refactor the buildsystem to extract library versions from one file,

so it is not needed to change x-files to just increase a version number
(because this is far to easy to forget one of the files, which will not
result in failures or is bad in general, but is inconsitent.)

1 files changed, 14 insertions, 0 deletions

diff --git a/buildlib/libversion.mak b/buildlib/libversion.mak
new file mode 100644
index 000000000..796c956e7
--- /dev/null
+++ b/buildlib/libversion.mak
@@ -0,0 +1,14 @@
+# -*- make -*-
+# Version number of libapt-pkg.
+# Please increase MAJOR with each ABI break,
+# with each non-ABI break to the lib, please increase RELEASE.
+# The versionnumber is extracted from apt-pkg/init.h - see also there.
+LIBAPTPKG_MAJOR=$(shell awk -v ORS='.' '/^\#define APT_PKG_M/ {print $$3}' $(BASE)/apt-pkg/init.h | sed 's/\.$$//')
+LIBAPTPKG_RELEASE=$(shell grep -E '^\#define APT_PKG_RELEASE' $(BASE)/apt-pkg/init.h | cut -d ' ' -f 3)
+
+# Version number of libapt-inst
+# Please increase MAJOR with each ABI break,
+# with each non-ABI break to the lib, please increase MINOR.
+# The versionnumber is extracted from apt-inst/makefile - see also there.
+LIBAPTINST_MAJOR=$(shell egrep '^MAJOR=' $(BASE)/apt-inst/makefile |cut -d '=' -f 2)
+LIBAPTINST_MINOR=$(shell egrep '^MINOR=' $(BASE)/apt-inst/makefile |cut -d '=' -f 2)