diff --git a/CMakeLists.txt b/CMakeLists.txt
index e8e16011..3af34052 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -333,6 +333,10 @@ if ( WIN32 )
   if ( MINGW )
     set ( MINGW32 1 )
     add_compile_options ( -mms-bitfields )
+    # mman-win32
+    if ( HAVE_SYS_MMAN_H )
+      set ( WINDOWS_LIBS "${WINDOWS_LIBS};mman" )
+    endif ()
   endif  ( MINGW )
 else ( WIN32 )
 # Check PThreads, but not in Windows
@@ -514,6 +518,7 @@ else(NOT enable-pkgconfig)
 
     # Mandatory libraries: glib and gthread
     pkg_check_modules ( GLIB REQUIRED glib-2.0>=2.6.5 gthread-2.0>=2.6.5 )
+    list( APPEND PC_REQUIRES_PRIV "glib-2.0" "gthread-2.0")
 
     if ( GLIB_glib-2.0_VERSION AND GLIB_glib-2.0_VERSION VERSION_LESS "2.26.0" )
         message ( WARNING "Your version of glib is very old. This may cause problems with fluidsynth's sample cache on Windows. Consider updating to glib 2.26 or newer!" )
@@ -528,6 +533,7 @@ else(NOT enable-pkgconfig)
     pkg_check_modules ( LIBSNDFILE sndfile>=1.0.0 )
     set ( LIBSNDFILE_SUPPORT ${LIBSNDFILE_FOUND} )
     if ( LIBSNDFILE_SUPPORT )
+        list( APPEND PC_REQUIRES_PRIV "sndfile")
         message (DEBUG "LIBSNDFILE_STATIC_LIBRARIES: ${LIBSNDFILE_STATIC_LIBRARIES}")
         message (DEBUG "LIBSNDFILE_STATIC_LINK_LIBRARIES: ${LIBSNDFILE_STATIC_LINK_LIBRARIES}")
         message (DEBUG "LIBSNDFILE_STATIC_LDFLAGS: ${LIBSNDFILE_STATIC_LDFLAGS}")
@@ -549,6 +555,9 @@ else(NOT enable-pkgconfig)
     if ( enable-pulseaudio )
     pkg_check_modules ( PULSE libpulse-simple>=0.9.8 )
     set ( PULSE_SUPPORT ${PULSE_FOUND} )
+    if ( PULSE_SUPPORT )
+      list( APPEND PC_REQUIRES_PRIV "libpulse-simple")
+    endif ( PULSE_SUPPORT )
     else ( enable-pulseaudio )
     unset_pkg_config ( PULSE )
     endif ( enable-pulseaudio )
@@ -557,6 +566,9 @@ else(NOT enable-pkgconfig)
     if ( enable-alsa )
     pkg_check_modules ( ALSA alsa>=0.9.1 )
     set ( ALSA_SUPPORT ${ALSA_FOUND} )
+    if ( ALSA_SUPPORT )
+      list( APPEND PC_REQUIRES_PRIV "alsa")
+    endif ( ALSA_SUPPORT )
     else ( enable-alsa )
     unset_pkg_config ( ALSA )
     endif ( enable-alsa )
@@ -565,6 +577,9 @@ else(NOT enable-pkgconfig)
     if ( enable-portaudio )
     pkg_check_modules ( PORTAUDIO portaudio-2.0>=19 )
     set ( PORTAUDIO_SUPPORT ${PORTAUDIO_FOUND} )
+    if ( PORTAUDIO_SUPPORT )
+      list( APPEND PC_REQUIRES_PRIV "portaudio-2.0")
+    endif ()
     else ( enable-portaudio )
     unset_pkg_config ( PORTAUDIO )
     endif ( enable-portaudio )
@@ -573,6 +588,9 @@ else(NOT enable-pkgconfig)
     if ( enable-jack )
     pkg_check_modules ( JACK jack )
     set ( JACK_SUPPORT ${JACK_FOUND} )
+    if ( JACK_SUPPORT )
+      list( APPEND PC_REQUIRES_PRIV "jack")
+    endif ()
     else ( enable-jack )
     unset_pkg_config ( JACK )
     endif ( enable-jack )
@@ -583,6 +601,7 @@ else(NOT enable-pkgconfig)
     if ( LASH_FOUND )
         set ( LASH_SUPPORT 1 )
         add_definitions ( -DHAVE_LASH )
+        list( APPEND PC_REQUIRES_PRIV "lash-1.0")
     endif ( LASH_FOUND )
     else ( enable-lash )
     unset_pkg_config ( LASH )
@@ -593,6 +612,9 @@ else(NOT enable-pkgconfig)
     if ( enable-systemd )
         pkg_check_modules ( SYSTEMD libsystemd )
         set ( SYSTEMD_SUPPORT ${SYSTEMD_FOUND} )
+        if ( SYSTEMD_SUPPORT )
+          list( APPEND PC_REQUIRES_PRIV "libsystemd")
+        endif ( SYSTEMD_SUPPORT )
     else ( enable-systemd )
         unset_pkg_config ( SYSTEMD )
     endif ( enable-systemd )
@@ -601,6 +623,9 @@ else(NOT enable-pkgconfig)
     if ( enable-dbus )
     pkg_check_modules ( DBUS dbus-1>=1.0.0 )
     set ( DBUS_SUPPORT ${DBUS_FOUND} )
+    if ( DBUS_SUPPORT )
+      list( APPEND PC_REQUIRES_PRIV "dbus-1")
+    endif ()
     else ( enable-dbus )
     unset_pkg_config ( DBUS )
     endif ( enable-dbus )
@@ -611,6 +636,7 @@ else(NOT enable-pkgconfig)
     if ( LADSPA_SUPPORT )
         pkg_check_modules ( GMODULE REQUIRED gmodule-2.0>=2.6.5 )
         set ( LADSPA 1 )
+        list( APPEND PC_REQUIRES_PRIV "gmodule-2.0")
     endif ( LADSPA_SUPPORT )
     endif ( enable-ladspa )
 
@@ -618,25 +644,30 @@ else(NOT enable-pkgconfig)
     if ( enable-libinstpatch )
         pkg_check_modules ( LIBINSTPATCH libinstpatch-1.0>=1.1.0 )
         set ( LIBINSTPATCH_SUPPORT ${LIBINSTPATCH_FOUND} )
+        if ( LIBINSTPATCH_SUPPORT )
+          list( APPEND PC_REQUIRES_PRIV "libinstpatch-1.0")
+        endif (LIBINSTPATCH_SUPPORT )
     endif ( enable-libinstpatch )
 
     unset ( SDL2_SUPPORT CACHE )
     if ( enable-sdl2 )
         pkg_check_modules ( SDL2 sdl2 )
         set ( SDL2_SUPPORT ${SDL2_FOUND} )
+        if ( SDL2_SUPPORT )
+          list( APPEND PC_REQUIRES_PRIV "sdl2")
+        endif ( SDL2_SUPPORT )
     else ( enable-sdl2 )
         unset_pkg_config ( SDL2 )
     endif ( enable-sdl2 )
 
     unset ( OBOE_SUPPORT CACHE )
-    unset ( OBOE_LIBS CACHE )
     if ( enable-oboe )
       pkg_check_modules ( OBOE oboe-1.0 )
       if ( OBOE_FOUND )
         set(CMAKE_CXX_STANDARD 14)
         set(CMAKE_CXX_STANDARD_REQUIRED ON)
         set ( OBOE_SUPPORT 1 )
-        set ( OBOE_LIBS ${OBOE_LIBRARIES} )
+        list( APPEND PC_REQUIRES_PRIV "oboe-1.0")
       endif ( OBOE_FOUND )
     endif ( enable-oboe )
 
@@ -644,10 +675,12 @@ else(NOT enable-pkgconfig)
     unset ( READLINE_LIBS CACHE )
     if ( enable-readline )
     pkg_check_modules ( READLINE readline )
-    if ( NOT READLINE_FOUND )
+    if ( READLINE_FOUND )
+        list( APPEND PC_REQUIRES_PRIV "readline")
+    else ( READLINE_FOUND )
         find_package ( READLINE )
         set ( READLINE_FOUND ${HAVE_READLINE} )
-    endif ( NOT READLINE_FOUND )
+    endif ( READLINE_FOUND )
     if ( READLINE_FOUND )
         set ( WITH_READLINE 1 )
         set ( READLINE_LIBS ${READLINE_LIBRARIES} )
@@ -852,6 +885,8 @@ else ()
     message ( DEPRECATION "Your version of CMake is old. A complete pkg-config file can not created. Get cmake 3.13.3 or newer." )
 endif ( CMAKE_VERSION VERSION_EQUAL "3.12.0" OR CMAKE_VERSION VERSION_GREATER "3.12.0" )
 
+list ( JOIN PC_REQUIRES_PRIV " " PC_REQUIRES_PRIV_JOINED )
+
 configure_file ( fluidsynth.pc.in
 	${CMAKE_BINARY_DIR}/fluidsynth.pc IMMEDIATE @ONLY )
 install ( FILES ${CMAKE_BINARY_DIR}/fluidsynth.pc
diff --git a/fluidsynth.pc.in b/fluidsynth.pc.in
index f66d5dd3..ecacb6f7 100644
--- a/fluidsynth.pc.in
+++ b/fluidsynth.pc.in
@@ -6,6 +6,7 @@ includedir=@includedir@
 Name: FluidSynth
 Description: Software SoundFont synth
 Version: @VERSION@
+Requires.private: @PC_REQUIRES_PRIV_JOINED@
 Libs: -L${libdir} -lfluidsynth
 Libs.private: @LIBS_PRIVATE_JOINED@ @LIBS_PRIVATE_WITH_PATH_JOINED@
 Cflags: -I${includedir}
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e913cb21..4f3ef86a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -366,7 +366,7 @@ target_link_libraries ( libfluidsynth
     ${WINDOWS_LIBS}
     ${MidiShare_LIBS}
     ${OpenSLES_LIBS}
-    ${OBOE_LIBS}
+    ${OBOE_LIBRARIES}
     ${LIBFLUID_LIBS}
     ${LIBINSTPATCH_LIBRARIES}
 )