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ipkg: fix MMU-less build

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The code incorrectly tests for __ARCH_HAS_MMU__ which is true for
architecture that *may* have a MMU, instead of __ARCH_USE_MMU__ which
specifies if MMU support is really enabled. Add a patch making direct
use of HAVE_FORK that configure defines when fork() is detected.

Fixes:
http://autobuild.buildroot.net/results/6cf/6cf75e08795d9ab194ce4e882c0f4858bad979c3/
http://autobuild.buildroot.net/results/964/964d8f694bc7d05b35411eabfbadf40bbf6337ae/
http://autobuild.buildroot.net/results/0f2/0f2cddf89af3ad4330556acd04ab6cb080370e24/

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Baruch Siach 2016-07-26 15:27:32 +03:00 committed by Thomas Petazzoni
parent c18d403a8d
commit 7800ae9f6a
1 changed files with 24 additions and 0 deletions
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24
package/ipkg/0002-fix-nommu.patch Normal file
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@ -0,0 +1,24 @@
libbb: fix no MMU build
uClibc-ng defines __ARCH_HAS_MMU__ for ARM or m68k because these
architectures may potentially have MMU. The code should test for
__ARCH_USE_MMU__, which indicates if the MMU is really in use. But
since the configure script detects the presence of fork(), using
HAVE_FORK directly is a better solution.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
---
Patch status: no active upstream
diff -Nuar ipkg-0.99.163-orig/libbb/libbb.h ipkg-0.99.163/libbb/libbb.h
--- ipkg-0.99.163-orig/libbb/libbb.h 2006-02-06 10:13:02.000000000 +0200
+++ ipkg-0.99.163/libbb/libbb.h 2016-07-26 13:50:09.296988855 +0300
@@ -341,7 +341,7 @@
#define CONSOLE_DEV "/dev/console"
/* Cope with mmu-less systems somewhat gracefully */
-#if defined(__UCLIBC__) && !defined(__ARCH_HAS_MMU__)
+#if !defined(HAVE_FORK)
#define fork vfork
#endif