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From e6e049ca6a371528ebf39b106209c2df586500bc Mon Sep 17 00:00:00 2001
From: Gang He <ghe@suse.com>
Date: Mon, 4 Mar 2019 15:20:34 +0800
Subject: [PATCH] Fix build failure with glibc 2.28
Since glibc git 663e7d78 (to be 2.28), type loff_t will be only defined
when _DEFAULT_SOURCE defined. And with _XOPEN_SOURCE defined,
_DEFAULT_SOURCE will not be defined by default.
Build failed with the error messages like,
Make[1]: Entering directory '/builddir/build/BUILD/ocfs2-tools-ocfs2-tools-1.8.5/libo2cb'
gcc -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -mcet -fcf-protection -Wall -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -pipe -fPIC -I../include -I. -DHAVE_CMAP -DHAVE_FSDLM -MD -MP -MF ./.o2cb_abi.d -o o2cb_abi.o -c o2cb_abi.c
In file included from o2cb_abi.c:52:
../include/ocfs2/ocfs2.h:222:2: error: unknown type name 'loff_t'
loff_t d_off; /* Offset of structure in the file */
^~~~~~
---
Preamble.make | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Preamble.make b/Preamble.make
index b9b4af03..10adc031 100644
--- a/Preamble.make
+++ b/Preamble.make
@@ -28,7 +28,7 @@ DIST_RULES =
INCLUDES =
DEFINES =
-CFLAGS += -pipe
+CFLAGS += -pipe -D_DEFAULT_SOURCE=1
# protect with configure?
CDEPFLAGS = -MD -MP -MF $(@D)/.$(basename $(@F)).d
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