[I] In Greenplum, compiling the AGE plugin fails with the error: 'void value not ignored as it ought to be [age]

[via GitHub]

legendzyb opened a new issue, #1975:
URL: https://github.com/apache/age/issues/1975

   **Describe the bug**
   I am trying to integrate the AGE plugin into Greenplum. Since Greenplum 7 is 
based on PostgreSQL 12, I think it should be compilable and usable. I used the 
version package of age-PG12-v1.5.0-rc0, but I encountered an error when 
compiling AGE separately. What is the problem? Or does AGE not support the 
Greenplum 7 database?
   
   **How are you accessing AGE (Command line, driver, etc.)?**
   none
   
   **What data setup do we need to do?**
   compile
   
   **What is the necessary configuration info needed?**
   none
   
   **What is the command that caused the error?**
   gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wendif-labels 
-Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv 
-fexcess-precision=standard -Wno-unused-but-set-variable 
-Werror=implicit-fallthrough=3 -Wno-format-truncation -Wno-stringop-truncation 
-O3 -std=gnu99   -Werror=uninitialized -Werror=implicit-function-declaration 
-fPIC -I.//src/include -I.//src/include/parser -I. -I./ 
-I/root/greenplum-db-7.0.0/include/postgresql/server 
-I/root/greenplum-db-7.0.0/include/postgresql/internal  -D_GNU_SOURCE 
-I/usr/include/libxml2   -c -o src/backend/parser/ag_scanner.o 
src/backend/parser/ag_scanner.c
   src/backend/parser/ag_scanner.l: In function ‘_scan_errmsg’:
   src/backend/parser/ag_scanner.l:1171:16: error: void value not ignored as it 
ought to be
        else
                   ^                                
   src/backend/parser/ag_scanner.l:1173:16: error: void value not ignored as it 
ought to be
    }
                   ^                                     
   src/backend/parser/ag_scanner.l: In function ‘_scan_errposition’:
   src/backend/parser/ag_scanner.l:1187:12: error: void value not ignored as it 
ought to be
    }
               ^               
   src/backend/parser/ag_scanner.l: In function ‘_scan_errmsg’:
   src/backend/parser/ag_scanner.l:1174:1: warning: control reaches end of 
non-void function [-Wreturn-type]
    
    ^
   src/backend/parser/ag_scanner.l: In function ‘_scan_errposition’:
   src/backend/parser/ag_scanner.l:1188:1: warning: control reaches end of 
non-void function [-Wreturn-type]
    
    ^
   make: *** [src/backend/parser/ag_scanner.o] Error 1
   
   **Expected behavior**
   Compilation successful
   
   **Environment (please complete the following information):**
   Linux version 3.10.0-1160.119.1.el7.x86_64 
(mockbu...@kbuilder.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 
4.8.5-44) (GCC) ) #1 SMP Tue Jun 4 14:43:51 UTC 2024
   gcc version 8.5.0 (GCC)
   flex 2.6.1
   bison (GNU Bison) 3.0.4
   
   **Additional context**
   Add any other context about the problem here.
   


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