Fix for Alpine Linux gettext problem with libattr.

gistfile1.txt

thethreefuries.alx attr> make
[...]
tools/attr.o: In function `usage':
/home/alx/g/attr/tools/attr.c:48: undefined reference to `libintl_gettext'
tools/attr.o: In function `main':
/home/alx/g/attr/tools/attr.c:73: undefined reference to `libintl_bindtextdomain'
/home/alx/g/attr/tools/attr.c:74: undefined reference to `libintl_textdomain'
/home/alx/g/attr/tools/attr.c:140: undefined reference to `libintl_gettext'
/home/alx/g/attr/tools/attr.c:248: undefined reference to `libintl_gettext'
/home/alx/g/attr/tools/attr.c:184: undefined reference to `libintl_gettext'
/home/alx/g/attr/tools/attr.c:95: undefined reference to `libintl_gettext'
/home/alx/g/attr/tools/attr.c:202: undefined reference to `libintl_gettext'
tools/attr.o:/home/alx/g/attr/tools/attr.c:207: more undefined references to `libintl_gettext' follow
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:918: attr] Error 1
make[1]: Leaving directory '/home/alx/g/attr'
make: *** [Makefile:1212: all-recursive] Error 1


thethreefuries.alx attr> locate intl | grep lib | grep .so            
/usr/lib/libintl.so
/usr/lib/libintl.so.8
/usr/lib/libintl.so.8.1.5

# (If you don't have the above install one of the `gettext-*` packages)

thethreefuries.alx attr> CFLAGS=-intl ./configure
[...]
checking where the gettext function comes from... external libintl
checking how to link with libintl... /usr/lib/libintl.so
[...]
thethreefuries.alx attr> make
Making all in po
make[1]: Entering directory '/home/alx/g/attr/po'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/alx/g/attr/po'
make[1]: Entering directory '/home/alx/g/attr'
  CCLD     attr
  CC       tools/getfattr.o
  CCLD     getfattr
  CC       tools/setfattr.o
  CCLD     setfattr
make[1]: Leaving directory '/home/alx/g/attr'

# Now it should work