config/companion_libs/mpfr.in
| author |
Bryan Hundven <bryanhundven@gmail.com> |
|
Sun Jun 26 03:26:54 2011 -0700 (2011-06-26) |
| changeset 2515 |
364b06df9e3a |
| parent 1978 |
fbee95d8182b
|
| child 2756 |
3976adc582fb |
| permissions |
-rw-r--r-- |
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>