error: conflicting types for ‘ws_yy_parse’ - CentOs7

[mahesh Lavanam]

Hi,

Trying to install Kannel 1.4.5 on CentOS 7, seeing below error while
running make

gcc -std=gnu99 -D_REENTRANT=1 -I. -Igw -g -O2 -D_XOPEN_SOURCE=600
-D_BSD_SOURCE -D_DEFAULT_SOURCE -D_LARGE_FILES= -I/usr/include/libxml2 -o
wmlscript/wslexer.o -c wmlscript/wslexer.c
In file included from wmlscript/wslexer.c:72:0:
y.tab.h:264:5: error: conflicting types for ‘ws_yy_parse’
In file included from wmlscript/wslexer.c:70:0:
wmlscript/wsint.h:296:5: note: previous declaration of ‘ws_yy_parse’ was
here
 int ws_yy_parse(void *context);
     ^
make: *** [wmlscript/wslexer.o] Error 1

Tried with bison 3.0.4 & 2.5, in both seeing above error, even with 1.4.4
too.

Can anyone please help me with this.

Thanks,
Mahesh