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softether: add patch to fix build on uClibc toolchain without ifaddr support

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This commit adds a patch to softether to make sure it doesn't use the
ifaddrs functions when they are not provided by the C library, which
can be the case with certain external uClibc toolchains.

Fixes:

  http://autobuild.buildroot.net/results/199/19992951da34a703a476dc62ea92e12927c8a02d/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Thomas Petazzoni 2015-04-03 14:01:59 +02:00
parent da3e876db7
commit d9cf0a76db
1 changed files with 27 additions and 0 deletions
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27
package/softether/0007-uclibc-ai-addrconfig.patch Normal file
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@ -0,0 +1,27 @@
Only enable getifaddrs support when available
On uClibc, the ifaddrs.h support is optional. While the default
Buildroot uClibc configuration has it enabled, some external
toolchains may not. Therefore this patch detects that and adjusts
softether usage of ifaddrs accordingly.
Based on an initial patch from Bernd Kuhls.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Index: b/src/Mayaqua/Mayaqua.h
===================================================================
--- a/src/Mayaqua/Mayaqua.h
+++ b/src/Mayaqua/Mayaqua.h
@@ -235,9 +235,11 @@
#ifdef OS_UNIX
#ifndef UNIX_SOLARIS
#ifndef CPU_SH4
+#if !defined(__UCLIBC__) || defined(__UCLIBC_SUPPORT_AI_ADDRCONFIG__)
// Getifaddrs system call is supported on UNIX other than Solaris.
// However, it is not supported also by the Linux on SH4 CPU
#define MAYAQUA_SUPPORTS_GETIFADDRS
+#endif // !UCLIBC || UCLIBC_SUPPORT_AI_ADDRCONFIG
#endif // CPU_SH4
#endif // UNIX_SOLARIS
#endif // OS_UNIX