Correct signatures for FinalizerPtrs

Codec/Compression/Zlib/Stream.hsc

@@ -1070,7 +1070,7 @@ c_deflateInit2 z a b c d e =
 foreign import ccall SAFTY "zlib.h inflate"
   c_inflate :: StreamState -> CInt -> IO CInt
 
-foreign import ccall unsafe "zlib.h &inflateEnd"
+foreign import ccall unsafe "hs-zlib.h &hsInflateEnd"
   c_inflateEnd :: FinalizerPtr StreamState
 
 foreign import ccall unsafe "zlib.h inflateReset"
@@ -1091,7 +1091,7 @@ foreign import ccall unsafe "zlib.h inflateSetDictionary"
 foreign import ccall SAFTY "zlib.h deflate"
   c_deflate :: StreamState -> CInt -> IO CInt
 
-foreign import ccall unsafe "zlib.h &deflateEnd"
+foreign import ccall unsafe "hs-zlib.h &hsDeflateEnd"
   c_deflateEnd :: FinalizerPtr StreamState
 
 foreign import ccall unsafe "zlib.h zlibVersion"

cabal.project.local

@@ -0,0 +1,22 @@
+if os(wasi)
+  -- https://github.com/haskellari/splitmix/pull/73
+  source-repository-package
+    type: git
+    location: https://github.com/amesgen/splitmix
+    tag: ebd790e992a83fe1b16b6182677106295d9afba2
+
+  -- https://github.com/UnkindPartition/tasty/pull/365
+  source-repository-package
+    type: git
+    location: https://github.com/UnkindPartition/tasty
+    subdir: core
+    tag: 88a0258702e0784fc26e1c1db6c0bcb3bd49904a
+
+  package zlib
+    flags: +bundled-c-zlib
+
+  package splitmix
+    tests: False
+    benchmarks: False
+
+  allow-newer: zlib:tasty

cbits-extra/hs-zlib.c

@@ -0,0 +1,9 @@
+#include "extras.h"
+
+void hsInflateEnd(z_streamp strm) {
+  inflateEnd(strm);
+}
+
+void hsDeflateEnd(z_streamp strm) {
+  deflateEnd(strm);
+}

cbits-extra/hs-zlib.h

@@ -0,0 +1,8 @@
+#ifndef HS_ZLIB_EXTRAS
+#define HS_ZLIB_EXTRAS
+
+#include "zlib.h"
+
+void hsInflateEnd(z_streamp strm);
+void hsDeflateEnd(z_streamp strm);
+#endif

zlib.cabal

@@ -101,7 +101,10 @@ library
   if impl(ghc >= 7.0 && < 8.0.3)
     build-depends: ghc-prim
 
-  includes:        zlib.h
+  includes:        zlib.h hs-zlib.h
+  install-includes: hs-zlib.h
+  include-dirs:    cbits-extra
+  c-sources:       cbits-extra/hs-zlib.c
   ghc-options:     -Wall -fwarn-tabs
   if flag(non-blocking-ffi)
     cpp-options:   -DNON_BLOCKING_FFI