--- a/debian/patches/05-reproducible-build.patch	2016-07-04 21:48:03.585810472 +0200
--- b/debian/patches/05-reproducible-build.patch	2016-07-04 21:56:13.674202084 +0200
@@ -1,5 +1,5 @@
---- irsim-9.7.87.orig/irsim/Makefile
-+++ irsim-9.7.87/irsim/Makefile
+--- irsim-9.7.93.orig/irsim/Makefile
++++ irsim-9.7.93/irsim/Makefile
 @@ -8,7 +8,7 @@ EXTRA_LIBS = ${IRSIMDIR}/analyzer/libana
  	     ${IRSIMDIR}/base/libbase.o \
  	     ${MAIN_EXTRA_LIBS}
@@ -9,3 +9,14 @@
  
  CFLAGS += -I${IRSIMDIR}/base
  LIBS += ${GR_LIBS} -lm
+--- irsim-9.7.93.orig/tcltk/Makefile
++++ irsim-9.7.93/tcltk/Makefile
+@@ -7,7 +7,7 @@ include ${IRSIMDIR}/defs.mak
+ 
+ EXTRA_LIBS = ${MAIN_EXTRA_LIBS}
+ 
+-DFLAGS += -DIRSIM_DATE="\"`date`\""
++DFLAGS += -DIRSIM_DATE="\"`dpkg-parsechangelog -l../debian/changelog --show-field Date`\""
+ LIBS += ${GR_LIBS} -lm
+ CLEANS += irsim.sh irsim.tcl irsimexec
+ SRCS += ${GR_SRCS}
--- a/irsim/Makefile	2016-07-04 21:48:03.585810472 +0200
--- b/irsim/Makefile	2016-07-04 21:57:12.000000000 +0200
@@ -8,7 +8,7 @@
 	     ${IRSIMDIR}/base/libbase.o \
 	     ${MAIN_EXTRA_LIBS}
 
-DFLAGS += -DIRSIM_DATE="\"`date`\""
+DFLAGS += -DIRSIM_DATE="\"`dpkg-parsechangelog -l../debian/changelog --show-field Date`\""
 
 CFLAGS += -I${IRSIMDIR}/base
 LIBS += ${GR_LIBS} -lm