61 lines
2.0 KiB
Plaintext
61 lines
2.0 KiB
Plaintext
dnl Macros to configure GPGME
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dnl Copyright (C) 2004 g10 Code GmbH
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dnl
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dnl This file is part of GPGME.
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dnl
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dnl GPGME is free software; you can redistribute it and/or modify it
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dnl under the terms of the GNU Lesser General Public License as
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dnl published by the Free Software Foundation; either version 2.1 of the
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dnl License, or (at your option) any later version.
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dnl
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dnl GPGME is distributed in the hope that it will be useful, but WITHOUT
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dnl ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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dnl Public License for more details.
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dnl
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dnl You should have received a copy of the GNU Lesser General Public
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dnl License along with this program; if not, write to the Free Software
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dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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dnl GNUPG_CHECK_VA_COPY()
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dnl Do some check on how to implement va_copy.
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dnl May define MUST_COPY_VA_BY_VAL.
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dnl Actual test code taken from glib-1.1.
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AC_DEFUN([GNUPG_CHECK_VA_COPY],
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[ AC_MSG_CHECKING(whether va_lists must be copied by value)
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AC_CACHE_VAL(gnupg_cv_must_copy_va_byval,[
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if test "$cross_compiling" = yes; then
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gnupg_cv_must_copy_va_byval=no
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else
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gnupg_cv_must_copy_va_byval=no
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AC_TRY_RUN([
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#include <stdarg.h>
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void f (int i, ...)
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{
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va_list args1, args2;
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va_start (args1, i);
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args2 = args1;
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if (va_arg (args2, int) != 42 || va_arg (args1, int) != 42)
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exit (1);
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va_end (args1);
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va_end (args2);
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}
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int main()
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{
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f (0, 42);
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return 0;
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}
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],gnupg_cv_must_copy_va_byval=yes)
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fi
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])
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if test "$gnupg_cv_must_copy_va_byval" = yes; then
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AC_DEFINE(MUST_COPY_VA_BYVAL,1,[used to implement the va_copy macro])
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fi
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if test "$cross_compiling" = yes; then
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AC_MSG_RESULT(assuming $gnupg_cv_must_copy_va_byval)
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else
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AC_MSG_RESULT($gnupg_cv_must_copy_va_byval)
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fi
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])
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