1 files changed, 17 insertions, 7 deletions

diff --git a/nixpkgs/pkgs/development/compilers/ghc/8.8.2.nix b/nixpkgs/pkgs/development/compilers/ghc/8.8.2.nix
index 305226b3407..371a369496e 100644
--- a/nixpkgs/pkgs/development/compilers/ghc/8.8.2.nix
+++ b/nixpkgs/pkgs/development/compilers/ghc/8.8.2.nix
@@ -52,19 +52,28 @@ let
     (targetPlatform != hostPlatform)
     "${targetPlatform.config}-";
 
-  buildMK = ''
+  buildMK = dontStrip: ''
     BuildFlavour = ${ghcFlavour}
     ifneq \"\$(BuildFlavour)\" \"\"
     include mk/flavours/\$(BuildFlavour).mk
     endif
     DYNAMIC_GHC_PROGRAMS = ${if enableShared then "YES" else "NO"}
     INTEGER_LIBRARY = ${if enableIntegerSimple then "integer-simple" else "integer-gmp"}
-  '' + stdenv.lib.optionalString (targetPlatform != hostPlatform) ''
-    Stage1Only = ${if targetPlatform.system == hostPlatform.system then "NO" else "YES"}
+  ''
+    # We only need to build stage1 on most cross-compilation because
+    # we will be running the compiler on the native system. In some
+    # situations, like native Musl compilation, we need the compiler
+    # to actually link to our new Libc. The iOS simulator is a special
+    # exception because we can’t actually run simulators binaries
+    # ourselves.
+  + stdenv.lib.optionalString (targetPlatform != hostPlatform) ''
+    Stage1Only = ${if (targetPlatform.system == hostPlatform.system && !targetPlatform.isiOS) then "NO" else "YES"}
     CrossCompilePrefix = ${targetPrefix}
     HADDOCK_DOCS = NO
     BUILD_SPHINX_HTML = NO
     BUILD_SPHINX_PDF = NO
+  '' + stdenv.lib.optionalString dontStrip ''
+    STRIP_CMD = :
   '' + stdenv.lib.optionalString enableRelocatedStaticLibs ''
     GhcLibHcOpts += -fPIC
     GhcRtsHcOpts += -fPIC
@@ -94,7 +103,7 @@ stdenv.mkDerivation (rec {
   name = "${targetPrefix}ghc-${version}";
 
   src = fetchurl {
-    url = "https://downloads.haskell.org/ghc/8.8.2/ghc-${version}-src.tar.xz";
+    url = "https://downloads.haskell.org/ghc/${version}/ghc-${version}-src.tar.xz";
     sha256 = "02qa6wgjpxgakg7hv4zfdlrx9k7zxa5i02wnr6y9fsv8j16sbkh1";
   };
 
@@ -122,7 +131,7 @@ stdenv.mkDerivation (rec {
     export READELF="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}readelf"
     export STRIP="${targetCC.bintools.bintools}/bin/${targetCC.bintools.targetPrefix}strip"
 
-    echo -n "${buildMK}" > mk/build.mk
+    echo -n "${buildMK dontStrip}" > mk/build.mk
     sed -i -e 's|-isysroot /Developer/SDKs/MacOSX10.5.sdk||' configure
   '' + stdenv.lib.optionalString (!stdenv.isDarwin) ''
     export NIX_LDFLAGS+=" -rpath $out/lib/ghc-${version}"
@@ -235,8 +244,9 @@ stdenv.mkDerivation (rec {
     inherit (ghc.meta) license platforms;
   };
 
-} // stdenv.lib.optionalAttrs targetPlatform.useAndroidPrebuilt {
-  dontStrip = true;
+  dontStrip = (targetPlatform.useAndroidPrebuilt || targetPlatform.isWasm);
+
+} // stdenv.lib.optionalAttrs targetPlatform.useAndroidPrebuilt{
   dontPatchELF = true;
   noAuditTmpdir = true;
 })