Replace incorrect uses of wxString::empty() with the intended clear().

[wxWidgets.git] / src / common / utilscmn.cpp

diff --git a/src/common/utilscmn.cpp b/src/common/utilscmn.cpp
index 07a7eebfba96108e8ff615a2636c6f025f112293..749d1ff6cb8d4bb3f25f1bea0a2eafb3342349c9 100644 (file)
--- a/src/common/utilscmn.cpp
+++ b/src/common/utilscmn.cpp
@@ -76,24 +76,20 @@
     #include "wx/statusbr.h"
 #endif // wxUSE_GUI
 
-#ifndef __WXPALMOS5__
 #ifndef __WXWINCE__
     #include <time.h>
 #else
     #include "wx/msw/wince/time.h"
 #endif
-#endif // ! __WXPALMOS5__
 
 #ifdef __WXMAC__
     #include "wx/osx/private.h"
 #endif
 
-#ifndef __WXPALMOS5__
 #if !defined(__MWERKS__) && !defined(__WXWINCE__)
     #include <sys/types.h>
     #include <sys/stat.h>
 #endif
-#endif // ! __WXPALMOS5__
 
 #if defined(__WXMSW__)
     #include "wx/msw/private.h"
@@ -394,10 +390,6 @@ bool wxPlatform::Is(int platform)
     if (platform == wxOS_UNIX)
         return true;
 #endif
-#ifdef __WXMGL__
-    if (platform == wxPORT_MGL)
-        return true;
-#endif
 #ifdef __OS2__
     if (platform == wxOS_OS2)
         return true;
@@ -580,10 +572,21 @@ bool wxGetEnvMap(wxEnvVariableHashMap *map)
 #else // non-MSVC non-Mac
     // Not sure if other compilers have _tenviron so use the (more standard)
     // ANSI version only for them.
-#ifdef __BSD__
-    // POSIX, but not in an include file
+
+    // Both POSIX and Single UNIX Specification say that this variable must
+    // exist but not that it must be declared anywhere and, indeed, it's not
+    // declared in several common systems (some BSDs, Solaris with native CC)
+    // so we (re)declare it ourselves to deal with these cases. However we do
+    // not do this under MSW where there can be DLL-related complications, i.e.
+    // the variable might be DLL-imported or not. Luckily we don't have to
+    // worry about this as all MSW compilers do seem to define it in their
+    // standard headers anyhow so we can just rely on already having the
+    // correct declaration. And if this turns out to be wrong, we can always
+    // add a configure test checking whether it is declared later.
+#ifndef __WXMSW__
     extern char **environ;
-#endif
+#endif // !__WXMSW__
+
     char **env = environ;
 #endif
 
@@ -812,8 +815,8 @@ typedef struct
       smaller partition.  This *guarantees* no more than log (n)
       stack size is needed (actually O(1) in this case)!  */
 
-void wxQsort(void *const pbase, size_t total_elems,
-                             size_t size, CMPFUNCDATA cmp, const void* user_data)
+void wxQsort(void* pbase, size_t total_elems,
+             size_t size, wxSortCallback cmp, const void* user_data)
 {
   register char *base_ptr = (char *) pbase;
   const size_t max_thresh = MAX_THRESH * size;