On Thu, Jun 8, 2017 at 12:19 AM, Eric Blake wrote: > On 06/07/2017 05:11 PM, Lloyd Wood via cygwin wrote: >> Aha! just slightly later in config.log: >> >> configure:17957: checking for ino_t >> configure:17957: gcc -c -g -O2 conftest.c >&5 >> configure:17957: $? = 0 >> configure:17957: gcc -c -g -O2 conftest.c >&5 >> conftest.c: In function 'main': >> conftest.c:94:20: error: expected expression before ')' token >> if (sizeof ((ino_t))) >> ^ > > This _particular_ failure is expected (you aren't showing enough of the > config.log output). Remember, to determine if something is a type vs. > an expression, autoconf performs TWO compilation tests, and relies on > the fact that sizeof(expr) and sizeof((expr)) both compile, but > sizeof(type) compiles while sizeof((type)) must fail. The back-to-back > compilation is necessary to ensure that something being probed for is a > type name rather than an arbitray expression. > > So just because _some_ tests fail (as expected) does not mean that this > particular failure is where configure is messing up.
Yes, I saw this in my successful config.log (and was a bit puzzled). Lloyd, you need to look further down in config.log, because "checking for sizeof(ino_t)" - the one that failed for you - is after "checking for ino_t". Csaba -- GCS a+ e++ d- C++ ULS$ L+$ !E- W++ P+++$ w++$ tv+ b++ DI D++ 5++ The Tao of math: The numbers you can count are not the real numbers. Life is complex, with real and imaginary parts. "Ok, it boots. Which means it must be bug-free and perfect. " -- Linus Torvalds "People disagree with me. I just ignore them." -- Linus Torvalds -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
