Port Bug Report: Will not compile under SCO OSR 5.0.5

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POSTGRESQL BUG REPORT TEMPLATE
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Your name : John J. Boris, Sr.
Your email address : jboris(at)adphila(dot)org

Category : install: compile
Severity : critical

Summary: Will not compile under SCO OSR 5.0.5

System Configuration
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Operating System : SCO OSR 5.0.5

PostgreSQL version : 6.4.2

Compiler used : SCO cc

Hardware:
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IBM PC Server 320 80mb RAM
SCO_SV jc 3.2 5.0.5 i386

Versions of other tools:
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Problem Description:
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I first do this:
jc:/usr/src/pgsql/postgresql-6.4.2/src/include$ ./configure --with-CC=cc --with
-perl --with-odbc --with-template=sco

Then I get the following error when I do:

gmake all > & make.log &

gmake[3]: Entering directory `/usr/src/pgsql/postgresql-6.4.2/src/backend/storag
e/buffer'
cc -b elf -I../../../include -I../../../backend -dy -I../.. -c s_lock.c -o
s_lock.o
"s_lock.c", line 43: error: Syntax error before or at: *
"s_lock.c", line 47: error: undefined symbol: lock
"s_lock.c", line 47: error: undefined symbol: file
"s_lock.c", line 47: error: undefined symbol: line
"s_lock.c", line 60: error: Syntax error before or at: *
"s_lock.c", line 64: error: undefined symbol: lock
"s_lock.c", line 74: error: undefined symbol: file
"s_lock.c", line 74: error: undefined symbol: line
gmake[3]: *** [s_lock.o] Error 1

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Test Case:
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Do what I put in the above paragraph.

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Solution:
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