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39 lines
1.4 KiB
Plaintext
39 lines
1.4 KiB
Plaintext
# tmpfile.m4 serial 2
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# Copyright (C) 2007, 2009-2017 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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# Written by Ben Pfaff.
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# Check whether to use a replacement tmpfile() function.
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# The native Windows tmpfile function always tries to put the temporary
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# file in the root directory. (This behaviour is even documented in
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# Microsoft's documentation!) This often fails for ordinary users who
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# don't have the permissions to write in the root directory.
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#
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# We can't test for tmpfile even at runtime, since our test program
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# might be running with privileges that allow it to write to the root
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# directory, even though tmpfile wouldn't work in general. Instead,
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# just test for a Windows platform (excluding Cygwin).
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AC_DEFUN([gl_FUNC_TMPFILE], [
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AC_REQUIRE([gl_STDIO_H_DEFAULTS])
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AC_CACHE_CHECK([whether tmpfile should be overridden],
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[gl_cv_func_tmpfile_unusable],
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[AC_EGREP_CPP([choke me], [
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#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
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choke me
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#endif
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],
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[gl_cv_func_tmpfile_unusable=yes],
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[gl_cv_func_tmpfile_unusable=no])])
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if test $gl_cv_func_tmpfile_unusable = yes; then
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REPLACE_TMPFILE=1
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fi
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])
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# Prerequisites of lib/tmpfile.c.
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AC_DEFUN([gl_PREREQ_TMPFILE], [:])
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