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Viewing changes to m4/pandora_visibility.m4

  • Committer: Monty Taylor
  • Date: 2010-08-21 03:34:31 UTC
  • mto: (1725.1.3 build)
  • mto: This revision was merged to the branch mainline in revision 1726.
  • Revision ID: mordred@inaugust.com-20100821033431-e0czq298av2aqx25
https://launchpad.net/bugs/621544
Rearranged how we set -fvisibility, allowing us to turn it on on a
library-by-library basis even if we specify skip-visiblity as an argument to
PANDORA_CANONICAL.

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Lines of Context:
m4/pandora_visibility.m4
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dnl Set the variable CFLAG_VISIBILITY.
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dnl Defines and sets the variable HAVE_VISIBILITY.
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AC_DEFUN([PANDORA_VISIBILITY],
 
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AC_DEFUN([PANDORA_CHECK_VISIBILITY],
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[
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  AC_REQUIRE([AC_PROG_CC])
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  AC_REQUIRE([PANDORA_PLATFORM])
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    AC_MSG_RESULT([$gl_cv_cc_visibility])
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    if test $gl_cv_cc_visibility = yes; then
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      CFLAG_VISIBILITY="-fvisibility=hidden"
 
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      NO_VISIBILITY="-fvisibility=default"
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      HAVE_VISIBILITY=1
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    fi
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  ])
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  AS_IF([test "x$SUNCC" = "xyes"],[
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    CFLAG_VISIBILITY="-xldscope=hidden"
 
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    NO_VISIBILITY="-xldscope=global"
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    HAVE_VISIBILITY=1
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  ])
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  AC_SUBST([CFLAG_VISIBILITY])
 
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  AC_SUBST([NO_VISIBILITY])
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  AC_SUBST([HAVE_VISIBILITY])
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  AC_DEFINE_UNQUOTED([HAVE_VISIBILITY], [$HAVE_VISIBILITY],
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    [Define to 1 or 0, depending whether the compiler supports simple visibility declarations.])
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])
 
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AC_DEFUN([PANDORA_ENABLE_VISIBILITY],[
 
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  AC_REQUIRE([PANDORA_CHECK_VISIBILITY])
 
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  AM_CFLAGS="${AM_CFLAGS} ${CFLAG_VISIBILITY}"
 
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  AM_CXXFLAGS="${AM_CXXFLAGS} ${CFLAG_VISIBILITY}"
 
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])