electric-fence 2.1.13-0.1

Formula for Electric Fence, the C malloc debug library written by Bruce Perens.

Closes Homebrew/homebrew#22596.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/electric-fence.rb

@@ -0,0 +1,59 @@
+require 'formula'
+
+class ElectricFence < Formula
+  homepage 'http://perens.com/FreeSoftware/ElectricFence/'
+  url 'http://perens.com/FreeSoftware/ElectricFence/electric-fence_2.1.13-0.1.tar.gz'
+  version '2.1.13-0.1'
+  sha1 'e6765bcb1543272040b806eea706fc7ae9b60524'
+
+  def install
+    system "make"
+    lib.install "libefence.a"
+    man3.install "libefence.3"
+  end
+
+  def patches
+    # Patch based on this MacPorts port: https://trac.macports.org/ticket/23836
+    # Discussion on how to port it to OS X: http://lists.apple.com/archives/xcode-users/2005/Oct/msg00791.html
+    DATA
+  end
+
+  test do
+    (testpath/'test1.c').write <<-EOS.undent
+       #include <stdlib.h>
+       int main() {
+          int *arr = (int*)malloc(sizeof(int) * 10);
+          arr[10] = 1000;
+          return 0;
+       }
+    EOS
+    #{ENV.cc}, (testpath/'test1.c'), '-lefence'
+  end
+end
+
+__END__
+diff --git a/Makefile b/Makefile
+index 660f586..82054b9 100644
+--- a/Makefile
++++ b/Makefile
+@@ -4,7 +4,7 @@ AR= ar
+ INSTALL= install
+ MV= mv
+ CHMOD= chmod
+-CFLAGS= -g
++CFLAGS= -g -DPAGE_PROTECTION_VIOLATED_SIGNAL=SIGBUS
+ LIB_INSTALL_DIR= /usr/lib
+ MAN_INSTALL_DIR= /usr/man/man3
+
+diff --git a/page.c b/page.c
+index 07ac9d5..69374c4 100644
+--- a/page.c
++++ b/page.c
+@@ -30,7 +30,7 @@
+ static caddr_t	startAddr = (caddr_t) 0;
+
+ #if ( !defined(sgi) && !defined(_AIX) )
+-extern int	sys_nerr;
++/*extern int	sys_nerr;*/
+ /*extern char *	sys_errlist[];*/
+ #endif