4 files changed, 13 insertions, 2 deletions
diff --git a/src/os/unix/ngx_freebsd_config.h b/src/os/unix/ngx_freebsd_config.h
index 73deb9ccd..c187191b9 100644
--- a/src/os/unix/ngx_freebsd_config.h
+++ b/src/os/unix/ngx_freebsd_config.h
@@ -97,9 +97,11 @@ pid_t rfork_thread(int flags, void *stack, int (*func)(void *arg), void *arg);
 #endif
 
 
-extern char *malloc_options;
-
 #define NGX_HAVE_OS_SPECIFIC_INIT    1
 
 
+extern char **environ;
+extern char *malloc_options;
+
+
 #endif /* _NGX_FREEBSD_CONFIG_H_INCLUDED_ */
diff --git a/src/os/unix/ngx_linux_config.h b/src/os/unix/ngx_linux_config.h
index ac7d7a8df..74bbfb1bd 100644
--- a/src/os/unix/ngx_linux_config.h
+++ b/src/os/unix/ngx_linux_config.h
@@ -101,4 +101,7 @@ extern ssize_t sendfile(int s, int fd, int32_t *offset, size_t size);
 #define NGX_HAVE_OS_SPECIFIC_INIT    1
 
 
+extern char **environ;
+
+
 #endif /* _NGX_LINUX_CONFIG_H_INCLUDED_ */
diff --git a/src/os/unix/ngx_posix_config.h b/src/os/unix/ngx_posix_config.h
index dc4341a94..984db9670 100644
--- a/src/os/unix/ngx_posix_config.h
+++ b/src/os/unix/ngx_posix_config.h
@@ -102,4 +102,7 @@
 #endif
 
 
+extern char **environ;
+
+
 #endif /* _NGX_POSIX_CONFIG_H_INCLUDED_ */
diff --git a/src/os/unix/ngx_solaris_config.h b/src/os/unix/ngx_solaris_config.h
index a668b95e1..ba1d351c7 100644
--- a/src/os/unix/ngx_solaris_config.h
+++ b/src/os/unix/ngx_solaris_config.h
@@ -88,4 +88,7 @@
 #define NGX_HAVE_OS_SPECIFIC_INIT    1
 
 
+extern char **environ;
+
+
 #endif /* _NGX_SOLARIS_CONFIG_H_INCLUDED_ */