[Buildroot] [PATCH] pv: fix build failures when building under a path containing 'yes'

[Peter Korsgaard <peter@korsgaard.com>]

>>>>> "Peter" == Peter Korsgaard <peter@korsgaard.com> writes:

 > Depending on the configuration, the cpp output may contain the string 'yes'
 > in a comment if built under a path containing 'yes', confusing the _AIX
 > test:

 > ${CROSS}-cpp conftest.h
 > \# 1 "conftest.h"
 > \# 1 "<built-in>"
 > \# 1 "<command-line>"
 > \# 31 "<command-line>"
 > \# 1 "/home/peko/source/buildroot/output-yes/host/x86_64-buildroot-linux-gnu/sysroot/usr/include/stdc-predef.h"
 > \# 32 "<command-line>" 2
 > \# 1 "conftest.txt"

 > If misdetected, the configure script adds -lc128 to LIBS, causing the
 > AC_CHECKS_FUNCS check for stat64 to fail, which in turn causes compilation
 > errors about redefinition of symbols:

 > In file included from ./src/include/pv-internal.h:9:0,
 >                  from src/pv/file.c:5:
 > ./src/include/config.h:76:18: error: redefinition of 'struct stat'
 >   #  define stat64 stat
 >                    ^
 > Fix it by only matching on 'yes' on a line by itself.

 > As pv doesn't cleanly autoreconf (it doesn't use automake and configure.in
 > is located in subdir), instead directly patch configure.

 > Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

Committed to 2018.02.x and 2018.05.x, thanks.

-- 
Bye, Peter Korsgaard