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Commit2660803

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Only look for bison as YACC; other yaccs need to be selected explicitly.
When no suitable YACC is configured, supply useful informational messagesto users. (Same way flex has been handled for a while.)
1 parent20edc4a commit2660803

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10 files changed

+388
-347
lines changed

10 files changed

+388
-347
lines changed

‎config/missing‎

Lines changed: 7 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -5,27 +5,27 @@
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# behavior when certain utility programs are missing.
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case$1in
8-
flex)
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# `missing flex <input> <output>'
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flex|bison)
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# `missing flex|bison <input> <output>'
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input=$2
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output=$3
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iftest -f"$output";then
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echo"\
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***
15-
WARNING:\`flex' is missing on your system. You should only need it
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WARNING:\`$1' is missing on your system. You should only need it
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if you changed the file\`$input'; these changes will not take effect.
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You can getflex from a GNU mirror site.
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You can get$1 from a GNU mirror site.
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***"
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echo"touch$output"
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touch"$output"
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exit 0
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else# ! test -f $output
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echo"\
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***
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ERROR:\`flex' is missing on your system. It is needed to create the
26-
file\`$output'. You can either getflex from a GNU mirror site
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ERROR:\`$1' is missing on your system. It is needed to create the
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file\`$output'. You can either get$1 from a GNU mirror site
2727
or download an official distribution of PostgreSQL, which contains
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pre-packagedflex output.
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pre-packaged$1 output.
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***"
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exit 1
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fi

‎config/programs.m4‎

Lines changed: 8 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,4 @@
1-
# $Header: /cvsroot/pgsql/config/programs.m4,v 1.3 2001/02/06 19:20:16 petere Exp $
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# $Header: /cvsroot/pgsql/config/programs.m4,v 1.4 2001/02/10 22:31:42 petere Exp $
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# PGAC_PATH_FLEX
@@ -46,19 +46,16 @@ fi
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if test x"$pgac_cv_path_flex" = x"no"; then
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if test -n "$pgac_broken_flex"; then
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AC_MSG_WARN([
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***
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The Flex version 2.5.3 you have at $pgac_broken_flex contains a bug. You
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should get version 2.5.4 or later.
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###])
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*** The Flex version 2.5.3 you have at $pgac_broken_flex contains a bug. You
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*** should get version 2.5.4 or later.])
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fi
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AC_MSG_WARN([
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***
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Without Flex you won't be able to build PostgreSQL from scratch, or change
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any of the scanner definition files. You can obtain Flex from a GNU mirror
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site. (If you are using the official distribution of PostgreSQL then you
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do not need to worry about this because the lexer files are pre-generated.)
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***])
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*** Without Flex you will not be able to build PostgreSQL from CVS or
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*** change any of the scanner definition files. You can obtain Flex from
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*** a GNU mirror site. (If you are using the official distribution of
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*** PostgreSQL then you do not need to worry about this because the Flex
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*** output is pre-generated.)])
6259
fi
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if test x"$pgac_cv_path_flex" = x"no"; then

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