source/lib/iconv.m4

   1 dnl # ICONV/CHARSET subsystem
   2
   3 ICONV_LOCATION=standard
   4 LOOK_DIRS="/usr /usr/local /sw"
   5 AC_ARG_WITH(libiconv,
   6 [  --with-libiconv=BASEDIR Use libiconv in BASEDIR/lib and BASEDIR/include (default=auto) ],
   7 [
   8   if test "$withval" = "no" ; then
   9     AC_MSG_ERROR(I won't take no for an answer)
  10   else
  11      if test "$withval" != "yes" ; then
  12         LOOK_DIRS="$withval $LOOK_DIRS"
  13      fi
  14   fi
  15 ])
  16
  17 ICONV_FOUND="no"
  18 for i in $LOOK_DIRS ; do
  19     save_LIBS=$LIBS
  20     save_LDFLAGS=$LDFLAGS
  21     save_CPPFLAGS=$CPPFLAGS
  22     CPPFLAGS="-I$i/include"
  23     LDFLAGS="-L$i/lib"
  24     LIBS=
  25     export LDFLAGS LIBS CPPFLAGS
  26 dnl Try to find iconv(3)
  27     jm_ICONV($i)
  28
  29     CPPFLAGS=$save_CPPFLAGS
  30     if test -n "$ICONV_FOUND" ; then
  31         LDFLAGS=$save_LDFLAGS
  32         LIB_ADD_DIR(LDFLAGS, "$i/lib")
  33         CFLAGS_ADD_DIR(CPPFLAGS, "$i/include")
  34         LIBS="$save_LIBS $LIBS"
  35         ICONV_LOCATION=$i
  36         export LDFLAGS LIBS CPPFLAGS
  37         break
  38     else
  39         LDFLAGS=$save_LDFLAGS
  40         LIBS=$save_LIBS
  41         export LDFLAGS LIBS CPPFLAGS
  42     fi
  43 done
  44
  45 ############
  46 # check for iconv in libc
  47 AC_CACHE_CHECK([for working iconv],samba_cv_HAVE_NATIVE_ICONV,[
  48 AC_TRY_RUN([
  49 #include <iconv.h>
  50 main() {
  51        iconv_t cd = iconv_open("ASCII", "UCS-2LE");
  52        if (cd == 0 || cd == (iconv_t)-1) return -1;
  53        return 0;
  54 }
  55 ],
  56 samba_cv_HAVE_NATIVE_ICONV=yes,samba_cv_HAVE_NATIVE_ICONV=no,samba_cv_HAVE_NATIVE_ICONV=cross)])
  57 if test x"$samba_cv_HAVE_NATIVE_ICONV" = x"yes"; then
  58     AC_DEFINE(HAVE_NATIVE_ICONV,1,[Whether to use native iconv])
  59 fi
  60
  61 if test x"$ICONV_FOUND" = x"no" -o x"$samba_cv_HAVE_NATIVE_ICONV" != x"yes" ; then
  62     AC_MSG_WARN([Sufficient support for iconv function was not found.
  63     Install libiconv from http://freshmeat.net/projects/libiconv/ for better charset compatibility!])
  64 fi
  65
  66 SMB_SUBSYSTEM(CHARSET,lib/iconv.o,lib/charcnv.o)