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-rw-r--r--m4/m4.m44
1 files changed, 2 insertions, 2 deletions
diff --git a/m4/m4.m4 b/m4/m4.m4
index 08929465..e10197bb 100644
--- a/m4/m4.m4
+++ b/m4/m4.m4
@@ -11,8 +11,8 @@
# --------------
# Check for GNU M4, at least 1.4.6 (all earlier versions had bugs in
# trace support and regexp support):
-# http://lists.gnu.org/archive/html/bug-gnu-utils/2006-11/msg00096.html
-# http://lists.gnu.org/archive/html/bug-autoconf/2009-07/msg00023.html
+# https://lists.gnu.org/archive/html/bug-gnu-utils/2006-11/msg00096.html
+# https://lists.gnu.org/archive/html/bug-autoconf/2009-07/msg00023.html
# Also, check whether --error-output (through 1.4.x) or --debugfile (2.0)
# is supported, and AC_SUBST M4_DEBUGFILE accordingly.
# Also avoid versions of m4 that trigger strstr bugs.