For past reference see: http://lists.gnu.org/archive/html/bug-gnulib/2006-06/msg00119.html
While building coreutils on HP-UX 11.11 using the native hp c compiler I noticed that gnulib's gl_IGNORE_UNUSED_LIBRARIES causes --as-needed to be inadvertently used where it is not a valid option there. It does not actually break the coreutils build and is why the warnings it produced went undetected. The compile output produces this on HP-UX using the native compiler. cc -g --as-needed -o cp cp.o copy.o cp-hash.o ../lib/libcoreutils.a ../lib/libcoreutils.a -lsec cc: warning 422: Unknown option "-" ignored. cc: warning 422: Unknown option "a" ignored. cc: warning 422: Unknown option "-" ignored. cc: warning 422: Unknown option "-needed" ignored. cc: warning 401: -s and -g are mutually exclusive, -s ignored. Here are the relevant (I think) snippets from config.log: configure:5625: cc -o conftest -g -Wl,--as-needed conftest.c >&5 /usr/ccs/bin/ld: Unrecognized argument: --as-needed /usr/ccs/bin/ld: Usage: /usr/ccs/bin/ld [options] [flags] files configure:5631: $? = 1 configure: failed program was: ... configure:5625: cc -o conftest -g -Wl,-z,ignore conftest.c >&5 /usr/ccs/bin/ld: Can't open ignore /usr/ccs/bin/ld: No such file or directory configure:5631: $? = 1 configure: failed program was: ... configure:5625: cc -o conftest -g --as-needed conftest.c >&5 cc: warning 422: Unknown option "-" ignored. cc: warning 422: Unknown option "a" ignored. cc: warning 422: Unknown option "-" ignored. cc: warning 422: Unknown option "-needed" ignored. cc: warning 401: -s and -g are mutually exclusive, -s ignored. configure:5631: $? = 0 configure:5638: test -z "$ac_c_werror_flag" || test ! -s conftest.err configure:5641: $? = 0 configure:5648: test -s conftest configure:5651: $? = 0 configure:5667: result: --as-needed Should the stderr be captured and if non-zero in size also denote a failure? Thanks Bob
