[Technically this is a Libtool question, but I'll answer here anyway] On 2014-01-08 07:58, Harlan Stenn wrote: > I need configure to tell me if I can use --no-as-needed or --as-needed. > > Right now we have been only using these flags if we're using GCC, and > I've got a case (solaris) where gcc is calling the native loader, not > gld. > > The docs for LT_PATH_LD say that macro tries to find the path to the > linker used by $CC, and whether it is the GNU linker. But when I read > the code for LT_PATH_LD it's sure not obvious to me how I can see if > we're using a GNU linker. > > Anybody have some suggestions for me? The last thing LT_PATH_LD does is to expand _LT_PATH_LD_GNU, which runs the linker with -v and looks for "GNU" or "with BFD" in the output and assumes GNU ld if that is found. The result is stored in $with_gnu_ld (and a cache variable). If inside configure, I think it's fairly safe to just use $with_gnu_ld, that's probably not going to change anytime soon. Outside configure, evaluate something like: .../libtool --config | grep '^with_gnu_ld=' > If it matters, we're using this because we've got a situation where we > need to force linking libgcc_s, as it must be in the executable early > enough; if we drop privileges it's too late to call dlopen(). That's > not entirely accurate, but it's close enough. Cheers, Peter _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf
