patches/gcc/4.1.2/150-c99-snprintf.patch
author |
"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> |
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Sun Sep 12 23:51:25 2010 +0200 (2010-09-12) |
changeset 2123 |
ff2181adbd28 |
parent 13 |
068dce39f687
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permissions |
-rw-r--r-- |
cc/gcc: disable complibs if not selected
Force gcc to not link with some companion libraries when
there are not needed (because selected-out).
There is no option to tell gcc *not* to build the Graphite and/or
LTO stuff. They *will* be built if gcc finds the suitable companion
libraries. If we do not provide them, but the host has them, then
gcc *will* find them, and link with them.
Consider the following:
- host has suitable PPL and CLooG (eg. Debian Squeeze)
- user wants to build gcc>=4.4
- user de-selects GRAPHITE
- gcc will find the hosts PPL and CLooG, and will use them
- the user moves the toolchain to an older host that does
not have them (eg. Debian Lenny)
- the toolchain fails, when it was properly setup not to
So, explicitly tell gcc *not* to use unneeded companion libs.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
yann@13
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--- gcc-4.1.2.orig/libstdc++-v3/include/c_std/std_cstdio.h 2005-10-30 23:21:50.000000000 +0100
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yann@13
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+++ gcc-4.1.2/libstdc++-v3/include/c_std/std_cstdio.h 2007-03-04 23:33:27.000000000 +0100
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@@ -143,7 +143,7 @@
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yann@1
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using ::vsprintf;
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yann@1
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}
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yann@1
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yann@1
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-#if _GLIBCXX_USE_C99
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+#if _GLIBCXX_USE_C99 || defined(__UCLIBC__)
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#undef snprintf
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#undef vfscanf
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