[PATCH 1/2] stdbool: depend on C99

[Paul Eggert]

Record that stdbool depends on C99 these days.
This matters only for ancient compilers that need special
flags to support C99 features.
* modules/stdbool (Depends-on): Add c99.
---
 ChangeLog       | 8 ++++++++
 modules/stdbool | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 9c26d25bd0..1846e7c381 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2022-09-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+       stdbool: depend on C99
+       Record that stdbool depends on C99 these days.
+       This matters only for ancient compilers that need special
+       flags to support C99 features.
+       * modules/stdbool (Depends-on): Add c99.
+
 2022-09-14  Bruno Haible  <bruno@clisp.org>
 
        verify: Avoid syntax error due to static_assert with MSVC 14 in C++.
diff --git a/modules/stdbool b/modules/stdbool
index b5a52523d3..2e771a2336 100644
--- a/modules/stdbool
+++ b/modules/stdbool
@@ -4,6 +4,9 @@ A bool that is like C23.
 Files:
 m4/c-bool.m4
 
+Depends-on:
+c99
+
 configure.ac:
 gl_C_BOOL
 
-- 
2.37.2