Avoid substituting NAMEDATALEN, FLOAT4PASSBYVAL, and FLOAT8PASSBYVAL into

the postgres.bki file during build, because we want that file to be entirely
platform- and configuration-independent; else it can't safely be put into
/usr/share on multiarch machines.  We can do the substitution during initdb,
instead.  FLOAT4PASSBYVAL and FLOAT8PASSBYVAL are new breakage as of 8.4,
while the NAMEDATALEN hazard has been there all along but I guess no one
tripped over it.  Noticed while trying to build "universal" OS X binaries.

Author: tglsfdc

src/backend/catalog/genbki.sh

@@ -11,7 +11,7 @@
 #
 #
 # IDENTIFICATION
-#    $PostgreSQL: pgsql/src/backend/catalog/genbki.sh,v 1.44 2008/04/21 00:26:45 tgl Exp $
+#    $PostgreSQL: pgsql/src/backend/catalog/genbki.sh,v 1.45 2008/07/19 04:01:29 tgl Exp $
 #
 # NOTES
 #    non-essential whitespace is removed from the generated file.
@@ -59,7 +59,7 @@ do
             echo "  $CMDNAME [ -I dir ] --set-version=VERSION -o prefix files..."
             echo
             echo "Options:"
-            echo "  -I  path to pg_config_manual.h file"
+            echo "  -I  path to include files"
             echo "  -o  prefix of output files"
             echo "  --set-version  PostgreSQL version number for initdb cross-check"
             echo
@@ -106,22 +106,11 @@ TMPFILE="genbkitmp$$.c"
 trap "rm -f $TMPFILE ${OUTPUT_PREFIX}.bki.$$ ${OUTPUT_PREFIX}.description.$$ ${OUTPUT_PREFIX}.shdescription.$$" 0 1 2 3 15
 
 
-# Get NAMEDATALEN from pg_config_manual.h
-for dir in $INCLUDE_DIRS; do
-    if [ -f "$dir/pg_config_manual.h" ]; then
-        NAMEDATALEN=`grep '^#define[ 	]*NAMEDATALEN' $dir/pg_config_manual.h | $AWK '{ print $3 }'`
-        break
-    fi
-done
-
-# Get FLOAT4PASSBYVAL and FLOAT8PASSBYVAL from pg_config.h
-for dir in $INCLUDE_DIRS; do
-    if [ -f "$dir/pg_config.h" ]; then
-        FLOAT4PASSBYVAL=`grep '^#define[ 	]*FLOAT4PASSBYVAL' $dir/pg_config.h | $AWK '{ print $3 }'`
-        FLOAT8PASSBYVAL=`grep '^#define[ 	]*FLOAT8PASSBYVAL' $dir/pg_config.h | $AWK '{ print $3 }'`
-        break
-    fi
-done
+# CAUTION: be wary about what symbols you substitute into the .bki file here!
+# It's okay to substitute things that are expected to be really constant
+# within a given Postgres release, such as fixed OIDs.  Do not substitute
+# anything that could depend on platform or configuration.  (The right place
+# to handle those sorts of things is in initdb.c's bootstrap_template1().)
 
 # Get BOOTSTRAP_SUPERUSERID from catalog/pg_authid.h
 for dir in $INCLUDE_DIRS; do
@@ -172,9 +161,6 @@ sed -e "s/;[ 	]*$//g" \
     -e "s/^TransactionId/xid/g" \
     -e "s/(TransactionId/(xid/g" \
     -e "s/PGUID/$BOOTSTRAP_SUPERUSERID/g" \
-    -e "s/NAMEDATALEN/$NAMEDATALEN/g" \
-    -e "s/FLOAT4PASSBYVAL/$FLOAT4PASSBYVAL/g" \
-    -e "s/FLOAT8PASSBYVAL/$FLOAT8PASSBYVAL/g" \
     -e "s/PGNSP/$PG_CATALOG_NAMESPACE/g" \
 | $AWK '
 # ----------------

src/bin/initdb/initdb.c

@@ -42,7 +42,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  * Portions taken from FreeBSD.
  *
- * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.157 2008/06/26 01:35:45 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/initdb/initdb.c,v 1.158 2008/07/19 04:01:29 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1313,6 +1313,7 @@ bootstrap_template1(char *short_version)
 	char	   *talkargs = "";
 	char	  **bki_lines;
 	char		headerline[MAXPGPATH];
+	char		buf[64];
 
 	printf(_("creating template1 database in %s/base/1 ... "), pg_data);
 	fflush(stdout);
@@ -1337,6 +1338,17 @@ bootstrap_template1(char *short_version)
 		exit_nicely();
 	}
 
+	/* Substitute for various symbols used in the BKI file */
+
+	sprintf(buf, "%d", NAMEDATALEN);
+	bki_lines = replace_token(bki_lines, "NAMEDATALEN", buf);
+
+	bki_lines = replace_token(bki_lines, "FLOAT4PASSBYVAL",
+							  FLOAT4PASSBYVAL ? "true" : "false");
+
+	bki_lines = replace_token(bki_lines, "FLOAT8PASSBYVAL",
+							  FLOAT8PASSBYVAL ? "true" : "false");
+
 	bki_lines = replace_token(bki_lines, "POSTGRES", username);
 
 	bki_lines = replace_token(bki_lines, "ENCODING", encodingid);

src/tools/msvc/Genbki.pm

@@ -11,7 +11,7 @@
 #
 #
 # IDENTIFICATION
-#    $PostgreSQL: pgsql/src/tools/msvc/Genbki.pm,v 1.4 2008/04/21 00:26:47 tgl Exp $
+#    $PostgreSQL: pgsql/src/tools/msvc/Genbki.pm,v 1.5 2008/07/19 04:01:29 tgl Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -33,19 +33,6 @@ sub genbki
     $version =~ /^(\d+\.\d+)/ || die "Bad format verison $version\n";
     my $majorversion = $1;
 
-    my $pgext = read_file("src/include/pg_config_manual.h");
-    $pgext =~ /^#define\s+NAMEDATALEN\s+(\d+)$/mg
-      || die "Could not read NAMEDATALEN from pg_config_manual.h\n";
-    my $namedatalen = $1;
-
-    my $pgconf = read_file("src/include/pg_config.h");
-    $pgconf =~ /^#define\s+FLOAT4PASSBYVAL\s+(\w+)$/mg
-      || die "Could not read FLOAT4PASSBYVAL from pg_config.h\n";
-    my $float4passbyval = $1;
-    $pgconf =~ /^#define\s+FLOAT8PASSBYVAL\s+(\w+)$/mg
-      || die "Could not read FLOAT8PASSBYVAL from pg_config.h\n";
-    my $float8passbyval = $1;
-
     my $pgauthid = read_file("src/include/catalog/pg_authid.h");
     $pgauthid =~ /^#define\s+BOOTSTRAP_SUPERUSERID\s+(\d+)$/mg
       || die "Could not read BOOTSTRAUP_SUPERUSERID from pg_authid.h\n";
@@ -78,9 +65,6 @@ sub genbki
     $indata =~ s{^TransactionId}{xid}gm;
     $indata =~ s{\(TransactionId}{(xid}g;
     $indata =~ s{PGUID}{$bootstrapsuperuserid}g;
-    $indata =~ s{NAMEDATALEN}{$namedatalen}g;
-    $indata =~ s{FLOAT4PASSBYVAL}{$float4passbyval}g;
-    $indata =~ s{FLOAT8PASSBYVAL}{$float8passbyval}g;
     $indata =~ s{PGNSP}{$pgcatalognamespace}g;
 
     #print $indata;