More i386 and -m32 fixes for compiling meterpreter

This should be the last change necessary to compile a 32-bit meterpreter
from a 64-bit build host.

See rapid7#6268

Author: egypt

external/source/meterpreter/source/bionic/libc/out/x86/make.sh

@@ -11,7 +11,7 @@ for i in $BAD_FILES ; do
 	rm flood/$i >/dev/null
 done
 
-gcc -Wl,--hash-style=sysv -nostdinc -nostdlib -shared -o libbionic.so flood/*.o -lgcc
+gcc -Wl,--hash-style=sysv -nostdinc -nostdlib -shared -o libbionic.so flood/*.o -lgcc -march=i386 -m32
 
 [ ! -f libc.so ] && ln -s ${PWD}/libbionic.so libc.so
 

external/source/meterpreter/source/server/rtld/Makefile

@@ -17,7 +17,7 @@ msflinker: $(OBJ)
 	strip msflinker
 
 msflinker.bin: msflinker elf2bin.c
-	gcc -o elf2bin elf2bin.c
+	gcc -march=i386 -m32 -o elf2bin elf2bin.c
 	./elf2bin msflinker msflinker.bin
 
 libc.h: ../../bionic/compiled/libc.so
@@ -51,7 +51,7 @@ libpcap.h: ../../bionic/compiled/libpcap.so
 metsrv_rtld.o: libc.h libm.h libcrypto.h libssl.h libmetsrv_main.h libsupport.h libpcap.h
 
 rtldtest: rtldtest.c msflinker
-	gcc -o rtldtest rtldtest.c -DEP=`objdump -f msflinker | grep start | awk '{ print $$3 }'`
+	gcc -march=i386 -m32 -o rtldtest rtldtest.c -DEP=`objdump -f msflinker | grep start | awk '{ print $$3 }'`
 
 .s.o:
 	gcc $(CFLAGS) -c $<