Add checks for HAVE_GPL to various GPL-only source files

This should actually cover all of them, if you take into account that
some unchanged GPL source files include header files with such checks.
Also this was done already for the libaf derived code.

This is only for "safety" and to avoid misunderstandings.

audio/out/ao_alsa.c

@@ -49,6 +49,10 @@
 #include "internal.h"
 #include "audio/format.h"
 
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct ao_alsa_opts {
     char *mixer_device;
     char *mixer_name;

audio/out/ao_jack.c

@@ -40,6 +40,10 @@
 
 #include <jack/jack.h>
 
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct jack_opts {
     char *port;
     char *client_name;

audio/out/ao_oss.c

@@ -49,6 +49,10 @@
 #include "ao.h"
 #include "internal.h"
 
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 // Define to 0 if the device must be reopened to reset it (stop all playback,
 // clear the buffer), and the device should be closed when unused.
 // Define to 1 if SNDCTL_DSP_RESET should be used to reset without close.

stream/audio_in.h

@@ -24,6 +24,10 @@
 
 #include "config.h"
 
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct mp_log;
 
 #if HAVE_ALSA

stream/dvbin.h

@@ -11,6 +11,10 @@
 #include "config.h"
 #include "stream.h"
 
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 #define SLOF (11700 * 1000UL)
 #define LOF1 (9750 * 1000UL)
 #define LOF2 (10600 * 1000UL)

stream/frequencies.h

@@ -125,4 +125,9 @@ struct CHANLISTS {
 extern const struct CHANLISTS   chanlists[];
 extern const int                chancount;
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 #endif /* MPLAYER_FREQUENCIES_H */

stream/stream_cdda.c

@@ -46,6 +46,11 @@
 
 #include "common/msg.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 typedef struct cdda_params {
     cdrom_drive_t *cd;
     cdrom_paranoia_t *cdp;

stream/stream_dvb.c

@@ -58,6 +58,10 @@
 #include "dvbin.h"
 #include "dvb_tune.h"
 
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 #define MAX_ADAPTERS 16
 #define CHANNEL_LINE_LEN 256
 #define min(a, b) ((a) <= (b) ? (a) : (b))

stream/stream_dvd_common.h

@@ -22,6 +22,11 @@
 #include <stdbool.h>
 #include "stream.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 extern const char * const dvd_audio_stream_channels[6];
 extern const char * const dvd_audio_stream_types[8];
 

stream/stream_dvdnav.c

@@ -19,6 +19,10 @@
 
 #include "config.h"
 
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>

stream/stream_smb.c

@@ -26,6 +26,11 @@
 #include "stream.h"
 #include "options/m_option.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct priv {
     int fd;
 };

stream/tv.h

@@ -26,6 +26,11 @@
 
 #include "osdep/endian.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct mp_log;
 
 typedef struct tv_params {

video/filter/vf_crop.c

@@ -29,6 +29,11 @@
 
 #include "options/m_option.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 static const struct vf_priv_s {
     int crop_w,crop_h;
     int crop_x,crop_y;

video/filter/vf_dsize.c

@@ -29,6 +29,11 @@
 #include "video/mp_image.h"
 #include "vf.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct vf_priv_s {
     int w, h;
     int method; // aspect method, 0 -> downscale, 1-> upscale. +2 -> original aspect.

video/filter/vf_expand.c

@@ -32,6 +32,11 @@
 
 #include "options/m_option.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 static struct vf_priv_s {
     // These four values are a backup of the values parsed from the command line.
     // This is necessary so that we do not get a mess upon filter reinit due to

video/filter/vf_flip.c

@@ -27,6 +27,11 @@
 
 #include "video/out/vo.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 static struct mp_image *filter(struct vf_instance *vf, struct mp_image *mpi)
 {
     mp_image_vflip(mpi);

video/filter/vf_format.c

@@ -32,6 +32,11 @@
 
 #include "options/m_option.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct vf_priv_s {
     int fmt;
     int outfmt;

video/filter/vf_gradfun.c

@@ -29,6 +29,11 @@
 
 #include "vf_lavfi.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct vf_priv_s {
     float cfg_thresh;
     int cfg_radius;

video/filter/vf_mirror.c

@@ -20,6 +20,11 @@
 #include "vf.h"
 #include "vf_lavfi.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 static int vf_open(vf_instance_t *vf)
 {
     MP_WARN(vf, "This filter is deprecated. Use lavfi hflip instead.\n");

video/filter/vf_noformat.c

@@ -29,6 +29,11 @@
 
 #include "options/m_option.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 static struct vf_priv_s {
     int fmt;
 } const vf_priv_dflt = {

video/filter/vf_pullup.c

@@ -26,6 +26,11 @@
 
 #include "vf_lavfi.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct vf_priv_s {
         struct pullup_context *ctx;
         int init;

video/filter/vf_rotate.c

@@ -27,6 +27,11 @@
 #include "vf.h"
 #include "vf_lavfi.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct vf_priv_s {
     int angle;
     int warn;

video/filter/vf_scale.c

@@ -41,6 +41,11 @@
 
 #include "vf_lavfi.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 static struct vf_priv_s {
     int w, h;
     int cfg_w, cfg_h;

video/filter/vf_stereo3d.c

@@ -36,6 +36,11 @@
 
 #include "vf_lavfi.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 //==types==//
 typedef enum stereo_code {
     ANAGLYPH_RC_GRAY,   //anaglyph red/cyan gray

video/filter/vf_sub.c

@@ -40,6 +40,11 @@
 
 #include "options/m_option.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct vf_priv_s {
     int opt_top_margin, opt_bottom_margin;
 

video/filter/vf_yadif.c

@@ -28,6 +28,11 @@
 
 #include "vf_lavfi.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct vf_priv_s {
     int mode;
     int interlaced_only;

video/out/opengl/hwdec_vaglx.c

@@ -30,6 +30,11 @@
 
 #include "ra_gl.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct priv_owner {
     struct mp_vaapi_ctx *ctx;
     VADisplay *display;

video/out/vo_caca.c

@@ -42,6 +42,11 @@
 #include "common/msg.h"
 #include "input/input.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct priv {
     caca_canvas_t  *canvas;
     caca_display_t *display;

video/out/vo_direct3d.c

@@ -40,6 +40,11 @@
 #include "w32_common.h"
 #include "sub/osd.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 // shaders generated by fxc.exe from d3d_shader_yuv.hlsl
 #include "d3d_shader_420p.h"
 

video/out/x11_common.h

@@ -29,6 +29,11 @@
 
 #include "common/common.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 struct vo;
 struct mp_log;
 

video/vdpau.h

@@ -12,6 +12,11 @@
 #include "common/msg.h"
 #include "hwdec.h"
 
+#include "config.h"
+#if !HAVE_GPL
+#error GPL only
+#endif
+
 #define CHECK_VDP_ERROR_ST(ctx, message, statement) \
     do { \
         if (vdp_st != VDP_STATUS_OK) { \