X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/14d63513822a9a91697508ecd37f95bac8af662e..497209d3b7b6e0d80734eabcd5a24b732f13ac42:/src/os2/utils.cpp

diff --git a/src/os2/utils.cpp b/src/os2/utils.cpp
index e3bc440f27..14d2c6b3e1 100644
--- a/src/os2/utils.cpp
+++ b/src/os2/utils.cpp
@@ -241,6 +241,14 @@ bool wxGetEnv(const wxString& var, wxString *value)
 static bool wxDoSetEnv(const wxString& variable, const char *value)
 {
 #if defined(HAVE_SETENV)
+    if ( !value ) 
+    { 
+#ifdef HAVE_UNSETENV 
+        return unsetenv(variable.mb_str()) == 0; 
+#else 
+        value = _T(""); // mustn't pass NULL to setenv() 
+#endif 
+    } 
     return setenv(variable.mb_str(), value, 1 /* overwrite */) == 0;
 #elif defined(HAVE_PUTENV)
     wxString s = variable;