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Makefiles: Fix CC variable override.

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The CC override in commit f42b2d4bbf
caused the built-in value to be used instead of the configured value
when it wasn't being overridden.

The behaviour is explained here:
	http://stackoverflow.com/questions/18007326/how-to-change-default-values-of-variables-like-cc-in-makefile
This commit is contained in:
Alasdair G Kergon 2013-09-16 19:57:14 +01:00
parent 97ba18f4cb
commit 36c5bb40a2
2 changed files with 12 additions and 0 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.101 -
===================================
Fix CC Makefile override which had reverted to using built-in value. (2.02.75)
Recognise bcache block devices in filter (experimental).
Run lvm2-activation-net after lvm2-activation service to prevent parallel run.
Add man page entries for lvmdump's -u and -l options.

11
make.tmpl.in
View File

@ -17,7 +17,18 @@ SHELL = /bin/sh
@SET_MAKE@
# Allow environment to override any built-in default value for CC.
# If there is a built-in default, CC is NOT set to @CC@ here.
CC ?= @CC@
# If $(CC) holds the usual built-in default value of 'cc' then replace it with
# the configured value.
# (To avoid this and force the use of 'cc' from the environment, supply its
# full path.)
ifeq ($(CC), cc)
CC = @CC@
endif
RANLIB = @RANLIB@
INSTALL = @INSTALL@
MKDIR_P = @MKDIR_P@