[Fontconfig] How necessary is 'scandir'?

[Raimund Steger]

On 02/11/15 19:40, Michael Felt wrote:
> Yes, xlC, and I was hoping it was just a stray gcc flag.

If that's indeed the reason, you can:

(0) To confirm whether it is, replace WERROR_CFLAGS="-Werror" with 
WERROR_CFLAGS="" in configure.ac, run autoconf, configure etc.

If that works:

(1) find an equivalent flag for XL C and create a patch, just like the 
one for SunPRO [1]. If I understand the documentation right [2], this 
could be "-qmaxerr=1:w" (increase the number 1 if some 'statement not 
reached' stuff gets in your way), but it's difficult to say without an 
actual installation to test.

(2) create a patch similar to (1), but set WERROR_CFLAGS="" or disable 
the scandir check altogether when compiling with XL C. I believe before 
[3] there wasn't even a scandir check, and the change was only to 
silence warnings on NetBSD if I read the commit right. I doubt you will 
have any problem on AIX.

Actually I'm still somewhat unhappy that configure wants to acknowledge 
the POSIX version of scandir specially when only recognizing the NetBSD 
version would probably have sufficed ... would have saved us a lot of 
if's, maybe even the one for $os_win32.

But I'll shut my mouth again.

-Raimund



[1] 
http://cgit.freedesktop.org/fontconfig/commit/?id=694368667a15341ea30b37a36e9540e6b1492680
[2] 
http://www-01.ibm.com/support/knowledgecenter/SSGH2K_13.1.0/com.ibm.xlc131.aix.doc/compiler_ref/opt_maxerr.html?lang=en
[3] 
http://cgit.freedesktop.org/fontconfig/commit/?id=38ab7ab2fbd83c0c62e4b78302b5fe89da0cb79e