Compiling with -flto

[Dilyan Palauzov]

I have gcc490, libtool 2.4.2.444.30-da30-dirty, and libmemcached 1.0.18. I run CFLAGS = "-flto -O3" CXXCFLAGS="-flto -O3" ./configure . In turn, because of optimizations, client/.libs/libutilities.a does not contain close_stdio and clients/memcapable does not link due to missing close_stdio() .

Please disable -fvisibility=hidden from CPPflags, when creating clients/libutilities , so that close_stdio() is contained there /remains visible when linking to the programs in clients/, or ensure by other means, that passing -flto to GCC can link the clients/ programs.

Compiling with just -O3 and without -flto works fine.