[build] missing optional includes

src/base/attr_line.hh

@@ -33,6 +33,7 @@
 #define attr_line_hh
 
 #include <new>
+#include <optional>
 #include <string>
 #include <vector>
 

src/base/fs_util.hh

@@ -30,6 +30,7 @@
 #ifndef lnav_fs_util_hh
 #define lnav_fs_util_hh
 
+#include <optional>
 #include <set>
 #include <string>
 #include <vector>

src/base/intern_string.hh

@@ -32,6 +32,7 @@
 #ifndef intern_string_hh
 #define intern_string_hh
 
+#include <optional>
 #include <ostream>
 #include <vector>
 

src/base/itertools.hh

@@ -34,6 +34,7 @@
 #include <deque>
 #include <map>
 #include <memory>
+#include <optional>
 #include <set>
 #include <type_traits>
 #include <vector>

src/byte_array.hh

@@ -29,6 +29,7 @@
 #ifndef byte_array_hh
 #define byte_array_hh
 
+#include <optional>
 #include <ostream>
 #include <string>
 
@@ -114,8 +115,7 @@ struct byte_array {
             this->ba_data[15 % BYTE_COUNT]);
     }
 
-    std::string to_string(std::optional<char> separator
-                          = std::nullopt) const
+    std::string to_string(std::optional<char> separator = std::nullopt) const
     {
         std::string retval;
 

src/command_executor.hh

@@ -31,6 +31,7 @@
 #define LNAV_COMMAND_EXECUTOR_H
 
 #include <future>
+#include <optional>
 #include <stack>
 #include <string>
 

src/db_sub_source.hh

@@ -31,6 +31,7 @@
 #define db_sub_source_hh
 
 #include <iterator>
+#include <optional>
 #include <string>
 #include <vector>
 
@@ -83,11 +84,9 @@ public:
 
     void clear();
 
-    std::optional<size_t> column_name_to_index(
-        const std::string& name) const;
+    std::optional<size_t> column_name_to_index(const std::string& name) const;
 
-    std::optional<vis_line_t> row_for_time(
-        struct timeval time_bucket) override;
+    std::optional<vis_line_t> row_for_time(struct timeval time_bucket) override;
 
     std::optional<row_info> time_for_row(vis_line_t row) override;