mirror_zfs/lib/libspl
Rafael Kitover 762f9ef3d9 config: better libtirpc detection
Improve the autoconf code for finding libtirpc and do not assume the
headers are in /usr/include/tirpc.

Also remove this assumption from the `rpc/xdr.h` header in libspl and
use the same `#include_next` mechanism that is used for other libspl
headers.

Include pkg.m4 from pkg-config in config/ for PKG_CHECK_MODULES(), the
file license allows this.

Include ax_save_flags.m4 and ax_restore_flags.m4 from autoconf-archive,
the file licenses are compatible. Use the 2012 versions so as not rely
on a more recent autoconf feature AS_VAR_COPY(), which breaks some build
slaves.

Add new macro library `config/find_system_library.m4` which defines the
FIND_SYSTEM_LIBRARY() macro which is a convenience wrapper over using
PKG_CHECK_MODULES() with a fallback to standard library locations and
some sanity checks.

The parameters are:

```
FIND_SYSTEM_LIBRARY(VARIABLE-PREFIX, MODULE, HEADER, HEADER-PREFIXES,
    LIBRARY, FUNCTIONS, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
```

`HEADER-PREFIXES` and `FUNCTIONS` are comma-separated m4 lists.

For libtirpc we are using:

```
FIND_SYSTEM_LIBRARY(LIBTIRPC, [libtirpc], [rpc/xdr.h], [tirpc], [tirpc],
    [xdrmem_create], [], [...])
```

The headers are first checked for without the prefixes and then with.

This system works with pkg-config and falls back on checking standard
header/library locations, it can be easily overridden by the user by
setting the `PREFIX_CFLAGS` and `PREFIX_LIBS` variables which are
automatically added to the `./configure --help` output.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rafael Kitover <rkitover@gmail.com>
Closes #7422 
Closes #8313
2019-03-02 16:19:05 -08:00
..
asm-generic Use cstyle -cpP in make cstyle check 2016-12-12 10:46:26 -08:00
asm-i386 Fix atomic_sub_64() i386 assembly implementation 2017-02-01 09:36:47 -08:00
asm-x86_64 Support parallel build trees (VPATH builds) 2015-07-17 13:42:51 -07:00
include config: better libtirpc detection 2019-03-02 16:19:05 -08:00
getexecname.c Fix coverity defects: CID 150921, 150927 2016-10-14 09:40:08 -07:00
gethostid.c Add libtpool (thread pools) 2017-08-09 15:31:08 -07:00
getmntany.c Compatibilty with glibc-2.23 2017-05-16 17:00:16 -07:00
list.c Add linux libspl support 2010-08-31 13:41:59 -07:00
Makefile.am config: better libtirpc detection 2019-03-02 16:19:05 -08:00
mkdirp.c Fix calloc(3) arguments order 2018-04-12 10:50:39 -07:00
page.c ABD optimized page allocation code 2016-11-29 14:34:33 -08:00
strlcat.c Check for strlcat and strlcpy 2018-12-11 16:01:41 -08:00
strlcpy.c Check for strlcat and strlcpy 2018-12-11 16:01:41 -08:00
timestamp.c Fix zpool iostat -T d 1 on musl 2017-04-12 08:57:46 -07:00
zone.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00