net/drawterm: fix build on powerpc*

arch=`uname -m|sed 's/i.86/386/;s/Power Macintosh/power/; s/x86_64/amd64/'`;  (cd posix-$arch &&  make)
cd: posix-powerpc: No such file or directory
*** Error code 2

net/drawterm/files/patch-Make.freebsd

@@ -1,22 +1,9 @@
---- Make.freebsd.orig	2023-11-18 06:48:07 UTC
+--- Make.freebsd.orig	2023-09-03 17:22:52 UTC
 +++ Make.freebsd
-@@ -1,16 +1,12 @@
- # OpenBSD
- PTHREAD=-pthread
--AR=ar
--AS=as
- RANLIB=ranlib
--X11=/usr/local
--CC=clang
--CFLAGS=-Wall -Wno-missing-braces -ggdb -I$(ROOT) -I$(ROOT)/include -I$(ROOT)/kern -c -I$(X11)/include -D_THREAD_SAFE $(PTHREAD) -O2
-+CFLAGS+=-Wall -Wno-missing-braces -ggdb -I$(ROOT) -I$(ROOT)/include -I$(ROOT)/kern -c -I$(X11)/include -D_THREAD_SAFE $(PTHREAD) -O2
- O=o
- OS=posix
- GUI=x11
--LDADD=-L$(X11)/lib64 -L$(X11)/lib -lX11 -ggdb
--LDFLAGS=$(PTHREAD)
-+LDADD=-lX11 -ggdb
-+LDFLAGS+=$(PTHREAD)
- TARG=drawterm
- AUDIO=unix
+@@ -17,5 +17,5 @@ libmachdep.a:
+ all: default
 
+ libmachdep.a:
+-	arch=`uname -m|sed 's/i.86/386/;s/Power Macintosh/power/; s/x86_64/amd64/'`; \
++	arch=`uname -m|sed 's/i.86/386/;s/powerpc.*/power/; s/x86_64/amd64/'`; \
+ 	(cd posix-$$arch &&  make)

net/drawterm/files/patch-posix-power_Makefile

@@ -0,0 +1,11 @@
+--- posix-power/Makefile.orig	2023-09-03 17:22:52 UTC
++++ posix-power/Makefile
+@@ -2,8 +2,6 @@ LIB=../libmachdep.a
+ include ../Make.config
+ LIB=../libmachdep.a
+
+-CFLAGS+= -Wa,-mregnames
+-
+ OFILES=\
+ 	getcallerpc.$O\
+ 	tas.$O

net/drawterm/files/patch-posix-power_tas.c

@@ -0,0 +1,27 @@
+--- posix-power/tas.c.orig	2024-01-26 17:52:14 UTC
++++ posix-power/tas.c
+@@ -15,16 +15,16 @@ tas(int *x)
+ 	 * r4 (x) and r5 (temp).
+ 	 */
+ 	__asm__("\n	sync\n"
+-	"	li	r0,0\n"
+-	"	mr	r4,%1		/* &l->val */\n"
+-	"	lis	r5,0xdead	/* assemble constant 0xdeaddead */\n"
+-	"	ori	r5,r5,0xdead	/* \" */\n"
++	"	li	0,0\n"
++	"	mr	4,%1		/* &l->val */\n"
++	"	lis	5,0xdead	/* assemble constant 0xdeaddead */\n"
++	"	ori	5,5,0xdead	/* \" */\n"
+ 	"tas1:\n"
+-	"	dcbf	r4,r0	/* cache flush; \"fix for 603x bug\" */\n"
+-	"	lwarx	%0,r4,r0	/* v = l->val with reservation */\n"
+-	"	cmp	cr0,0,%0,r0	/* v == 0 */\n"
++	"	dcbf	4,0	/* cache flush; \"fix for 603x bug\" */\n"
++	"	lwarx	%0,4,0	/* v = l->val with reservation */\n"
++	"	cmp	cr0,0,%0,0	/* v == 0 */\n"
+ 	"	bne	tas0\n"
+-	"	stwcx.	r5,r4,r0   /* if (l->val same) l->val = 0xdeaddead */\n"
++	"	stwcx.	5,4,0   /* if (l->val same) l->val = 0xdeaddead */\n"
+ 	"	bne	tas1\n"
+ 	"tas0:\n"
+ 	"	sync\n"