crosstool-ng: patches/gcc/4.0.4/180-sdk-libstdc++-includes.patch@ff2181adbd28

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>

     1 diff -urN gcc-4.0.0-100/libstdc++-v3/fragment.am gcc-4.0.0/libstdc++-v3/fragment.am

     2 --- gcc-4.0.0-100/libstdc++-v3/fragment.am	2004-10-25 15:32:40.000000000 -0500

     3 +++ gcc-4.0.0/libstdc++-v3/fragment.am	2005-04-28 21:48:43.000000000 -0500

     4 @@ -18,5 +18,5 @@

     5  	$(WARN_FLAGS) $(WERROR) -fdiagnostics-show-location=once

     7  # -I/-D flags to pass when compiling.

     8 -AM_CPPFLAGS = $(GLIBCXX_INCLUDES)

     9 +AM_CPPFLAGS = $(GLIBCXX_INCLUDES) -I$(toplevel_srcdir)/include

    11 diff -urN gcc-4.0.0-100/libstdc++-v3/libmath/Makefile.am gcc-4.0.0/libstdc++-v3/libmath/Makefile.am

    12 --- gcc-4.0.0-100/libstdc++-v3/libmath/Makefile.am	2003-08-27 16:29:42.000000000 -0500

    13 +++ gcc-4.0.0/libstdc++-v3/libmath/Makefile.am	2005-04-28 21:48:43.000000000 -0500

    14 @@ -32,7 +32,7 @@

    16  libmath_la_SOURCES = stubs.c

    18 -AM_CPPFLAGS = $(CANADIAN_INCLUDES)

    19 +AM_CPPFLAGS = $(CANADIAN_INCLUDES) -I$(toplevel_srcdir)/include

    21  # Only compiling "C" sources in this directory.

    22  LIBTOOL = @LIBTOOL@ --tag CC

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Sep 12 23:51:25 2010 +0200 (2010-09-12)
changeset 2123	ff2181adbd28
parent 1	eeea35fbf182
permissions	-rw-r--r--