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Viewing changes to gl/m4/absolute-header.m4

  • Committer: Bazaar Package Importer
  • Author(s): Thomas Viehmann
  • Date: 2008-10-04 10:25:53 UTC
  • mfrom: (5.1.15 intrepid)
  • Revision ID: james.westby@ubuntu.com-20081004102553-fv62pp8dsitxli47
Tags: 2.0.9-3.1
http://bugs.debian.org/499569
* Non-maintainer upload.
* agent/gpg-agent.c: Deinit the threading library before exec'ing
  the command to run in --daemon mode. And because that still doesn't
  restore the sigprocmask, do that manually. Closes: #499569

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gl/m4/absolute-header.m4
 
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# absolute-header.m4 serial 6
 
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dnl Copyright (C) 2006 Free Software Foundation, Inc.
 
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dnl This file is free software; the Free Software Foundation
 
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dnl gives unlimited permission to copy and/or distribute it,
 
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dnl with or without modifications, as long as this notice is preserved.
 
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dnl From Derek Price.
 
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# gl_ABSOLUTE_HEADER(HEADER1 HEADER2 ...)
 
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# ---------------------------------------
 
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# Find the absolute name of a header file, assuming the header exists.
 
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# If the header were sys/inttypes.h, this macro would define
 
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# ABSOLUTE_SYS_INTTYPES_H to the `""' quoted absolute name of sys/inttypes.h
 
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# in config.h
 
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# (e.g. `#define ABSOLUTE_SYS_INTTYPES_H "///usr/include/sys/inttypes.h"').
 
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# The three "///" are to pacify Sun C 5.8, which otherwise would say
 
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# "warning: #include of /usr/include/... may be non-portable".
 
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# Use `""', not `<>', so that the /// cannot be confused with a C99 comment.
 
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AC_DEFUN([gl_ABSOLUTE_HEADER],
 
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[AC_LANG_PREPROC_REQUIRE()dnl
 
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AC_FOREACH([gl_HEADER_NAME], [$1],
 
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  [AS_VAR_PUSHDEF([gl_absolute_header],
 
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                  [gl_cv_absolute_]m4_quote(m4_defn([gl_HEADER_NAME])))dnl
 
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  AC_CACHE_CHECK([absolute name of <]m4_quote(m4_defn([gl_HEADER_NAME]))[>],
 
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    m4_quote(m4_defn([gl_absolute_header])),
 
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    [AS_VAR_PUSHDEF([ac_header_exists],
 
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                    [ac_cv_header_]m4_quote(m4_defn([gl_HEADER_NAME])))dnl
 
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    AC_CHECK_HEADERS_ONCE(m4_quote(m4_defn([gl_HEADER_NAME])))dnl
 
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    if test AS_VAR_GET(ac_header_exists) = yes; then
 
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      AC_LANG_CONFTEST([AC_LANG_SOURCE([[#include <]]m4_dquote(m4_defn([gl_HEADER_NAME]))[[>]])])
 
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dnl eval is necessary to expand ac_cpp.
 
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dnl Ultrix and Pyramid sh refuse to redirect output of eval, so use subshell.
 
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      AS_VAR_SET(gl_absolute_header,
 
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[`(eval "$ac_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
 
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sed -n '\#/]m4_quote(m4_defn([gl_HEADER_NAME]))[#{s#.*"\(.*/]m4_quote(m4_defn([gl_HEADER_NAME]))[\)".*#\1#;s#^/[^/]#//&#;p;q;}'`])
 
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    fi
 
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    AS_VAR_POPDEF([ac_header_exists])dnl
 
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    ])dnl
 
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  AC_DEFINE_UNQUOTED(AS_TR_CPP([ABSOLUTE_]m4_quote(m4_defn([gl_HEADER_NAME]))),
 
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                     ["AS_VAR_GET(gl_absolute_header)"],
 
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                     [Define this to an absolute name of <]m4_quote(m4_defn([gl_HEADER_NAME]))[>.])
 
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  AS_VAR_POPDEF([gl_absolute_header])dnl
 
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])dnl
 
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])# gl_ABSOLUTE_HEADER