kumquat-buildroot/package/glibc/Config.in
Thomas Petazzoni 0af371be3a glibc: disable build of glibc 2.22 with gcc 6.x
glibc-2.22 does not build with gcc 6.x. The first issues can be fixed
by:

 - Using the same 0004-gcc6.patch as we're using with glibc 2.23 since
   Buildroot commit ab8de336eb.

 - Backport glibc commit 5542236837c5c41435f8282ec92799f480c36f18 to fix
   strchr() build failure.

But then, there are some more failures caused by the fact that numerous
glibc files were not using modern prototypes in the function
definitions, causing build failures such as:

../sysdeps/unix/sysv/linux/dl-openat64.c:26:1: error: 'openat64' defined as variadic function without prototype [-Werror]
 openat64 (dfd, file, oflag)
 ^~~~~~~~
In file included from ../include/fcntl.h:2:0,
                 from ../sysdeps/unix/sysv/linux/dl-openat64.c:21:
../io/fcntl.h:214:12: note: previous declaration of 'openat64' was here
 extern int openat64 (int __fd, const char *__file, int __oflag, ...)
            ^~~~~~~~

This could be fixed by backporting glibc commit
9dd346ff431fc761f1b748bd4da8bb59f7652094, but this is a large commit,
touching a significant number of files. We probably don't want to take
this path, and instead making glibc 2.22 as not available with gcc 6.x
seems like the right course of action.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2016-05-17 08:43:27 +02:00

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if BR2_TOOLCHAIN_BUILDROOT_EGLIBC
config BR2_PACKAGE_EGLIBC
bool
default y
select BR2_PACKAGE_LINUX_HEADERS
choice
prompt "eglibc version"
default BR2_EGLIBC_VERSION_2_18
config BR2_EGLIBC_VERSION_2_18
bool "2.18-svnr23787"
# Build breakage
depends on !BR2_sparc
config BR2_EGLIBC_VERSION_2_19
bool "2.19-svnr25243"
# Build breakage
depends on !BR2_powerpc_SPE
endchoice
endif
if BR2_TOOLCHAIN_BUILDROOT_GLIBC
config BR2_PACKAGE_GLIBC
bool
default y
select BR2_PACKAGE_LINUX_HEADERS
choice
prompt "glibc version"
default BR2_GLIBC_VERSION_2_22
config BR2_GLIBC_VERSION_2_22
bool "2.22"
# No support for pthread barriers on < v9 ISA
depends on !BR2_sparc
# Too old to build with gcc >= 6.x
depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_6
config BR2_GLIBC_VERSION_2_23
bool "2.23"
# No support for pthread barriers on < v9 ISA
depends on !BR2_sparc
endchoice
endif
config BR2_GLIBC_VERSION_STRING
string
default "2.18-svnr23787" if BR2_EGLIBC_VERSION_2_18
default "2.19-svnr25243" if BR2_EGLIBC_VERSION_2_19
default "2.22" if BR2_GLIBC_VERSION_2_22
default "2.23" if BR2_GLIBC_VERSION_2_23