Fix MacOS build

CMakeLists.txt

@@ -34,7 +34,7 @@ if(APPLE)
   link_directories(/usr/local/lib /usr/local/opt/gettext/lib /usr/local/opt/libsigc++@2/lib)
   include_directories(/usr/local/opt/gettext/include)
   set(CMAKE_MACOSX_RPATH 1)
-  set(ENV{PKG_CONFIG_PATH} "$ENV{PKG_CONFIG_PATH}:/usr/local/lib/pkgconfig:/opt/X11/lib/pkgconfig:/usr/local/opt/libffi/lib/pkgconfig:/usr/local/opt/libsigc++@2/lib/pkgconfig")
+  set(ENV{PKG_CONFIG_PATH} "$ENV{PKG_CONFIG_PATH}:/usr/local/lib/pkgconfig:/opt/X11/lib/pkgconfig:/usr/local/opt/libffi/lib/pkgconfig:/usr/local/opt/libsigc++@2/lib/pkgconfig:/usr/local/opt/zlib/lib/pkgconfig:/usr/local/opt/libxml2/lib/pkgconfig")
 endif()
 if(${CMAKE_SYSTEM_NAME} MATCHES FreeBSD)
   link_directories(/usr/local/lib)

docs/install.md

@@ -111,7 +111,7 @@ On FreeBSD, latest release of juCi++ is available through the port: jucipp.
 ## MacOS with Homebrew (http://brew.sh/)
 Install dependencies:
 ```sh
-brew install cmake pkg-config boost gtksourceviewmm3 gnome-icon-theme aspell llvm clang-format libgit2 ctags
+brew install cmake pkg-config boost gtksourceviewmm3 gnome-icon-theme aspell llvm clang-format libgit2 ctags zlib libxml2
 ```
 
 Mojave users might need to install headers: