Fixed MSVC warnings, all inocuous

src/common/conf_post.h

@@ -50,3 +50,5 @@ typedef int ssize_t;
 #define lstat stat
 
 #endif // _WIN32
+
+#define PRETEND_USE(expr) ((void)(expr))

src/common/rclconfig.cpp

@@ -969,7 +969,7 @@ bool RclConfig::readFieldsConfig(const string& cnferrloc)
                    "]: [" << val << "]\n");
             return 0;
         }
-        ft.wdfinc = attrs.getInt("wdfinc", 1);
+        ft.wdfinc = (int)attrs.getInt("wdfinc", 1);
         ft.boost = attrs.getFloat("boost", 1.0);
         ft.pfxonly = attrs.getBool("pfxonly", false);
         ft.noterms = attrs.getBool("noterms", false);
@@ -1012,7 +1012,7 @@ bool RclConfig::readFieldsConfig(const string& cnferrloc)
                 return 0;
             }
         }
-        int valuelen = attrs.getInt("len", 0);
+        int valuelen = (int)attrs.getInt("len", 0);
         // Find or insert traits entry
         const auto pit =
             m_fldtotraits.insert(

src/common/rclinit.cpp

@@ -224,7 +224,7 @@ bool CreateInvisibleWindow()
     return TRUE;
 }
 
-DWORD WINAPI RunInvisibleWindowThread(LPVOID lpParam)
+DWORD WINAPI RunInvisibleWindowThread(LPVOID)
 {
     MSG msg;
     CreateInvisibleWindow();

src/common/textsplit.cpp

@@ -319,18 +319,22 @@ static inline int whatcc(unsigned int c, char *asciirep = nullptr)
 
 bool TextSplit::isCJK(int c)
 {
+    PRETEND_USE(c);
     return UNICODE_IS_CJK(c);
 }
 bool TextSplit::isKATAKANA(int c)
 {
+    PRETEND_USE(c);
     return UNICODE_IS_KATAKANA(c);
 }
 bool TextSplit::isHANGUL(int c)
 {
+    PRETEND_USE(c);
     return UNICODE_IS_HANGUL(c);
 }
 bool TextSplit::isNGRAMMED(int c)
 {
+    PRETEND_USE(c);
     return UNICODE_IS_CJK(c) && !UNICODE_IS_KATAKANA(c) &&
         !UNICODE_IS_HANGUL(c);
 }
@@ -359,6 +363,8 @@ inline bool TextSplit::emitterm(bool isspan, string &w, int pos,
     // long words because stats are used to detect bad text
     if (!isspan || m_wordLen == m_span.length())
         m_stats.newsamp(m_wordChars);
+#else
+    PRETEND_USE(isspan);
 #endif
 
     if (l > 0 && l <= o_maxWordLength) {

src/common/utf8fn.cpp

@@ -1,3 +1,22 @@
+/* Copyright (C) 2004-2019 J.F.Dockes
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the
+ *   Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "autoconfig.h"
+
 #include "utf8fn.h"
 #include "rclconfig.h"
 #include "transcode.h"
@@ -9,6 +28,7 @@ string compute_utf8fn(const RclConfig *config, const string& ifn, bool simple)
 {
     string lfn(simple ? path_getsimple(ifn) : ifn);
 #ifdef _WIN32
+    PRETEND_USE(config);
     // On windows file names are read as UTF16 wchar_t and converted to UTF-8
     // while scanning directories
     return lfn;