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Autoconf 2.70 compatibility

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Several m4 macros have been retired in autoconf 2.70.  Update the
the build system to use the new macros provided to replace them.

* Replaced AC_HELP_STRING with AS_HELP_STRING.

* Replaced AC_TRY_COMPILE with AC_COMPILE_IFELSE/AC_LANG_PROGRAM.

* Replaced AC_CANONICAL_SYSTEM with AC_CANONICAL_TARGET

* Replaced AC_PROG_LIBTOOL with LT_INIT

* $CPP is not defined in ZFS_AC_KERNEL and really shouldn't be
  directly used like this.  Replace it with an $AWK command
  to extract the kernel source version.

Reviewed-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #11413 
Closes #11419
This commit is contained in:
Brian Behlendorf
2021-01-02 16:55:55 -08:00
committed by GitHub
parent 4ba8c6b584
commit 06346cc5b5
12 changed files with 27 additions and 33 deletions
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config/kernel.m4
+5 -9
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@@ -322,19 +322,15 @@ AC_DEFUN([ZFS_AC_KERNEL], [
utsrelease2=$kernelbuild/include/linux/utsrelease.h
utsrelease3=$kernelbuild/include/generated/utsrelease.h
AS_IF([test -r $utsrelease1 && fgrep -q UTS_RELEASE $utsrelease1], [
utsrelease=linux/version.h
utsrelease=$utsrelease1
], [test -r $utsrelease2 && fgrep -q UTS_RELEASE $utsrelease2], [
utsrelease=linux/utsrelease.h
utsrelease=$utsrelease2
], [test -r $utsrelease3 && fgrep -q UTS_RELEASE $utsrelease3], [
utsrelease=generated/utsrelease.h
utsrelease=$utsrelease3
])
AS_IF([test "$utsrelease"], [
kernsrcver=`(echo "#include <$utsrelease>";
echo "kernsrcver=UTS_RELEASE") |
${CPP} -I $kernelbuild/include - |
grep "^kernsrcver=" | cut -d \" -f 2`
AS_IF([test -n "$utsrelease"], [
kernsrcver=$($AWK '/UTS_RELEASE/ { gsub(/"/, "", $[3]); print $[3] }' $utsrelease)
AS_IF([test -z "$kernsrcver"], [
AC_MSG_RESULT([Not found])
AC_MSG_ERROR([