libantlr3c: enable exceptions by default.

1 files changed, 33 insertions, 8 deletions

diff --git a/Library/Formula/libantlr3c.rb b/Library/Formula/libantlr3c.rb
index 66d25a677..1677e7cfd 100644
--- a/Library/Formula/libantlr3c.rb
+++ b/Library/Formula/libantlr3c.rb
@@ -1,9 +1,10 @@
-require 'formula'
-
 class Libantlr3c < Formula
-  homepage 'http://www.antlr3.org'
-  url 'http://www.antlr3.org/download/C/libantlr3c-3.4.tar.gz'
-  sha1 'faa9ab43ab4d3774f015471c3f011cc247df6a18'
+  homepage "http://www.antlr3.org"
+  url "http://www.antlr3.org/download/C/libantlr3c-3.4.tar.gz"
+  sha256 "ca914a97f1a2d2f2c8e1fca12d3df65310ff0286d35c48b7ae5f11dcc8b2eb52"
+  revision 1
+
+  option "without-exceptions", "Compile without support for exception handling"
 
   bottle do
     cellar :any
@@ -14,8 +15,32 @@ class Libantlr3c < Formula
   end
 
   def install
-    system "./configure", "--disable-dependency-tracking",
-                          "--prefix=#{prefix}"
-    system "make install"
+    args = ["--disable-dependency-tracking",
+            "--disable-antlrdebug",
+            "--prefix=#{prefix}"]
+    args << "--enable-64bit" if MacOS.prefer_64_bit?
+    system "./configure", *args
+    if build.with? "exceptions"
+      inreplace "Makefile" do |s|
+        cflags = s.get_make_var "CFLAGS"
+        cflags = cflags << " -fexceptions"
+        s.change_make_var! "CFLAGS", cflags
+      end
+    end
+    system "make", "install"
+  end
+
+  test do
+    (testpath/"hello.c").write <<-EOS.undent
+      #include <antlr3.h>
+      int main() {
+        if (0) {
+          antlr3GenericSetupStream(NULL);
+        }
+        return 0;
+      }
+    EOS
+    system ENV.cc, "hello.c", "-lantlr3c", "-o", "hello", "-O0"
+    system testpath/"hello"
   end
 end