doc: Skip .pdf generation when asciidoctor-pdf is missing

[fw/altos] / configure.ac

diff --git a/configure.ac b/configure.ac
index ee175dbe38b3c846081d1e6dea395314855a8f6a..abaec2cdb7d25df3c1240755438babf8f8cfa39f 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -386,6 +386,12 @@ if test "x$HAVE_NICKLE" = "xno"; then
        AC_MSG_ERROR([Please install nickle to build AltOs])
 fi
 
+AC_CHECK_PROG([HAVE_ASCIIDOCTOR_PDF], [asciidoctor-pdf], yes, no)
+if test "x$HAVE_ASCIIDOCTOR_PDF" = "xno"; then
+       AC_MSG_WARN([asciidoctor-pdf not found, PDF docs will not be built])
+fi
+AM_CONDITIONAL([ASCIIDOCTOR_PDF], [test x$HAVE_ASCIIDOCTOR_PDF != xno])
+
 PKG_CHECK_MODULES([JANSSON], [jansson])
 
 AC_ARG_WITH([readline],