merge r79773 from trunk: make sure to remove linux segfault workaround var
--- branches/release_2_0/base/src/pextlib1.0/Pextlib.c 2011-06-28 10:11:18 UTC (rev 79857)
+++ branches/release_2_0/base/src/pextlib1.0/Pextlib.c 2011-06-28 10:12:42 UTC (rev 79858)
@@ -399,6 +399,7 @@
#ifndef __APPLE__
/* Crashes on Linux without this. */
setenv("MACPORTS_DUMMY", "", 0);
+ unsetenv("MACPORTS_DUMMY");
#endif
} else {
(void) unsetenv(name);