Re: [Tiny-cobol-users] options for subprogram linkages.

[David E. <de...@us...>]

John R. Culleton wrote:

 > I fixed this in one htcobolrc but the system is
 > finding another. So I will change all of them.

You can check which one TC is using the following commands.

$env | grep 'TCOB_'
TCOB_OPTIONS_PATH=/usr/local/share/htcobol
TCOB_RTCONFIG_PATH=/usr/local/share/htcobol


 >> If you are working with libraries, same youself
 >> some work by using make files.
 >
 > A script also helps such as:
 > htcobol -c -P -F -I../copybooks -I. testmain.cbl
 > htcobol -c -P  -F -I../copybooks -I. testcalled.cbl
 > gcc -o testprog testmain.o \
 > testcalled.o   -L/usr/local/lib -lhtcobol -ldb -ldl -lm
 >
 > I will generalize this to take different filenames
 > using $1, $2 etc.

Yes, that will work.

However make files will do a lot of the work for you, once setup.
They really are indispensable for projects with more than one or two 
sources.

For example if you have one sub-program which is used (statically
linked) in 5 modules (programs).
If you change that sub-program you have find and rebuild all of the
modules.
Make can detect the change and re-compile and link the dependencies
where necessary.

A trivial example can be found in 'test.code/t15'.

$make test15
htcobol -c -P -I../copybooks -I. test15.cob
htcobol -c -P -I../copybooks -I. test15a.cob
gcc -I/usr/local/include -o test15b.o -c test15b.c
gcc -o test15 test15.o test15a.o test15b.o \
     -L/usr/local/lib -lhtcobol -ldb1 -ldl -lm

$touch test15a.cob

$make test15
htcobol -c -P -I../copybooks -I. test15a.cob
gcc -o test15 test15.o test15a.o test15b.o  \
     -L/usr/local/lib -lhtcobol -ldb1 -ldl -lm

Hint:
If you plan to use make files for COBOL projects, copy the 
'test.code/config/COB.rules.in' file to 'config' directory 
(/usr/local/config ?).
Adding the following lines to the make file will enable make to build 
objects from files with COBOL suffixes.

COB=htcobol
COPYBOOKS= -I../copybooks
COBFLAGS=-P ${COPYBOOKS}
...
include ${prefix}/config/COB.rules.in

# contents of 'COB.rules.in'
# Rules for compiling COBOL sources
.SUFFIX: .cob .cbl .o
%.o: %.cob
	$(COB) -c  $(COBFLAGS) $<
#	$(COB) $(COBFLAGS) $<
%.o: %.cbl
	$(COB) -c $(COBFLAGS) $<
#	$(COB) $(COBFLAGS) $<


Hope this helps.