MINOR: lua: file dedicated to unsafe functions
When Lua executes functions from its API, these can throws an error.
These function must be executed in a special environment which catch
these error, otherwise a critical error (like segfault) can raise.
This patch add a c file called "hlua_fcn.c" which collect all the
Lua/c function needing safe environment for its execution.
diff --git a/Makefile b/Makefile
index 8087eb1..9acbf2b 100644
--- a/Makefile
+++ b/Makefile
@@ -610,7 +610,7 @@
ifneq ($(USE_DL),)
OPTIONS_LDFLAGS += -ldl
endif
-OPTIONS_OBJS += src/hlua.o
+OPTIONS_OBJS += src/hlua.o src/hlua_fcn.o
endif
ifneq ($(USE_DEVICEATLAS),)