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Viewing changes to common/m4/as-compiler-flag.m4

  • Committer: Bazaar Package Importer
  • Author(s): Sebastian Dröge
  • Date: 2008-12-12 10:22:29 UTC
  • mfrom: (1.1.6 upstream)
  • mto: (3.2.2 jaunty) (1.2.2 upstream)
  • mto: This revision was merged to the branch mainline in revision 6.
  • Revision ID: james.westby@ubuntu.com-20081212102229-7c3etvaoy9ys0x28
Tags: upstream-0.11.3
Import upstream version 0.11.3

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common/m4/as-compiler-flag.m4
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dnl autostars m4 macro for detection of compiler flags
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dnl David Schleef <ds@schleef.org>
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dnl $Id: as-compiler-flag.m4,v 1.1 2004/06/01 09:33:45 thomasvs Exp $
 
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dnl Tim-Philipp Müller <tim centricular net>
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dnl AS_COMPILER_FLAG(CFLAGS, ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED])
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dnl Tries to compile with the given CFLAGS.
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  AC_MSG_RESULT([$flag_ok])
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])
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dnl AS_CXX_COMPILER_FLAG(CPPFLAGS, ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED])
 
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dnl Tries to compile with the given CPPFLAGS.
 
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dnl Runs ACTION-IF-ACCEPTED if the compiler can compile with the flags,
 
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dnl and ACTION-IF-NOT-ACCEPTED otherwise.
 
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AC_DEFUN([AS_CXX_COMPILER_FLAG],
 
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[
 
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  AC_REQUIRE([AC_PROG_CXX])
 
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  AC_MSG_CHECKING([to see if c++ compiler understands $1])
 
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  save_CPPFLAGS="$CPPFLAGS"
 
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  CPPFLAGS="$CPPFLAGS $1"
 
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  AC_LANG_PUSH(C++)
 
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  AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no])
 
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  CPPFLAGS="$save_CPPFLAGS"
 
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  if test "X$flag_ok" = Xyes ; then
 
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    $2
 
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    true
 
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  else
 
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    $3
 
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    true
 
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  fi
 
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  AC_LANG_POP(C++)
 
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  AC_MSG_RESULT([$flag_ok])
 
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])
 
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