squash! Enable DEP and ASLR

ASLR interferes with GDB's ability to set breakpoints. A similar issue
holds true when compiling with -O2 (in which case single-stepping is
messed up because GDB cannot map the code back to the original source
code properly). Therefore we simply enable ASLR only when an
optimization flag is present in the CFLAGS, using it as an indicator
that the developer does not want to debug in GDB anyway.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

config.mak.uname

@@ -546,8 +546,10 @@ else
 		prefix = /usr/
 		# Enable DEP
 		BASIC_LDFLAGS += -Wl,--nxcompat
-		# Enable ASLR
-		BASIC_LDFLAGS += -Wl,--dynamicbase
+		# Enable ASLR (unless debugging)
+		ifneq (,$(findstring -O,$(CFLAGS)))
+			BASIC_LDFLAGS += -Wl,--dynamicbase
+		endif
 		ifeq (MINGW32,$(MSYSTEM))
 			prefix = /mingw32
 			BASIC_LDFLAGS += -Wl,--pic-executable,-e,_mainCRTStartup