PR bootstrap/21230
* warnings.m4 (ACX_PROG_CC_WARNING_ALMOST_PEDANTIC): Add double quotes around GCC variable.
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@@ -50,7 +50,7 @@ AC_DEFUN([ACX_PROG_CC_WARNING_ALMOST_PEDANTIC],
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AC_SUBST([WARN_PEDANTIC])dnl
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AS_VAR_PUSHDEF([acx_Pedantic], [acx_cv_prog_cc_pedantic_$1])dnl
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WARN_PEDANTIC=
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AS_IF([test $GCC = yes],
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AS_IF([test "$GCC" = yes],
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[AC_CACHE_CHECK([whether $CC supports -pedantic $1], acx_Pedantic,
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[save_CFLAGS="$CFLAGS"
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CFLAGS="-pedantic $1"
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