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762f9ef3d9
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
31 lines
983 B
Plaintext
31 lines
983 B
Plaintext
dnl #
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dnl # Check for libtirpc - may be needed for xdr functionality
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dnl #
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AC_DEFUN([ZFS_AC_CONFIG_USER_LIBTIRPC], [
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AC_ARG_WITH([tirpc],
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[AS_HELP_STRING([--with-tirpc],
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[use tirpc for xdr encoding @<:@default=check@:>@])],
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[],
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[with_tirpc=check])
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have_xdr=
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AS_IF([test "x$with_tirpc" != "xyes"], [
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AC_SEARCH_LIBS([xdrmem_create], [], [have_xdr=1], [
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AS_IF([test "x$with_tirpc" = "xno"], [
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AC_MSG_FAILURE([xdrmem_create() requires sunrpc support in libc if not using libtirpc])
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])
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])
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])
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AS_IF([test "x$have_xdr" = "x"], [
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FIND_SYSTEM_LIBRARY(LIBTIRPC, [libtirpc], [rpc/xdr.h], [tirpc], [tirpc], [xdrmem_create], [], [
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AS_IF([test "x$with_tirpc" = "xyes"], [
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AC_MSG_FAILURE([--with-tirpc was given, but libtirpc is not available, try installing libtirpc-devel])
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],[dnl ELSE
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AC_MSG_FAILURE([neither libc sunrpc support nor libtirpc is available, try installing libtirpc-devel])
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])
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])
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])
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])
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