Re: fio-f1480f9: AIX 6.1 build KO against gcc function overlap

[Jens Axboe <axboe@kernel.dk>]

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On 12/30/2015 09:38 AM, Jens Axboe wrote:
> so that logic does look correct. Maybe the configure check for the error
> return of lex -o isn't working. Do you have CONFIG_LEX_USE_O in your
> config-host.mak, if you run configure --enable-lex?

If the latter is the case, then the attached patch should hopefully 
work. That'll force NOT using -o for AIX always, if lex is enabled.

-- 
Jens Axboe


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diff --git a/configure b/configure
index e92e96b879b5..0dea5d8b0b68 100755
--- a/configure
+++ b/configure
@@ -247,6 +247,8 @@ AIX)
   # Unless explicitly enabled, turn off lex.
   if test -z "$disable_lex" ; then
     disable_lex="yes"
+  else
+    force_no_lex_o="yes"
   fi
   ;;
 Darwin)
@@ -1505,6 +1507,9 @@ fi
 
 # Check if lex fails using -o
 if test "$arith" = "yes" ; then
+if test "$force_no_lex_o" = "yes" ; then
+  lex_use_o="no"
+else
 $LEX -o lex.yy.c exp/expression-parser.l 2> /dev/null
 if test "$?" = "0" ; then
   lex_use_o="yes"