--- ibmtpm832/src/makefile~	2017-01-30 16:31:06.903692292 +0100
+++ ibmtpm832/src/makefile	2017-01-30 16:31:17.391841670 +0100
@@ -41,16 +41,16 @@
 
 CC = /usr/bin/gcc
 
-CCFLAGS = -Wall  			\
+CCFLAGS += -fno-strict-aliasing -fno-aggressive-loop-optimizations -Wno-unused-result \
 	-Wmissing-declarations -Wmissing-prototypes -Wnested-externs \
-	-Werror -Wsign-compare \
+	-Werror -Wsign-compare -Wno-unused-value -Wno-aggressive-loop-optimizations \
-	 -c -ggdb -O0 			\
+	 -c -ggdb -O 			\
 	-DTPM_POSIX			\
 	-D_POSIX_			\
 	-I../utils			\
 	-I.
 
-LNFLAGS = -ggdb 			\
+LNFLAGS += -ggdb 			\
 	-DTPM_POSIX			\
 	-lcrypto			\
 	-lpthread			\