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BUG/MINOR: lua: can't load external libraries 

Libraries requires the export of embedded Lua symbols. If a library
is loaded by HAProxy or by an Lua program, an error like the following
error raises:

   [ALERT] 085/135722 (7224) : parsing [test.cfg:8] : lua runtime error: error loading module 'test' from file './test.so':
        ./test.so: undefined symbol: lua_createtable

This patch modify the Makefile, and allow exports of the Lua symbols.

This patch must be backported in version 1.6
This commit is contained in:
Thierry Fournier 2016-03-26 13:19:21 +01:00 committed by Willy Tarreau
parent 69ad4b9977
commit 85dc1d3995
1 changed files with 1 additions and 1 deletions
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Makefile
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@ -597,7 +597,7 @@ check_lua_lib = $(shell echo "int main(){}" | $(CC) -o /dev/null -x c - $(2) -l$
BUILD_OPTIONS += $(call ignore_implicit,USE_LUA)
OPTIONS_CFLAGS += -DUSE_LUA $(if $(LUA_INC),-I$(LUA_INC))
LUA_LD_FLAGS := $(if $(LUA_LIB),-L$(LUA_LIB))
LUA_LD_FLAGS := -Wl,--export-dynamic $(if $(LUA_LIB),-L$(LUA_LIB))
ifeq ($(LUA_LIB_NAME),)
# Try to automatically detect the Lua library
LUA_LIB_NAME := $(firstword $(foreach lib,lua5.3 lua53 lua,$(call check_lua_lib,$(lib),$(LUA_LD_FLAGS))))