specify dependencies on cross-compiler
dependencies, allowing multiple failures to be specified in a single
statement. For instance, `needs :cxx11` adds seven compiler failures.

Closes #22912.

1 files changed, 2 insertions, 9 deletions

diff --git a/Library/Formula/libcppa.rb b/Library/Formula/libcppa.rb
index bf082c3f6..9972594aa 100644
--- a/Library/Formula/libcppa.rb
+++ b/Library/Formula/libcppa.rb
@@ -5,20 +5,13 @@ class Libcppa < Formula
   url 'https://github.com/Neverlord/libcppa/archive/V0.8.1.tar.gz'
   sha1 'd4f096aae2bb72e254ad6df45edf3fb62370acaa'
 
-  depends_on :macos => :lion
   depends_on 'cmake' => :build
 
+  needs :cxx11
+
   option 'with-opencl', 'Build with OpenCL actors'
   option 'with-examples', 'Build examples'
 
-  fails_with :gcc do
-    cause 'libcppa requires a C++11 compliant compiler.'
-  end
-
-  fails_with :llvm do
-    cause 'libcppa requires a C++11 compliant compiler.'
-  end
-
   def install
     args = %W[
       --prefix=#{prefix}