Restore original intention of CPPFLAGS (preprocessor) and CFLAGS (compiler)

gen_compile.sh

@@ -427,8 +427,8 @@ compile_lvm() {
 		apply_patches lvm ${LVM_VER}
 		print_info 1 'lvm: >> Configuring...'
 			LDFLAGS="-L${TEMP}/device-mapper/lib" \
-			CFLAGS="-fPIC -I${TEMP}/device-mapper/include" \
-			CPPFLAGS="-fPIC -I${TEMP}/device-mapper/include" \
+			CFLAGS="-fPIC" \
+			CPPFLAGS="-I${TEMP}/device-mapper/include" \
 			./configure --enable-static_link --prefix=${TEMP}/lvm \
 				--with-lvm1=none --with-clvmd=none --with-cluster=none \
 				--disable-readline --disable-selinux --with-mirrors=none \
@@ -510,7 +510,6 @@ compile_device_mapper() {
 			gen_die "device-mapper directory ${DEVICE_MAPPER_DIR} invalid"
 		cd "${DEVICE_MAPPER_DIR}"
 		CFLAGS="-fPIC" \
-		CPPFLAGS="-fPIC" \
 		./configure --prefix=${TEMP}/device-mapper --enable-static_link \
 			--disable-selinux >> ${LOGFILE} 2>&1 ||
 			gen_die 'Configuring device-mapper failed!'