attempt to fix compilation on windows

retroshare-service/src/retroshare-service.pro

@@ -61,4 +61,47 @@ macx {
 	INCLUDEPATH += . $$INC_DIR
 }
 
+win32-g++ {
+	CONFIG(debug, debug|release) {
+		# show console output
+		CONFIG += console
+	} else {
+		CONFIG -= console
+	}
+
+	# Switch on extra warnings
+	QMAKE_CFLAGS += -Wextra
+	QMAKE_CXXFLAGS += -Wextra
+
+	CONFIG(debug, debug|release) {
+	} else {
+		# Tell linker to use ASLR protection
+		QMAKE_LFLAGS += -Wl,-dynamicbase
+		# Tell linker to use DEP protection
+		QMAKE_LFLAGS += -Wl,-nxcompat
+	}
+
+    # Fix linking error (ld.exe: Error: export ordinal too large) due to too
+    # many exported symbols.
+    QMAKE_LFLAGS+=-Wl,--exclude-libs,ALL
+
+	# Switch off optimization for release version
+	QMAKE_CXXFLAGS_RELEASE -= -O2
+	QMAKE_CXXFLAGS_RELEASE += -O0
+	QMAKE_CFLAGS_RELEASE -= -O2
+	QMAKE_CFLAGS_RELEASE += -O0
+
+	# Switch on optimization for debug version
+	#QMAKE_CXXFLAGS_DEBUG += -O2
+	#QMAKE_CFLAGS_DEBUG += -O2
+
+	OBJECTS_DIR = temp/obj
+
+	dLib = ws2_32 gdi32 uuid ole32 iphlpapi crypt32 winmm
+	LIBS *= $$linkDynamicLibs(dLib)
+
+	# export symbols for the plugins
+	LIBS += -Wl,--export-all-symbols,--out-implib,lib/libretroshare-gui.a
+}
+