-dnl --------------
-dnl CHECK FOR NDBM
-dnl --------------
-dnl Checks for ndbm
-AC_CHECK_FUNC(dbm_open, ,
- AC_CHECK_LIB(ndbm, dbm_open, ,
- AC_CHECK_LIB(dbm, dbm_open, ,
- AC_CHECK_LIB(db1, dbm_open, ,
- AC_CHECK_LIB(gdbm, dbm_open)))))
+dnl ---------------
+dnl CHECK FOR ICONV
+dnl ---------------
+
+dnl Find iconv. It may be in libiconv and may be iconv() or libiconv()
+if test "x$ac_cv_header_iconv_h" = "xyes"; then
+ AC_CHECK_FUNC(iconv, ac_found_iconv=yes, ac_found_iconv=no)
+ if test "x$ac_found_iconv" = "xno"; then
+ AC_CHECK_LIB(iconv, iconv, ac_found_iconv=yes)
+ if test "x$ac_found_iconv" = "xno"; then
+ AC_CHECK_LIB(iconv, libiconv, ac_found_iconv=yes)
+ fi
+ if test "x$ac_found_iconv" != "xno"; then
+ LIBS="-liconv $LIBS"
+ fi
+ else
+ dnl Handle case where there is a native iconv but iconv.h is from libiconv
+ AC_CHECK_DECL(_libiconv_version,
+ [ AC_CHECK_LIB(iconv, libiconv, LIBS="-liconv $LIBS") ],,
+ [ #include <iconv.h> ])
+ fi
+fi
+if test "x$ac_found_iconv" = xyes; then
+ AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
+fi
+
+dnl Check if iconv uses const in prototype declaration
+if test "x$ac_found_iconv" = "xyes"; then
+ AC_CACHE_CHECK(for iconv declaration, ac_cv_iconv_const,
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
+ #include <iconv.h>]],
+ [[#ifdef __cplusplus
+ "C"
+ #endif
+ #if defined(__STDC__) || defined(__cplusplus)
+ size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
+ #else
+ size_t iconv();
+ #endif]])],
+ [ac_cv_iconv_const=],
+ [ac_cv_iconv_const=const])])
+ AC_DEFINE_UNQUOTED([ICONV_CONST], $ac_cv_iconv_const,
+ [Define as const if the declaration of iconv() needs const.])
+fi