fix many compilation warnings about static variables used by non-static functions

[CC] plc_main.c -> plc_main.o
/tmp/be/build/plc_main.c:396:40: warning: ?LogBuff? is static but used in inline function ?copy_from_log? which is not static
memcpy((char*)buf + remaining, LogBuff[level], size - remaining);
^
/tmp/be/build/plc_main.c:395:22: warning: ?LogBuff? is static but used in inline function ?copy_from_log? which is not static
memcpy(buf, &LogBuff[level][buffpos], remaining);
^
...

^
/tmp/be/build/plc_debugger.c:825:20: warning: ?retain_offset? is static but used in inline function ?BufferIterator? which is not static
Retain(retain_offset, size, real_value_p);
^
/tmp/be/build/plc_debugger.c:823:47: warning: ?retain_offset? is static but used in inline function ?BufferIterator? which is not static
unsigned int next_retain_offset = retain_offset + size;
^
^

     1

#! gmake

     2

     3

yml := ../../yml2

     4

ysl2files := $(wildcard *.ysl2)

     5

xsltfiles := $(patsubst %.ysl2, %.xslt, $(ysl2files))

     6

     7

all:$(xsltfiles)

     8

     9

%.xslt: %.ysl2

    10

	$(yml)/yml2c -I $(yml) $< -o $@.tmp

    11

	xmlstarlet fo $@.tmp > $@

    12

	rm $@.tmp

    13

    14

clean:

    15

	rm -f $(xsltfiles)