Minor Makefile cleanup. Do not use Makefile variables named 'version' and

'target'. Latter is problematic in particular as apparently FreeBSD's
bsd.prog.mk re-defines it under some circumstances. This causes an
unexpected failures like -dumpmachine not working for cc while working
fine for c++.

Do not re-define IN_GCC in multipe places, it gets inherited from
Makefile.in anyway.

PR:		gnu/110143
Submitted by:	usleepless at gmail

gnu/usr.bin/cc/Makefile.fe

@@ -2,14 +2,14 @@
 
 #	Front-end-only bits
 
-version!=	sed -n /version_string/p ${GCCDIR}/version.c | sed -e 's/.*\"\([^ \"]*\)[ \"].*/\1/'
+GCC_VERSION!=	sed -n /version_string/p ${GCCDIR}/version.c | sed -e 's/.*\"\([^ \"]*\)[ \"].*/\1/'
 
 #
 # These were previously defined in gcc.c.  Just copy previous values from
 # there. We ifdef most of them out for FREEBSD_NATIVE builds anyway.
 # gcc.c won't compile without them though.
 DRIVER_DEFINES = \
-	-DDEFAULT_TARGET_VERSION=\"$(version)\" \
-	-DDEFAULT_TARGET_MACHINE=\"$(target)\" \
+	-DDEFAULT_TARGET_VERSION=\"$(GCC_VERSION)\" \
+	-DDEFAULT_TARGET_MACHINE=\"$(GCC_TARGET)\" \
 
 CFLAGS+= ${DRIVER_DEFINES}

gnu/usr.bin/cc/Makefile.inc

@@ -16,7 +16,7 @@ MD_FILE=	../cc_tools/arm-diked.md
 .else
 MD_FILE=	${GCCDIR}/config/${GCC_CPU}/${GCC_CPU}.md
 .endif
-target=		${TARGET_ARCH}-undermydesk-freebsd
+GCC_TARGET=	${TARGET_ARCH}-undermydesk-freebsd
 
 CFLAGS+=	-DIN_GCC -DHAVE_CONFIG_H
 CFLAGS+=	-DPREFIX=\"${TOOLS_PREFIX}/usr\"

gnu/usr.bin/cc/c++filt/Makefile

@@ -1,6 +1,7 @@
 # $FreeBSD$
 
 .include "../Makefile.inc"
+.include "../Makefile.fe"
 
 .PATH: ${GCCDIR}
 
@@ -8,7 +9,7 @@ PROG=	c++filt
 SRCS=	cp-demangle.c
 NO_MAN=
 
-CFLAGS+= -DSTANDALONE_DEMANGLER -DIN_GCC -DVERSION=\"$(version)\"
+CFLAGS+= -DSTANDALONE_DEMANGLER -DVERSION=\"$(GCC_VERSION)\"
 
 DPADD=	${LIBCC_INT}
 LDADD=	${LIBCC_INT}

gnu/usr.bin/cc/cc_int/Makefile

@@ -78,7 +78,7 @@ insn-$F.c: ${.OBJDIR}/../cc_tools/gen$F
 .endfor
 
 CFLAGS+=	-DHAVE_CONFIG_H
-CFLAGS+=	-DTARGET_NAME=\"${target}\" -DIN_GCC
+CFLAGS+=	-DTARGET_NAME=\"${GCC_TARGET}\"
 
 .if ${TARGET_ARCH} == "arm" && defined(TARGET_BIG_ENDIAN)
 CFLAGS += -DTARGET_ENDIAN_DEFAULT=ARM_FLAG_BIG_END
@@ -88,6 +88,6 @@ CFLAGS += -DTARGET_ENDIAN_DEFAULT=ARM_FLAG_BIG_END
 # pollute compiler command line for all other files.
 c-pch.o: c-pch.c
 	${CC} ${CFLAGS} -DHOST_MACHINE=\"${host}\" \
-		 -DTARGET_MACHINE=\"${target}\" -c ${.IMPSRC}
+		 -DTARGET_MACHINE=\"${GCC_TARGET}\" -c ${.IMPSRC}
 
 .include <bsd.lib.mk>

gnu/usr.bin/cc/f77/Makefile

@@ -8,8 +8,6 @@
 PROG=	f77
 SRCS=	gcc.c g77spec.c
 
-CFLAGS+= -DDEFAULT_TARGET_VERSION=\"$(version)\"
-CFLAGS+= -DDEFAULT_TARGET_MACHINE=\"$(target)\"
 CFLAGS+= -DFORTRAN_INIT=\"-lg2c\" -DFORTRAN_INIT_PROFILE=\"-lg2c_p\"
 
 DPADD=	${LIBCC_INT}