1 files changed, 136 insertions, 0 deletions

diff --git a/externals/getopt/getopt.h b/externals/getopt/getopt.h
new file mode 100644
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+++ b/externals/getopt/getopt.h
@@ -0,0 +1,136 @@
+/* Getopt for Microsoft C
+This code is a modification of the Free Software Foundation, Inc.
+Getopt library for parsing command line argument the purpose was
+to provide a Microsoft Visual C friendly derivative. This code
+provides functionality for both Unicode and Multibyte builds.
+
+Date: 02/03/2011 - Ludvik Jerabek - Initial Release
+Version: 1.0
+Comment: Supports getopt, getopt_long, and getopt_long_only
+and POSIXLY_CORRECT environment flag
+License: LGPL
+
+Revisions:
+
+02/03/2011 - Ludvik Jerabek - Initial Release
+02/20/2011 - Ludvik Jerabek - Fixed compiler warnings at Level 4
+07/05/2011 - Ludvik Jerabek - Added no_argument, required_argument, optional_argument defs
+08/03/2011 - Ludvik Jerabek - Fixed non-argument runtime bug which caused runtime exception
+08/09/2011 - Ludvik Jerabek - Added code to export functions for DLL and LIB
+02/15/2012 - Ludvik Jerabek - Fixed _GETOPT_THROW definition missing in implementation file
+08/01/2012 - Ludvik Jerabek - Created separate functions for char and wchar_t characters so single dll can do both unicode and ansi
+10/15/2012 - Ludvik Jerabek - Modified to match latest GNU features
+06/19/2015 - Ludvik Jerabek - Fixed maximum option limitation caused by option_a (255) and option_w (65535) structure val variable
+
+**DISCLAIMER**
+THIS MATERIAL IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
+EITHER EXPRESS OR IMPLIED, INCLUDING, BUT Not LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
+PURPOSE, OR NON-INFRINGEMENT. SOME JURISDICTIONS DO NOT ALLOW THE
+EXCLUSION OF IMPLIED WARRANTIES, SO THE ABOVE EXCLUSION MAY NOT
+APPLY TO YOU. IN NO EVENT WILL I BE LIABLE TO ANY PARTY FOR ANY
+DIRECT, INDIRECT, SPECIAL OR OTHER CONSEQUENTIAL DAMAGES FOR ANY
+USE OF THIS MATERIAL INCLUDING, WITHOUT LIMITATION, ANY LOST
+PROFITS, BUSINESS INTERRUPTION, LOSS OF PROGRAMS OR OTHER DATA ON
+YOUR INFORMATION HANDLING SYSTEM OR OTHERWISE, EVEN If WE ARE
+EXPRESSLY ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+*/
+#ifndef __GETOPT_H_
+#define __GETOPT_H_
+
+#ifdef _GETOPT_API
+#undef _GETOPT_API
+#endif
+
+#if defined(EXPORTS_GETOPT) && defined(STATIC_GETOPT)
+#error "The preprocessor definitions of EXPORTS_GETOPT and STATIC_GETOPT can only be used individually"
+#elif defined(STATIC_GETOPT)
+#pragma message("Warning static builds of getopt violate the Lesser GNU Public License")
+#define _GETOPT_API
+#elif defined(EXPORTS_GETOPT)
+#pragma message("Exporting getopt library")
+#define _GETOPT_API __declspec(dllexport)
+#else
+#pragma message("Importing getopt library")
+#define _GETOPT_API __declspec(dllimport)
+#endif
+
+// Change behavior for C\C++
+#ifdef __cplusplus
+#define _BEGIN_EXTERN_C extern "C" {
+#define _END_EXTERN_C }
+#define _GETOPT_THROW throw()
+#else
+#define _BEGIN_EXTERN_C
+#define _END_EXTERN_C
+#define _GETOPT_THROW
+#endif
+
+// Standard GNU options
+#define null_argument 0
+#define no_argument 0
+#define required_argument 1
+#define optional_argument 2
+
+// Shorter Options
+#define ARG_NULL 0
+#define ARG_NONE 0
+#define ARG_REQ 1
+#define ARG_OPT 2
+
+#include <string.h>
+#include <wchar.h>
+
+_BEGIN_EXTERN_C
+
+extern _GETOPT_API int optind;
+extern _GETOPT_API int opterr;
+extern _GETOPT_API int optopt;
+
+// Ansi
+struct option_a
+{
+    const char* name;
+    int has_arg;
+    int *flag;
+    int val;
+};
+extern _GETOPT_API char *optarg_a;
+extern _GETOPT_API int getopt_a(int argc, char *const *argv, const char *optstring) _GETOPT_THROW;
+extern _GETOPT_API int getopt_long_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW;
+extern _GETOPT_API int getopt_long_only_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW;
+
+// Unicode
+struct option_w
+{
+    const wchar_t* name;
+    int has_arg;
+    int *flag;
+    int val;
+};
+extern _GETOPT_API wchar_t *optarg_w;
+extern _GETOPT_API int getopt_w(int argc, wchar_t *const *argv, const wchar_t *optstring) _GETOPT_THROW;
+extern _GETOPT_API int getopt_long_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW;
+extern _GETOPT_API int getopt_long_only_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW;
+
+_END_EXTERN_C
+
+#undef _BEGIN_EXTERN_C
+#undef _END_EXTERN_C
+#undef _GETOPT_THROW
+#undef _GETOPT_API
+
+#ifdef _UNICODE
+#define getopt getopt_w
+#define getopt_long getopt_long_w
+#define getopt_long_only getopt_long_only_w
+#define option option_w
+#define optarg optarg_w
+#else
+#define getopt getopt_a
+#define getopt_long getopt_long_a
+#define getopt_long_only getopt_long_only_a
+#define option option_a
+#define optarg optarg_a
+#endif
+#endif  // __GETOPT_H_