package/check: fix build on noMMU configurations

check was failing to build on noMMU configurations due to mistake in
the build conditionals of the code around the HAVE_FORK macro. This
commit brings a patch, submitted upstream, that fixes those issues.

Fixes:

  http://autobuild.buildroot.net/results/1509108aa111da706d544eb67e1ae2c2b34bd4e4/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/check/0002-src-check_run.c-fix-build-on-noMMU-platforms.patch

@@ -0,0 +1,82 @@
+From c9bebf051aa7e3037ca8e0fe554e073204ffedde Mon Sep 17 00:00:00 2001
+From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+Date: Fri, 12 Jul 2024 21:27:47 +0200
+Subject: [PATCH] src/check_run.c: fix build on noMMU platforms
+
+src/check_run.c defines sig_handler() under the following conditions:
+
+  #if defined(HAVE_FORK) && HAVE_FORK==1
+
+however, it does use sig_handler under the following conditions:
+
+  #if defined(HAVE_SIGACTION) && defined(HAVE_FORK)
+
+which breaks when HAVE_FORK is defined, but has the value HAVE_FORK=0,
+as is the case on noMMU platforms.
+
+This commit fixes this by ensuring that the build conditions are
+aligned throughout check_run.c.
+
+Fixes:
+
+src/check_run.c: In function 'srunner_run_tagged':
+src/check_run.c:802:38: error: 'sig_handler' undeclared (first use in this function); did you mean 'sa_handler'?
+[...]
+
+Upstream: https://github.com/libcheck/check/pull/354
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+---
+ src/check_run.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/src/check_run.c b/src/check_run.c
+index 5f160e5..4c370b3 100644
+--- a/src/check_run.c
++++ b/src/check_run.c
+@@ -772,12 +772,12 @@ void srunner_run_tagged(SRunner * sr, const char *sname, const char *tcname,
+                         const char *include_tags, const char *exclude_tags,
+                         enum print_output print_mode)
+ {
+-#if defined(HAVE_SIGACTION) && defined(HAVE_FORK)
++#if defined(HAVE_SIGACTION) && defined(HAVE_FORK) && HAVE_FORK==1
+     static struct sigaction sigalarm_old_action;
+     static struct sigaction sigalarm_new_action;
+     static struct sigaction sigint_new_action;
+     static struct sigaction sigterm_new_action;
+-#endif /* HAVE_SIGACTION && HAVE_FORK */
++#endif /* HAVE_SIGACTION && HAVE_FORK && HAVE_FORK==1 */
+ 
+     /*  Get the selected test suite and test case from the
+        environment.  */
+@@ -797,7 +797,7 @@ void srunner_run_tagged(SRunner * sr, const char *sname, const char *tcname,
+         eprintf("Bad print_mode argument to srunner_run_all: %d",
+                 __FILE__, __LINE__, print_mode);
+     }
+-#if defined(HAVE_SIGACTION) && defined(HAVE_FORK)
++#if defined(HAVE_SIGACTION) && defined(HAVE_FORK) && HAVE_FORK==1
+     memset(&sigalarm_new_action, 0, sizeof(sigalarm_new_action));
+     sigalarm_new_action.sa_handler = sig_handler;
+     sigaction(SIGALRM, &sigalarm_new_action, &sigalarm_old_action);
+@@ -809,16 +809,16 @@ void srunner_run_tagged(SRunner * sr, const char *sname, const char *tcname,
+     memset(&sigterm_new_action, 0, sizeof(sigterm_new_action));
+     sigterm_new_action.sa_handler = sig_handler;
+     sigaction(SIGTERM, &sigterm_new_action, &sigterm_old_action);
+-#endif /* HAVE_SIGACTION && HAVE_FORK */
++#endif /* HAVE_SIGACTION && HAVE_FORK && HAVE_FORK==1 */
+     srunner_run_init(sr, print_mode);
+     srunner_iterate_suites(sr, sname, tcname, include_tags, exclude_tags,
+                            print_mode);
+     srunner_run_end(sr, print_mode);
+-#if defined(HAVE_SIGACTION) && defined(HAVE_FORK)
++#if defined(HAVE_SIGACTION) && defined(HAVE_FORK) && HAVE_FORK==1
+     sigaction(SIGALRM, &sigalarm_old_action, NULL);
+     sigaction(SIGINT, &sigint_old_action, NULL);
+     sigaction(SIGTERM, &sigterm_old_action, NULL);
+-#endif /* HAVE_SIGACTION && HAVE_FORK */
++#endif /* HAVE_SIGACTION && HAVE_FORK && HAVE_FORK==1 */
+ }
+ 
+ void srunner_run(SRunner * sr, const char *sname, const char *tcname,
+-- 
+2.45.2
+