nvc: revision for llvm

Closes #11088.

Signed-off-by: ilovezfs <ilovezfs@icloud.com>

Formula/nvc.rb

@@ -1,8 +1,33 @@
 class Nvc < Formula
   desc "VHDL compiler and simulator"
   homepage "https://github.com/nickg/nvc"
-  url "https://github.com/nickg/nvc/releases/download/r1.1.0/nvc-1.1.0.tar.gz"
-  sha256 "b3b5f67ee91046ab802112e544b7883f7a92b69d25041b5b8187c07016dfda75"
+  revision 1
+  head "https://github.com/nickg/nvc.git"
+
+  stable do
+    url "https://github.com/nickg/nvc/releases/download/r1.1.0/nvc-1.1.0.tar.gz"
+    sha256 "b3b5f67ee91046ab802112e544b7883f7a92b69d25041b5b8187c07016dfda75"
+
+    # Remove for > 1.1.0
+    # LLVM 3.9 compatibility
+    # Fix "Undefined symbols for architecture x86_64: '_LLVMLinkModules'"
+    # Upstream commit from 8 Jan 2017 "Use LLVMLinkModules2 where available."
+    # Reported 8 Jan 2017 https://github.com/nickg/nvc/issues/310
+    patch do
+      url "https://github.com/nickg/nvc/commit/cd427e4.patch"
+      sha256 "5223274735e72bfa5f55ca7d7a97f1c1d254b8104fe4adb40e47ae67311f2c28"
+    end
+
+    # Remove for > 1.1.0
+    # LLVM 4.0 compatibility
+    # Fix "use of undeclared identifier 'LLVMNoUnwindAttribute'"
+    # Upstream commit from 7 Mar 2017 "Update for new LLVM attribute API."
+    # Reported 16 Feb 2017 https://github.com/nickg/nvc/issues/313
+    patch do
+      url "https://github.com/nickg/nvc/commit/028ece6.patch"
+      sha256 "9c2ae65129b6f3e5e6efb1eff77bd2bde790f3d8168b7fe482b4bf9f1115fd63"
+    end
+  end
 
   bottle do
     sha256 "1e9c83fa64952cccf301e1652516697c6ab9e17a3d05e6f5f3861cb97689f1c0" => :sierra
@@ -10,13 +35,9 @@ class Nvc < Formula
     sha256 "1b530bdf998bb161222efaae1ee59fe135889d6ed245f28dd2cee06e845ddc0e" => :yosemite
   end
 
-  head do
-    url "https://github.com/nickg/nvc.git"
-
-    depends_on "automake" => :build
-    depends_on "autoconf" => :build
-  end
-
+  depends_on "autoconf" => :build
+  depends_on "automake" => :build
+  depends_on "pkg-config" => :build
   depends_on "llvm" => :build
   depends_on "check" => :build
 
@@ -25,18 +46,18 @@ class Nvc < Formula
         :revision => "c112c17f098f13719784df90c277683051b61d05"
   end
 
-  # LLVM 3.9 compatibility
-  # Fix "Undefined symbols for architecture x86_64: '_LLVMLinkModules'"
-  # Reported 8 Jan 2017 https://github.com/nickg/nvc/issues/310
-  patch :DATA
-
   def install
     args = %W[
       --with-llvm=#{Formula["llvm"].opt_bin}/llvm-config
       --prefix=#{prefix}
     ]
 
-    system "./autogen.sh" unless build.stable?
+    if build.head?
+      system "./autogen.sh"
+    else
+      system "autoreconf", "-fiv"
+    end
+
     system "./tools/fetch-ieee.sh"
     system "./configure", *args
     system "make"
@@ -48,19 +69,3 @@ class Nvc < Formula
     system "#{bin}/nvc", "-a", "#{testpath}/basic_library/very_common_pkg.vhd"
   end
 end
-
-__END__
-diff --git a/src/link.c b/src/link.c
-index 850de56..2592b84 100644
---- a/src/link.c
-+++ b/src/link.c
-@@ -158,8 +158,8 @@ static void link_context_bc_fn(lib_t lib, tree_t unit, FILE *deps)
-          tree_remove_attr(unit, llvm_i);
-
-       char *outmsg;
--      if (LLVMLinkModules(module, src, LLVMLinkerDestroySource, &outmsg))
--         fatal("LLVM link failed: %s", outmsg);
-+      if (LLVMLinkModules2(module, src))
-+         fatal("LLVM link failed");
-    }
- }