test: threads: Fix link failure due to missing dependency

Commit 036d26d667 ("test: threads: Test thread cleanup upon abnormal
termination") added calls to functions provided by the pthread library
in the threads test, but didn't add the corresponding dependency. This
caused a link breakage on some platforms:

/usr/bin/ld: test/threads.p/threads.cpp.o: undefined reference to symbol 'pthread_cancel@@GLIBC_2.4'
/usr/bin/ld: /lib/arm-linux-gnueabihf/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status

Fix it by adding the missing dependency.

Fixes: 036d26d667 ("test: threads: Test thread cleanup upon abnormal termination")
Reported-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Tested-by: Naushir Patuck <naush@raspberrypi.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>

src/libcamera/base/meson.build

@@ -38,9 +38,9 @@ if libunwind.found()
 endif
 
 libcamera_base_deps = [
-    dependency('threads'),
     libatomic,
     libdw,
+    libthreads,
     libunwind,
 ]
 

src/libcamera/meson.build

@@ -58,6 +58,7 @@ includes = [
 ]
 
 libatomic = cc.find_library('atomic', required : false)
+libthreads = dependency('threads')
 
 subdir('base')
 subdir('ipa')

test/meson.build

@@ -51,7 +51,7 @@ internal_tests = [
     ['pixel-format',                    'pixel-format.cpp'],
     ['shared-fd',                       'shared-fd.cpp'],
     ['signal-threads',                  'signal-threads.cpp'],
-    ['threads',                         'threads.cpp'],
+    ['threads',                         'threads.cpp', [libthreads]],
     ['timer',                           'timer.cpp'],
     ['timer-thread',                    'timer-thread.cpp'],
     ['unique-fd',                       'unique-fd.cpp'],
@@ -65,8 +65,13 @@ internal_non_parallel_tests = [
 ]
 
 foreach t : public_tests
+    deps = [libcamera_public]
+    if t.length() > 2
+        deps += t[2]
+    endif
+
     exe = executable(t[0], t[1],
-                     dependencies : libcamera_public,
+                     dependencies : deps,
                      link_with : test_libraries,
                      include_directories : test_includes_public)
 
@@ -74,8 +79,13 @@ foreach t : public_tests
 endforeach
 
 foreach t : internal_tests
+    deps = [libcamera_private]
+    if t.length() > 2
+        deps += t[2]
+    endif
+
     exe = executable(t[0], t[1],
-                     dependencies : libcamera_private,
+                     dependencies : deps,
                      link_with : test_libraries,
                      include_directories : test_includes_internal)
 
@@ -83,8 +93,13 @@ foreach t : internal_tests
 endforeach
 
 foreach t : internal_non_parallel_tests
+    deps = [libcamera_private]
+    if t.length() > 2
+        deps += t[2]
+    endif
+
     exe = executable(t[0], t[1],
-                     dependencies : libcamera_private,
+                     dependencies : deps,
                      link_with : test_libraries,
                      include_directories : test_includes_internal)