Adding the Cygwin/mingw documentation from Jean-Seb (see e-mail dated Thu 7/9/2009...

[freeglut] / src / freeglut_init.c

diff --git a/src/freeglut_init.c b/src/freeglut_init.c
index 54297cf..b419025 100644 (file)
--- a/src/freeglut_init.c
+++ b/src/freeglut_init.c
@@ -25,6 +25,7 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#define FREEGLUT_BUILDING_LIB
 #include <GL/freeglut.h>
 #include "freeglut_internal.h"
 
@@ -677,7 +678,8 @@ void FGAPIENTRY glutInit( int* pargc, char** argv )
     char* geometry = NULL;
     int i, j, argc = *pargc;
 
-#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 ) // will return true for VC8 (VC2005) and higher
+    /* will return true for VC8 (VC2005) and higher */
+#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 )
     size_t sLen;
     errno_t err;
 #endif
@@ -701,7 +703,8 @@ void FGAPIENTRY glutInit( int* pargc, char** argv )
     /* check if GLUT_FPS env var is set */
 #ifndef _WIN32_WCE
     {
-#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 ) // will return true for VC8 (VC2005) and higher
+    /* will return true for VC8 (VC2005) and higher */
+#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 )
         char* fps = NULL;
         err = _dupenv_s( &fps, &sLen, "GLUT_FPS" );
         if (err)
@@ -719,12 +722,14 @@ void FGAPIENTRY glutInit( int* pargc, char** argv )
             else
                 fgState.FPSInterval = interval;
         }
-#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 ) // will return true for VC8 (VC2005) and higher
+    /* will return true for VC8 (VC2005) and higher */
+#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 )
         free ( fps );  fps = NULL;  /* dupenv_s allocates a string that we must free */
 #endif
     }
 
-#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 ) // will return true for VC8 (VC2005) and higher
+    /* will return true for VC8 (VC2005) and higher */
+#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 )
     err = _dupenv_s( &displayName, &sLen, "DISPLAY" );
     if (err)
         fgError("Error getting DISPLAY environment variable");
@@ -815,7 +820,8 @@ void FGAPIENTRY glutInit( int* pargc, char** argv )
      * variable for opening the X display (see code above):
      */
     fghInitialize( displayName );
-#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 ) // will return true for VC8 (VC2005) and higher
+    /* will return true for VC8 (VC2005) and higher */
+#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 )
     free ( displayName );  displayName = NULL;  /* dupenv_s allocates a string that we must free */
 #endif
 
@@ -848,6 +854,16 @@ void FGAPIENTRY glutInit( int* pargc, char** argv )
     }
 }
 
+#ifdef TARGET_HOST_MS_WINDOWS
+void (__cdecl *__glutExitFunc)( int return_value ) = NULL;
+
+void FGAPIENTRY __glutInitWithExit( int *pargc, char **argv, void (__cdecl *exit_function)(int) )
+{
+  __glutExitFunc = exit_function;
+  glutInit(pargc, argv);
+}
+#endif
+
 /*
  * Undoes all the "glutInit" stuff
  */
@@ -916,7 +932,8 @@ void FGAPIENTRY glutInitDisplayString( const char* displayMode )
      * delimited by blanks or tabs.
      */
     char *token ;
-#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 ) // will return true for VC8 (VC2005) and higher
+    /* will return true for VC8 (VC2005) and higher */
+#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 )
     char *next_token = NULL;
 #endif
     size_t len = strlen ( displayMode );
@@ -924,7 +941,8 @@ void FGAPIENTRY glutInitDisplayString( const char* displayMode )
     memcpy ( buffer, displayMode, len );
     buffer[len] = '\0';
 
-#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 ) // will return true for VC8 (VC2005) and higher
+    /* will return true for VC8 (VC2005) and higher */
+#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 )
     token = strtok_s ( buffer, " \t", &next_token );
 #else
     token = strtok ( buffer, " \t" );
@@ -1105,7 +1123,8 @@ void FGAPIENTRY glutInitDisplayString( const char* displayMode )
             break ;
         }
 
-#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 ) // will return true for VC8 (VC2005) and higher
+    /* will return true for VC8 (VC2005) and higher */
+#if TARGET_HOST_MS_WINDOWS && ( _MSC_VER >= 1400 )
         token = strtok_s ( NULL, " \t", &next_token );
 #else
         token = strtok ( NULL, " \t" );