Re: unilbrk: Don't compile unused functions outside of libunistring

[Bruno Haible]

> 2023-02-11  Bruno Haible  <bruno@clisp.org>
> 
>       unilbrk: Don't compile unused functions outside of libunistring.
>       * lib/unilbrk/u8-possible-linebreaks.c (u8_possible_linebreaks): Don't
>       compile outside of libunistring.

Oops, this patch broke the unit tests:

/tmp/testdir4/gltests/unilbrk/test-u16-possible-linebreaks.c:259: undefined 
reference to `u16_possible_linebreaks'

and similar.

This patch fixes it.


2023-02-18  Bruno Haible  <bruno@clisp.org>

        unilbrk tests: Fix compilation failures (regression 2023-02-11).
        * tests/unilbrk/test-u8-possible-linebreaks.c (main): Outside of
        libunistring, don't test the backward compatibility function.
        * tests/unilbrk/test-u16-possible-linebreaks.c (main): Likewise.
        * tests/unilbrk/test-u32-possible-linebreaks.c (main): Likewise.
        * tests/unilbrk/test-ulc-possible-linebreaks.c (main): Likewise.
        * tests/unilbrk/test-u8-width-linebreaks.c (main): Likewise.
        * tests/unilbrk/test-u16-width-linebreaks.c (main): Likewise.
        * tests/unilbrk/test-u32-width-linebreaks.c (main): Likewise.
        * tests/unilbrk/test-ulc-width-linebreaks.c (main): Likewise.

diff --git a/tests/unilbrk/test-u16-possible-linebreaks.c 
b/tests/unilbrk/test-u16-possible-linebreaks.c
index 63207b5805..5d72227350 100644
--- a/tests/unilbrk/test-u16-possible-linebreaks.c
+++ b/tests/unilbrk/test-u16-possible-linebreaks.c
@@ -255,8 +255,10 @@ int
 main ()
 {
   test_function (u16_possible_linebreaks, 2);
-#undef u16_possible_linebreaks
+#ifdef IN_LIBUNISTRING_GNULIB_TESTS
+# undef u16_possible_linebreaks
   test_function (u16_possible_linebreaks, 1);
+#endif
 
   return 0;
 }
diff --git a/tests/unilbrk/test-u16-width-linebreaks.c 
b/tests/unilbrk/test-u16-width-linebreaks.c
index 3a38419bae..e59e4744b4 100644
--- a/tests/unilbrk/test-u16-width-linebreaks.c
+++ b/tests/unilbrk/test-u16-width-linebreaks.c
@@ -76,8 +76,10 @@ int
 main ()
 {
   test_function (u16_width_linebreaks, 2);
-#undef u16_width_linebreaks
+#ifdef IN_LIBUNISTRING_GNULIB_TESTS
+# undef u16_width_linebreaks
   test_function (u16_width_linebreaks, 1);
+#endif
 
   return 0;
 }
diff --git a/tests/unilbrk/test-u32-possible-linebreaks.c 
b/tests/unilbrk/test-u32-possible-linebreaks.c
index bb99ec5752..203fed0c89 100644
--- a/tests/unilbrk/test-u32-possible-linebreaks.c
+++ b/tests/unilbrk/test-u32-possible-linebreaks.c
@@ -255,8 +255,10 @@ int
 main ()
 {
   test_function (u32_possible_linebreaks, 2);
-#undef u32_possible_linebreaks
+#ifdef IN_LIBUNISTRING_GNULIB_TESTS
+# undef u32_possible_linebreaks
   test_function (u32_possible_linebreaks, 1);
+#endif
 
   return 0;
 }
diff --git a/tests/unilbrk/test-u32-width-linebreaks.c 
b/tests/unilbrk/test-u32-width-linebreaks.c
index 79b7222ad7..b64989e895 100644
--- a/tests/unilbrk/test-u32-width-linebreaks.c
+++ b/tests/unilbrk/test-u32-width-linebreaks.c
@@ -76,8 +76,10 @@ int
 main ()
 {
   test_function (u32_width_linebreaks, 2);
-#undef u32_width_linebreaks
+#ifdef IN_LIBUNISTRING_GNULIB_TESTS
+# undef u32_width_linebreaks
   test_function (u32_width_linebreaks, 1);
+#endif
 
   return 0;
 }
diff --git a/tests/unilbrk/test-u8-possible-linebreaks.c 
b/tests/unilbrk/test-u8-possible-linebreaks.c
index ac0abadc4a..a5b533a31a 100644
--- a/tests/unilbrk/test-u8-possible-linebreaks.c
+++ b/tests/unilbrk/test-u8-possible-linebreaks.c
@@ -238,8 +238,10 @@ int
 main ()
 {
   test_function (u8_possible_linebreaks, 2);
-#undef u8_possible_linebreaks
+#ifdef IN_LIBUNISTRING_GNULIB_TESTS
+# undef u8_possible_linebreaks
   test_function (u8_possible_linebreaks, 1);
+#endif
 
   return 0;
 }
diff --git a/tests/unilbrk/test-u8-width-linebreaks.c 
b/tests/unilbrk/test-u8-width-linebreaks.c
index d1d8ae9139..967d238d8d 100644
--- a/tests/unilbrk/test-u8-width-linebreaks.c
+++ b/tests/unilbrk/test-u8-width-linebreaks.c
@@ -70,8 +70,10 @@ int
 main ()
 {
   test_function (u8_width_linebreaks, 2);
-#undef u8_width_linebreaks
+#ifdef IN_LIBUNISTRING_GNULIB_TESTS
+# undef u8_width_linebreaks
   test_function (u8_width_linebreaks, 1);
+#endif
 
   return 0;
 }
diff --git a/tests/unilbrk/test-ulc-possible-linebreaks.c 
b/tests/unilbrk/test-ulc-possible-linebreaks.c
index 9cd8b0d727..1d80af10ee 100644
--- a/tests/unilbrk/test-ulc-possible-linebreaks.c
+++ b/tests/unilbrk/test-ulc-possible-linebreaks.c
@@ -71,8 +71,10 @@ int
 main ()
 {
   test_function (ulc_possible_linebreaks, 2);
-#undef ulc_possible_linebreaks
+#ifdef IN_LIBUNISTRING_GNULIB_TESTS
+# undef ulc_possible_linebreaks
   test_function (ulc_possible_linebreaks, 1);
+#endif
 
   return 0;
 }
diff --git a/tests/unilbrk/test-ulc-width-linebreaks.c 
b/tests/unilbrk/test-ulc-width-linebreaks.c
index e9c4fa23df..415a96fd44 100644
--- a/tests/unilbrk/test-ulc-width-linebreaks.c
+++ b/tests/unilbrk/test-ulc-width-linebreaks.c
@@ -55,8 +55,10 @@ int
 main ()
 {
   test_function (ulc_width_linebreaks, 2);
-#undef ulc_width_linebreaks
+#ifdef IN_LIBUNISTRING_GNULIB_TESTS
+# undef ulc_width_linebreaks
   test_function (ulc_width_linebreaks, 1);
+#endif
 
   return 0;
 }