Re: [PATCH] [cygwin] Minor sysroot fixups.

[Charles Wilson]

On 8/28/2010 6:38 PM, Vincent Torri wrote:

>> case ${with_sysroot} in #(
>>  yes)
>>    if test "$GCC" = yes; then
>> -     lt_sysroot=`$GCC --print-sysroot 2>/dev/null`
>> +     lt_sysroot=`$CC --print-sysroot 2>/dev/null`
> 
> what is the interest of testing $GCC if you use $CC ?

$GCC != "gcc".  It is "yes" if $CC contains some variant of gcc (like
i686-pc-cygwin-gcc); "no" otherwise.

So, IF the user specified --with-sysroot, but did not explicitly
indicate where that sysroot is located (e.g. --with-sysroot=/some/path),
THEN

IF $CC is some variant of gcc (e.g. "$GCC" = "yes"), THEN

invoke gcc (via $CC) and ask it where the compiled-in sysroot is located.

You don't want to ask the executable "yes" where its sysroot is.

--
Chuck