'cd' in debian/rules

[Matt G.]

Hello all,

 I'm working on building my first Ubuntu package (A simple graphics
 library from my uni:
http://graphics.cs.uiuc.edu/~garland/dist/libgfx-1.1.0-doc/ ).
  I am loosely following the procedure in the Complete Packaging Guide
 (https://wiki.ubuntu.com/PackagingGuide/Complete ).

 I'm up to the point of running debuild but have run into trouble.  The
 normal build sequence for this library is "./configure; cd src; make".
  So, I've edited the debian/rules file that was autogenerated by
 dh_make to add the "cd src" command to the build-stamp target right
 before the line containing $(MAKE).  I also added a 'cd src' command
 for the clean target.  However, the cd command does not seem to get
 executed for build-stamp: or clean:.

 matt at Aluminumy:~/Packaging/libgfx/libgfx-debhelper-1.1.0$ debuild
  fakeroot debian/rules clean
 dh_testdir
 dh_testroot
 rm -f build-stamp
 # Add here commands to clean up after the build process.
 # -/usr/bin/make distclean
 cd src
 /usr/bin/make clean
 make[1]: Entering directory
`/home/matt/Packaging/libgfx/libgfx-debhelper-1.1.0'
 make[1]: *** No rule to make target `clean'.  Stop.
 make[1]: Leaving directory `/home/matt/Packaging/libgfx/libgfx-debhelper-1.1.0'
 make: [clean] Error 2 (ignored)
 cd ..
 rm -f config.sub config.guess
 dh_clean
  dpkg-source -b libgfx-debhelper-1.1.0
 dpkg-source: warning: source directory './libgfx-debhelper-1.1.0' is
 not <sourcepackage>-<upstreamversion> 'libgfx-1.1.0'
 dpkg-source: warning: .orig directory name libgfx-debhelper-1.1.0.orig
 is not <package>-<upstreamversion> (wanted libgfx-1.1.0.orig)
 dpkg-source: building libgfx using existing libgfx_1.1.0.orig.tar.gz
 dpkg-source: building libgfx in libgfx_1.1.0-0ubuntu0.diff.gz
 dpkg-source: warning: executable mode 0755 of 'config.status' will not
 be represented in diff
 dpkg-source: building libgfx in libgfx_1.1.0-0ubuntu0.dsc
  debian/rules build
 dh_testdir
 # Add here commands to compile the package.
 cd src
 /usr/bin/make
 make[1]: Entering directory
`/home/matt/Packaging/libgfx/libgfx-debhelper-1.1.0'
 make[1]: *** No targets specified and no makefile found.  Stop.
 make[1]: Leaving directory `/home/matt/Packaging/libgfx/libgfx-debhelper-1.1.0'
 make: *** [build-stamp] Error 2
 debuild: fatal error at line 1247:
 debian/rules build failed