crosstool-ng: patches/uClibc/0.9.29/160-custom-ISA.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 -dur uClibc-0.9.29.orig/extra/Configs/Config.mips uClibc-0.9.29/extra/Configs/Config.mips

     2 --- uClibc-0.9.29.orig/extra/Configs/Config.mips	2007-03-16 20:38:14.000000000 +0100

     3 +++ uClibc-0.9.29/extra/Configs/Config.mips	2007-05-22 19:30:43.000000000 +0200

     4 @@ -71,4 +71,16 @@

     5  config CONFIG_MIPS_ISA_MIPS64

     6  	bool "MIPS64"

     8 +config CONFIG_MIPS_ISA_CUSTOM

     9 +	bool "Custom"

    10 +

    11  endchoice

    12 +

    13 +config CONFIG_MIPS_CPU_CFLAGS_CUSTOM

    14 +	string

    15 +	prompt "Custon ISA"

    16 +	depends on CONFIG_MIPS_ISA_CUSTOM

    17 +	default ""

    18 +	help

    19 +	  Enter your custom ISA here (eg: lx4189!).

    20 +

    21 diff -dur uClibc-0.9.29.orig/Rules.mak uClibc-0.9.29/Rules.mak

    22 --- uClibc-0.9.29.orig/Rules.mak	2007-04-17 15:34:11.000000000 +0200

    23 +++ uClibc-0.9.29/Rules.mak	2007-05-22 19:31:48.000000000 +0200

    24 @@ -234,6 +234,7 @@

    25  	CPU_CFLAGS-$(CONFIG_MIPS_N64_ABI)+=-mabi=64

    26  	CPU_CFLAGS-$(CONFIG_MIPS_O32_ABI)+=-mabi=32

    27  	CPU_CFLAGS-$(CONFIG_MIPS_N32_ABI)+=-mabi=n32

    28 +	CPU_CFLAGS-$(CONFIG_MIPS_ISA_CUSTOM)+=-march=$(CONFIG_MIPS_CPU_CFLAGS_CUSTOM)

    29  endif

    31  ifeq ($(TARGET_ARCH),nios)

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 118	264aa721d2a4
permissions	-rw-r--r--