More 'const'

diff --git a/src/main/evaluate.c b/src/main/evaluate.c
index 28eb143..972e400 100644 (file)
--- a/src/main/evaluate.c
+++ b/src/main/evaluate.c
@@ -112,9 +112,10 @@ static const char *expand_string(char *buffer, size_t sizeof_buffer,
 }
 
 #ifdef HAVE_REGEX_H
-static FR_TOKEN getregex(char **ptr, char *buffer, size_t buflen, int *pcflags)
+static FR_TOKEN getregex(const char **ptr, char *buffer, size_t buflen,
+                        int *pcflags)
 {
-       char *p = *ptr;
+       const char *p = *ptr;
        char *q = buffer;
 
        if (*p != '/') return T_OP_INVALID;