cleanup: remove system includes from dive.c

Let the various source files include the system headers they need
themselves.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

core/dive.h

@@ -4,19 +4,13 @@
 
 // dive and dive computer related structures and helpers
 
-#include <stdlib.h>
-#include <stdint.h>
-#include <stdbool.h>
-#include <time.h>
-#include <math.h>
-#include <string.h>
-#include <stdio.h>
-
 #include "divemode.h"
 #include "divecomputer.h"
 #include "equipment.h"
 #include "picture.h"
 
+#include <stdio.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif

core/gaspressures.c

@@ -26,6 +26,8 @@
 #include "gaspressures.h"
 #include "pref.h"
 
+#include <stdlib.h>
+
 /*
  * simple structure to track the beginning and end tank pressure as
  * well as the integral of depth over time spent while we have no

core/import-csv.c

@@ -1,4 +1,5 @@
 #include <unistd.h>
+#include <stdlib.h>
 #include <errno.h>
 #include <libdivecomputer/parser.h>
 

core/import-shearwater.c

@@ -14,6 +14,8 @@
 #include "membuffer.h"
 #include "gettext.h"
 
+#include <stdlib.h>
+
 static int shearwater_cylinders(void *param, int columns, char **data, char **column)
 {
 	UNUSED(columns);

core/import-suunto.c

@@ -15,6 +15,8 @@
 #include "gettext.h"
 #include "tag.h"
 
+#include <stdlib.h>
+
 static int dm4_events(void *param, int columns, char **data, char **column)
 {
 	UNUSED(columns);

core/save-html.c

@@ -17,7 +17,9 @@
 #include "tag.h"
 #include "subsurface-time.h"
 #include "trip.h"
+
 #include <stdio.h>
+#include <string.h>
 
 static void write_attribute(struct membuffer *b, const char *att_name, const char *value, const char *separator)
 {

core/statistics.c

@@ -6,19 +6,21 @@
  * void calculate_stats_summary(struct stats_summary *out, bool selected_only);
  * void calculate_stats_selected(stats_t *stats_selection);
  */
-#include "gettext.h"
-#include <string.h>
-#include <ctype.h>
 
+#include "statistics.h"
 #include "dive.h"
 #include "display.h"
 #include "event.h"
+#include "gettext.h"
 #include "sample.h"
 #include "subsurface-time.h"
 #include "trip.h"
-#include "statistics.h"
 #include "units.h"
 
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
 static void process_temperatures(struct dive *dp, stats_t *stats)
 {
 	temperature_t min_temp, mean_temp, max_temp = {.mkelvin = 0};

core/statistics.h

@@ -16,6 +16,8 @@
 #define STATS_MAX_TEMP 40		/* Max temp for stats bucket is 40C */
 #define STATS_TEMP_BUCKET 5 /* Size of buckets for temp range */
 
+struct dive;
+
 typedef struct
 {
 	int period;

core/unix.c

@@ -7,7 +7,7 @@
 #include "subsurface-string.h"
 #include "display.h"
 #include "membuffer.h"
-#include <string.h>
+#include <stdlib.h>
 #include <sys/types.h>
 #include <dirent.h>
 #include <fnmatch.h>