how to remove the warning

[Sunil.M]

Hai,
 We are developing DECT protocol stack in linux, during the complication we are
get a warning, i would like know how i can rectify this.

warning: array `printColorStr' assumed to have one element

printColorStr variable is defined in screenio.c
unsigned char printColorStr[]  =  {"\033[1;3%c;4%cm"};

and screenio.h is using the above variable
extern unsigned char printColorStr[];
#define PrintColor(fg, bg);       printf(printColorStr, fg, bg);

screenio.h is included in lot of other *.c files, all those places this
warning is coming except in screenio.c.

recently we have ported our application to redhat 6.2, gcc version egcs-2.91.66
, previously we were using slackware, there we did not get any warning.

regards
Sunil.M