Fixes suitable for mingw32 builds

COMPILING.md

@@ -208,11 +208,10 @@ project, and you prefer a Visual Studio project file, you can find a
 simple one in `otherbuilds\rubberband-library.vcxproj`.
 
 The rest of this section describes the "full" build system, which uses
-Meson just as on the other platforms. So to build this way, start by
+Meson, just as on the other platforms. To build this way, first ensure
-ensuring Meson and Ninja are installed and available. Then, in a
+Meson and Ninja are installed and available. Then, in a terminal
-terminal window with the compiler tools available in the path (e.g. a
+window with the compiler tools available in the path (e.g. a Visual
-Visual Studio command-line prompt for the relevant build architecture)
+Studio command-line prompt for the relevant build architecture) run
-run
 
 ```
 > meson build
@@ -232,6 +231,10 @@ option `b_vscrt`:
 > meson build -Db_vscrt=mt
 ```
 
+Accepted arguments include `mt` for the static runtime (`libcmt`),
+`md` for the dynamic one (`msvcrt`), `mtd` for the static debug
+runtime, and `mdd` for the dynamic debug one.
+
 See "FFT and resampler selection" below for further build options.
 
 

src/common/FFT.cpp

@@ -27,6 +27,7 @@
 #include "Allocators.h"
 #include "VectorOps.h"
 #include "VectorOpsComplex.h"
+#include "mathmisc.h"
 
 // Define USE_FFTW_WISDOM if you are defining HAVE_FFTW3 and you want
 // to use FFTW_MEASURE mode with persistent wisdom files. This will

src/common/Window.h

@@ -29,6 +29,7 @@
 #include <map>
 
 #include "sysutils.h"
+#include "mathmisc.h"
 #include "VectorOps.h"
 #include "Allocators.h"
 

src/faster/SincWindow.h

@@ -30,6 +30,7 @@
 #include <map>
 
 #include "../common/sysutils.h"
+#include "../common/mathmisc.h"
 #include "../common/VectorOps.h"
 #include "../common/Allocators.h"