Import base syntax in static feature bridges

Jaime Fournier <jaimef@linbsd.org>

a74e8e246f13b0ca8de29208cded51662fb72e60

diff --git a/jerboa-src/src/jsh/aws-static.ss b/jerboa-src/src/jsh/aws-static.ss
index 1a92c44..35f67ab 100644
--- a/jerboa-src/src/jsh/aws-static.ss
+++ b/jerboa-src/src/jsh/aws-static.ss
@@ -3,7 +3,8 @@
 
 (export aws-static-registered?)
 
-(import (jsh optional-static)
+(import (rnrs)
+        (jsh optional-static)
         (prefix (jerboa-aws cli main) %aws-cli-)
         (prefix (jerboa-aws pssm) %aws-pssm-))
 
diff --git a/jerboa-src/src/jsh/ssh-static.ss b/jerboa-src/src/jsh/ssh-static.ss
index e5177f2..9e46a17 100644
--- a/jerboa-src/src/jsh/ssh-static.ss
+++ b/jerboa-src/src/jsh/ssh-static.ss
@@ -3,7 +3,8 @@
 
 (export ssh-static-registered?)
 
-(import (jsh optional-static)
+(import (rnrs)
+        (jsh optional-static)
         (prefix (jerboa-ssh api) %ssh-api-)
         (prefix (jerboa-ssh client) %ssh-client-)
         (prefix (jerboa-ssh channel) %ssh-channel-)
diff --git a/jerboa-src/src/jsh/worm-static.ss b/jerboa-src/src/jsh/worm-static.ss
index a3b32b1..a8e904d 100644
--- a/jerboa-src/src/jsh/worm-static.ss
+++ b/jerboa-src/src/jsh/worm-static.ss
@@ -3,7 +3,8 @@
 
 (export worm-static-registered?)
 
-(import (jsh optional-static)
+(import (rnrs)
+        (jsh optional-static)
         (prefix (wormhole cli) %worm-))
 
 (define worm-static-registered? #t)
diff --git a/jerboa-src/src/jsh/yubikey-static.ss b/jerboa-src/src/jsh/yubikey-static.ss
index 715ebd3..66dde7d 100644
--- a/jerboa-src/src/jsh/yubikey-static.ss
+++ b/jerboa-src/src/jsh/yubikey-static.ss
@@ -3,7 +3,8 @@
 
 (export yubikey-static-registered?)
 
-(import (jsh optional-static)
+(import (rnrs)
+        (jsh optional-static)
         (prefix (yubikey auth) %yk-auth-)
         (prefix (yubikey oath) %yk-oath-))