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zfs/config/user-libblkid.m4

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Add build system Add autoconf style build infrastructure to the ZFS tree. This includes autogen.sh, configure.ac, m4 macros, some scripts/*, and makefiles for all the core ZFS components.
2010-08-26 18:22:58 +00:00
dnl #
Require libblkid Historically libblkid support was detected as part of configure and optionally enabled. This was done because at the time support for detecting ZFS pool vdevs had just be added to libblkid and those updated packages were not yet part of many distributions. This is no longer the case and any reasonably current distribution will ship a version of libblkid which can detect ZFS pool vdevs. This patch makes libblkid mandatory at build time and libblkid the preferred method of scanning for ZFS pools. For distributions which include a modern version of libblkid there is no change in behavior. Explicitly scanning the default search paths is still supported and can be enabled with the '-s' command line option. Additionally making libblkid mandatory means that the 'zpool create' command can reliably detect if a specified device has an existing non-ZFS filesystem (ext4, xfs) and print a warning. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #2448
2016-02-19 23:43:43 +00:00
dnl # Check for libblkid. Basic support for detecting ZFS pools
dnl # has existing in blkid since 2008.
Add build system Add autoconf style build infrastructure to the ZFS tree. This includes autogen.sh, configure.ac, m4 macros, some scripts/*, and makefiles for all the core ZFS components.
2010-08-26 18:22:58 +00:00
dnl #
AC_DEFUN([ZFS_AC_CONFIG_USER_LIBBLKID], [
Clean up lib dependencies libzutil is currently statically linked into libzfs, libzfs_core and libzpool. Avoid the unnecessary duplication by removing it from libzfs and libzpool, and adding libzfs_core to libzpool. Remove a few unnecessary dependencies: - libuutil from libzfs_core - libtirpc from libspl - keep only libcrypto in libzfs, as we don't use any functions from libssl - librt is only used for clock_gettime, however on modern systems that's in libc rather than librt. Add a configure check to see if we actually need librt - libdl from raidz_test Add a few missing dependencies: - zlib to libefi and libzfs - libuuid to zpool, and libuuid and libudev to zed - libnvpair uses assertions, so add assert.c to provide aok and libspl_assertf Sort the LDADD for programs so that libraries that satisfy dependencies come at the end rather than the beginning of the linker command line. Revamp the configure tests for libaries to use FIND_SYSTEM_LIBRARY instead. This can take advantage of pkg-config, and it also avoids polluting LIBS. List all the required dependencies in the pkgconfig files, and move the one for libzfs_core into the latter's directory. Install pkgconfig files in $(libdir)/pkgconfig on linux and $(prefix)/libdata/pkgconfig on FreeBSD, instead of /usr/share/pkgconfig, as the more correct location for library .pc files. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Closes #10538
2020-06-30 17:10:41 +00:00
FIND_SYSTEM_LIBRARY(LIBBLKID, [blkid], [blkid/blkid.h], [], [blkid], [], [], [
AC_MSG_FAILURE([
*** blkid.h missing, libblkid-devel package required])])
Add build system Add autoconf style build infrastructure to the ZFS tree. This includes autogen.sh, configure.ac, m4 macros, some scripts/*, and makefiles for all the core ZFS components.
2010-08-26 18:22:58 +00:00
])