package/musepack: fix incompatible pointer types

As of GCC14, GCC no longer allows implicitly casting all pointer types
to all other pointer types.

We can fix this error, by adding the appropriate cast.
This patch is a port of a Gentoo patch.

Link: https://gitweb.gentoo.org/repo/gentoo.git/tree/media-sound/musepack-tools/files/musepack-tools-495-incompatible-pointers.patch

Fixes:

    https://autobuild.buildroot.org/results/6412fc37d533dff27f18b09c668870bebff2bec5/

Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>
(cherry picked from commit fc827edb6585d77ad8d866953af2f649c8e1e1a8)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>

package/musepack/0006-incompatible-pointers.patch

@@ -0,0 +1,47 @@
+Fixed incompatible pointer types
+
+This is due to GCC14 that no longer allows implicitly casting all pointer types
+to all other pointer types. Resulting in error such as :
+
+output/build/musepack-475/libmpcpsy/ans.c:291:120: error: passing argument 10 of ‘FindOptimalANS’ from incompatible pointer type [-Wincompatible-pointer-types]
+  291 | L, ANSspec_M, m->NS_Order_L, m->SNR_comp_L, m->FIR_L, smr.L, smr.M, m->SCF_Index_L, Transient );
+      |                                                                     ~^~~~~~~~~~~~~
+      |                                                                      |
+      |                                                                      int *
+
+Patch downloaded from Gentoo:
+https://gitweb.gentoo.org/repo/gentoo.git/tree/media-sound/musepack-tools/files/musepack-tools-495-incompatible-pointers.patch
+
+Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
+Upstream: N/A no SCM, not active anymore
+
+--- musepack-tools-495/libmpcpsy/ans.c
++++ musepack-tools-495-fixed/libmpcpsy/ans.c
+@@ -287,12 +287,12 @@
+     // for L or M, respectively
+     memset ( m->FIR_L,      0, sizeof m->FIR_L      );         // reset FIR
+     memset ( m->NS_Order_L, 0, sizeof m->NS_Order_L );         // reset Flags
+-	FindOptimalANS ( MaxBand, MSflag, ANSspec_L, ANSspec_M, m->NS_Order_L, m->SNR_comp_L, m->FIR_L, smr.L, smr.M, m->SCF_Index_L, Transient );
++	FindOptimalANS ( MaxBand, MSflag, ANSspec_L, ANSspec_M, m->NS_Order_L, m->SNR_comp_L, m->FIR_L, smr.L, smr.M, (const void*)m->SCF_Index_L, Transient );
+ 
+     // for R or S, respectively
+ 	memset ( m->FIR_R,      0, sizeof m->FIR_R      );         // reset FIR
+ 	memset ( m->NS_Order_R, 0, sizeof m->NS_Order_R );         // reset Flags
+-	FindOptimalANS ( MaxBand, MSflag, ANSspec_R, ANSspec_S, m->NS_Order_R, m->SNR_comp_R, m->FIR_R, smr.R, smr.S, m->SCF_Index_R, Transient );
++	FindOptimalANS ( MaxBand, MSflag, ANSspec_R, ANSspec_S, m->NS_Order_R, m->SNR_comp_R, m->FIR_R, smr.R, smr.S, (const void*)m->SCF_Index_R, Transient );
+ 
+     return;
+ }
+--- musepack-tools-495/mpcenc/mpcenc.h
++++ musepack-tools-495-fixed/mpcenc/mpcenc.h
+@@ -241,8 +241,8 @@
+ 
+ float  ISNR_Schaetzer                  ( const float* samples, const float comp, const int res);
+ float  ISNR_Schaetzer_Trans            ( const float* samples, const float comp, const int res);
+-void   QuantizeSubband                 ( unsigned int* qu_output, const float* input, const int res, float* errors, const int maxNsOrder );
+-void   QuantizeSubbandWithNoiseShaping ( unsigned int* qu_output, const float* input, const int res, float* errors, const float* FIR );
++void   QuantizeSubband                 ( mpc_int16_t* qu_output, const float* input, const int res, float* errors, const int maxNsOrder );
++void   QuantizeSubbandWithNoiseShaping ( mpc_int16_t* qu_output, const float* input, const int res, float* errors, const float* FIR );
+ 
+ void   NoiseInjectionComp ( void );
+