Re: Building modules under MinGW

[Shmuel Zeigerman <shmuz@...>]

Alex Queiroz wrote:
>      I am trying to build dynamic modules under MinGW using the
> instructions at http://lua-users.org/wiki/BuildingModules. So far so
> good, but every module built is about 1MB! I thought that linking
> against lua51.dll would not copy the whole contents of that file into
> the modules.

See below the makefile for MinGW, autogenerated by Dev-C++.
It builds LuaFileSystem dll (lfs.dll).
The resulting DLL size is 28 KB.


# Project: lfs
# Makefile created by Dev-C++ 4.9.9.2

CPP  = g++.exe
CC   = gcc.exe
WINDRES = windres.exe
RES  =
OBJ  = ./lfs.o $(RES)
LINKOBJ  = ./lfs.o $(RES)
LIBS =  -L"C:/DEV-CPP/lib" --no-export-all-symbols 
/progr/lib/lua/lua_5.1/liblua51.a
INCS =  -I"C:/DEV-CPP/include"  -I"/progr/lib/lua/lua_5.1"
CXXINCS =  -I"C:/DEV-CPP/lib/gcc/mingw32/3.4.2/include" 
-I"C:/DEV-CPP/include/c++/3.4.2/backward" 
-I"C:/DEV-CPP/include/c++/3.4.2/mingw32" 
-I"C:/DEV-CPP/include/c++/3.4.2"  -I"C:/DEV-CPP/include" 
-I"/progr/lib/lua/lua_5.1"
BIN  = lfs.dll
CXXFLAGS = $(CXXINCS)
CFLAGS = $(INCS) -DLFS_LIB_API=__declspec(dllexport)
RM = rm -f

.PHONY: all all-before all-after clean clean-custom

all: all-before lfs.dll all-after


clean: clean-custom
	${RM} $(OBJ) $(BIN)

DLLWRAP=dllwrap.exe
DEFFILE=liblfs.def
STATICLIB=liblfs.a

$(BIN): $(LINKOBJ)
	$(DLLWRAP) --output-def $(DEFFILE) --implib $(STATICLIB) $(LINKOBJ) 
$(LIBS) -o $(BIN)

./lfs.o: lfs.c
	$(CC) -c lfs.c -o ./lfs.o $(CFLAGS)