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* tests/statesave.m4: New file. * tests/Makefile.am (EXTRA_DIST): Distribute it. * tests/local.at (AT_CONFIGURE_AC): Reuse file, rather than repeating inline definition of AC_STATE_SAVE. (AT_CHECK_ENV): Factor code... (_AT_CHECK_ENV): ...into shell function. * tests/m4sh.at (AT_DATA_LINENO): Avoid churn in testsuite. Signed-off-by: Eric Blake <ebb9@byu.net>
35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
# statesave.m4 serial 1
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# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
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# 2009 Free Software Foundation, Inc.
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# AC_STATE_SAVE(FILE)
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# -------------------
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# Save the shell variables and directory listing. AT_CHECK_ENV uses these to
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# confirm that no test modifies variables outside the Autoconf namespace or
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# leaves temporary files. AT_CONFIG_CMP uses the variable dumps to confirm
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# that tests have the same side effects regardless of caching.
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#
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# The sed script duplicates uniq functionality (thanks to 'info sed
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# uniq' for the recipe), in order to avoid a MacOS 10.5 bug where
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# readdir can list a file multiple times in a rapidly changing
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# directory, while avoiding yet another fork.
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m4_defun([AC_STATE_SAVE],
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[(set) 2>&1 | sort >state-env.$1
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ls | sed '/^at-/d;/^state-/d;/^config\./d
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h
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:b
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$b
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N
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/^\(.*\)\n\1$/ {
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g
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bb
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}
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$b
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P
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D' >state-ls.$1
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])# AC_STATE_SAVE
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