Source
--- Makefile.orig 2018-03-17 10:44:18.000000000 -0400
+++ Makefile 2018-03-17 10:44:25.000000000 -0400
# CPPFLAGS += -DPNG_MIPS_MSA_OPT=0
# Enable INTEL SSE support
-CPPFLAGS += -DPNGCRUSH_USE_INTEL_SSE -DPNG_INTEL_SSE
+# CPPFLAGS += -DPNGCRUSH_USE_INTEL_SSE -DPNG_INTEL_SSE
# Disable INTEL SSE support
-# CPPFLAGS += -DPNG_INTEL_SSE_OPT=0
+CPPFLAGS += -DPNG_INTEL_SSE_OPT=0
# Enable POWERPC_VSX support
CPPFLAGS += -DPNGCRUSH_USE_POWERPC_VSX