--- /dev/null
+# perl-time-hires.m4 serial 1
+
+# Copyright (C) 2022 Free Software Foundation, Inc.
+
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved. This file is offered as-is,
+# without warranty of any kind.
+
+# AClocal_PATH_PROG_GLOBS_FEATURE_CHECK
+# ---------------------------------
+# Like AC_PATH_PROGS_FEATURE_CHECK, but each of 'progs-to-check-for' may
+# be a shell glob, which is expanded once for each path entry.
+# That is, AClocal_PATH_PROG_GLOBS_FEATURE_CHECK([PERL], [perl-*]) will
+# test each program named something like 'perl-*' found anywhere on the
+# path. Due to the syntax conflict with Autoconf string quoting,
+# character sets (e.g. perl-[56]*) are not supported.
+m4_define([AClocal_PATH_PROG_GLOBS_FEATURE_CHECK],
+[if test -z "$$1"; then
+ ac_path_$1_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ dnl AS_ESCAPE has been excessively optimized and does not work for anything
+ dnl other than constructing strings. I have not been able to figure out how
+ dnl to get [ and ] through this process without mangling them, so
+ dnl character sets are not supported for now.
+ _AS_PATH_WALK([$5],
+ [for ac_prog in m4_bpatsubst([$2], [[!?*]], [\\\&])
+ do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_pathglob_$1="$as_dir$ac_prog$ac_exec_ext"
+ for ac_path_$1 in $ac_pathglob_$1; do
+ AS_EXECUTABLE_P(["$ac_path_$1"]) || continue
+$3
+ $ac_path_$1_found && break 4
+ done
+ done
+ done])dnl
+ if test -z "$ac_cv_path_$1"; then
+ m4_default([$4],
+ [AC_MSG_ERROR([no acceptable m4_bpatsubst([$2], [ .*]) could be dnl
+found in m4_default([$5], [\$PATH])])])
+ fi
+else
+ ac_cv_path_$1=$$1
+fi
+])
+
+# AC_PATH_PERL_WITH_TIME_HIRES_STAT
+# ---------------------------------
+# Check for a version of perl that supports Time::HiRes::stat.
+# This was added to perl core in 5.10 and it's convenient to
+# have a consistent 'use 5.0xx' baseline for all the perl scripts,
+# so that is the version we require, even though technically we
+# could be getting away with 5.8 or even 5.6 in many of the scripts.
+# (Note: Files shared with Automake do not necessarily use our baseline.)
+AC_DEFUN([AC_PATH_PERL_WITH_TIME_HIRES_STAT],
+ [AC_ARG_VAR([PERL], [Location of Perl 5.10 or later. Defaults to
+ the first program named 'perl', 'perl5*', or 'perl-5.*' on the PATH
+ that meets Autoconf's needs.])
+ AC_CACHE_CHECK([for Perl >=5.10.0 with Time::HiRes::stat],
+ [ac_cv_path_PERL],
+ [AClocal_PATH_PROG_GLOBS_FEATURE_CHECK(
+ [PERL], [perl perl5* perl-5.*],
+ [AS_ECHO("$as_me:${as_lineno-$LINENO}: trying $ac_path_PERL") \
+ >&AS_MESSAGE_LOG_FD
+ $ac_path_PERL >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD -e '
+ use 5.010;
+ use Time::HiRes qw(stat);
+ 1;' \
+ && ac_cv_path_PERL=$ac_path_PERL ac_path_PERL_found=:],
+ [AC_MSG_ERROR([no acceptable perl could be found in \$PATH.
+Perl 5.10.0 or later is required, with Time::HiRes::stat.])])])
+ PERL=$ac_cv_path_PERL
+])
projects / thirdparty / autoconf.git / commitdiff
