problem when creating my package

Asked by Poste on 2020-03-31

When launchpad tries to compile my source program, it fails with the following error:

dpkg-buildpackage: info: source package test
dpkg-buildpackage: info: source version 1.9-1
dpkg-buildpackage: info: source distribution eoan
 dpkg-source --before-build .
dpkg-buildpackage: info: host architecture amd64
 fakeroot debian/rules clean
dh clean
 make -j4 clean
make[1]: Entering directory '/<<PKGBUILDDIR>>'
rm -rf *.o
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
 debian/rules build
dh build
 make -j4 "INSTALL=install --strip-program=true"
make[1]: Entering directory '/<<PKGBUILDDIR>>'
gcc -o hello.o -c src/hello.c -W -Wall -ansi -pedantic
gcc -o main.o -c src/main.c -W -Wall -ansi -pedantic
gcc -o hello.exe src/hello.o src/main.o
install -m 644 hello.exe /usr/local/bin
install: cannot create regular file '/usr/local/bin/hello.exe': Permission denied
make[1]: *** [Makefile:24: install] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
dh_auto_build: make -j4 "INSTALL=install --strip-program=true" returned exit code 2
make: *** [debian/rules:18: build] Error 255
dpkg-buildpackage: error: debian/rules build subprocess returned exit status 2

Here is my makefile

CFLAGS=-W -Wall -ansi -pedantic

all: install

hello.exe: hello.o main.o
 $(CC) -o hello.exe src/hello.o src/main.o $(LDFLAGS)

hello.o: src/hello.c
 $(CC) -o hello.o -c src/hello.c $(CFLAGS)

main.o: src/main.c src/hello.h
 $(CC) -o main.o -c src/main.c $(CFLAGS)

 rm -rf *.o

mrproper: clean
 rm -rf $(EXEC)

install: hello.exe
 install -m 644 hello.exe /usr/local/bin

How to fix that?

Thanks in advance.

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Hi, Poste.

This doesn't seem to be a problem related to Launchpad itself.

The `all` target on your Makefile seems to be trying to install the program, rather than just building it. It shouldn't try to install, since it will run with an unprivileged user on Launchpad's builders (that means that it will not be able to create a file under /usr/local/bin/.

You might want to take a look at Launchpad's guide to create a new source package ( and the Ubuntu's packaging guide (

Other than that, I suggest you test building your package locally first before building it on Launchpad, since it will be faster for you to iterate and fix problems. On Ubuntu's packaging guide you should have a tutorial on how to setup your build locally for testing: .

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