fix wrong usage of TARGET_xxx macros

They are for make targets, i.e. file dependent flags
not for target architecture dependent flags.

configure/os/CONFIG.Common.RHEL8-x86_64

@@ -9,8 +9,8 @@ STD_CXXFLAGS = -std=c++20
 
 # Fix bug in gcc-toolset-11 calling the old assembler
 ifneq ($(filter %-11,$(TOOLSET)),)
-TARGET_CPPFLAGS += $(TOOLSET_DIR:%=-B$(SYSROOT)%/bin)
-TARGET_LDFLAGS  += $(TOOLSET_DIR:%=-B$(SYSROOT)%/bin)
+CPPFLAGS += $(TOOLSET_DIR:%=-B$(SYSROOT)%/bin)
+LDFLAGS  += $(TOOLSET_DIR:%=-B$(SYSROOT)%/bin)
 endif
 
 ifneq (($(TOOLSET)),)

configure/os/CONFIG.Common.RHEL9-x86_64

@@ -9,8 +9,8 @@ STD_CXXFLAGS = -std=c++20
 
 # Fix bug in gcc-toolset-11 calling the old assembler
 ifneq ($(filter %-11,$(TOOLSET)),)
-TARGET_CPPFLAGS += $(TOOLSET_DIR:%=-B$(SYSROOT)%/bin)
-TARGET_LDFLAGS  += $(TOOLSET_DIR:%=-B$(SYSROOT)%/bin)
+CPPFLAGS += $(TOOLSET_DIR:%=-B$(SYSROOT)%/bin)
+LDFLAGS  += $(TOOLSET_DIR:%=-B$(SYSROOT)%/bin)
 endif
 
 ifneq (($(TOOLSET)),)

configure/os/CONFIG.RHEL9-x86_64.RHEL8-x86_64

@@ -14,7 +14,7 @@ SYSROOT = /opt/RHEL8
 # But linker gets confused with LD_LIBRARY_PATH.
 # Thus only wrap the compiler.
 WRAPPER = -wrapper env,LD_LIBRARY_PATH=$(TOOLSET_DIR:%=$(SYSROOT)%/usr/lib64:)/usr/lib64:$(SYSROOT)/usr/lib64
-TARGET_CPPFLAGS += $(WRAPPER)
+CPPFLAGS += $(WRAPPER)
 
 # These programs as cross tools would also need LD_LIBRARY_PATH.
 # But but our host versions work just fine.

configure/os/CONFIG_SITE.Common.linuxCommon

@@ -15,8 +15,8 @@ STD_CXXFLAGS = -std=c++11
 
 TOOLSET_DIR      = $(TOOLSET:%=$(TOOLSET_LOCATION)/%/root)
 GNU_DIR = $(SYSROOT)$(TOOLSET_DIR)
-TARGET_CPPFLAGS += $(SYSROOT:%=--sysroot=%)
-TARGET_LDFLAGS  += $(SYSROOT:%=--sysroot=%)
+CPPFLAGS += $(SYSROOT:%=--sysroot=%)
+LDFLAGS  += $(SYSROOT:%=--sysroot=%)
 
 # backward compatibility: Keep unversioned libs
 # in order to prevent dynamic linking problems