app, libgimpbase, plug-ins, tools: Include missing IO headers if on Windows

Otherwise, gimp fails to build on MSVC

app/errors.c

@@ -32,6 +32,9 @@
 #include <gegl.h>
 
 #include "libgimpbase/gimpbase.h"
+#ifdef G_OS_WIN32
+#include "libgimpbase/gimpwin32-io.h"
+#endif
 
 #include "core/core-types.h"
 

app/tests/test-xcf.c

@@ -23,7 +23,7 @@
 #include <unistd.h>
 #endif
 
-#ifdef G_OS_WIN32
+#ifdef _WIN32
 #define STRICT
 #define WIN32_LEAN_AND_MEAN
 #include <windows.h>

app/text/gimpfontfactory.c

@@ -23,6 +23,10 @@
 
 #include "config.h"
 
+#ifdef _WIN32
+#include <io.h>
+#endif
+
 #include <fcntl.h>
 #include <glib/gstdio.h>
 #include <gdk-pixbuf/gdk-pixbuf.h>

app/tools/gimptool.c

@@ -17,6 +17,10 @@
 
 #include "config.h"
 
+#ifdef _WIN32
+#include <stdio.h>
+#endif
+
 #include <gegl.h>
 #include <gtk/gtk.h>
 

libgimpbase/gimpenv.c

@@ -36,6 +36,10 @@
 #include <gio/gio.h>
 #include <glib/gstdio.h>
 
+#ifdef G_OS_WIN32
+#include "libgimpbase/gimpwin32-io.h"
+#endif
+
 #include "gimpbasetypes.h"
 
 #define __GIMP_ENV_C__

plug-ins/common/file-compressor.c

@@ -78,6 +78,9 @@
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
+#ifdef _WIN32
+#include <io.h>
+#endif
 
 #include <glib/gstdio.h>
 #ifndef _O_BINARY

tools/gimp-test-clipboard.c

@@ -17,6 +17,11 @@
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
+#if defined(_WIN32) && !defined(HAVE_UNISTD_H)
+#include <io.h>
+#define popen  _popen
+#define pclose _pclose
+#endif
 
 #include <glib/gstdio.h>
 #ifndef _O_BINARY

tools/gimptool.c

@@ -37,6 +37,11 @@
 
 #ifdef G_OS_WIN32
 #include "libgimpbase/gimpwin32-io.h"
+#ifndef HAVE_UNISTD_H
+#include <io.h>
+#define popen  _popen
+#define pclose _pclose
+#endif
 #endif