+fi
+
+dnl **********************************************************************
+dnl Check for linker switch for versioned symbols
+dnl **********************************************************************
+
+versioned_symbols_flavour=
+AC_MSG_CHECKING([whether versioned symbols are wanted])
+AC_ARG_ENABLE(versioned-symbols,
+AC_HELP_STRING([--enable-versioned-symbols], [Enable versioned symbols in shared library])
+AC_HELP_STRING([--disable-versioned-symbols], [Disable versioned symbols in shared library]),
+[ case "$enableval" in
+ yes) AC_MSG_RESULT(yes)
+ AC_MSG_CHECKING([if libraries can be versioned])
+ GLD=`$LD --help < /dev/null 2>/dev/null | grep version-script`
+ if test -z "$GLD"; then
+ AC_MSG_RESULT(no)
+ AC_MSG_WARN([You need an ld version supporting the --version-script option])
+ else
+ AC_MSG_RESULT(yes)
+ if test "x$CURL_WITH_MULTI_SSL" = "x1"; then
+ versioned_symbols_flavour="MULTISSL_"
+ elif test "x$OPENSSL_ENABLED" = "x1"; then
+ versioned_symbols_flavour="OPENSSL_"
+ elif test "x$GNUTLS_ENABLED" = "x1"; then
+ versioned_symbols_flavour="GNUTLS_"
+ elif test "x$NSS_ENABLED" = "x1"; then
+ versioned_symbols_flavour="NSS_"
+ elif test "x$POLARSSL_ENABLED" = "x1"; then
+ versioned_symbols_flavour="POLARSSL_"
+ elif test "x$CYASSL_ENABLED" = "x1"; then
+ versioned_symbols_flavour="CYASSL_"
+ elif test "x$AXTLS_ENABLED" = "x1"; then
+ versioned_symbols_flavour="AXTLS_"
+ elif test "x$WINSSL_ENABLED" = "x1"; then
+ versioned_symbols_flavour="WINSSL_"
+ elif test "x$DARWINSSL_ENABLED" = "x1"; then
+ versioned_symbols_flavour="DARWINSSL_"
+ else
+ versioned_symbols_flavour=""
+ fi
+ versioned_symbols="yes"
+ fi
+ ;;
+
+ *) AC_MSG_RESULT(no)
+ ;;
+ esac
+], [
+AC_MSG_RESULT(no)
+]
+)
+
+AC_SUBST([CURL_LT_SHLIB_VERSIONED_FLAVOUR],
+ ["$versioned_symbols_flavour"])
+AM_CONDITIONAL([CURL_LT_SHLIB_USE_VERSIONED_SYMBOLS],
+ [test "x$versioned_symbols" = 'xyes'])
+
+dnl -------------------------------------------------
+dnl check winidn option before other IDN libraries
+dnl -------------------------------------------------
+
+AC_MSG_CHECKING([whether to enable Windows native IDN (Windows native builds only)])
+OPT_WINIDN="default"
+AC_ARG_WITH(winidn,
+AC_HELP_STRING([--with-winidn=PATH],[enable Windows native IDN])
+AC_HELP_STRING([--without-winidn], [disable Windows native IDN]),
+ OPT_WINIDN=$withval)
+case "$OPT_WINIDN" in
+ no|default)
+ dnl --without-winidn option used or configure option not specified
+ want_winidn="no"
+ AC_MSG_RESULT([no])
+ ;;
+ yes)
+ dnl --with-winidn option used without path
+ want_winidn="yes"
+ want_winidn_path="default"
+ AC_MSG_RESULT([yes])
+ ;;
+ *)
+ dnl --with-winidn option used with path
+ want_winidn="yes"
+ want_winidn_path="$withval"
+ AC_MSG_RESULT([yes ($withval)])
+ ;;
+esac
+
+if test "$want_winidn" = "yes"; then
+ dnl winidn library support has been requested
+ clean_CPPFLAGS="$CPPFLAGS"
+ clean_LDFLAGS="$LDFLAGS"
+ clean_LIBS="$LIBS"
+ WINIDN_LIBS="-lnormaliz"
+ WINIDN_CPPFLAGS="-DWINVER=0x0600"
+ #
+ if test "$want_winidn_path" != "default"; then
+ dnl path has been specified
+ dnl pkg-config not available or provides no info
+ WINIDN_LDFLAGS="-L$want_winidn_path/lib$libsuff"
+ WINIDN_CPPFLAGS="-I$want_winidn_path/include"
+ WINIDN_DIR="$want_winidn_path/lib$libsuff"
+ fi
+ #
+ CPPFLAGS="$CPPFLAGS $WINIDN_CPPFLAGS"
+ LDFLAGS="$LDFLAGS $WINIDN_LDFLAGS"
+ LIBS="$WINIDN_LIBS $LIBS"
+ #
+ AC_MSG_CHECKING([if IdnToUnicode can be linked])
+ AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[
+ #include <windows.h>
+ ]],[[
+ IdnToUnicode(0, NULL, 0, NULL, 0);
+ ]])
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_links_winidn="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_links_winidn="no"
+ ])
+ #
+ if test "$tst_links_winidn" = "yes"; then
+ AC_DEFINE(USE_WIN32_IDN, 1, [Define to 1 if you have the `normaliz' (WinIDN) library (-lnormaliz).])
+ AC_DEFINE(WANT_IDN_PROTOTYPES, 1, [Define to 1 to provide own prototypes.])
+ AC_SUBST([IDN_ENABLED], [1])
+ curl_idn_msg="enabled (Windows-native)"
+ else
+ AC_MSG_WARN([Cannot find libraries for IDN support: IDN disabled])
+ CPPFLAGS="$clean_CPPFLAGS"
+ LDFLAGS="$clean_LDFLAGS"
+ LIBS="$clean_LIBS"
+ fi
+fi
+
+dnl **********************************************************************
+dnl Check for the presence of IDN libraries and headers
+dnl **********************************************************************
+
+AC_MSG_CHECKING([whether to build with libidn2])
+OPT_IDN="default"
+AC_ARG_WITH(libidn2,
+AC_HELP_STRING([--with-libidn2=PATH],[Enable libidn2 usage])
+AC_HELP_STRING([--without-libidn2],[Disable libidn2 usage]),
+ [OPT_IDN=$withval])
+case "$OPT_IDN" in
+ no)
+ dnl --without-libidn2 option used
+ want_idn="no"
+ AC_MSG_RESULT([no])
+ ;;
+ default)
+ dnl configure option not specified
+ want_idn="yes"
+ want_idn_path="default"
+ AC_MSG_RESULT([(assumed) yes])
+ ;;
+ yes)
+ dnl --with-libidn2 option used without path
+ want_idn="yes"
+ want_idn_path="default"
+ AC_MSG_RESULT([yes])
+ ;;
+ *)
+ dnl --with-libidn2 option used with path
+ want_idn="yes"
+ want_idn_path="$withval"
+ AC_MSG_RESULT([yes ($withval)])
+ ;;
+esac
+
+if test "$want_idn" = "yes"; then
+ dnl idn library support has been requested
+ clean_CPPFLAGS="$CPPFLAGS"
+ clean_LDFLAGS="$LDFLAGS"
+ clean_LIBS="$LIBS"
+ PKGCONFIG="no"
+ #
+ if test "$want_idn_path" != "default"; then
+ dnl path has been specified
+ IDN_PCDIR="$want_idn_path/lib$libsuff/pkgconfig"
+ CURL_CHECK_PKGCONFIG(libidn2, [$IDN_PCDIR])
+ if test "$PKGCONFIG" != "no"; then
+ IDN_LIBS=`CURL_EXPORT_PCDIR([$IDN_PCDIR]) dnl
+ $PKGCONFIG --libs-only-l libidn2 2>/dev/null`
+ IDN_LDFLAGS=`CURL_EXPORT_PCDIR([$IDN_PCDIR]) dnl
+ $PKGCONFIG --libs-only-L libidn2 2>/dev/null`
+ IDN_CPPFLAGS=`CURL_EXPORT_PCDIR([$IDN_PCDIR]) dnl
+ $PKGCONFIG --cflags-only-I libidn2 2>/dev/null`
+ IDN_DIR=`echo $IDN_LDFLAGS | $SED -e 's/-L//'`
+ else
+ dnl pkg-config not available or provides no info
+ IDN_LIBS="-lidn2"
+ IDN_LDFLAGS="-L$want_idn_path/lib$libsuff"
+ IDN_CPPFLAGS="-I$want_idn_path/include"
+ IDN_DIR="$want_idn_path/lib$libsuff"
+ fi
+ else
+ dnl path not specified
+ CURL_CHECK_PKGCONFIG(libidn2)
+ if test "$PKGCONFIG" != "no"; then
+ IDN_LIBS=`$PKGCONFIG --libs-only-l libidn2 2>/dev/null`
+ IDN_LDFLAGS=`$PKGCONFIG --libs-only-L libidn2 2>/dev/null`
+ IDN_CPPFLAGS=`$PKGCONFIG --cflags-only-I libidn2 2>/dev/null`
+ IDN_DIR=`echo $IDN_LDFLAGS | $SED -e 's/-L//'`
+ else
+ dnl pkg-config not available or provides no info
+ IDN_LIBS="-lidn2"
+ fi
+ fi
+ #
+ if test "$PKGCONFIG" != "no"; then
+ AC_MSG_NOTICE([pkg-config: IDN_LIBS: "$IDN_LIBS"])
+ AC_MSG_NOTICE([pkg-config: IDN_LDFLAGS: "$IDN_LDFLAGS"])
+ AC_MSG_NOTICE([pkg-config: IDN_CPPFLAGS: "$IDN_CPPFLAGS"])
+ AC_MSG_NOTICE([pkg-config: IDN_DIR: "$IDN_DIR"])
+ else
+ AC_MSG_NOTICE([IDN_LIBS: "$IDN_LIBS"])
+ AC_MSG_NOTICE([IDN_LDFLAGS: "$IDN_LDFLAGS"])
+ AC_MSG_NOTICE([IDN_CPPFLAGS: "$IDN_CPPFLAGS"])
+ AC_MSG_NOTICE([IDN_DIR: "$IDN_DIR"])
+ fi
+ #
+ CPPFLAGS="$CPPFLAGS $IDN_CPPFLAGS"
+ LDFLAGS="$LDFLAGS $IDN_LDFLAGS"
+ LIBS="$IDN_LIBS $LIBS"
+ #
+ AC_MSG_CHECKING([if idn2_lookup_ul can be linked])
+ AC_LINK_IFELSE([
+ AC_LANG_FUNC_LINK_TRY([idn2_lookup_ul])
+ ],[
+ AC_MSG_RESULT([yes])
+ tst_links_libidn="yes"
+ ],[
+ AC_MSG_RESULT([no])
+ tst_links_libidn="no"
+ ])
+ #
+ AC_CHECK_HEADERS( idn2.h )
+
+ if test "$tst_links_libidn" = "yes"; then
+ AC_DEFINE(HAVE_LIBIDN2, 1, [Define to 1 if you have the `idn2' library (-lidn2).])
+ dnl different versions of libidn have different setups of these: