[VAR] Add localvars nesting

This patch adds localvars nesting infrastructure so we can reuse
the localvars mechanism for command evaluation.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/var.h b/src/var.h
index e4e2cff..32b0dde 100644
--- a/src/var.h
+++ b/src/var.h
@@ -139,6 +139,7 @@ char **listvars(int, int, char ***);
 int showvars(const char *, int, int);
 int exportcmd(int, char **);
 int localcmd(int, char **);
+void pushlocalvars(void);
 void poplocalvars(void);
 int unsetcmd(int, char **);
 int unsetvar(const char *);