10000 Fix bogus "extern int errno;" in back branches, per Andrew Dunstan. · larkly/postgres-docker@c969e30 · GitHub
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Fix bogus "extern int errno;" in back branches, per Andrew Dunstan.
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‎contrib/seg/segparse.y

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@@ -4,6 +4,7 @@
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#include <string.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <math.h>
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#include "segdata.h"
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#include "buffer.h"
@@ -18,7 +19,6 @@
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#undef yylex /* falure to redefine yylex will result in calling the */
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#define yylex seg_yylex /* wrong scanner when running inside postgres backend */
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extern int errno;
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extern int yylex(); /* defined as seg_yylex in segscan.c */
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extern int significant_digits( char *str ); /* defined in seg.c */
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