X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Frun-program.c;h=367dd77bc497042a89c8ae77a3adeb714a9da753;hb=c712f88b26cd7547ee984b90e18c134401335bc3;hp=c91107441c2d28d5e812067b18bcddb1fd886e6b;hpb=2bfd703aaa0a56039b2831fcbc8f11739dc158b7;p=sbcl.git

diff --git a/src/runtime/run-program.c b/src/runtime/run-program.c
index c911074..367dd77 100644
--- a/src/runtime/run-program.c
+++ b/src/runtime/run-program.c
@@ -193,7 +193,9 @@ int spawn(char *program, char *argv[], int sin, int sout, int serr,
         if (fd != channel[1]) close(fd);
 #endif
 
-    environ = envp;
+    if (envp) {
+      environ = envp;
+    }
     /* Exec the program. */
     if (search)
       execvp(program, argv);