Re: [PATCH] btrfs-progs: Fix the issues btrfs-convert don't recognition ext4 i_{a,c,a}time_extra

[David Sterba <dsterba@suse.cz>]

On Sat, Aug 28, 2021 at 12:41:19PM +0800, li zhang wrote:
> Is there any possibility that the version of the GNU build system caused
> the ./configure error
> to be generated? On my machine, I produced a valid ./configure, and my
> compilation
> environment is as follows:
> aclocal:    aclocal (GNU automake) 1.13.4
> autoconf:   autoconf (GNU Autoconf) 2.69
> autoheader: autoheader (GNU Autoconf) 2.69
> automake:   automake (GNU automake) 1.13.4
> OS: centos 7.6

You'd have to run the ./configure script or inspect it manually though
it could be hard to locate the lines in the generated script.

I get the following diff, the commas are interprted as shell commands.

--- configure-bad       2021-08-30 11:35:22.034446343 +0200
+++ configure-good      2021-08-30 11:34:19.130281370 +0200
@@ -6469,6 +6469,8 @@ else
   have_ext4_epoch_mask_define=no
 fi
 
+have_ext4_epoch_mask_define=no
+
 if test "x$have_ext4_epoch_mask_define" = xno; then :
 
     ac_fn_c_check_member "$LINENO" "struct ext2_inode_large" "i_atime_extra" "ac_cv_member_struct_ext2_inode_large_i_atime_extra" "#include <ext2fs/ext2_fs.h>
@@ -6482,16 +6484,16 @@ _ACEOF
 
 
 $as_echo "#define HAVE_EXT4_EPOCH_MASK_DEFINE 1" >>confdefs.h
-,
+
 
 $as_echo "#define EXT4_EPOCH_BITS 2" >>confdefs.h
-,
+
 
 $as_echo "#define EXT4_EPOCH_MASK ((1 << EXT4_EPOCH_BITS) - 1)" >>confdefs.h
-,
+
 
 $as_echo "#define EXT4_NSEC_MASK (~0UL << EXT4_EPOCH_BITS)" >>confdefs.h
-,
+
 
 $as_echo "#define inode_includes(size, field) (size >= (sizeof(((struct ext2_inode_large *)0)->field) + offsetof(struct ext2_inode_large, field)))" >>confdefs.h
---