https://issues.dlang.org/show_bug.cgi?id=23479

          Issue ID: 23479
           Summary: ImportC recognizes .i and .c files, but not .h files
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: bugzilla@digitalmars.com

Experience shows that not directly recognizing .h files as C files is unexpected and should be fixed.

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