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| author | Eric Blake <ebb9@byu.net> | 2010-01-06 14:12:45 -0700 |
|---|---|---|
| committer | Eric Blake <ebb9@byu.net> | 2010-01-06 19:01:19 -0700 |
| commit | 978114f6f3d4c5d0c1fd7f2bb1f48a37bab89553 (patch) | |
| tree | 4c4bf8b0a7332317107f4862789377071f128a0f /m4/pread.m4 | |
| parent | 010ecd2dfc078e5a475bc5ab152e7cfc10cef804 (diff) | |
| download | gnulib-978114f6f3d4c5d0c1fd7f2bb1f48a37bab89553.tar.gz | |
pread: fix compilation on glibc
pread was not mandatory until POSIX 2008, so glibc does not
expose it by default.
* m4/pread.m4 (gl_FUNC_PREAD): Request all interfaces.
Reported by Ralf Wildenhues.
Signed-off-by: Eric Blake <ebb9@byu.net>
Diffstat (limited to 'm4/pread.m4')
| -rw-r--r-- | m4/pread.m4 | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/m4/pread.m4 b/m4/pread.m4 index 50d9e4d997..f1425a6b1d 100644 --- a/m4/pread.m4 +++ b/m4/pread.m4 @@ -1,4 +1,4 @@ -# pread.m4 serial 1 +# pread.m4 serial 2 dnl Copyright (C) 2009-2010 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -7,6 +7,9 @@ dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_PREAD], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + dnl Persuade glibc <unistd.h> to declare pread(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_FUNCS_ONCE([pread]) if test $ac_cv_func_pread = no; then HAVE_PREAD=0 |