CFLAGS

CFLAGS = -g -O2
CXXFLAGS = -g -O2 -fno-rtti -fno-exceptions -Wcast-align -fvisibility-inlines-hidden

最適化をオフ

export CFLAGS=-g
export CXXFLAGS=-g

CFLAGS = -g 
CXXFLAGS = -g -fno-rtti -fno-exceptions -Wcast-align -fvisibility-inlines-hidden