elm_module: Load not installed modules from build dir with ELM_RUN_IN_TREE

If we want to run from the local build dir without make install before
elm_module would fail to load the modules as it is expecting them in the
final install location.

We can now change this by setting ELM_RUN_IN_TREE to force it load the not
yet installed modules.

ref T2028

legacy/elementary/src/lib/Makefile.am

@@ -22,6 +22,7 @@ AM_CPPFLAGS = \
 -DLOCALE_DIR=\"$(localedir)\" \
 -DPACKAGE_LIB_DIR=\"$(libdir)\" \
 -DICON_DIR=\"$(datadir)/icons\" \
+-DELM_TOP_BUILD_DIR=\"$(top_builddir)\" \
 -DELEMENTARY_BUILD \
 @ELEMENTARY_CFLAGS@
 

legacy/elementary/src/lib/elm_module.c

@@ -131,9 +131,16 @@ _elm_module_load(Elm_Module *m)
    if (m->module) return EINA_TRUE;
    if (strchr(m->name, '/')) return EINA_FALSE;
 
-   snprintf(buf, sizeof(buf),
-            "%s/elementary/modules/%s/%s/module"EFL_SHARED_EXTENSION,
+   if (getenv("ELM_RUN_IN_TREE"))
+     {
+        snprintf(buf, sizeof(buf),
+             ELM_TOP_BUILD_DIR "/src/modules/%s/.libs/module"EFL_SHARED_EXTENSION, m->name);
+     }
+   else
+     {
+        snprintf(buf, sizeof(buf), "%s/elementary/modules/%s/%s/module"EFL_SHARED_EXTENSION,
             _elm_lib_dir, m->name, MODULE_ARCH);
+     }
    m->module = eina_module_new(buf);
    if ((m->module) && (eina_module_load(m->module) == EINA_TRUE))
      {

legacy/elementary/src/tests/Makefile.am

@@ -1,5 +1,6 @@
 AM_TESTS_ENVIRONMENT = \
-	ELM_DATA_DIR=${top_builddir}/data
+	ELM_DATA_DIR=${top_builddir}/data \
+	ELM_RUN_IN_TREE=1
 
 AUTOMAKE_OPTIONS     = 1.4 foreign
 MAINTAINERCLEANFILES = Makefile.in

legacy/elementary/src/tests/elm_suite.c

@@ -108,6 +108,8 @@ main(int argc EINA_UNUSED, char **argv EINA_UNUSED)
    Suite *s;
    SRunner *sr;
 
+   putenv("ELM_RUN_IN_TREE=1");
+
    s = elm_suite();
    sr = srunner_create(s);