test7-win32dll
This is similar to test6, but Psyon helped me port the main.cc code to
use LoadLibrary/GetProcAddress and make a Makefile that actually works.
I found that even for a trivial example I cannot make a working executable
with main in a DLL. Try making libmain a static library. But then would
every module link in all the code, or still use an implementation lib?
Standard build:
/bin/sh.exe ../libtool g++ -mno-cygwin -g -c main.cc
/bin/sh.exe ../libtool g++ -mno-cygwin -no-undefined -g -o libmain.la main.lo -rpath `pwd`/lib
mkdir -p lib bin
/bin/sh.exe ../libtool cp libmain.la `pwd`/lib
/bin/sh.exe ../libtool g++ -mno-cygwin -no-undefined -g -o uselib libmain.la
/bin/sh.exe ../libtool g++ -mno-cygwin -g -c module1.cc
/bin/sh.exe ../libtool g++ -mno-cygwin -no-undefined -g -o libmodule1.la module1.lo -rpath `pwd`/lib libmain.la
mkdir -p lib bin
/bin/sh.exe ../libtool cp libmodule1.la `pwd`/lib
/bin/sh.exe ../libtool g++ -mno-cygwin -g -c module2.cc
/bin/sh.exe ../libtool g++ -mno-cygwin -no-undefined -g -o libmodule2.la module2.lo -rpath `pwd`/lib libmain.la
mkdir -p lib bin
/bin/sh.exe ../libtool cp libmodule2.la `pwd`/lib
Try with libmain as a static lib.
/bin/sh.exe ../libtool g++ -ggdb -mno-cygwin -g -c main.cc
/bin/sh.exe ../libtool g++ -ggdb -mno-cygwin -no-undefined -g -o libmain.la main.lo
mkdir -p lib bin
/bin/sh.exe ../libtool cp libmain.la `pwd`/lib
/bin/sh.exe ../libtool g++ -ggdb -mno-cygwin -no-undefined -g -o uselib libmain.la
/bin/sh.exe ../libtool g++ -ggdb -mno-cygwin -g -c module1.cc
/bin/sh.exe ../libtool g++ -ggdb -mno-cygwin -no-undefined -g -o libmodule1.la module1.lo -rpath `pwd`/lib libmain.la
mkdir -p lib bin
/bin/sh.exe ../libtool cp libmodule1.la `pwd`/lib
/bin/sh.exe ../libtool g++ -ggdb -mno-cygwin -g -c module2.cc
/bin/sh.exe ../libtool g++ -ggdb -mno-cygwin -no-undefined -g -o libmodule2.la module2.lo -rpath `pwd`/lib libmain.la
mkdir -p lib bin
/bin/sh.exe ../libtool cp libmodule2.la `pwd`/lib
How to make an import library for cygmodule2-0.dll
dlltool --as=as --dllname cygmodule2-0.dll --def .libs/cygmodule2-0.dll-def --output-lib .libs/libimp-cygmodule2-0.a
dll-def file is:
EXPORTS
module_init @ 1 ;
n_operations @ 2 DATA ;
operate__Fii @ 3 ;
