On 03/17/2015 11:49 AM, Ben Pfaff wrote: > On Tue, Mar 17, 2015 at 11:31:17AM -0400, Russell Bryant wrote: >> On 03/17/2015 11:11 AM, Ben Pfaff wrote: >> With just -Werror, I get: >> >> libtool: compile: clang -DHAVE_CONFIG_H -I. -I ./include -I ./include >> -I ./lib -I ./lib -Wstrict-prototypes -Wall -Wextra -Wno-sign-compare >> -Wpointer-arith -Wformat-security -Wno-format-zero-length -Wswitch-enum >> -Wunused-parameter -Wbad-function-cast -Wcast-align -Wstrict-prototypes >> -Wold-style-definition -Wmissing-prototypes -Wmissing-field-initializers >> -Wthread-safety -fno-strict-aliasing -Werror -MT lib/aes128.lo -MD -MP >> -MF lib/.deps/aes128.Tpo -c lib/aes128.c -o lib/aes128.o >> clang: error: argument unused during compilation: '-I .' >> clang: error: argument unused during compilation: '-I ./include' >> clang: error: argument unused during compilation: '-I ./include' >> clang: error: argument unused during compilation: '-I ./lib' >> clang: error: argument unused during compilation: '-I ./lib' >> Makefile:3454: recipe for target 'lib/aes128.lo' failed > > It's bizarre to report -I options as "argument[s] unused during > compilation" so I typed this into Google and found > https://github.com/perl11/potion/issues/41, which says (in part): > > It's because ccache is not yet fully clang-compatible, and it > produces this warning, ... > > Any chance that ccache is enabled and interfering somehow with the clang > build? Maybe it should be disabled for clang. >
Good find! Yes, that's it. $ which clang /usr/lib64/ccache/clang Removing the ccache symlink for clang makes it so I get the same result as you. -- Russell Bryant _______________________________________________ dev mailing list [email protected] http://openvswitch.org/mailman/listinfo/dev
