Checker ada/gcc: fix checking of header files.

Author: lcd047

plugin/syntastic.vim

@@ -19,7 +19,7 @@ if has('reltime')
     lockvar! g:_SYNTASTIC_START
 endif
 
-let g:_SYNTASTIC_VERSION = '3.9.0-15'
+let g:_SYNTASTIC_VERSION = '3.9.0-16'
 lockvar g:_SYNTASTIC_VERSION
 
 " Sanity checks {{{1

syntax_checkers/ada/gcc.vim

@@ -33,7 +33,7 @@ function! SyntaxCheckers_ada_gcc_GetLocList() dict
         \     '%f:%l:%c: %m,' .
         \     '%f:%l: %m',
         \ 'main_flags': '-c -x ada -gnats -gnatef',
-        \ 'header_flags': '-x ada -gnats -gnatef',
+        \ 'header_flags': '-S -x ada -gnats -gnatef',
         \ 'header_names': '\.ads$' })
 endfunction