Hello and big thanks at Silvio and Evgeny! It worked and I can compile the library dynamically and link it! At first I was bewildered by MSYS2, especially because I'm using Archlinux (pacman) since years. My beloved package-manager was ported to Windows *envy*. I'm now able to compile my program and link it dynamically.
One last problem remains: I'm trying to compile libmicrohttpd statically or at least the final executable, but this fails. My LDFLAG="-static" seems to be ignored. Therefore I compile the final program with "-static", which required me to care much about the libraries: > $ g++ -static -static-libstdc++ -o foo foo.cpp -Llib -lmicrohttpd -Iinclude > -Wall -Wpedantic -std=gnu++11 -lws2_32 -lgnutls -lidn -lgcrypt -lffi > -lgpg-error -lhogweed -lgmp -lintl -liconv -lnettle -ltasn1 -lwinpthread -lz These gives me still a lot of "undefinfed reference errors", especially about "system.o", "system-keys-win.o" and "pkcs11.o". So I tried to add "-lp11-kit" behind "-lgnutls" but it doesn't change anything. And "system.o" and "system-keys-win.o" doesn't give me a hint, so stuff from Windows or internals of GNUTLS? See here: http://pastebin.com/TYNQ289E Do you think I should try to hand over the required libraries to my users also? I'm perfectly fine with this, but it sounds a little bit clumsy. Thanks Peter For future readers, here my steps for WIN_X86_64: 1. Install http://repo.msys2.org/distrib/x86_64/msys2-x86_64-20160205.exe 2. Launch msys2_shell.cmd 3.1 Optional if behind proxy: $ export http_proxy=... $ export https_proxy=... 3.2 $ pacman -S mingw-w64-x86_64-toolchain make wget tar # general stuff $ pacman -S mingw-w64-x86_64-curl mingw-w64-x86_64-libgcrypt mingw-w64-x86_64-gnutls # for libmicrohttpd 4. Close the terminal 5. Launch msys2_shell.cmd -mingw64 # important! 6. $ wget -c http://ftpmirror.gnu.org/libmicrohttpd/libmicrohttpd-0.9.50.tar.gz $ tar -xzvf libmicrohttpd-0.9.50.tar.gz libmicrohttpd-0.9.50/ $ mkdir build && cd build $ LDFLAG="-static" CFLAGS='-Os -s' ../libmicrohttpd-0.9.50/configure or $ CFLAGS='-Os -s' ../libmicrohttpd-0.9.50/configure $ make You will find the resulting library now here "build\src\microhttpd\.libs\". Example for compiling a final program and linking: 1. Launch msys2_shell.cmd -mingw64 # important! 2. $ g++ -o foo.exe foo.cpp -Llib -lmicrohttpd -Iinclude -Wall -Wpedantic -std=gnu++11 -lws2_32 -lgnutls -lgcrypt @LRN: I' sorry, but libmicrohttpd seems not to be included in the packages
