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-rw-r--r--m4/guix.m47
1 files changed, 6 insertions, 1 deletions
diff --git a/m4/guix.m4 b/m4/guix.m4
index 96319b2c14..563ce51699 100644
--- a/m4/guix.m4
+++ b/m4/guix.m4
@@ -215,7 +215,8 @@ AC_DEFUN([GUIX_TEST_HASH_BANG_LENGTH], [
dnl GUIX_CHECK_FILE_NAME_LIMITS
dnl
dnl GNU/Linux has a couple of silly limits that we can easily run into.
-dnl Make sure everything is fine with the current settings.
+dnl Make sure everything is fine with the current settings. Set $1 to
+dnl 'yes' if tests can run, 'no' otherwise.
AC_DEFUN([GUIX_CHECK_FILE_NAME_LIMITS], [
AC_REQUIRE([GUIX_SOCKET_FILE_NAME_LENGTH])
AC_REQUIRE([GUIX_TEST_SOCKET_FILE_NAME_LENGTH])
@@ -228,10 +229,14 @@ AC_DEFUN([GUIX_CHECK_FILE_NAME_LIMITS], [
if test "$ac_cv_guix_test_socket_file_name_length" -ge ]SOCKET_FILE_NAME_LIMIT[; then
AC_MSG_WARN([socket file name limit may be exceeded when running tests])
fi
+
+ $1=yes
if test "$ac_cv_guix_hash_bang_length" -ge ]LINUX_HASH_BANG_LIMIT[; then
+ $1=no
AC_MSG_ERROR([store directory '$storedir' would lead to overly long hash-bang lines])
fi
if test "$ac_cv_guix_test_hash_bang_length" -ge ]LINUX_HASH_BANG_LIMIT[; then
+ $1=no
AC_MSG_WARN([test directory '$ac_cv_guix_test_root' may lead to overly long hash-bang lines])
fi
])