modplug: add patch to remove the deprecated `register` keyword

python/build/libs.py

@@ -111,6 +111,7 @@ libmodplug = AutotoolsProject(
     [
         '--disable-shared', '--enable-static',
     ],
+    patches='src/lib/modplug/patches',
 )
 
 libopenmpt = AutotoolsProject(

src/lib/modplug/patches/no_register

@@ -0,0 +1,22 @@
+Index: libmodplug-0.8.9.0/src/fastmix.cpp
+===================================================================
+--- libmodplug-0.8.9.0.orig/src/fastmix.cpp
++++ libmodplug-0.8.9.0/src/fastmix.cpp
+@@ -288,7 +288,7 @@ CzWINDOWEDFIR sfir;
+ // MIXING MACROS
+ // ----------------------------------------------------------------------------
+ #define SNDMIX_BEGINSAMPLELOOP8\
+-	register MODCHANNEL * const pChn = pChannel;\
++	MODCHANNEL * const pChn = pChannel;\
+ 	nPos = pChn->nPosLo;\
+ 	const signed char *p = (signed char *)(pChn->pCurrentSample+pChn->nPos);\
+ 	if (pChn->dwFlags & CHN_STEREO) p += pChn->nPos;\
+@@ -296,7 +296,7 @@ CzWINDOWEDFIR sfir;
+ 	do {
+ 
+ #define SNDMIX_BEGINSAMPLELOOP16\
+-	register MODCHANNEL * const pChn = pChannel;\
++	MODCHANNEL * const pChn = pChannel;\
+ 	nPos = pChn->nPosLo;\
+ 	const signed short *p = (signed short *)(pChn->pCurrentSample+(pChn->nPos*2));\
+ 	if (pChn->dwFlags & CHN_STEREO) p += pChn->nPos;\

src/lib/modplug/patches/series

@@ -0,0 +1 @@
+no_register