[PATCH 1/3] gnulib-common: suppress -Wtautological-constant-out-of-range-compare

[Paul Eggert]

* m4/gnulib-common.m4 (gl_CC_GNULIB_WARNINGS): Pass
-Wno-tautological-constant-out-of-range-compare to clang, as it’s
the warning is enabled by default and in portable code where type
ranges are platform dependent it is generally more trouble than
it’s worth.
---
 ChangeLog           | 9 +++++++++
 m4/gnulib-common.m4 | 4 ++++
 2 files changed, 13 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index a3a10e0258..fd92a5741b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2023-12-29  Paul Eggert  <eggert@cs.ucla.edu>
+
+       gnulib-common: suppress -Wtautological-constant-out-of-range-compare
+       * m4/gnulib-common.m4 (gl_CC_GNULIB_WARNINGS): Pass
+       -Wno-tautological-constant-out-of-range-compare to clang, as it’s
+       the warning is enabled by default and in portable code where type
+       ranges are platform dependent it is generally more trouble than
+       it’s worth.
+
 2023-12-29  Simon Josefsson  <simon@josefsson.org>
 
        announce-gen: Improve links.
diff --git a/m4/gnulib-common.m4 b/m4/gnulib-common.m4
index b3852a595e..72f3f090ff 100644
--- a/m4/gnulib-common.m4
+++ b/m4/gnulib-common.m4
@@ -1074,6 +1074,7 @@ AC_DEFUN([gl_CC_GNULIB_WARNINGS],
     dnl -Wno-pedantic                         >= 4.8          >= 3.9
     dnl -Wno-sign-compare                     >= 3            >= 3.9
     dnl -Wno-sign-conversion                  >= 4.3          >= 3.9
+    dnl -Wno-tautological-out-of-range-compare  -             >= 3.9
     dnl -Wno-type-limits                      >= 4.3          >= 3.9
     dnl -Wno-undef                            >= 3            >= 3.9
     dnl -Wno-unsuffixed-float-constants       >= 4.5
@@ -1099,6 +1100,9 @@ AC_DEFUN([gl_CC_GNULIB_WARNINGS],
       #if __GNUC__ + (__GNUC_MINOR__ >= 8) > 4 || (__clang_major__ + 
(__clang_minor__ >= 9) > 3)
       -Wno-pedantic
       #endif
+      #if 3 < __clang_major__ + (9 <= __clang_minor__)
+      -Wno-tautological-constant-out-of-range-compare
+      #endif
       #if __GNUC__ + (__GNUC_MINOR__ >= 3) > 4 || (__clang_major__ + 
(__clang_minor__ >= 9) > 3)
       -Wno-sign-conversion
       -Wno-type-limits
-- 
2.40.1