X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=libcfs%2Fautoconf%2Flustre-libcfs.m4;h=09ea8f60efcff5dd338d627f27898e8f0510c9c7;hp=543b989561bd443748d452f79a8492270a159cdc;hb=09a53f30e40e4897318698742f87cfe4f03d2e20;hpb=ffb2b46ed7eda42530596df3d52f76250d53e506 diff --git a/libcfs/autoconf/lustre-libcfs.m4 b/libcfs/autoconf/lustre-libcfs.m4 index 543b989..09ea8f6 100644 --- a/libcfs/autoconf/lustre-libcfs.m4 +++ b/libcfs/autoconf/lustre-libcfs.m4 @@ -49,213 +49,6 @@ AS_IF([test "x$enable_panic_dumplog" = xyes], ]) # LIBCFS_CONFIG_PANIC_DUMPLOG # -# LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK -# -# 2.6.32-30.el6 adds a new 'walk_stack' field in 'struct stacktrace_ops' -# -AC_DEFUN([LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK], [ -LB_CHECK_COMPILE([if 'struct stacktrace_ops' has 'walk_stack' field], -stacktrace_ops_walk_stack, [ - #include -],[ - ((struct stacktrace_ops *)0)->walk_stack(NULL, NULL, 0, NULL, NULL, NULL, NULL); -],[ - AC_DEFINE(STACKTRACE_OPS_HAVE_WALK_STACK, 1, - ['struct stacktrace_ops' has 'walk_stack' field]) -]) -]) # LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK - -# -# LIBCFS_STACKTRACE_WARNING -# -# 3.0 removes stacktrace_ops warning* functions -# -AC_DEFUN([LIBCFS_STACKTRACE_WARNING], [ -LB_CHECK_COMPILE([if 'stacktrace_ops.warning' is exist], -stacktrace_ops_warning, [ - struct task_struct; - struct pt_regs; - #include -],[ - ((struct stacktrace_ops *)0)->warning(NULL, NULL); -],[ - AC_DEFINE(HAVE_STACKTRACE_WARNING, 1, - [stacktrace_ops.warning is exist]) -]) -]) # LIBCFS_STACKTRACE_WARNING - -# -# LC_SHRINKER_WANT_SHRINK_PTR -# -# RHEL6/2.6.32 want to have pointer to shrinker self pointer in handler function -# -AC_DEFUN([LC_SHRINKER_WANT_SHRINK_PTR], [ -LB_CHECK_COMPILE([if 'shrinker' want self pointer in handler], -shrink_self_pointer, [ - #include -],[ - struct shrinker *tmp = NULL; - tmp->shrink(tmp, 0, 0); -],[ - AC_DEFINE(HAVE_SHRINKER_WANT_SHRINK_PTR, 1, - [shrinker want self pointer in handler]) -]) -]) # LC_SHRINKER_WANT_SHRINK_PTR - -# -# LIBCFS_SYSCTL_CTLNAME -# -# 2.6.33 no longer has ctl_name & strategy field in struct ctl_table. -# -AC_DEFUN([LIBCFS_SYSCTL_CTLNAME], [ -LB_CHECK_COMPILE([if 'ctl_table' has a 'ctl_name' field], -ctl_table_ctl_name, [ - #include -],[ - struct ctl_table ct; - ct.ctl_name = sizeof(ct); -],[ - AC_DEFINE(HAVE_SYSCTL_CTLNAME, 1, - [ctl_table has ctl_name field]) -]) -]) # LIBCFS_SYSCTL_CTLNAME - -# -# LIBCFS_MODULE_LOCKING -# -# 2.6.36 introduced locking to module params. RHEL6 lacks this support -# -AC_DEFUN([LIBCFS_MODULE_LOCKING],[ -LB_CHECK_COMPILE([does the kernel support module param locking], -module_param_locking, [ - #include -],[ - __kernel_param_lock(NULL); - __kernel_param_unlock(NULL); -],[ - AC_DEFINE(HAVE_MODULE_PARAM_LOCKING, 1, - [locking module param is supported]) -]) -]) # LIBCFS_MODULE_LOCKING - -# -# LIBCFS_KSTRTOUL -# -# 2.6.38 kstrtoul is added -# -AC_DEFUN([LIBCFS_KSTRTOUL], [ -LB_CHECK_COMPILE([if Linux kernel has 'kstrtoul'], -kstrtoul, [ - #include -],[ - unsigned long result; - return kstrtoul("12345", 0, &result); -],[ - AC_DEFINE(HAVE_KSTRTOUL, 1, - [kernel has kstrtoul]) -]) -]) # LIBCFS_KSTRTOUL - -# -# LIBCFS_DUMP_TRACE_ADDRESS -# -# 2.6.39 adds a base pointer address argument to dump_trace -# -AC_DEFUN([LIBCFS_DUMP_TRACE_ADDRESS], [ -LB_CHECK_COMPILE([if 'dump_trace' want address], -dump_trace_address, [ - struct task_struct; - struct pt_regs; - #include -],[ - dump_trace(NULL, NULL, NULL, 0, NULL, NULL); -],[ - AC_DEFINE(HAVE_DUMP_TRACE_ADDRESS, 1, - [dump_trace want address argument]) -]) -]) # LIBCFS_DUMP_TRACE_ADDRESS - -# -# LC_SHRINK_CONTROL -# -# FC15 2.6.40-5 backported the "shrink_control" parameter to the memory -# pressure shrinker from Linux 3.0 -# -AC_DEFUN([LC_SHRINK_CONTROL], [ -LB_CHECK_COMPILE([if 'shrink_control' is present], -shrink_control, [ - #include - #include -],[ - struct shrink_control tmp = {0}; - tmp.nr_to_scan = sizeof(tmp); -],[ - AC_DEFINE(HAVE_SHRINK_CONTROL, 1, - [shrink_control is present]) -]) -]) # LC_SHRINK_CONTROL - -# -# LIBCFS_PROCESS_NAMESPACE -# -# 3.5 introduced process namespace -AC_DEFUN([LIBCFS_PROCESS_NAMESPACE], [ -LB_CHECK_LINUX_HEADER([linux/uidgid.h], [ - AC_DEFINE(HAVE_UIDGID_HEADER, 1, - [uidgid.h is present])]) -]) # LIBCFS_PROCESS_NAMESPACE - -# -# LIBCFS_I_UID_READ -# -# 3.5 added helpers to read the new uid/gid types from VFS structures -# SLE11 SP3 has uidgid.h but not the helpers -# -AC_DEFUN([LIBCFS_I_UID_READ], [ -LB_CHECK_COMPILE([if 'i_uid_read' is present], -i_uid_read, [ - #include -],[ - i_uid_read(NULL); -],[ - AC_DEFINE(HAVE_I_UID_READ, 1, [i_uid_read is present]) -]) -]) # LIBCFS_I_UID_READ - -# -# LIBCFS_HAVE_CRC32 -# -AC_DEFUN([LIBCFS_HAVE_CRC32], [ -LB_CHECK_CONFIG_IM([CRC32], - [have_crc32="yes"], [have_crc32="no"]) -AS_IF([test "x$have_crc32" = xyes], - [AC_DEFINE(HAVE_CRC32, 1, - [kernel compiled with CRC32 functions])]) -]) # LIBCFS_HAVE_CRC32 - -# -# LIBCFS_ENABLE_CRC32_ACCEL -# -AC_DEFUN([LIBCFS_ENABLE_CRC32_ACCEL], [ -LB_CHECK_CONFIG_IM([CRYPTO_CRC32_PCLMUL], - [enable_crc32_crypto="no"], [enable_crc32_crypto="yes"]) -AS_IF([test "x$have_crc32" = xyes -a "x$enable_crc32_crypto" = xyes], [ - AC_DEFINE(NEED_CRC32_ACCEL, 1, [need pclmulqdq based crc32]) - AC_MSG_WARN([No crc32 pclmulqdq crypto api found, enable internal pclmulqdq based crc32])]) -]) # LIBCFS_ENABLE_CRC32_ACCEL - -# -# LIBCFS_ENABLE_CRC32C_ACCEL -# -AC_DEFUN([LIBCFS_ENABLE_CRC32C_ACCEL], [ -LB_CHECK_CONFIG_IM([CRYPTO_CRC32C_INTEL], - [enable_crc32c_crypto="no"], [enable_crc32c_crypto="yes"]) -AS_IF([test "x$enable_crc32c_crypto" = xyes], [ - AC_DEFINE(NEED_CRC32C_ACCEL, 1, [need pclmulqdq based crc32c]) - AC_MSG_WARN([No crc32c pclmulqdq crypto api found, enable internal pclmulqdq based crc32c])]) -]) # LIBCFS_ENABLE_CRC32C_ACCEL - -# # Kernel version 3.11 introduced ktime_get_ts64 # AC_DEFUN([LIBCFS_KTIME_GET_TS64],[ @@ -404,6 +197,28 @@ shrinker_count_objects, [ ]) # LIBCFS_SHRINKER_COUNT # +# LIBCFS_IOV_ITER_HAS_TYPE +# +# kernel 3.15-rc4 commit 71d8e532b1549a478e6a6a8a44f309d050294d00 +# start adding the tag to iov_iter +# +AC_DEFUN([LIBCFS_IOV_ITER_HAS_TYPE], [ +tmp_flags="$EXTRA_KCFLAGS" +EXTRA_KCFLAGS="-Werror" +LB_CHECK_COMPILE([if iov_iter has member type], +iov_iter_has_type_member, [ + #include +],[ + struct iov_iter iter = { .type = ITER_KVEC }; + (void)iter; +],[ + AC_DEFINE(HAVE_IOV_ITER_HAS_TYPE_MEMBER, 1, + [if iov_iter has member type]) +]) +EXTRA_KCFLAGS="$tmp_flags" +]) # LIBCFS_IOV_ITER_HAS_TYPE + +# # Kernel version 3.17 changed hlist_add_after to # hlist_add_behind # @@ -636,16 +451,6 @@ topology_sibling_cpumask, [ ]) # LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK # -# Kernel version 4.2 commit df6b35f409af0a8ff1ef62f552b8402f3fef8665 -# header file i387.h was renamed to fpu/api.h -# -AC_DEFUN([LIBCFS_FPU_API], [ -LB_CHECK_LINUX_HEADER([asm/fpu/api.h], [ - AC_DEFINE(HAVE_FPU_API_HEADER, 1, - [fpu/api.h is present])]) -]) # LIBCFS_FPU_API - -# # Kernel version 4.4 commit ef951599074ba4fad2d0efa0a977129b41e6d203 # introduced kstrtobool and kstrtobool_from_user. # @@ -680,7 +485,25 @@ crypto_hash_helpers, [ ]) # LIBCFS_CRYPTO_HASH_HELPERS # -# Kernerl version 4.5-rc3 commit 2fe829aca9d7bed5fd6b49c6a1452e5e486b6cc3dd +# Kernel version 4.5-rc1 commit 3502cad73c4bbf8f6365d539e814159275252c59 +# introduced rhashtable_replace_fast +# +AC_DEFUN([LIBCFS_RHASHTABLE_REPLACE], [ +LB_CHECK_COMPILE([if 'rhashtable_replace_fast' exists], +rhashtable_replace_fast, [ + #include +],[ + const struct rhashtable_params params = { 0 }; + + rhashtable_replace_fast(NULL, NULL, NULL, params); +],[ + AC_DEFINE(HAVE_RHASHTABLE_REPLACE, 1, + [rhashtable_replace_fast() is available]) +]) +]) # LIBCFS_RHASHTABLE_REPLACE + +# +# Kernel version 4.5-rc3 commit 2fe829aca9d7bed5fd6b49c6a1452e5e486b6cc3dd # made kset_find_obj() exportable to modules # AC_DEFUN([LIBCFS_EXPORT_KSET_FIND_OBJ], [ @@ -780,6 +603,23 @@ EXTRA_KCFLAGS="$tmp_flags" ]) # LIBCFS_RHASHTABLE_INSERT_FAST # +# Kernel version 4.7-rc1 commit 8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697 +# added 3rd arg to rhashtable_walk_init +# +AC_DEFUN([LIBCFS_RHASHTABLE_WALK_INIT_3ARG], [ +LB_CHECK_COMPILE([if 'rhashtable_walk_init' has 3 args], +rhashtable_walk_init, [ + #include + #include +],[ + rhashtable_walk_init(NULL, NULL, GFP_KERNEL); +],[ + AC_DEFINE(HAVE_3ARG_RHASHTABLE_WALK_INIT, 1, + [rhashtable_walk_init() has 3 args]) +]) +]) # LIBCFS_RHASHTABLE_REPLACE + +# # Kernel version 4.8-rc6 commit ca26893f05e86497a86732768ec53cd38c0819ca # introduced rhashtable_lookup # @@ -840,6 +680,22 @@ stacktrace_ops, [ ]) # LIBCFS_STACKTRACE_OPS # +# Kernel version 4.9-rc1 commit 246779dd090bd1b74d2652b3a6ca7759f593b27a +# introduced rhashtable_walk_enter +# +AC_DEFUN([LIBCFS_RHASHTABLE_WALK_ENTER], [ +LB_CHECK_COMPILE([if 'rhashtable_walk_enter' exists], +rhashtable_walk_enter, [ + #include +],[ + rhashtable_walk_enter(NULL, NULL); +],[ + AC_DEFINE(HAVE_RHASHTABLE_WALK_ENTER, 1, + [rhashtable_walk_enter() is available]) +]) +]) # LIBCFS_RHASHTABLE_REPLACE + +# # Kernel version 4.9 commit 768ae309a96103ed02eb1e111e838c87854d8b51 # mm: replace get_user_pages() write/force parameters with gup_flags # @@ -873,6 +729,16 @@ cpu_hotplug_state_machine, [ ]) # LIBCFS_HOTPLUG_STATE_MACHINE # +# Kernel version 4.10-rc3 commit f405df5de3170c00e5c54f8b7cf4766044a032ba +# introduced refcount_t which is atomic_t plus over flow guards. +# +AC_DEFUN([LIBCFS_REFCOUNT_T], [ +LB_CHECK_LINUX_HEADER([linux/refcount.h], [ + AC_DEFINE(HAVE_REFCOUNT_T, 1, + [refcount_t is supported])]) +]) # LIBCFS_REFCOUNT_T + +# # LIBCFS_SCHED_HEADERS # # 4.11 has broken up sched.h into more headers. @@ -884,6 +750,23 @@ LB_CHECK_LINUX_HEADER([linux/sched/signal.h], [ ]) # LIBCFS_SCHED_HEADERS # +# Kernel version 4.11-rc1 commit da20420f83ea0fbcf3d03afda08d971ea1d8a356 +# introduced rht_bucket_var +# +AC_DEFUN([LIBCFS_RHT_BUCKET_VAR], [ +LB_CHECK_COMPILE([if 'rht_bucket_var' exists], +rht_bucket_var, [ + #include +],[ + + rht_bucket_var(NULL, 0); +],[ + AC_DEFINE(HAVE_RHT_BUCKET_VAR, 1, + [rht_bucket_var() is available]) +]) +]) # LIBCFS_RHT_BUCKET_VAR + +# # Kernel version 4.11 commit f9fe1c12d126f9887441fa5bb165046f30ddd4b5 # introduced rhashtable_lookup_get_insert_fast # @@ -1004,6 +887,50 @@ EXTRA_KCFLAGS="$tmp_flags" ]) # LIBCFS_NEW_KERNEL_WRITE # +# LIBCFS_MM_TOTALRAM_PAGES_FUNC +# +# kernel 5.0 commit ca79b0c211af63fa3276f0e3fd7dd9ada2439839 +# mm: convert totalram_pages and totalhigh_pages variables to atomic +# +AC_DEFUN([LIBCFS_MM_TOTALRAM_PAGES_FUNC], [ +tmp_flags="$EXTRA_KCFLAGS" +EXTRA_KCFLAGS="-Werror" +LB_CHECK_COMPILE([if totalram_pages is a function], +totalram_pages, [ + #include +],[ + totalram_pages_inc(); +],[ + AC_DEFINE(HAVE_TOTALRAM_PAGES_AS_FUNC, 1, + [if totalram_pages is a function]) +]) +EXTRA_KCFLAGS="$tmp_flags" +]) # LIBCFS_MM_TOTALRAM_PAGES_FUNC + +# +# LIBCFS_NEW_KERNEL_WRITE +# +# 4.14 commit bdd1d2d3d251c65b74ac4493e08db18971c09240 changed +# the signature of kernel_read to match other read/write helpers +# and place offset last. +# +AC_DEFUN([LIBCFS_NEW_KERNEL_READ], [ +tmp_flags="$EXTRA_KCFLAGS" +EXTRA_KCFLAGS="-Werror" +LB_CHECK_COMPILE([if 'kernel_read()' has loff_t *pos as last parameter], +kernel_read, [ + #include + ],[ + loff_t pos = 0; + kernel_read(NULL, NULL, 0, &pos); +],[ + AC_DEFINE(HAVE_KERNEL_READ_LAST_POSP, 1, + [kernel_read() signature ends with loff_t *pos]) +]) +EXTRA_KCFLAGS="$tmp_flags" +]) # LIBCFS_NEW_KERNEL_READ + +# # LIBCFS_DEFINE_TIMER # # Kernel version 4.14 commit 1d27e3e2252ba9d949ca82fbdb73cde102cb2067 @@ -1102,6 +1029,73 @@ clear_and_wake_up_bit, [ ]) # LIBCFS_CLEAR_AND_WAKE_UP_BIT # +# LIBCFS_HAVE_IOV_ITER_TYPE +# +# kernel 4.20 commit 00e23707442a75b404392cef1405ab4fd498de6b +# iov_iter: Use accessor functions to access an iterator's type and direction. +# +AC_DEFUN([LIBCFS_HAVE_IOV_ITER_TYPE], [ +tmp_flags="$EXTRA_KCFLAGS" +EXTRA_KCFLAGS="-Werror" +LB_CHECK_COMPILE([if iov_iter_type exists], +macro_iov_iter_type_exists, [ + #include +],[ + struct iov_iter iter = { .type = ITER_KVEC }; + enum iter_type type = iov_iter_type(&iter); + (void)type; +],[ + AC_DEFINE(HAVE_IOV_ITER_TYPE, 1, + [if iov_iter_type exists]) +]) +EXTRA_KCFLAGS="$tmp_flags" +]) # LIBCFS_HAVE_IOV_ITER_TYPE + +# +# LIBCFS_FORCE_SIG_WITH_TASK +# +# kernel 5.3 commit 3cf5d076fb4d48979f382bc9452765bf8b79e740 +# signal: Remove task parameter from force_sig +# +AC_DEFUN([LIBCFS_FORCE_SIG_WITH_TASK], [ +tmp_flags="$EXTRA_KCFLAGS" +EXTRA_KCFLAGS="-Werror" +LB_CHECK_COMPILE([if force_sig has task parameter], +force_sig_with_task, [ + #include +],[ + force_sig(SIGINT, NULL); +],[ + AC_DEFINE(HAVE_FORCE_SIG_WITH_TASK, 1, + [force_sig() has task parameter]) +]) +EXTRA_KCFLAGS="$tmp_flags" +]) # LIBCFS_FORCE_SIG_WITH_TASK + +# +# LIBCFS_CACHE_DETAIL_WRITERS +# +# kernel v5.3-rc2-1-g64a38e840ce5 +# SUNRPC: Track writers of the 'channel' file to improve cache_listeners_exist +# +AC_DEFUN([LIBCFS_CACHE_DETAIL_WRITERS], [ +tmp_flags="$EXTRA_KCFLAGS" +EXTRA_KCFLAGS="-Werror" +LB_CHECK_COMPILE([if struct cache_detail has writers], +cache_detail_writers_atomic, [ + #include + + static struct cache_detail rsi_cache; +],[ + atomic_set(&rsi_cache.writers, 0); +],[ + AC_DEFINE(HAVE_CACHE_DETAIL_WRITERS, 1, + [struct cache_detail has writers]) +]) +EXTRA_KCFLAGS="$tmp_flags" +]) # LIBCFS_CACHE_DETAIL_WRITERS + +# # LIBCFS_PROG_LINUX # # LibCFS linux kernel checks @@ -1111,29 +1105,6 @@ AC_MSG_NOTICE([LibCFS kernel checks ==============================================================================]) LIBCFS_CONFIG_PANIC_DUMPLOG -# 2.6.32 -LIBCFS_STACKTRACE_OPS_HAVE_WALK_STACK -LC_SHRINKER_WANT_SHRINK_PTR -# 2.6.33 -LIBCFS_SYSCTL_CTLNAME -# 2.6.36 -LIBCFS_MODULE_LOCKING -# 2.6.38 -LIBCFS_KSTRTOUL -# 2.6.39 -LIBCFS_DUMP_TRACE_ADDRESS -# 2.6.40 fc15 -LC_SHRINK_CONTROL -# 3.0 -LIBCFS_STACKTRACE_WARNING -# 3.5 -LIBCFS_PROCESS_NAMESPACE -LIBCFS_I_UID_READ -# 3.8 -LIBCFS_HAVE_CRC32 -LIBCFS_ENABLE_CRC32_ACCEL -# 3.10 -LIBCFS_ENABLE_CRC32C_ACCEL # 3.11 LIBCFS_KTIME_GET_TS64 # 3.12 @@ -1144,6 +1115,8 @@ LIBCFS_KTIME_AFTER LIBCFS_KTIME_BEFORE LIBCFS_KTIME_COMPARE LIBCFS_SHRINKER_COUNT +# 3.15 +LIBCFS_IOV_ITER_HAS_TYPE # 3.17 LIBCFS_HLIST_ADD_AFTER LIBCFS_TIMESPEC64 @@ -1162,12 +1135,12 @@ LIBCFS_KTIME_MS_DELTA LIBCFS_KERNEL_PARAM_LOCK # 4.2 LIBCFS_HAVE_TOPOLOGY_SIBLING_CPUMASK -LIBCFS_FPU_API # 4.4 LIBCFS_KSTRTOBOOL_FROM_USER # 4.5 LIBCFS_CRYPTO_HASH_HELPERS LIBCFS_EXPORT_KSET_FIND_OBJ +LIBCFS_RHASHTABLE_REPLACE # 4.6 LIBCFS_BROKEN_HASH_64 LIBCFS_STACKTRACE_OPS_ADDRESS_RETURN_INT @@ -1175,17 +1148,21 @@ LIBCFS_GET_USER_PAGES_6ARG LIBCFS_STRINGHASH # 4.7 LIBCFS_RHASHTABLE_INSERT_FAST +LIBCFS_RHASHTABLE_WALK_INIT_3ARG # 4.8 LIBCFS_RHASHTABLE_LOOKUP LIBCFS_RHLTABLE LIBCFS_STACKTRACE_OPS # 4.9 LIBCFS_GET_USER_PAGES_GUP_FLAGS +LIBCFS_RHASHTABLE_WALK_ENTER # 4.10 LIBCFS_HOTPLUG_STATE_MACHINE +LIBCFS_REFCOUNT_T # 4.11 LIBCFS_RHASHTABLE_LOOKUP_GET_INSERT_FAST LIBCFS_SCHED_HEADERS +LIBCFS_RHT_BUCKET_VAR # 4.12 LIBCFS_HAVE_PROCESSOR_HEADER LIBCFS_HAVE_WAIT_BIT_HEADER @@ -1196,6 +1173,7 @@ LIBCFS_WAIT_QUEUE_ENTRY # 4.14 LIBCFS_DEFINE_TIMER LIBCFS_NEW_KERNEL_WRITE +LIBCFS_NEW_KERNEL_READ LIBCFS_EXPORT_SAVE_STACK_TRACE_TSK # 4.15 LIBCFS_TIMER_SETUP @@ -1203,6 +1181,13 @@ LIBCFS_TIMER_SETUP LIBCFS_WAIT_VAR_EVENT # 4.17 LIBCFS_CLEAR_AND_WAKE_UP_BIT +# 4.20 +LIBCFS_HAVE_IOV_ITER_TYPE +# 5.0 +LIBCFS_MM_TOTALRAM_PAGES_FUNC +# 5.3 +LIBCFS_FORCE_SIG_WITH_TASK +LIBCFS_CACHE_DETAIL_WRITERS ]) # LIBCFS_PROG_LINUX # @@ -1269,15 +1254,6 @@ AC_SUBST(PTHREAD_LIBS) ]) # LIBCFS_CONFIGURE # -# LIBCFS_CONDITIONALS -# -AC_DEFUN([LIBCFS_CONDITIONALS], [ -AM_CONDITIONAL(HAVE_CRC32, [test "x$have_crc32" = xyes]) -AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32, [test "x$have_crc32" = xyes -a "x$enable_crc32_crypto" = xyes]) -AM_CONDITIONAL(NEED_PCLMULQDQ_CRC32C, [test "x$enable_crc32c_crypto" = xyes]) -]) # LIBCFS_CONDITIONALS - -# # LIBCFS_CONFIG_FILES # # files that should be generated with AC_OUTPUT