Hi,
first, libev is lovely, I really appreciate it.
Now, my problem:
take the example code from the manpage and compile it using:
gcc -DHAVE_CONFIG_H -I. -I.. -I/opt/libev/include/ -I../include -I ..
-Wall -g -g -O2 -MT ev.o -MD -MP -MF ev.Tpo -c -o ev.o `test -f 'ev.c'
|| echo './'`ev.c
this is line is created by autotools, so more or less a default.
One might have to adjust the /opt/libev pathes.
I get:
ev.c: In Funktion »main«:
ev.c:45: Warnung: Dereferenzierung eines Type-Pun-Zeigers verletzt
strict-aliasing-Regeln
line 45 is
ev_timer_init (&timeout_watcher, timeout_cb, 5.5, 0.);
as I added stdio.h to get rid of the puts warning.
gcc -Wall -o ev ev.c
does not give this warning.
my build system:
gcc -v
Es werden eingebaute Spezifikationen verwendet.
Ziel: x86_64-linux-gnu
Konfiguriert mit: ../src/configure -v
--enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--with-gxx-include-dir=/usr/include/c++/4.2 --program-suffix=-4.2
--enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc
--enable-mpfr --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread-Modell: posix
gcc-Version 4.2.3 (Ubuntu 4.2.3-2ubuntu7)
uname -a
Linux hostname 2.6.24-19-generic #1 SMP Wed Aug 20 17:53:40 UTC 2008
x86_64 GNU/Linux
Problem is, I tend to use -Wall -Werror, as the compiler is my friend
and it usually pays of taking care if he complains, therefore I can't
compile code with libev timers.
Of course I could use -fno-strict-aliasing, but that does not fix the
problems root cause.
For now I'll have to disable -Werror, but I'd prefer a real working
solution.
MfG
Markus
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