CC serialport.lo
In file included from ../serialport.c:25:0:
../serialport.c: In function 'get_config':
../libserialport_internal.h:227:25: warning: declaration of 'ret' shadows a previous local [-Wshadow]
#define TRY(x) do { int ret = x; if (ret != SP_OK) RETURN_CODEVAL(ret); } while (0)
^
../serialport.c:1566:3: note: in expansion of macro 'TRY'
TRY(get_baudrate(port->fd, &config->baudrate));
^
../serialport.c:1543:6: warning: shadowed declaration is here [-Wshadow]
int ret = get_flow(port->fd, data);
^
Also, add -Wshadow to the list of default compiler options.
$build and $build_os refer to the machine on which the software is
built, $host and $host_os refer to the machine for which the software
is (cross-)built.
The variables $target and $target_os (despite the confusing names)
are only relevant in the context of building cross-compilers.
Since we now require MinGW-w64, we no longer have to set WINVER manually,
since MinGW-w64 defaults to WINVER=0x0502 (which corresponds to
Windows Server 2003 SP1 / Windows XP SP2 apparently, which is fine for us).
Any libs needed when building static binaries must be listed in the
'Requires.private' field of the installed pkg-config file libserialport.pc.
Currently, this is libudev (but only when building on/for Linux).
The default behaviour of PKG_CHECK_MODULES is to abort with an error
anyway, but it will also print a more usable error message and hints
for the user about how to use PKG_CONFIG_PATH and so on.