buildroot

configure: fix build on NIOS II platform

​

NIOS II is a CPU architecture from Altera, which uses 'nios2' as the

architecture part of the tuple. Unfortunately, 'nios2' matches the

current '*os2*' test done by libdvdread's configure script to detect

the OS/2 operating system. This leads to build issues as the build

process of libdvdread then tries to use OS/2 specific compiler

options, that do not exist in the gcc used for Linux/NIOS2.

​

To fix this, this patch makes the test for OS/2 a little bit more

specific: in the case of the OS/2 operating system, the OS part of the

tuple contains just 'os2' (confirmed by looking at config.guess and

config.sub in the gnuconfig project). So using '*-os2-*' will properly

match the OS/2 operating system but not the NIOS II architecture.

​

Upstream-status: submitted

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

​

Index: b/configure.ac

===================================================================

--- a/configure.ac

+++ b/configure.ac

@@ -146,7 +146,7 @@

   *cygwin*)

     LDFLAGS="-no-undefined $LDFLAGS"

     ;;

-  *os2*)

+  *-os2-*)

     LDFLAGS="-no-undefined -Zbin-files $LDFLAGS"

     ;;

   *)