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-rw-r--r--etc/PROBLEMS9
1 files changed, 9 insertions, 0 deletions
diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index 15e2b3359d4..7dfafe04deb 100644
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -2986,6 +2986,15 @@ as a macro. If the definition (in both unex*.c and malloc.c) is wrong,
it can cause problems like this. You might be able to find the correct
value in the man page for a.out(5).
+* 'make check' failures
+
+** emacs-module-tests fail on Ubuntu 16.04
+
+This is due to a bug in GCC that was fixed in 2015; see
+<https://lists.gnu.org/r/emacs-devel/2018-09/msg00548.html>.
+You can work around the problem by using a later version of GCC or of
+Ubuntu, or by configuring without modules.
+
* Problems on legacy systems
This section covers bugs reported on very old hardware or software.