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-rw-r--r--m4/guix.m417
1 files changed, 0 insertions, 17 deletions
diff --git a/m4/guix.m4 b/m4/guix.m4
index 721285b014..8e174e92e5 100644
--- a/m4/guix.m4
+++ b/m4/guix.m4
@@ -136,23 +136,6 @@ AC_DEFUN([GUIX_ASSERT_GUILE_FEATURES], [
   done
 ])
 
-dnl GUIX_CHECK_UNBUFFERED_CBIP
-dnl
-dnl Check whether 'setbvuf' works on custom binary input ports (CBIPs), as is
-dnl the case starting with Guile 2.0.10.
-AC_DEFUN([GUIX_CHECK_UNBUFFERED_CBIP], [
-  AC_CACHE_CHECK([whether Guile's custom binary input ports support 'setvbuf'],
-    [ac_cv_guix_cbips_support_setvbuf],
-    [if "$GUILE" -c "(use-modules (rnrs io ports))			\
-       (let ((p (make-custom-binary-input-port \"cbip\" pk #f #f #f)))	\
-         (setvbuf p _IONBF))" >&5 2>&1
-     then
-       ac_cv_guix_cbips_support_setvbuf=yes
-     else
-       ac_cv_guix_cbips_support_setvbuf=no
-     fi])
-])
-
 dnl GUIX_ASSERT_SYNTAX_OBJECT_EQUAL
 dnl
 dnl Guile 2.2.1 was a brown-paper-bag release where 'equal?' wouldn't work