m4: Always extract major version number in CXX -dumpversion.
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@ -29,7 +29,7 @@ AC_DEFUN([AX_CXX_EPOCH],
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[
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AM_COND_IF(GCC,
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[
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ax_cv_cxx_epoch="`$CXX -dumpversion`"
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ax_cv_cxx_epoch="`$CXX -dumpversion | cut -d'.' -f1`"
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])
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AM_COND_IF(CLANG,
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