Make boot.sh give an error if pkg-config is not installed.

diff --git a/configure.ac b/configure.ac
index d22a71b..eb80441 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -85,6 +85,8 @@ AC_ARG_ENABLE(
   [ssl=false])
 
 if test "$ssl" = true; then
+dnl Make sure that pkg-config is installed.
+m4_pattern_forbid([PKG_CHECK_MODULES])
 PKG_CHECK_MODULES([SSL], [libssl], 
   [HAVE_OPENSSL=yes],
   [HAVE_OPENSSL=no