Add meaningful error message for ext/zip

diff --git a/ext/zip/config.m4 b/ext/zip/config.m4
index 41b6ca83417f7e19738a4c831b002d96a1b6bca1..c1c8cbc18e5d0fbcab4874c928759fa404be861f 100644 (file)
--- a/ext/zip/config.m4
+++ b/ext/zip/config.m4
@@ -49,7 +49,7 @@ if test "$PHP_ZIP" != "no"; then
 
     if test -z "$LIBZIP_LIBDIR"; then
       AC_MSG_RESULT(not found)
-      AC_MSG_ERROR(Please reinstall the libzip distribution)
+      AC_MSG_ERROR(Please reinstall the libzip. Header zip.h not found.)
     fi
 
     dnl Could not think of a simple way to check libzip for overwrite support