meson: fix race condition in building

this came up on travis with osx. However, it should hit everyone, and
its questionable why it did not happened ever before.

Differential Revision: https://phab.enlightenment.org/D7831

src/modules/evas/engines/gl_generic/meson.build

@@ -39,7 +39,7 @@ engine_include_dir = include_directories(join_paths('..','software_generic'))
 if get_option('evas-modules') == 'shared' and not evas_force_static.contains(engine)
   shared_module(mod_full_name, engine_src,
         include_directories : config_dir + [engine_include_dir],
-        dependencies : [eina, evas_pre] + engine_deps,
+        dependencies : [eina, evas_pre] + engine_deps + [software_generic],
         install : true,
         install_dir : mod_install_dir,
         name_suffix : sys_mod_extension

src/modules/evas/meson.build

@@ -67,6 +67,12 @@ foreach engine_conf : engines
         dependencies : [eina, evas_pre] + engine_deps,
       )
 
+      if engine == 'software_generic'
+        software_generic = declare_dependency(
+          include_directories: engine_include_dir,
+          link_with : tmp
+        )
+      endif
       if engine == 'gl_common'
         #gl_common will only be used by gl_generic, NOT by libevas.so, so we work arround the static list
         gl_common = declare_dependency(