zsync: fix build

pkgs/by-name/zs/zsync/package.nix

@@ -1,26 +1,46 @@
 {
   lib,
   stdenv,
-  fetchurl,
+  fetchFromGitHub,
+  autoreconfHook,
 }:
 
 stdenv.mkDerivation rec {
   pname = "zsync";
-  version = "0.6.2";
+  version = "0.6.2-unstable-2017-04-25";
 
-  src = fetchurl {
-    url = "http://zsync.moria.org.uk/download/zsync-${version}.tar.bz2";
-    hash = "sha256-C51TQzOHqk8EY0psY6XvqCAwcPIpivcqcF+b492mWvI=";
+  src = fetchFromGitHub {
+    owner = "cph6";
+    repo = "zsync";
+    rev = "6cfe374f8f2310cbd624664ca98e5bb28244ba7a";
+    hash = "sha256-SnCzNDMyhMx+2JmgsrjtYDa31Ki1EWix9iBfaduDnro=";
   };
 
-  env = lib.optionalAttrs stdenv.cc.isClang {
-    # Suppress error "call to undeclared library function 'strcasecmp'" during compilation.
-    # The function is found by the linker correctly, so this doesn't introduce any issues.
-    NIX_CFLAGS_COMPILE = " -Wno-implicit-function-declaration";
-  };
+  sourceRoot = "${src.name}/c";
+
+  patches = [
+    ./remove-inexisting-rsumtest.patch
+    ./read-blocksums-declaration-fix.patch
+  ];
 
   makeFlags = [ "AR=${stdenv.cc.bintools.targetPrefix}ar" ];
 
+  # Suppress error "call to undeclared library function 'strcasecmp'" during compilation.
+  # The function is found by the linker correctly, so this doesn't introduce any issues.
+  # Also supress errors that come from incompatible pointer types due to GCC 14 changes.
+  env.NIX_CFLAGS_COMPILE = toString (
+    lib.optionals stdenv.cc.isClang [
+      "-Wno-implicit-function-declaration"
+    ]
+    ++ lib.optionals stdenv.cc.isGNU [
+      "-Wno-error=incompatible-pointer-types"
+    ]
+  );
+
+  nativeBuildInputs = [
+    autoreconfHook
+  ];
+
   meta = with lib; {
     homepage = "http://zsync.moria.org.uk/";
     description = "File distribution system using the rsync algorithm";

pkgs/by-name/zs/zsync/read-blocksums-declaration-fix.patch

@@ -0,0 +1,13 @@
+diff --git a/libzsync/zsync.c b/libzsync/zsync.c
+index 793a426..783c349 100644
+--- a/libzsync/zsync.c
++++ b/libzsync/zsync.c
+@@ -116,7 +116,7 @@ struct zsync_state {
+ };
+ 
+ static int zsync_read_blocksums(struct zsync_state *zs, FILE * f,
+-                                int rsum_bytes, int checksum_bytes,
++                                int rsum_bytes, unsigned int checksum_bytes,
+                                 int seq_matches);
+ static int zsync_sha1(struct zsync_state *zs, int fh);
+ static int zsync_recompress(struct zsync_state *zs);

pkgs/by-name/zs/zsync/remove-inexisting-rsumtest.patch

@@ -0,0 +1,17 @@
+diff --git a/c/librcksum/Makefile.am b/c/librcksum/Makefile.am
+index 0216e49..f4fce72 100644
+--- a/librcksum/Makefile.am
++++ b/librcksum/Makefile.am
+@@ -2,9 +2,8 @@
+ 
+ noinst_LIBRARIES = librcksum.a
+ 
+-TESTS = md4test rsumtest
+-noinst_PROGRAMS = md4test rsumtest
++TESTS = md4test
++noinst_PROGRAMS = md4test
+ 
+ md4test_SOURCES = md4test.c md4.h md4.c
+-rsumtest_SOURCES = rsum.c rsumtest.c hash.c range.c state.c md4.c ../progress.c
+ librcksum_a_SOURCES = internal.h rcksum.h md4.h rsum.c hash.c state.c range.c md4.c
+