fluisynth: add mman-win32 dependency

fixes #2399

src/fluidsynth-1-fixes.patch

@@ -5,7 +5,7 @@ Contains ad hoc patches for cross building.
 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
 From: Tony Theodore <tonyt@logyst.com>
 Date: Sun, 8 Sep 2019 18:22:33 +1000
-Subject: [PATCH 1/2] Allow optional build of bins, docs, and tests
+Subject: [PATCH 1/3] Allow optional build of bins, docs, and tests
 
 
 diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -98,7 +98,7 @@ index 1111111..2222222 100644
 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
 From: Tony Theodore <tonyt@logyst.com>
 Date: Sun, 8 Sep 2019 18:24:56 +1000
-Subject: [PATCH 2/2] Set *.pc libs/requires based on detected features
+Subject: [PATCH 2/3] Set *.pc libs/requires based on detected features
 
 
 diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -171,3 +171,26 @@ index 1111111..2222222 100644
 +Requires: @PC_REQUIRES@
 +Libs: -L${libdir} -lfluidsynth @PC_LIBS@
  Cflags: -I${includedir}
+
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Tony Theodore <tonyt@logyst.com>
+Date: Sat, 14 Sep 2019 12:09:14 +1000
+Subject: [PATCH 3/3] use detected mman libs
+
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 1111111..2222222 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -261,6 +261,11 @@ if ( WIN32 )
+   if ( MINGW )
+     set ( MINGW32 1 )
+     add_compile_options ( -mms-bitfields )
++    # mman-win32
++    if ( HAVE_SYS_MMAN_H )
++        set ( WINDOWS_LIBS "${WINDOWS_LIBS};mman" )
++        set ( PC_LIBS "${PC_LIBS} -lmman" )
++    endif ()
+   endif  ( MINGW )
+ else ( WIN32 )
+ # Check PThreads, but not in Windows

src/fluidsynth.mk

@@ -7,7 +7,7 @@ $(PKG)_IGNORE   :=
 $(PKG)_VERSION  := 2.0.6
 $(PKG)_CHECKSUM := e97e63c1045e102465f1aa848f9d712c5528c58685b8d40062e4aaf6af7edb75
 $(PKG)_GH_CONF  := FluidSynth/fluidsynth/tags,v
-$(PKG)_DEPS     := cc dbus glib jack libsndfile portaudio
+$(PKG)_DEPS     := cc dbus glib jack libsndfile mman-win32 portaudio
 
 define $(PKG)_BUILD
     cd '$(BUILD_DIR)' && '$(TARGET)-cmake' '$(SOURCE_DIR)' \