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f4e2aed42a
Since Linux 6.7 the kernel has defined intptr_t. Clang has -Wtypedef-redefinition by default, which causes the build to fail because we also have a typedef for intptr_t. Since its better to use the kernel's if it exists, detect it and skip our own. Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #16201
41 lines
890 B
Plaintext
41 lines
890 B
Plaintext
dnl #
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dnl # check if kernel provides definitions for given types
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dnl #
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dnl _ZFS_AC_KERNEL_SRC_TYPE(type)
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AC_DEFUN([_ZFS_AC_KERNEL_SRC_TYPE], [
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ZFS_LINUX_TEST_SRC([type_$1], [
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#include <linux/types.h>
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],[
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const $1 __attribute__((unused)) x = ($1) 0;
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])
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])
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dnl _ZFS_AC_KERNEL_TYPE(type)
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AC_DEFUN([_ZFS_AC_KERNEL_TYPE], [
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AC_MSG_CHECKING([whether kernel defines $1])
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ZFS_LINUX_TEST_RESULT([type_$1], [
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AC_MSG_RESULT([yes])
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AC_DEFINE([HAVE_KERNEL_]m4_quote(m4_translit([$1], [a-z], [A-Z])),
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1, [kernel defines $1])
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], [
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AC_MSG_RESULT([no])
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])
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])
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dnl ZFS_AC_KERNEL_TYPES([types...])
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AC_DEFUN([ZFS_AC_KERNEL_TYPES], [
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AC_DEFUN([ZFS_AC_KERNEL_SRC_TYPES], [
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m4_foreach_w([type], [$1], [
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_ZFS_AC_KERNEL_SRC_TYPE(type)
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_TYPES], [
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m4_foreach_w([type], [$1], [
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_ZFS_AC_KERNEL_TYPE(type)
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])
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])
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])
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ZFS_AC_KERNEL_TYPES([intptr_t])
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