Re: mbrtoc32: Work around bug in Cygwin 3.5.3

[Bruno Haible]

I did:

> 2024-05-23  Bruno Haible  <br...@clisp.org>
> 
>       mbrtoc32: Strengthen tests.
>       * tests/test-mbrtoc32.c (main): Add tests for one-by-one input in the
>       UTF-8 and GB18030 encodings.

Oops, the new test fails on Solaris 11.4. Fixed as follows:


2024-05-24  Bruno Haible  <br...@clisp.org>

        mbrtoc32 tests: Avoid failure on Solaris 11.4 (regression yesterday).
        * tests/test-mbrtoc32.c (main): Conditionalize an assertion with
        GL_CHAR32_T_IS_UNICODE.

diff --git a/tests/test-mbrtoc32.c b/tests/test-mbrtoc32.c
index 68c601e2e5..b1c50c963c 100644
--- a/tests/test-mbrtoc32.c
+++ b/tests/test-mbrtoc32.c
@@ -315,7 +315,7 @@ main (int argc, char *argv[])
           wc = (char32_t) 0xBADFACE;
           ret = mbrtoc32 (&wc, "\203", 1, &state);
           ASSERT (ret == 1);
-          ASSERT (wc == 0x0001F403);
+          ASSERT (wc == 0x1F403); /* expect Unicode encoding */
           ASSERT (mbsinit (&state));
         }
         return test_exit_status;
@@ -485,7 +485,9 @@ main (int argc, char *argv[])
           wc = (char32_t) 0xBADFACE;
           ret = mbrtoc32 (&wc, "\067", 1, &state);
           ASSERT (ret == 1);
-          ASSERT (wc == 0x0001F403);
+          #if GL_CHAR32_T_IS_UNICODE
+          ASSERT (wc == 0x1F403); /* expect Unicode encoding */
+          #endif
           ASSERT (mbsinit (&state));
         }
         return test_exit_status;