Cleanup: move declaration of get_stylesheet() to qthelper.h

The function is defined in qthelper.c and thus not all users
of dive.h have to suck in the xslt headers.

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

core/dive.h

@@ -13,8 +13,6 @@
 #include <string.h>
 #include <sys/stat.h>
 #include "divesite.h"
-#include <libxslt/transform.h>
-#include <libxslt/xsltutils.h>
 
 #include "units.h"
 
@@ -507,8 +505,6 @@ extern bool subsurface_user_is_root(void);
 
 extern timestamp_t get_times();
 
-extern xsltStylesheetPtr get_stylesheet(const char *name);
-
 extern timestamp_t utc_mktime(struct tm *tm);
 extern void utc_mkdate(timestamp_t, struct tm *tm);
 

core/errorhelper.c

@@ -3,6 +3,7 @@
 // Clang has a bug on zero-initialization of C structs.
 #pragma clang diagnostic ignored "-Wmissing-field-initializers"
 #endif
+#include <stdarg.h>
 #include "dive.h"
 #include "membuffer.h"
 

core/qthelper.h

@@ -3,6 +3,8 @@
 #define QTHELPER_H
 
 #include <stdint.h>
+#include <libxslt/transform.h>
+#include <libxslt/xsltutils.h>
 #include "dive.h"
 #include "divelist.h"
 
@@ -161,6 +163,7 @@ void cache_insert(int tissue, int timestep, enum inertgas gas, double value);
 void print_qt_versions();
 void lock_planner();
 void unlock_planner();
+xsltStylesheetPtr get_stylesheet(const char *name);
 
 #ifdef __cplusplus
 }

core/uemis-downloader.c

@@ -16,6 +16,7 @@
 #include <fcntl.h>
 #include <dirent.h>
 #include <stdio.h>
+#include <stdarg.h>
 #include <unistd.h>
 #include <string.h>
 #include <errno.h>