- Fix windows link of ssl with crypt32.

git-svn-id: file:///svn/unbound/trunk@3787 be551aaa-1e26-0410-a405-d3ace91eadb9

configure

@@ -17398,6 +17398,47 @@ fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 SSLLIB="-lssl"
+
+# check if -lcrypt32 is needed because CAPIENG needs that. (on windows)
+BAKLIBS="$LIBS"
+LIBS="-lssl $LIBS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if libssl needs -lcrypt32" >&5
+$as_echo_n "checking if libssl needs -lcrypt32... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char OPENSSL_config ();
+int
+main ()
+{
+return OPENSSL_config ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	LIBS="$BAKLIBS"
+
+else
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	LIBS="$BAKLIBS"
+	SSLLIB="$SSLLIB -lcrypt32"
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for LibreSSL" >&5
 $as_echo_n "checking for LibreSSL... " >&6; }
 if grep VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "LibreSSL" >/dev/null; then

configure.ac

@@ -647,6 +647,20 @@ if test $USE_NSS = "no" -a $USE_NETTLE = "no"; then
 ACX_WITH_SSL
 ACX_LIB_SSL
 SSLLIB="-lssl"
+
+# check if -lcrypt32 is needed because CAPIENG needs that. (on windows)
+BAKLIBS="$LIBS"
+LIBS="-lssl $LIBS"
+AC_MSG_CHECKING([if libssl needs -lcrypt32])
+AC_TRY_LINK_FUNC([OPENSSL_config], [
+	AC_MSG_RESULT([no])
+	LIBS="$BAKLIBS"
+], [
+	AC_MSG_RESULT([yes])
+	LIBS="$BAKLIBS"
+	SSLLIB="$SSLLIB -lcrypt32"
+])
+
 AC_MSG_CHECKING([for LibreSSL])
 if grep VERSION_TEXT $ssldir/include/openssl/opensslv.h | grep "LibreSSL" >/dev/null; then
 	AC_MSG_RESULT([yes])

doc/Changelog

@@ -2,6 +2,7 @@
 	- Fix 775: unbound-host and unbound-anchor crash on windows, ignore
 	  null delete for wsaevent.
 	- Fix spelling in freebind option man page text.
+	- Fix windows link of ssl with crypt32.
 
 13 June 2016: Ralph
 	- Use QTYPE=A for QNAME minimisation.