On Thu, Feb 26, 2015 at 01:10:39AM -0500, Mike Frysinger wrote: > a few signed warnings have crept in: > socketutils.c: In function 'receive_responses': > socketutils.c:145:110: warning: comparison between signed and unsigned > integer expressions [-Wsign-compare] > netlink_inet_diag.c: In function 'check_responses': > netlink_inet_diag.c:67:112: warning: comparison between signed and unsigned > integer expressions [-Wsign-compare] > netlink_unix_diag.c: In function 'check_responses': > netlink_unix_diag.c:75:112: warning: comparison between signed and unsigned > integer expressions [-Wsign-compare]
The whole -Wsign-compare thing is a regression introduced by commit v4.9-8-g3ed5d02 :) On some platforms, any use of NLMSG_OK macro results to these -Wsign-compare warnings. The way how NLMSG_OK is defined in <linux/netlink.h> leaves no room for a fix. > guess this should be declared differently ? maybe as a noinst_PROGRAM ? > Makefile.am:411: warning: variable 'ioctlsort_LDFLAGS' is defined but no > program or > Makefile.am:411: library has 'ioctlsort' as canonical name (possible typo) > although the build settings look a bit dicey ... it's mixing target compiler > & > settings and the build compiler. this leads to all cross-compiles failing: > ./ioctlsort0 > ioctlent0.h > /bin/sh: ./ioctlsort0: cannot execute binary file: Exec format error After the big change in ioctl parser (v4.9-222-gdf7aa2b) ioctlsort is used at build time. The trick is that ioctlsort is now being compiled with target headers, so all cross-compiling configurations probably need some local ioctlsort_* adjustments. See also https://sourceforge.net/p/strace/mailman/message/33285976/. -- ldv
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