ci: First phase of adding MingW support

.appveyor.yml

@@ -12,4 +12,5 @@ install:
   - sh: 'ci/install.sh'
 
 build_script:
-  - sh: 'ci/build.sh'
+  - sh:  'ci/build.sh'
+  - cmd: 'ci\build.bat'

ci/build.bat

@@ -0,0 +1 @@
+C:\msys64\usr\bin\bash --login -c 'set -x; cd "${APPVEYOR_BUILD_FOLDER}"; ci/build.sh'

ci/build.sh

@@ -1,5 +1,20 @@
 #!/bin/sh
 
+case "$(uname)" in
+    MSYS*|MINGW*)
+	pacman --noconfirm --remove mingw-w64-x86_64-gcc-ada
+	pacman --noconfirm --remove mingw-w64-x86_64-gcc-fortran
+	pacman --noconfirm --remove mingw-w64-x86_64-gcc-libgfortran
+	pacman --noconfirm --remove mingw-w64-x86_64-gcc-objc
+	pacman --noconfirm --sync --refresh
+	pacman --noconfirm --sync --needed diffutils
+	pacman --noconfirm --sync --needed make
+	pacman --noconfirm --sync --needed mingw-w64-x86_64-gcc
+	pacman --noconfirm --sync --needed mingw-w64-x86_64-cunit
+	export PATH="/mingw64/bin:$PATH"
+	;;
+esac
+
 ./autogen.sh &&
     ./configure --enable-manpages --enable-test-tool --enable-tests \
 		--enable-examples &&

configure.ac

@@ -19,10 +19,15 @@ case $host in
     AC_CHECK_LIB([socket], [main], , [AC_MSG_ERROR([Can not find required library])])
     AC_CHECK_LIB([nsl],    [main], , [AC_MSG_ERROR([Can not find required library])])
     ;;
+  *mingw*)
+    target_os_is_win32=true
+    ;;
   *)
     ;;
 esac
 
+AM_CONDITIONAL([TARGET_OS_IS_WIN32], [test x$target_os_is_win32 = xtrue])
+
 AC_ARG_ENABLE([werror], [AS_HELP_STRING([--disable-werror],
               [Disables building with -Werror by default])])
 

lib/Makefile.am

@@ -8,6 +8,10 @@ libiscsipriv_la_SOURCES = \
 	scsi-lowlevel.c socket.c sync.c task_mgmt.c \
 	logging.c
 
+if TARGET_OS_IS_WIN32
+libiscsipriv_la_SOURCES += ../win32/win32_compat.c
+endif
+
 if !HAVE_LIBGCRYPT
 libiscsipriv_la_SOURCES += md5.c
 endif