From 36f2ccd665e739583cc6aab20d4bfade9dba6516 Mon Sep 17 00:00:00 2001
From: Daniel Kempkens <daniel+git@kempkens.io>
Date: Wed, 3 May 2023 17:16:35 +0200
Subject: [PATCH] Add liblpeg-darwin

---
 packages.nix                   |  2 ++
 packages/liblpeg-darwin.nix    | 23 +++++++++++++++
 patches/liblpeg-makefile.patch | 51 ++++++++++++++++++++++++++++++++++
 3 files changed, 76 insertions(+)
 create mode 100644 packages/liblpeg-darwin.nix
 create mode 100644 patches/liblpeg-makefile.patch

diff --git a/packages.nix b/packages.nix
index ca71cef..04f3cfd 100644
--- a/packages.nix
+++ b/packages.nix
@@ -10,4 +10,6 @@
   q = import ./packages/q.nix { inherit system lib pkgs; };
   rimgo = import ./packages/rimgo.nix { inherit system lib pkgs; };
   website-docs-nifoc-pw = import ./packages/website-docs-nifoc-pw.nix { inherit system lib pkgs; };
+
+  liblpeg-darwin = import ./packages/liblpeg-darwin.nix { inherit system lib pkgs; };
 }
diff --git a/packages/liblpeg-darwin.nix b/packages/liblpeg-darwin.nix
new file mode 100644
index 0000000..00123f9
--- /dev/null
+++ b/packages/liblpeg-darwin.nix
@@ -0,0 +1,23 @@
+{ system, lib, pkgs }:
+
+pkgs.stdenv.mkDerivation {
+  pname = "liblpeg";
+  inherit (pkgs.luajitPackages.lpeg) version src;
+
+  nativeBuildInputs = [ pkgs.fixDarwinDylibNames ];
+  buildInputs = [ pkgs.luajit ];
+
+  patches = [ ../patches/liblpeg-makefile.patch ];
+
+  installPhase = ''
+    mkdir -p $out/lib
+    install -D lpeg.dylib $out/lib/lpeg.dylib
+  '';
+
+  meta = {
+    homepage = "http://www.inf.puc-rio.br/~roberto/lpeg.html";
+    description = "Parsing Expression Grammars For Lua";
+    license.fullName = "MIT/X11";
+    platforms = [ "x86_64-darwin" "aarch64-darwin" ];
+  };
+}
diff --git a/patches/liblpeg-makefile.patch b/patches/liblpeg-makefile.patch
new file mode 100644
index 0000000..0bf2e78
--- /dev/null
+++ b/patches/liblpeg-makefile.patch
@@ -0,0 +1,51 @@
+--- a/makefile	2019-03-11 15:08:29
++++ b/makefile	2023-05-03 17:12:18
+@@ -1,30 +1,7 @@
++.DEFAULT_GOAL := macosx
++
+ LIBNAME = lpeg
+-LUADIR = ../lua/
+ 
+-COPT = -O2 -DNDEBUG
+-# COPT = -g
+-
+-CWARNS = -Wall -Wextra -pedantic \
+-	-Waggregate-return \
+-	-Wcast-align \
+-	-Wcast-qual \
+-	-Wdisabled-optimization \
+-	-Wpointer-arith \
+-	-Wshadow \
+-	-Wsign-compare \
+-	-Wundef \
+-	-Wwrite-strings \
+-	-Wbad-function-cast \
+-	-Wdeclaration-after-statement \
+-	-Wmissing-prototypes \
+-	-Wnested-externs \
+-	-Wstrict-prototypes \
+-# -Wunreachable-code \
+-
+-
+-CFLAGS = $(CWARNS) $(COPT) -std=c99 -I$(LUADIR) -fPIC
+-CC = gcc
+-
+ FILES = lpvm.o lpcap.o lptree.o lpcode.o lpprint.o
+ 
+ # For Linux
+@@ -33,11 +10,14 @@ macosx:
+ 
+ # For Mac OS
+ macosx:
+-	$(MAKE) lpeg.so "DLLFLAGS = -bundle -undefined dynamic_lookup"
++	$(MAKE) lpeg.dylib "DLLFLAGS = -dynamiclib -undefined dynamic_lookup"
+ 
+ lpeg.so: $(FILES)
+ 	env $(CC) $(DLLFLAGS) $(FILES) -o lpeg.so
+ 
++lpeg.dylib: $(FILES)
++	env $(CC) $(DLLFLAGS) $(FILES) -o lpeg.dylib
++
+ $(FILES): makefile
+ 
+ test: test.lua re.lua lpeg.so