gentoo-overlay/app-emulation/libguestfs/files/1.20/0003_add_doc_more_option.patch

diff --git a/configure.ac b/configure.ac
--- a/configure.ac
+++ b/configure.ac
@@ -521,7 +521,7 @@
     dnl Check for functions not available in earlier versions of Augeas.
     AC_CHECK_FUNCS([aug_load aug_defvar aug_defnode])
     LIBS="$old_LIBS"
-],[AC_MSG_WARN([augeas not found, some core features will be disabled])])
+],[AC_MSG_ERROR([augeas not found, some core features will be disabled])])
 
 dnl Check for libselinux (optional).
 AC_CHECK_HEADERS([selinux/selinux.h])
@@ -594,11 +594,19 @@
 
 dnl Check for optional xmllint.
 AC_CHECK_PROG([XMLLINT],[xmllint],[xmllint],[no])
+AS_IF([test "xXMLLINT" = "xno"], [AC_MSG_ERROR([xmllint not installed])],[])
+
 AM_CONDITIONAL([HAVE_XMLLINT],[test "x$XMLLINT" != "xno"])
 
 dnl po4a for translating man pages and POD files (optional).
 AC_CHECK_PROG([PO4A],[po4a],[po4a],[no])
-AM_CONDITIONAL([HAVE_PO4A], [test "x$PO4A" != "xno"])
+
+AC_ARG_ENABLE([doc],
+       AS_HELP_STRING([--enable-doc], [Enable generation translating man pages and doc]),
+       [enable_doc=no],
+       [enable_doc=yes])
+AS_IF([test "xPO4A" = "xno"], [AC_MSG_WARN([po4a not installed])],[])  
+AM_CONDITIONAL([HAVE_PO4A],[test "x$PO4A" != "xno" && test "x$enable_doc" != "xno"])
 
 dnl Check for db_dump, db_load (optional).
 AC_CHECK_PROGS([DB_DUMP],