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OPTIMIZE_CFLAGS=""
OPTIMIZE_LDFLAGS=""
# Enable -Bsymbolic
AS_IF([test "$enable_optimizations" != "no"], [
check_link_flag([-Wl,-Bsymbolic], [OPTIMIZE_LDFLAGS="$OPTIMIZE_LDFLAGS -Wl,-Bsymbolic"])
CFLAGS="$CFLAGS -O2"
])
# Enable Link-Time-Optimization
AS_IF([test "$enable_lto" = "yes"],
[AS_IF([test "$c_compiler" = "gcc"],
[AX_CHECK_COMPILE_FLAG([-flto], [OPTIMIZE_CFLAGS="$OPTIMIZE_CFLAGS -flto"])
check_link_flag([-flto], [OPTIMIZE_LDFLAGS="$OPTIMIZE_LDFLAGS -flto"])],
[AC_MSG_WARN([LTO is not yet available on your compiler.])])])
AC_SUBST(OPTIMIZE_CFLAGS)
AC_SUBST(OPTIMIZE_LDFLAGS)
# Add '-g' flag to gcc to build with debug symbols.
if test "$enable_debug_symbols" = "min"; then
CFLAGS="$CFLAGS -g1"
elif test "$enable_debug_symbols" != "no"; then
CFLAGS="$CFLAGS -g"
fi
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