From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hollis Blanchard <hollis_blanchard@mentor.com>
Date: Tue, 28 Jul 2015 17:23:58 -0700
Subject: [Buildroot] building host-e2fsprogs on RHEL5.8
Message-ID: <55B81D1E.90203@mentor.com>
List-Id: <buildroot.busybox.net>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: buildroot@busybox.net

I get two errors when building buildroot's host-e2fsprogs (1.42.13) on 
RHEL5.8, both from e4defrag.c:
e4defrag.c:197:2: error: #error sync_file_range not available!
e4defrag.c:201:2: error: #error fallocate64 not available!

The latter can be patched by calling posix_fallocate64 instead. The 
former seems to be due to a known bug 
<https://bugzilla.redhat.com/show_bug.cgi?id=518581>, requiring manually 
calling syscall().

(For the record, this is glibc 2.5 and kernel 2.6.18.)

I can work around the problem with this:
diff --git a/package/e2fsprogs/e2fsprogs.mk b/package/e2fsprogs/e2fsprogs.mk
index 0537521..4aeda83 100644
--- a/package/e2fsprogs/e2fsprogs.mk
+++ b/package/e2fsprogs/e2fsprogs.mk
@@ -12,6 +12,9 @@ E2FSPROGS_LICENSE_FILES = COPYING lib/uuid/COPYING 
lib/ss/mit-sipb-copyright.h l
  E2FSPROGS_INSTALL_STAGING = YES
  E2FSPROGS_INSTALL_STAGING_OPTS = DESTDIR=$(STAGING_DIR) install-libs

+HOST_E2FSPROGS_CONF_OPTS = \
+       --disable-defrag
+
  E2FSPROGS_CONF_OPTS = \
         $(if $(BR2_STATIC_LIBS),,--enable-elf-shlibs) \
         $(if $(BR2_PACKAGE_E2FSPROGS_DEBUGFS),,--disable-debugfs) \


Alternately, if I come up with patches to work around these two 
problems, would buildroot carry them until upstream e2fsprogs (hopefully 
one day) picks them up?

-- 
Hollis Blanchard
Mentor Graphics Emulation Division