Explicitly declare the environ variable

While glibc includes a declaration of `environ` within `unistd.h`, this is not always the case for other libc instances; POSIX states that `environ` "must be declared by the user if it is to be used directly"¹. This fixes a build failure on FreeBSD reported at #305 (comment) ¹ https://pubs.opengroup.org/onlinepubs/9699919799/
LubosD · Oct 19, 2022 · 6c42096 · 6c42096
1 parent ef18b59
commit 6c42096
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/call_script.cpp b/src/call_script.cpp
@@ -27,6 +27,8 @@
 #include "userintf.h"
 #include "util.h"
 
+extern char **environ;
+
 extern t_phone *phone;
 
 // Maximum length of the reason value