Remove unnecessary system includes from public headers

Add includes of system headers in the implementation files
where necessary.

1 files changed, 1 insertions, 0 deletions

diff --git a/FL/Fl.H b/FL/Fl.H
index dfa9c5748..1706cc2d5 100644
--- a/FL/Fl.H
+++ b/FL/Fl.H
@@ -42,6 +42,7 @@
 #    undef BSD
 #  endif
 
+#include <string.h> // FIXME: Fl::is_scheme(): strcmp needs string.h
 
 class Fl_Widget;
 class Fl_Window;