Add missing patches

+https://bugs.gentoo.org/724412
+--- a/configure.ac
++++ b/configure.ac
+@@ -18,6 +18,7 @@ AC_PROG_CPP
+ AC_PROG_CXX
+ AC_PROG_INSTALL
+ AC_PROG_RANLIB
++AM_PROG_AR
+ 
+ dnl Some needed libaries for OS2
+ dnl perharps join this with the other target depended checks. move them upwards

+Bug: https://bugs.gentoo.org/895898
+--- a/src/gui/render_templates_sai.h
++++ b/src/gui/render_templates_sai.h
+@@ -43,7 +43,7 @@ inline void conc2d(Super2xSaI,SBPP)(PTYPE * line0, PTYPE * line1, const PTYPE *
+ 	} else if (C4 == C8 && C7 != C5) {
+ 		line1[1] = line0[1] = C4;
+ 	} else if (C4 == C8 && C7 == C5) {
+-		register int r = 0;
++		int r = 0;
+ 		r += conc2d(GetResult,SBPP)(C5,C4,C6,D1);
+ 		r += conc2d(GetResult,SBPP)(C5,C4,C3,C1);
+ 		r += conc2d(GetResult,SBPP)(C5,C4,D2,D5);
+@@ -127,7 +127,7 @@ inline void conc2d(SuperEagle,SBPP)(PTYPE * line0, PTYPE * line1, const PTYPE *
+ 				line1[0] = interp_w2(C7,C8,1U,1U);
+ 			}
+ 		} else {
+-			register int r = 0;
++			int r = 0;
+ 			r += conc2d(GetResult,SBPP)(C5,C4,C6,D1);
+ 			r += conc2d(GetResult,SBPP)(C5,C4,C3,C1);
+ 			r += conc2d(GetResult,SBPP)(C5,C4,D2,D5);
+@@ -185,7 +185,7 @@ inline void conc2d(_2xSaI,SBPP)(PTYPE * line0, PTYPE * line1, const PTYPE * fc)
+ 			line1[0] = C4;
+ 			line1[1] = C4;
+ 		} else {
+-			register int r = 0;
++			int r = 0;
+ 			r += conc2d(GetResult,SBPP)(C4,C5,C3,C1);
+ 			r -= conc2d(GetResult,SBPP)(C5,C4,D4,C2);
+ 			r -= conc2d(GetResult,SBPP)(C5,C4,C6,D1);

+https://github.com/voyageur/openglide/pull/25
+
+diff -Naur dosbox.orig/configure.ac dosbox/configure.ac
+--- dosbox.orig/configure.ac	2021-10-26 13:06:35.585761330 +0100
++++ dosbox/configure.ac	2021-10-26 13:07:31.641323631 +0100
+@@ -20,6 +20,12 @@
+ AC_PROG_RANLIB
+ AM_PROG_AR
+
++dnl The dlopen() function is in the C library for *BSD and in
++dnl libdl on GLIBC-based systems
++AC_SEARCH_LIBS([dlopen], [dl dld], [], [
++  AC_MSG_ERROR([unable to find the dlopen() function])
++])
++
+ dnl Some needed libaries for OS2
+ dnl perharps join this with the other target depended checks. move them upwards
+ if test x$host = xi386-pc-os2-emx ; then