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https://issues.apache.org/jira/browse/HAWQ-1656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16592745#comment-16592745
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Mariano Gonzalez commented on HAWQ-1656:
----------------------------------------
```gcc -O3 -std=gnu99 -Wall -Wmissing-prototypes -Wpointer-arith -Wendif-labels
-Wformat-security -fno-strict-aliasing -fwrapv
-fno-aggressive-loop-optimizations -I/usr/include/libxml2
-I../../../../src/include -D_GNU_SOURCE
-I/data/hawq/depends/libhdfs3/build/install/usr/local/hawq/include
-I/data/hawq/depends/libyarn/build/install/usr/local/hawq/include -c -o gram.o
gram.c
gram.c: In function ‘caql_yyparse’:
gram.c:1370:41: error: ‘yyscanner’ undeclared (first use in this function)
yychar = yylex (&yylval, &yylloc, yyscanner);```
> Failure building on centos-7 using dockerfile present under
> incubator-hawq/contrib/hawq-docker/centos7-docker/hawq-dev
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: HAWQ-1656
> URL: https://issues.apache.org/jira/browse/HAWQ-1656
> Project: Apache HAWQ
> Issue Type: Bug
> Reporter: Mariano Gonzalez
> Assignee: Radar Lei
> Priority: Major
>
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