build: Conditionally build json importer.

* Makefile.am (MODULES): Add guix/scripts/import/json.scm when HAVE_GUILE_JSON.

diff --git a/Makefile.am b/Makefile.am
index fd6f972..41fb9ba 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -180,7 +180,6 @@ MODULES =                                   \
   guix/scripts/import/gnu.scm                  \
   guix/scripts/import/nix.scm                  \
   guix/scripts/import/hackage.scm              \
-  guix/scripts/import/json.scm                 \
   guix/scripts/import/elpa.scm                 \
   guix/scripts/import/texlive.scm              \
   guix/scripts/environment.scm                 \
@@ -208,6 +207,7 @@ MODULES +=                                  \
   guix/import/stackage.scm                     \
   guix/scripts/import/crate.scm                        \
   guix/scripts/import/gem.scm                  \
+  guix/scripts/import/json.scm                 \
   guix/scripts/import/pypi.scm                 \
   guix/scripts/import/stackage.scm