treewide: fixup various mysql ocurrences after re-split

pkgs/applications/audio/amarok/default.nix

···
   nativeBuildInputs = [ automoc4 cmake perl pkgconfig ];
 
   buildInputs = [
-    qtscriptgenerator stdenv.cc.libc gettext curl libxml2 mysql.lib
+    qtscriptgenerator stdenv.cc.libc gettext curl libxml2 mysql.server/*libmysqld*/
     taglib taglib_extras loudmouth kdelibs phonon strigi soprano qca2
     libmtp liblastfm libgpod qjson ffmpeg libofa nepomuk_core
     lz4 lzo snappy libaio pcre

pkgs/applications/gis/grass/default.nix

···
   };
 
   buildInputs = [ flex bison zlib proj gdal libtiff libpng fftw sqlite pkgconfig cairo
-  readline ffmpeg makeWrapper wxGTK30 netcdf geos postgresql mysql.lib blas ]
+  readline ffmpeg makeWrapper wxGTK30 netcdf geos postgresql mysql.client blas ]
     ++ (with pythonPackages; [ python dateutil wxPython30 numpy sqlite3 ]);
 
   configureFlags = [
···
     "--with-netcdf"
     "--with-geos"
     "--with-postgres" "--with-postgres-libs=${postgresql.lib}/lib/"
-    "--with-mysql" "--with-mysql-includes=${mysql.lib}/include/mysql"
+    # it complains about missing libmysqld but doesn't really seem to need it
+    "--with-mysql" "--with-mysql-includes=${stdenv.lib.getDev mysql.client}/include/mysql"
     "--with-blas"
   ];
 

pkgs/development/compilers/hhvm/default.nix

···
   };
 
   buildInputs =
-    [ cmake pkgconfig boost libunwind mariadb libmemcached pcre gdb git perl
+    [ cmake pkgconfig boost libunwind mariadb.client libmemcached pcre gdb git perl
       libevent gd curl libxml2 icu flex bison openssl zlib php expat libcap
       oniguruma libdwarf libmcrypt tbb gperftools bzip2 openldap readline
       libelf uwimap binutils cyrus_sasl pam glog libpng libxslt ocaml libkrb5
···
   enableParallelBuilding = false; # occasional build problems;
   dontUseCmakeBuildDir = true;
   NIX_LDFLAGS = "-lpam -L${pam}/lib";
-  MYSQL_INCLUDE_DIR="${mariadb}/include/mysql";
-  MYSQL_DIR=mariadb;
 
   # work around broken build system
   NIX_CFLAGS_COMPILE = "-I${freetype.dev}/include/freetype2";

pkgs/development/compilers/urweb/default.nix

···
-{ stdenv, fetchurl, file, openssl, mlton
+{ stdenv, lib, fetchurl, file, openssl, mlton
 , mysql, postgresql, sqlite
 }:
 
···
     sha256 = "08km96hli5yp754nsxxjzih2la0m89j5wc2cq12rkas43nqqgr65";
   };
 
-  buildInputs = [ openssl mlton mysql postgresql sqlite ];
+  buildInputs = [ openssl mlton mysql.client postgresql sqlite ];
 
   prePatch = ''
     sed -e 's@/usr/bin/file@${file}/bin/file@g' -i configure
···
 
   preConfigure = ''
     export PGHEADER="${postgresql}/include/libpq-fe.h";
-    export MSHEADER="${mysql.lib}/include/mysql/mysql.h";
+    export MSHEADER="${lib.getDev mysql.client}/include/mysql/mysql.h";
     export SQHEADER="${sqlite.dev}/include/sqlite3.h";
 
     export CCARGS="-I$out/include \
-                   -L${mysql.lib}/lib/mysql \
+                   -L${lib.getLib mysql.client}/lib/mysql \
                    -L${postgresql.lib}/lib \
                    -L${sqlite.out}/lib";
   '';

pkgs/development/interpreters/php/default.nix

···
         };
 
         mysql = {
-          configureFlags = ["--with-mysql=${mysql.lib}"];
+          configureFlags = ["--with-mysql"];
           buildInputs = [ mysql.lib ];
         };
 

pkgs/development/libraries/libdbi-drivers/default.nix

···
     "--with-dbi-libdir=${libdbi}/lib"
   ] ++ optionals (libmysql != null) [
     "--with-mysql"
-    "--with-mysql-incdir=${libmysql}/include/mysql"
-    "--with-mysql-libdir=${libmysql}/lib/mysql"
   ] ++ optionals (postgresql != null) [
     "--with-pgsql"
     "--with-pgsql_incdir=${postgresql}/include"

pkgs/development/libraries/opendbx/default.nix

···
 { stdenv, fetchurl, readline, mysql, postgresql, sqlite }:
 
+let
+  inherit (stdenv.lib) getDev getLib;
+in
 stdenv.mkDerivation rec {
   name = "opendbx-1.4.6";
 
···
   };
 
   preConfigure = ''
-    export CPPFLAGS="-I${mysql.lib}/include/mysql"
-    export LDFLAGS="-L${mysql.lib}/lib/mysql"
+    export CPPFLAGS="-I${getDev mysql.client}/include/mysql"
+    export LDFLAGS="-L${getLib mysql.client}/lib/mysql -L${getLib postgresql}/lib"
     configureFlagsArray=(--with-backends="mysql pgsql sqlite3")
   '';
 
-  buildInputs = [ readline mysql.lib postgresql sqlite ];
+  buildInputs = [ readline mysql.client postgresql sqlite ];
 }

pkgs/development/libraries/qt-3/default.nix

···
       -I${randrproto}/include" else "-no-xrandr"}
     ${if xineramaSupport then "-xinerama -L${libXinerama.out}/lib -I${libXinerama.dev}/include" else "-no-xinerama"}
     ${if cursorSupport then "-L${libXcursor.out}/lib -I${libXcursor.dev}/include" else ""}
-    ${if mysqlSupport then "-qt-sql-mysql -L${mysql.lib}/lib/mysql -I${mysql.lib}/include/mysql" else ""}
+    ${if mysqlSupport then "-qt-sql-mysql -L${stdenv.lib.getLib mysql.client}/lib/mysql -I${mysql.client}/include/mysql" else ""}
     ${if xftSupport then "-xft
       -L${libXft.out}/lib -I${libXft.dev}/include
       -L${libXft.freetype.out}/lib -I${libXft.freetype.dev}/include

pkgs/development/lisp-modules/lisp-packages.nix

···
     version = "git-20150514";
     description = "Common Lisp SQL Interface library";
     deps = [uffi];
-    buildInputs = [pkgs.mysql.lib pkgs.zlib];
+    buildInputs = [pkgs.mysql.client pkgs.zlib];
     # Source type: git
     src = pkgs.fetchgit {
       url =
···
     };
     overrides = x:{
       preConfigure = ''
-        export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -I${pkgs.mysql.lib}/include/mysql"
-        export NIX_LDFLAGS="$NIX_LDFLAGS -L${pkgs.mysql.lib}/lib/mysql"
+        export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -I${stdenv.lib.getDev pkgs.mysql.client}/include/mysql"
+        export NIX_LDFLAGS="$NIX_LDFLAGS -L${stdenv.lib.getLib pkgs.mysql.client}/lib/mysql"
       '';
     };
   };

pkgs/development/ocaml-modules/mysql/default.nix

···
      "--libdir=$out/lib/ocaml/${ocaml_version}/site-lib/mysql"
   ];
 
-  buildInputs = [ocaml findlib mysql.lib camlp4 ];
+  buildInputs = [ocaml findlib camlp4 ];
 
   createFindlibDestdir = true;
 
-  propagatedBuildInputs = [ mysql.lib ];
-
-  preConfigure = ''
-    export LDFLAGS="-L${mysql.lib}/lib/mysql"
-  '';
+  propagatedBuildInputs = [ mysql.client ];
 
   buildPhase = ''
     make

pkgs/development/pure-modules/glpk/default.nix

···
 
     preConfigure = ''
       substituteInPlace configure \
-        --replace /usr/include/mysql ${libmysql}/include/mysql
+        --replace /usr/include/mysql ${lib.getDev libmysql}/include/mysql
     '';
     configureFlags = [ "--enable-dl"
                        "--enable-odbc"

pkgs/games/zod/default.nix

···
   buildInputs = [ unrar unzip SDL SDL_image SDL_ttf SDL_mixer libmysql
     makeWrapper ];
 
-  NIX_LDFLAGS="-L${libmysql}/lib/mysql";
+  NIX_LDFLAGS="-L${stdenv.lib.getLib libmysql}/lib/mysql";
 
   installPhase = ''
     mkdir -p $out/bin $out/share/zod

pkgs/servers/mail/dspam/default.nix

···
     "--enable-preferences-extension"
     "--enable-long-usernames"
     "--enable-external-lookup"
-  ] ++ lib.optional withMySQL "--with-mysql-includes=${libmysql}/include/mysql"
+  ] ++ lib.optional withMySQL "--with-mysql-includes=${lib.getDev libmysql}/include/mysql"
     ++ lib.optional withPgSQL "--with-pgsql-libraries=${postgresql.lib}/lib";
 
   # Lots of things are hardwired to paths like sysconfdir. That's why we install with both "prefix" and "DESTDIR"

pkgs/servers/mail/postfix/default.nix

···
     "-DHAS_DB_BYPASS_MAKEDEFS_CHECK"
     "-fPIE" "-fstack-protector-all" "--param" "ssp-buffer-size=4" "-O2" "-D_FORTIFY_SOURCE=2"
    ] ++ lib.optional withPgSQL "-DHAS_PGSQL"
-     ++ lib.optionals withMySQL [ "-DHAS_MYSQL" "-I${libmysql}/include/mysql" ]
+     ++ lib.optionals withMySQL [ "-DHAS_MYSQL" "-I${lib.getDev libmysql}/include/mysql" ]
      ++ lib.optional withSQLite "-DHAS_SQLITE");
    auxlibs = lib.concatStringsSep " " ([
      "-ldb" "-lnsl" "-lresolv" "-lsasl2" "-lcrypto" "-lssl" "-pie" "-Wl,-z,relro,-z,now"

pkgs/servers/restund/default.nix

···
   ++ stdenv.lib.optional (stdenv.cc.cc != null) "SYSROOT_ALT=${stdenv.cc.cc}"
   ++ stdenv.lib.optional (stdenv.cc.libc != null) "SYSROOT=${stdenv.cc.libc}"
   ;
-  NIX_LDFLAGS='' -L${mysql.lib}/lib/mysql '';
+  NIX_LDFLAGS='' -L${stdenv.lib.getLib mysql.client}/lib/mysql '';
   meta = {
     homepage = "http://www.creytiv.com/restund.html";
     platforms = with stdenv.lib.platforms; linux;