d94a43d5c3
Starting with autoconf 2.70, obsolescence warnings are output by default. To keep the script as compatible as possible, I build autoconf 2.60 and ran the autoupdate that came with it on configure.ac and all m4 files.
17 lines
521 B
Plaintext
17 lines
521 B
Plaintext
dnl @synopsis XIPH_ADD_CXXFLAGS
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dnl
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dnl Add the given option to CXXFLAGS, if it doesn't break the compiler
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AC_DEFUN([XIPH_ADD_CXXFLAGS],
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[AC_MSG_CHECKING([if $CXX accepts $1])
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AC_LANG_ASSERT([C++])
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ac_add_cxxflags__old_cxxflags="$CXXFLAGS"
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CXXFLAGS="$1"
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AC_LINK_IFELSE([AC_LANG_PROGRAM([[
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#include <cstdio>
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]], [[puts("Hello, World!"); return 0;]])],[AC_MSG_RESULT(yes)
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CXXFLAGS="$ac_add_cxxflags__old_cxxflags $1"],[AC_MSG_RESULT(no)
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CXXFLAGS="$ac_add_cxxflags__old_cxxflags"
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])
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])# XIPH_ADD_CXXFLAGS
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