fix some packages on darwin

pkgs/development/compilers/llvm/3.4/llvm.nix

···
     license     = stdenv.lib.licenses.bsd3;
     maintainers = with stdenv.lib.maintainers; [ shlevy lovek323 raskin viric ];
     platforms   = stdenv.lib.platforms.all;
-    # broken      = stdenv.isDarwin;
   };
 }

pkgs/development/compilers/ocaml/4.01.0.nix

···
     sha256 = "b1ca708994180236917ae79e17606da5bd334ca6acd6873a550027e1c0ec874a";
   };
 
+  patches = [ ./fix-clang-build-on-osx.diff ];
+
   prefixKey = "-prefix ";
   configureFlags = ["-no-tk"] ++ optionals useX11 [ "-x11lib" x11lib
                                                     "-x11include" x11inc ];

pkgs/development/compilers/ocaml/fix-clang-build-on-osx.diff

···
+diff --git a/configure b/configure
+index d45e88f..25d872b 100755
+--- a/configure
++++ b/configure
+@@ -322,7 +322,14 @@ case "$bytecc,$target" in
+     bytecccompopts="-fno-defer-pop $gcc_warnings -DSHRINKED_GNUC"
+     mathlib="";;
+   *,*-*-darwin*)
+-    bytecccompopts="-fno-defer-pop $gcc_warnings"
++    # On recent version of OSX, gcc is a symlink to clang
++    if $bytecc --version | grep -q clang; then
++        # -fno-defer-pop is not supported by clang, and make recent
++        # versions of clang to fail
++        bytecccompopts="$gcc_warnings"
++    else
++        bytecccompopts="-fno-defer-pop $gcc_warnings"
++    fi
+     mathlib=""
+     mkexe="$mkexe -Wl,-no_compact_unwind"
+     # Tell gcc that we can use 32-bit code addresses for threaded code

pkgs/development/tools/misc/sloccount/default.nix

···
 
   configurePhase = ''
     sed -i "makefile" -"es|PREFIX[[:blank:]]*=.*$|PREFIX = $out|g"
+    sed -i "makefile" -"es|gcc|$CC|g"
   '';
 
   doCheck = true;

pkgs/shells/fish/default.nix

···
     description = "Smart and user-friendly command line shell";
     homepage = "http://fishshell.com/";
     license = licenses.gpl2;
-    platforms = platforms.linux;
+    platforms = platforms.unix;
     maintainers = with maintainers; [ ocharles ];
   };
 }

pkgs/tools/compression/bzip2/default.nix

···
   sharedLibrary =
     !stdenv.isDarwin && !(stdenv ? isDietLibC) && !(stdenv ? isStatic) && stdenv.system != "i686-cygwin" && !linkStatic;
 
+  patchPhase = stdenv.lib.optionalString stdenv.isDarwin "substituteInPlace Makefile --replace 'CC=gcc' 'CC=clang'";
+
   preConfigure = "substituteInPlace Makefile --replace '$(PREFIX)/man' '$(PREFIX)/share/man'";
 
   makeFlags = if linkStatic then "LDFLAGS=-static" else "";

pkgs/tools/networking/isync/default.nix

···
     license = [ "GPLv2+" ];
 
     maintainers = with stdenv.lib.maintainers; [ the-kenny viric ];
-    platforms = stdenv.lib.platforms.linux;
+    platforms = stdenv.lib.platforms.unix;
   };
 }

pkgs/tools/typesetting/tex/tex4ht/default.nix

···
     cd src
     for f in tex4ht t4ht htcmd ; do
       # -DENVFILE="$out/share/texmf-nix/tex4ht/base/unix/tex4ht.env"
-      gcc -o $f $f.c -I${tetex}/include -L${tetex}/lib  -DHAVE_DIRENT_H -DHAVE_DIRENT_H -DKPATHSEA -lkpathsea
+      $CC -o $f $f.c -I${tetex}/include -L${tetex}/lib  -DHAVE_DIRENT_H -DHAVE_DIRENT_H -DKPATHSEA -lkpathsea
     done
     cd -
   '';

pkgs/tools/typesetting/tex/texlive/default.nix

···
   setupHook = ./setup-hook.sh;
 
   doMainBuild = fullDepEntry ( stdenv.lib.optionalString stdenv.isDarwin ''
-    export MACOSX_DEPLOYMENT_TARGET=10.9
     export DYLD_LIBRARY_PATH="${poppler}/lib"
   '' + ''
     mkdir -p $out