nsis: add deps.txt file in installer

This helps track package version that were used during the
build of Windows installer. It's not ideal, but make up the
lack of package management on windows

Makefile.am

@@ -57,4 +57,10 @@ gen-ChangeLog:
 	  mv $(distdir)/cl-t $(distdir)/ChangeLog;		\
 	fi
 
+if OS_WIN32
+.PHONY: nsis
+nsis:
+	make -C $(builddir)/data virt-viewer-$(VERSION).exe
+endif
+
 -include $(top_srcdir)/git.mk

data/Makefile.am

@@ -5,4 +5,17 @@ EXTRA_DIST =					\
 	virt-viewer.nsis.in			\
 	$(NULL)
 
+if OS_WIN32
+deps.txt:
+	$(AM_V_GEN)rpm -qa | grep $(host_os) | sort | unix2dos > $@
+
+virt-viewer-$(VERSION).exe: virt-viewer.nsis deps.txt
+	$(AM_V_GEN)DESTDIR=`mktemp -d` && \
+	make -C $(top_builddir) install DESTDIR=$$DESTDIR >/dev/null && \
+	makensis -NOCD -DDESTDIR=$$DESTDIR $< >/dev/null && \
+	rm -rf $$DESTDIR
+
+CLEANFILES = deps.txt virt-viewer-$(VERSION).exe
+endif
+
 -include $(top_srcdir)/git.mk

data/virt-viewer.nsis.in

@@ -49,6 +49,9 @@ Section "VirtViewer"
   SectionIn RO
   WriteRegStr HKCU "Software\virt-viewer" "" $INSTDIR
 
+  SetOutPath "$INSTDIR"
+  File "deps.txt"
+
   SetOutPath "$INSTDIR\bin"
   File "@prefix@/bin/gst-discoverer-0.10.exe"
   File "@prefix@/bin/gst-feedback.exe"
@@ -321,6 +324,8 @@ Section "Uninstall"
   Delete /rebootok "$INSTDIR\bin\libatk-1.0-0.dll"
   RMDir "$INSTDIR\bin"
   RMDir "$INSTDIR\lib"
+
+  Delete /rebootok "$INSTDIR\deps.txt"
   RMDir "$INSTDIR"
 SectionEnd