Updated libconfig to version 1.5

- Based on https://github.com/hyperrealm/libconfig/releases/tag/v1.5
  f9f23d7a95608936ea7d839731dbd56f1667b7ed
- Improvements that come with this libconfig version:
  * Don't fclose() a null pointer.
  * check if file being opened is a directory
  * added config_set_options(), config_get_options(), setOptions(),
    getOptions().
  * renamed config_setting_lookup_from() to config_setting_lookup() and
    documented it
  * floating point precision loss patch
  * scanner code cleanup
  * parser code cleanup
  * bugfix; capture root filename
- Parser generated with Bison 2.7
- Scanner generated with flex 2.6
- This includes the windows-compatibility commit
  909b06c07e30e456cc63f58d31b0e2f3aad4cc43 from upstream (although not
  part of version 1.5)

Signed-off-by: Haru <haru@dotalux.com>

3 files changed, 33 insertions, 45 deletions

diff --git a/3rdparty/libconfig/extra/gen/clangwarnings.patch b/3rdparty/libconfig/extra/gen/clangwarnings.patch
index 4240f84d2..c3b45ef33 100644
--- a/3rdparty/libconfig/extra/gen/clangwarnings.patch
+++ b/3rdparty/libconfig/extra/gen/clangwarnings.patch
@@ -11,26 +11,5 @@ index 3595578..26444f8 100644
 -  YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp);
 +  YY_SYMBOL_PRINT (yymsg ? yymsg : "Deleting", yytype, yyvaluep, yylocationp);
  
-   switch (yytype)
-     {
-diff --git a/scanner.c b/scanner.c
-index aebd34c..c3a717f 100644
---- a/scanner.c
-+++ b/scanner.c
-@@ -1500,6 +1500,8 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
- 	else
- 		ret_val = EOB_ACT_CONTINUE_SCAN;
- 
-+#ifndef __clang_analyzer__
-+	// FIXME: Clang's static analyzer complains about leaking the result of libconfig_yyrealloc
- 	if ((yy_size_t) (yyg->yy_n_chars + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
- 		/* Extend the array by 50%, plus the number we really need. */
- 		yy_size_t new_size = yyg->yy_n_chars + number_to_move + (yyg->yy_n_chars >> 1);
-@@ -1507,6 +1509,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
- 		if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
- 			YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
- 	}
-+#endif // __clang_analyzer__
- 
- 	yyg->yy_n_chars += number_to_move;
- 	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[yyg->yy_n_chars] = YY_END_OF_BUFFER_CHAR;
+   YYUSE (yytype);
+ }
diff --git a/3rdparty/libconfig/extra/gen/grammar.y b/3rdparty/libconfig/extra/gen/grammar.y
index 7eab74780..2e4cfa45f 100644
--- a/3rdparty/libconfig/extra/gen/grammar.y
+++ b/3rdparty/libconfig/extra/gen/grammar.y
@@ -1,8 +1,8 @@
 /* -*- mode: C -*- */
 /* ----------------------------------------------------------------------------
    libconfig - A library for processing structured configuration files
-   Copyright (C) 2013-2015  Hercules Dev Team
-   Copyright (C) 2005-2010  Mark A Lindner
+   Copyright (C) 2013-2016  Hercules Dev Team
+   Copyright (C) 2005-2014  Mark A Lindner
 
    This file is part of libconfig.
 
@@ -23,7 +23,7 @@
 */
 
 %defines
-%output="y.tab.c"
+%output "y.tab.c"
 %pure-parser
 %lex-param{void *scanner}
 %parse-param{void *scanner}
diff --git a/3rdparty/libconfig/extra/gen/scanner.l b/3rdparty/libconfig/extra/gen/scanner.l
index 6bcce8116..f717ac273 100644
--- a/3rdparty/libconfig/extra/gen/scanner.l
+++ b/3rdparty/libconfig/extra/gen/scanner.l
@@ -1,8 +1,8 @@
 /* -*- mode: C -*- */
 /* --------------------------------------------------------------------------
    libconfig - A library for processing structured configuration files
-   Copyright (C) 2013-2015  Hercules Dev Team
-   Copyright (C) 2005-2010  Mark A Lindner
+   Copyright (C) 2013-2016  Hercules Dev Team
+   Copyright (C) 2005-2014  Mark A Lindner
 
    This file is part of libconfig.
 
@@ -23,33 +23,30 @@
 */
 
 %option nounistd
+%option never-interactive
 %option reentrant
 %option noyywrap
 %option yylineno
 %option nounput
 %option bison-bridge
-%option never-interactive
 %option header-file="scanner.h"
 %option outfile="lex.yy.c"
 %option extra-type="struct scan_context *"
 
-%top{
-#include "scanctx.h"
-}
-
 %{
+
 #ifdef _MSC_VER
 #pragma warning (disable: 4996)
-/* disable MSVC warning "signed/unsigned mismatch" associated with code generated by flex versions such as 2.5.35. */
-#pragma warning (disable:4018)
 #endif
 
 #include <stdlib.h>
 #include <ctype.h>
 #include <string.h>
+#include <limits.h>
+#include "parsectx.h"
+#include "scanctx.h"
 #include "grammar.h"
 #include "wincompat.h"
-#include "parsectx.h"
 
 #define YY_NO_INPUT // Suppress generation of useless input() function
 
@@ -87,13 +84,6 @@ static unsigned long long fromhex(const char *s)
 #endif /* __MINGW32__ */
 }
 
-static int fromihex(const char *s) {
-  unsigned long l = strtoul(s, NULL, 16);
-  if (l > INT32_MAX)
-    l &= INT32_MAX;
-  return (int)l;
-}
-
 %}
 
 true              [Tt][Rr][Uu][Ee]
@@ -183,9 +173,28 @@ include_open      ^[ \t]*@include[ \t]+\"
 {true}            { yylval->ival = 1; return(TOK_BOOLEAN); }
 {false}           { yylval->ival = 0; return(TOK_BOOLEAN); }
 {float}           { yylval->fval = atof(yytext); return(TOK_FLOAT); }
-{integer}         { yylval->ival = atoi(yytext); return(TOK_INTEGER); }
+{integer}         {
+                    long long llval;
+                    llval = atoll(yytext);
+                    if((llval < INT_MIN) || (llval > INT_MAX))
+                    {
+	              yylval->llval = llval;
+	              return(TOK_INTEGER64);
+                    }
+                    else
+                    {
+	              yylval->ival = (int)llval;
+	              return(TOK_INTEGER);
+                    }
+                  }
 {integer64}       { yylval->llval = atoll(yytext); return(TOK_INTEGER64); }
-{hex}             { yylval->ival = fromihex(yytext); return(TOK_HEX); }
+{hex}             {
+                    unsigned long ulval = strtoul(yytext, NULL, 16);
+                    if (ulval > INT32_MAX)
+                      ulval &= INT32_MAX;
+                    yylval->ival = (int)ulval;
+                    return(TOK_HEX);
+                  }
 {hex64}           { yylval->llval = fromhex(yytext); return(TOK_HEX64); }
 {name}            { yylval->sval = yytext; return(TOK_NAME); }
 \[                { return(TOK_ARRAY_START); }