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# This file is part of Autoconf. -*- Autoconf -*- |
# This file is part of Autoconf. -*- Autoconf -*- |
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# Type related macros: existence, sizeof, and structure members. |
# Type related macros: existence, sizeof, and structure members. |
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# Copyright 2000, 2001 |
# Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. |
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# Free Software Foundation, Inc. |
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# |
# |
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# This program is free software; you can redistribute it and/or modify |
# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
# it under the terms of the GNU General Public License as published by |
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# Check whether the type TYPE is supported by the system, maybe via the |
# Check whether the type TYPE is supported by the system, maybe via the |
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# the provided includes. This macro implements the former task of |
# the provided includes. This macro implements the former task of |
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# AC_CHECK_TYPE, with one big difference though: AC_CHECK_TYPE was |
# AC_CHECK_TYPE, with one big difference though: AC_CHECK_TYPE was |
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# grepping in the headers, which, BTW, led to many problems until |
# grepping in the headers, which, BTW, led to many problems until the |
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# the egrep expression was correct and did not given false positives. |
# extended regular expression was correct and did not given false positives. |
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# It turned out there are even portability issues with egrep... |
# It turned out there are even portability issues with egrep... |
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# |
# |
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# The most obvious way to check for a TYPE is just to compile a variable |
# The most obvious way to check for a TYPE is just to compile a variable |