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Message-Id: <11846813433593-git-send-email-sam@ravnborg.org> Date: Tue, 17 Jul 2007 16:08:33 +0200 From: Sam Ravnborg <sam@...nborg.org> To: linux-kernel@...r.kernel.org Cc: Sam Ravnborg <sam@...nborg.org> Subject: [PATCH 04/33] kbuild: document cc-fullversion Signed-off-by: Sam Ravnborg <sam@...nborg.org> --- 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..e08ef87 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 useful 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 + to the user why it stops. === 4 Host Program support -- 1.5.0.6 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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