crosstool-ng: patches/cygwin/1.5.15-1/100-crossbuild.patch@364b06df9e3a

glibc: Refactor startfiles/headers into do_libc_backend()

Refactor the contents of 'do_libc_start_files()' and 'do_libc()' into a
parameterized 'do_libc_backend()'. 'do_libc_start_files()' and 'do_libc()'
call 'do_libc_backend()' with either 'libc_mode=startfiles' or
'libc_mode=final' (respectively) so that the startfiles/headers and
the final libc builds are configured and built with the same options.

One example of where this is needed is when building a mips toolchain.
Previously, if you were building an n32 toolchain, you wouldn't have
noticed an issue, because if '-mabi' is not in CFLAGS, n32 is the
default:

http://sourceware.org/git/?p=glibc-ports.git;a=blob;f=sysdeps/mips/preconfigure;hb=HEAD

But when trying to build an o32 or n64 toolchain the build would
have failed. This is because (e)glibc expects "-mabi={o32,n32,n64}" to be
in CFLAGS, but was not previously provided in 'do_libc_start_files()'.
The build failure would happen in the shared-core gcc when it tries to
configure an n64 or o32 gcc with an n32 libc.

A simpler solution would have been to just add TARGET_CFLAGS to configure
in 'do_libc_start_files()', but this way makes configure and make
consistent for both steps.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>

     1 Message-ID: <4269173F.7020705@zee2.com>

     2 Date: Fri, 22 Apr 2005 16:24:47 +0100

     3 From: Steve Papacharalambous <stevep@zee2.com>

     4 To: "Robert P. J. Day" <rpjday@mindspring.com>

     5 CC: crossgcc list <crossgcc@sources.redhat.com>

     6 Subject: Re: cygwin source directory has moved

     7 In-Reply-To: <Pine.LNX.4.61.0504181746050.11794@localhost.localdomain>

     9 Hi Robert,

    11 I've attached two patches:

    13 1/  For crosstool-0.31 which changes the CYGWIN_URL to one which has the

    14 cygwin source archives.  The version of cygwin that is used to build the

    15 cross toolchain has been changed to cygwin-1.5.15-1-src.tar.bz2 since

    16 most of the mirror sites don't seem to have the original archive used.

    17 [created gcc-3.3.2-cygwin-1.5.15-1.dat - dank]

    20 2/ The later cygwin source archive fails to cross build with the error:

    21 /opt/crosstool/i686-pc-cygwin/gcc-3.3.2-cygwin-1.5.15-1/lib/gcc-lib/i686-pc-cygwin/bin/ld:

    22 cannot find -luser32

    24 unless the second patch is applied,

    27 diff -uNr cygwin-1.5.15-1.orig/winsup/mingw/Makefile.in cygwin-1.5.15-1/winsup/mingw/Makefile.in

    28 --- cygwin-1.5.15-1.orig/winsup/mingw/Makefile.in	2005-02-28 22:51:02.000000000 +0000

    29 +++ cygwin-1.5.15-1/winsup/mingw/Makefile.in	2005-04-22 15:29:18.000000000 +0100

    30 @@ -71,7 +71,7 @@

    31  mkinstalldirs = $(SHELL) @MKINSTALLDIRS@

    33  CC := @CC@

    34 -override CC := ${filter-out -L% -B%,${shell echo $(CC) | sed -e 's%\(-isystem\|-iwithprefixbefore\)  *[^ ]*\( \|$$\)% %g'}}

    35 +override CC := ${filter-out -B%,${shell echo $(CC) | sed -e 's%\(-isystem\|-iwithprefixbefore\)  *[^ ]*\( \|$$\)% %g'}}

    36  # FIXME: Which is it, CC or CC_FOR_TARGET?

    37  CC_FOR_TARGET = $(CC)

    38  AS_FOR_TARGET = $(AS)

author	Bryan Hundven <bryanhundven@gmail.com>
	Sun Jun 26 03:26:54 2011 -0700 (2011-06-26)
changeset 2515	364b06df9e3a
parent 402	197e1b49586e
permissions	-rw-r--r--