nested ifeq in debian/rules (makefile)
Richard Ulrich
I'm new to debian mentors. A while ago I read a blog article about how
to use only one branch for debian and ubuntu packages with different
dependencies.
http://raphaelhertzog.com/2010/09/27/different-dependencies-between-debian-and-ubuntu-but-common-source-package/
I tried to implement it, but I'm struggling.
Essentially, I'm not familiar with makefile syntax, and searching
makefile tutorials and asking in IRC chats helped, but couldn't fully
solve the problems I faced.
So, I hope the experts here can help find a good solution.
Here is what I have so far:
http://flightpred.svn.sourceforge.net/viewvc/flightpred/trunk/debian/rules?revision=297
But it basically boils down to the following behavior, which I don't
understand:
$ cat makefile
all:
@echo $(shell [ -e /etc/dpkg/origins/default ]; printf $$?)
@echo $(shell [ -e /etc/dpkg/origins/dabadabadu ]; printf $$?)
@echo $(shell [ ! -e /etc/dpkg/origins/default ]; printf $$?)
@echo $(shell [ ! -e /etc/dpkg/origins/dabadabadu ]; printf $$?)
ifeq ( $(shell [ -e /etc/dpkg/origins/default ]; printf $$?), 0)
ifeq ( $(shell dpkg-vendor --derives-from Ubuntu && echo yes), yes)
@echo "ubuntu maverick"
else
@echo "debian squeeze"
endif
else
@echo "debian lenny"
endif
$ make
0
1
1
0
debian lenny
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Jakub Wilk
>ifeq ( $(shell [ -e /etc/dpkg/origins/default ]; printf $$?), 0)
> ifeq ( $(shell dpkg-vendor --derives-from Ubuntu && echo yes), yes)
Remove spaces between "(" and "$".
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Jakub Wilk
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Richard Ulrich
I played around with the spaces a lot. The result was always the same.
ifeq ($(shell[-e /etc/dpkg/origins/default];printf $$?),0)
ifeq ($(shell dpkg-vendor --derives-from Ubuntu && echo yes),yes)
Rgds
Richard
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Jakub Wilk
>ifeq ($(shell[-e /etc/dpkg/origins/default];printf $$?),0)
How could this possibly work?
$ [-e /etc/dpkg/origins/default];printf $?
bash: [-e: command not found
127
I didn't tell you to remove space from every place you can think
of, but only two particular ones...
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Jakub Wilk
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Joachim Wiedorn
> ifeq ( $(shell [ -e /etc/dpkg/origins/default ]; printf $$?), 0)
> ifeq ( $(shell dpkg-vendor --derives-from Ubuntu && echo yes), yes)
> @echo "ubuntu maverick"
> else
> @echo "debian squeeze"
> endif
> else
> @echo "debian lenny"
> endif
I had the same problem some weeks ago. The solution is:
ifeq ($(shell dpkg-vendor --is Ubuntu && echo yes),yes)
...
endif
ifeq ($(shell dpkg-vendor --is Debian && echo yes),yes)
...
endif
---
Have a nice day.
Joachim (Germany)
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