Hi, I'm finally getting around to integrating coreutils version 8.24 into Solaris 12 (and being built with the Studio C compiler rather than gcc) and noticed that the test for whether we had stdbuf was failing.
I've fixed it with the following patch. Looks like gcc just doesn't trip over this, but hopefully the suggested change "just works" for both compilers. Thanks. $ cat configure.ac.patch The configure test for "whether this is system supports stdbuf" was failing because the warning: "conftest.c", line 731: warning: statement not reached was being turned into an error with the Studio C compiler (ignored with the GNU C compiler). We want to adjust the -errwarn option so that it ignores E_STATEMENT_NOT_REACHED errors. --- configure.ac.orig 2015-12-03 09:46:42.381111611 -0800 +++ configure.ac 2015-12-03 10:27:48.938546667 -0800 @@ -459,7 +459,7 @@ ac_save_LDFLAGS=$LDFLAGS # Detect warnings about ignored "constructor" attributes. gl_WARN_ADD([-Werror], [CFLAGS]) -gl_WARN_ADD([-errwarn], [CFLAGS]) +gl_WARN_ADD([-errwarn=no%E_STATEMENT_NOT_REACHED], [CFLAGS]) # Put this message here, after gl_WARN_ADD's chatter. AC_MSG_CHECKING([whether this system supports stdbuf]) CFLAGS="-fPIC $CFLAGS"
