Fix warnings in Mac build1.5alpha2

Minor but annoying warnings from the mac build fixed.
 * Incorrect duplication of header causing moc build rule duplication
in generated makefile
 * you aren’t supposed to use char as an array type, probably because
it can be a signed type in some compilers. Negative array indexes are
problematic.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/util.cpp b/src/util.cpp
index 7b41efd2a..717891a19 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -1430,7 +1430,7 @@ long hex2long(const char* hexString)
 
     while (*hexString && ret >= 0)
     {
-        ret = (ret << 4) | hextable[*hexString++];
+        ret = (ret << 4) | hextable[(uint8_t)*hexString++];
     }
 
     return ret;