Various fixes for mingw

plugins/sysinfo/meson.build

@@ -5,7 +5,8 @@ sysinfo_sources = [
 
 sysinfo_deps = [
   libgio_dep,
-  hexchat_plugin_dep
+  hexchat_plugin_dep,
+  common_sysinfo_deps,
 ]
 
 sysinfo_includes = []
@@ -41,7 +42,10 @@ if system == 'linux' or system == 'darwin'
   endif
 
 elif system == 'windows'
-  sysinfo_sources += 'win32/backend.c'
+  sysinfo_sources += [
+    'win32/backend.c',
+    '../../src/common/sysinfo/win32/backend.c'
+  ]
 else
   error('sysinfo: Unknown system?')
 endif

plugins/sysinfo/win32/backend.c

@@ -30,14 +30,7 @@
 
 #include "../format.h"
 
-static int command_callback (char *word[], char *word_eol[], void *user_data);
-
-void print_info (void);
-
-guint64 hdd_capacity;
-guint64 hdd_free_space;
-char *read_hdd_info (IWbemClassObject *object);
-char *get_memory_info (void);
+static char *get_memory_info (void);
 
 char *
 sysinfo_backend_get_sound (void)
@@ -98,11 +91,6 @@ sysinfo_backend_get_os (void)
 	return sysinfo_get_os ();
 }
 
-static int get_cpu_arch (void)
-{
-	return sysinfo_get_cpu_arch ();
-}
-
 static char *get_memory_info (void)
 {
 	MEMORYSTATUSEX meminfo = { 0 };