Subject: [PATCH 05/19] kbuild: document cc-fullversion
From: Sam Ravnborg <[EMAIL PROTECTED]>
Date: Mon, 28 May 2007 22:26:55 +0200
Signed-off-by: Sam Ravnborg <[EMAIL PROTECTED]>
---
Documentation/kbuild/makefiles.txt | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/Documentation/kbuild/makefiles.txt
b/Documentation/kbuild/makefiles.txt
index bb5306e..c6d9a35 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -501,6 +501,20 @@ more details, with real examples.
The third parameter may be a text as in this example, but it may also
be an expanded variable or a macro.
+ cc-fullversion
+ cc-fullversion is usefull when the exact version of gcc is needed.
+ One typical use-case is when a specific GCC version is broken.
+ cc-fullversion points out a more specific version than cc-version does.
+
+ Example:
+ #arch/powerpc/Makefile
+ $(Q)if test "$(call cc-fullversion)" = "040200" ; then \
+ echo -n '*** GCC-4.2.0 cannot compile the 64-bit
powerpc ' ; \
+ false ; \
+ fi
+
+ In this example for a specific GCC version the build will error out
explaining
+ the user why it stops.
=== 4 Host Program support
--
1.5.1.rc3.1544.g8a923
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