Support running a build.script for dsc builds as an alternative to (though usually...

diff --git a/build b/build
index adb968a..344ccab 100755 (executable)
--- a/build
+++ b/build
@@ -1497,7 +1497,17 @@ for SPECFILE in "${SPECFILES[@]}" ; do
     fi
 
     if test "$BUILDTYPE" = dsc ; then
-       chroot $BUILD_ROOT su -c "cd $TOPDIR/BUILD && dpkg-buildpackage -us -uc -rfakeroot-tcp" - $BUILD_USER < /dev/null && BUILD_SUCCEEDED=true
+       # Checks to see if a build script should be used
+       # this allows the build environment to be manipulated
+       # and alternate build commands can be used
+       DSC_BUILD_CMD="dpkg-buildpackage -us -uc -rfakeroot-tcp"
+       if test -e $BUILD_ROOT/$TOPDIR/SOURCES/build.script ; then
+           echo "Sourcing build.script to build - it should normally run 'dpkg-buildpackage -us -uc -rfakeroot-tcp'"
+           DSC_BUILD_CMD="source $TOPDIR/SOURCES/build.script"
+           chmod +x $BUILD_ROOT/$TOPDIR/SOURCES/build.script
+       fi
+       chroot $BUILD_ROOT su -c "cd $TOPDIR/BUILD && $DSC_BUILD_CMD" - $BUILD_USER < /dev/null && BUILD_SUCCEEDED=true
+
        mkdir -p $BUILD_ROOT/$TOPDIR/DEBS
        for DEB in $BUILD_ROOT/$TOPDIR/*.deb ; do
            test -e "$DEB" && mv "$DEB" "$BUILD_ROOT/$TOPDIR/DEBS"