12 lines
333 B
Plaintext
12 lines
333 B
Plaintext
# AST_PROG_EGREP
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# -------------
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m4_ifndef([AST_PROG_EGREP], [AC_DEFUN([AST_PROG_EGREP],
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[AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
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[if echo a | (grep -E '(a|b)') >/dev/null 2>&1
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then ac_cv_prog_egrep='grep -E'
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else ac_cv_prog_egrep='egrep'
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fi])
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EGREP=$ac_cv_prog_egrep
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AC_SUBST([EGREP])
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])]) # AST_PROG_EGREP
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