[PATCH 1/5] Makeconf: add -fno-strict-aliasing to CFLAGS

[Justus Winter]

If gcc is used with optimizations -O2, -O3, or -Os, it will enable
optimizations that assume that pointers of different type do not
alias, i.e. point to the same address. However, we use this a lot,
e.g. in code using libports.

Add -fno-strict-aliasing to CFLAGS to disable optimizations based on
the strict aliasing rule.

* Makeconf: Add -fno-strict-aliasing to CFLAGS.
---
 Makeconf |    1 +
 1 file changed, 1 insertion(+)

diff --git a/Makeconf b/Makeconf
index 5cf995d..cb13335 100644
--- a/Makeconf
+++ b/Makeconf
@@ -80,6 +80,7 @@ CPPFLAGS += $(INCLUDES) \
             -D_GNU_SOURCE -D_IO_MTSAFE_IO -D_FILE_OFFSET_BITS=64 \
            $($*-CPPFLAGS)
 CFLAGS += -std=gnu99 $(gnu89-inline-CFLAGS) -Wall -g -O3 \
+           -fno-strict-aliasing \
            $($*-CFLAGS)
 
 # Include the configure-generated file of parameters.
-- 
1.7.10.4