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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18888 91177308-0d34-0410-b5e6-96231b3b80d8
15 lines
396 B
Plaintext
15 lines
396 B
Plaintext
#
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# Check for Bison.
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#
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# This macro verifies that Bison is installed. If successful, then
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# 1) YACC is set to bison -y (to emulate YACC calls)
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# 2) BISON is set to bison
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#
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AC_DEFUN([AC_PROG_BISON],
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[AC_CACHE_CHECK([],[llvm_cv_has_bison],[AC_PROG_YACC()])
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if test "$YACC" != "bison -y"; then
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AC_MSG_ERROR([bison not found but required])
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else
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AC_SUBST(BISON,[bison],[location of bison])
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fi])
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