Revert "removed sapi/isapi"

This reverts commit 4fedc42.

Author: cmb69

sapi/isapi/CREDITS

@@ -0,0 +1,2 @@
+ISAPI
+Andi Gutmans, Zeev Suraski

sapi/isapi/config.m4

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+dnl
+dnl $Id$
+dnl
+
+PHP_ARG_WITH(isapi, for Zeus ISAPI support,
+[  --with-isapi[=DIR]        Build PHP as an ISAPI module for use with Zeus], no, no)
+
+if test "$PHP_ISAPI" != "no"; then
+  if test "$PHP_ISAPI" = "yes"; then
+    ZEUSPATH=/usr/local/zeus # the default
+  else
+    ZEUSPATH=$PHP_ISAPI
+  fi
+  test -f "$ZEUSPATH/web/include/httpext.h" || AC_MSG_ERROR(Unable to find httpext.h in $ZEUSPATH/web/include)
+  PHP_BUILD_THREAD_SAFE
+  AC_DEFINE(WITH_ZEUS, 1, [ ])
+  PHP_ADD_INCLUDE($ZEUSPATH/web/include)
+  PHP_SELECT_SAPI(isapi, shared, php7isapi.c)
+  INSTALL_IT="\$(SHELL) \$(srcdir)/install-sh -m 0755 $SAPI_SHARED \$(INSTALL_ROOT)$ZEUSPATH/web/bin/"
+fi
+
+dnl ## Local Variables:
+dnl ## tab-width: 4
+dnl ## End:

sapi/isapi/config.w32

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+// vim:ft=javascript
+// $Id$
+
+ARG_ENABLE('isapi', 'Build ISAPI version of PHP', 'no');
+
+if (PHP_ISAPI == "yes") {
+	if (PHP_ZTS == "no") {
+		WARNING("ISAPI module requires an --enable-zts build of PHP");
+	} else {
+		SAPI('isapi', 'php7isapi.c', 'php' + PHP_VERSION + 'isapi.dll', '/D PHP7ISAPI_EXPORTS');
+		ADD_FLAG('LDFLAGS_ISAPI', '/DEF:sapi\\isapi\\php7isapi.def');
+	}
+}

sapi/isapi/php.sym

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+GetFilterVersion
+HttpFilterProc
+GetExtensionVersion
+HttpExtensionProc
+ZSLMain