diff --git a/lib/meson.build b/lib/meson.build
index 90b6a6e0..74f8dec5 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -68,7 +68,7 @@ libsysprof_deps = [
 ]
 
 version_link_arg = '-Wl,--version-script,' + join_paths(meson.current_source_dir(), 'sysprof.map')
-libsysprof_c_args = [ '-DSP_ENABLE_GOBJECT' ]
+libsysprof_c_args = release_flags + ['-DSP_ENABLE_GOBJECT']
 
 if get_option('with_sysprofd') != 'none'
   libsysprof_deps += dependency('polkit-gobject-1')
@@ -77,6 +77,7 @@ endif
 
 libsysprof_capture = static_library('sysprof-capture-' + libsysprof_api_version,
   libsysprof_capture_sources,
+        c_args: release_flags,
   dependencies: libsysprof_capture_deps,
        install: true,
 )
@@ -120,7 +121,7 @@ if get_option('enable_gtk')
     dependency('gtk+-3.0', version: '>=3.22.0'),
   ]
 
-  libsysprof_ui_c_args = [ '-DSP_ENABLE_GOBJECT' ]
+  libsysprof_ui_c_args = release_flags + ['-DSP_ENABLE_GOBJECT']
 
   libsysprof_ui = shared_library('sysprof-ui-' + libsysprof_api_version,
     libsysprof_ui_resources + libsysprof_ui_sources,
diff --git a/meson.build b/meson.build
index f48988bf..258b062c 100644
--- a/meson.build
+++ b/meson.build
@@ -103,24 +103,21 @@ endif
 
 add_project_arguments(global_c_args, language: 'c')
 
+release_flags = []
 global_link_args = []
 test_link_args = [
   '-Wl,-z,relro',
   '-Wl,-z,now',
 ]
 if not get_option('buildtype').startswith('debug')
-
-  # TODO: Maybe reuse 'b_ndebug' option
-  add_global_arguments([
+  release_flags += [
     '-DG_DISABLE_CAST_CHECKS',
     '-DG_DISABLE_ASSERT',
-  ], language: 'c')
-
+  ]
   test_link_args += [
     '-Wl,-Bsymbolic',
     '-fno-plt',
   ]
-
 endif
 
 foreach arg: test_link_args
diff --git a/src/meson.build b/src/meson.build
index 15cd93f2..4804fb77 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -11,21 +11,17 @@ sysprof_sources = [
   'sp-window-settings.h',
 ]
 
-sysprof_resources = gnome.compile_resources(
-  'sp-resources', 'resources/sysprof.gresource.xml',
+sysprof_resources = gnome.compile_resources('sp-resources', 'resources/sysprof.gresource.xml',
   source_dir: 'resources',
-  c_name: 'sysprof',
+      c_name: 'sysprof',
 )
 
-sysprof = executable('sysprof',
-  sysprof_resources + sysprof_sources,
-  dependencies: [
-    libsysprof_ui_dep,
-    cc.find_library('m', required: false),
-  ],
-  c_args: exe_c_args,
-  link_args: exe_link_args,
-  install: true,
+sysprof = executable('sysprof', sysprof_resources + sysprof_sources,
+       gui_app: true,
+       install: true,
+        c_args: release_flags + exe_c_args,
+  dependencies: [libsysprof_ui_dep, cc.find_library('m', required: false)],
+     link_args: exe_link_args,
 )
 
 endif
diff --git a/tests/meson.build b/tests/meson.build
index 1ba0a65c..3e3d88e9 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -6,38 +6,44 @@ test_env = [
   'MALLOC_CHECK_=2',
 ]
 
-test_capture = executable('test-capture',
-  'test-capture.c',
+test_cflags = [
+  '-DTEST_DATA_DIR="@0@/data/"'.format(meson.current_source_dir()),
+  '-I' + join_paths(meson.source_root(), 'lib'),
+]
+
+test_capture = executable('test-capture', 'test-capture.c',
+        c_args: test_cflags,
   dependencies: libsysprof_capture_dep,
 )
 test('test-capture', test_capture, env: test_env)
 
-test_capture_cursor = executable('test-capture-cursor',
-  'test-capture-cursor.c',
+test_capture_cursor = executable('test-capture-cursor', 'test-capture-cursor.c',
+        c_args: test_cflags,
   dependencies: libsysprof_dep,
 )
 test('test-capture-cursor', test_capture_cursor, env: test_env)
 
-test_kallsyms = executable('test-kallsyms',
-  ['test-kallsyms.c', '../lib/sp-kallsyms.c'],
+# Use ./tests/test-kallsyms /proc/kallsyms to test (as user or root)
+test_kallsyms = executable('test-kallsyms', ['test-kallsyms.c', '../lib/sp-kallsyms.c'],
+        c_args: test_cflags,
   dependencies: libsysprof_dep,
 )
 
 if get_option('enable_gtk')
 
-  test_model_filter = executable('test-model-filter',
-    'test-model-filter.c',
+  test_model_filter = executable('test-model-filter', 'test-model-filter.c',
+          c_args: test_cflags,
     dependencies: libsysprof_ui_dep,
   )
   test('test-model-filter', test_model_filter, env: test_env)
 
-  test_process_model = executable('test-process-model',
-    'test-process-model.c',
+  test_process_model = executable('test-process-model', 'test-process-model.c',
+          c_args: test_cflags,
     dependencies: libsysprof_ui_dep,
   )
 
-  test_zoom = executable('test-zoom',
-    'test-zoom.c',
+  test_zoom = executable('test-zoom', 'test-zoom.c',
+          c_args: test_cflags,
     dependencies: libsysprof_ui_dep,
   )
   test('test-zoom', test_zoom, env: test_env)