grep branch, master, updated. v2.13-12-gec73b46

[Jim Meyering]

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http://git.savannah.gnu.org/cgit/grep.git/commit/?id=ec73b46b4230f3dc3c9188922691977b576ee445


commit ec73b46b4230f3dc3c9188922691977b576ee445
Author: Jim Meyering <address@hidden>
Date:   Thu Aug 2 14:58:57 2012 +0200

    tests: skip failing test on FS/system that lack SEEK_HOLE support
    
    * tests/big-hole: Test for SEEK_HOLE support.  If not available,
    skip this test.  Hence, this test is now skipped on linux-3.5.0 with
    ext4 or tmpfs.  The test runs (and passes) with at least btrfs, xfs,
    or ocfs2.
    * bootstrap.conf (gnulib_modules): Use the perl module.

diff --git a/bootstrap.conf b/bootstrap.conf
index f89a56e..c47954d 100644
--- a/bootstrap.conf
+++ b/bootstrap.conf
@@ -61,6 +61,7 @@ mempcpy
 minmax
 obstack
 openat-safer
+perl
 progname
 propername
 quote
diff --git a/tests/big-hole b/tests/big-hole
index 20ade97..eac077f 100755
--- a/tests/big-hole
+++ b/tests/big-hole
@@ -5,6 +5,12 @@
 
 expensive_
 
+# Skip this test if there is no usable SEEK_HOLE support,
+# as is the case with linux-3.5.0 on ext4 and tmpfs file systems.
+$PERL -e '$f=*STDERR; sysseek($f,2**22,0); syswrite($f,"a");' \
+      -e 'exit ("0 but true" ne sysseek($f,0,4))' 2> seek-hole-test \
+  || skip_ "this system/FS lacks SEEK_HOLE support"
+
 # Try to make this test not THAT expensive, on typical hosts.
 virtual_memory_KiB=10240
 if echo x | (ulimit -v $virtual_memory_KiB && grep x) >/dev/null 2>&1; then

-----------------------------------------------------------------------

Summary of changes:
 bootstrap.conf |    1 +
 tests/big-hole |    6 ++++++
 2 files changed, 7 insertions(+), 0 deletions(-)


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