Configure silently assumes strcmpi exists on target platform when buidling with --enable-case-insensitive-file-system

[Zygmunt Krynicki]

Hello.

I'm trying to compile GNU make 3.81 on Darwin/OS X 10.4.10

I'm passing --enable-case-insensitive-file-system to ./configure  
because, by default, the hgfs is case insensitive.
The following error is encountered during linking:

gcc  -g -O2   -o make  ar.o arscan.o commands.o default.o dir.o  
expand.o file.o function.o getopt.o getopt1.o implicit.o job.o main.o  
misc.o read.o remake.o remote-stub.o rule.o signame.o strcache.o  
variable.o version.o vpath.o hash.o glob/libglob.a
/usr/bin/ld: Undefined symbols:
_strcmpi
collect2: ld returned 1 exit status
make[2]: *** [make] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

I think that configure should check if strcmpi is indeed available  
and provide a replacement version if not.

Best regards
Zygmunt Krynicki