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Diffstat (limited to 'getlib.sh')
| -rw-r--r-- | getlib.sh | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/getlib.sh b/getlib.sh new file mode 100644 index 0000000..4835cf6 --- /dev/null +++ b/getlib.sh @@ -0,0 +1,42 @@ +#!/bin/sh + +GETVER="${0%/*}/getver.pl" +GDLIB_MAJOR=$("${GETVER}" MAJOR) +GDLIB_MINOR=$("${GETVER}" MINOR) +GDLIB_REVISION=$("${GETVER}" RELEASE) + +# Dynamic library version information +# See http://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info + +GDLIB_LT_CURRENT=3 +# This is the version where the soname (current above) changes. We use it +# to reset the revision base back to zero. It's a bit of a pain, but some +# systems restrict the revision range below to [0..255] (like OS X). +GDLIB_PREV_MAJOR=2 +GDLIB_PREV_MINOR=2 +# This isn't 100% correct, but it tends to be a close enough approximation +# for how we manage the codebase. It's rare to do a release that doesn't +# modify the library since this project is centered around the library. +GDLIB_LT_REVISION=$(( ((GDLIB_MAJOR - GDLIB_PREV_MAJOR) << 6) | ((GDLIB_MINOR - GDLIB_PREV_MINOR) << 3) | GDLIB_REVISION )) +GDLIB_LT_AGE=0 + +# The first three fields we feed into libtool and the OS target determines how +# they get used. The last two fields we feed into cmake. We use the same rules +# as Linux SONAME versioning in libtool, but cmake should handle it for us. +case $1 in +CURRENT) + printf '%s' "${GDLIB_LT_CURRENT}" + ;; +REVISION) + printf '%s' "${GDLIB_LT_REVISION}" + ;; +AGE) + printf '%s' "${GDLIB_LT_AGE}" + ;; +VERSION) + printf '%s' "$(( GDLIB_LT_CURRENT - GDLIB_LT_AGE )).${GDLIB_LT_AGE}.${GDLIB_LT_REVISION}" + ;; +SONAME) + printf '%s' "$(( GDLIB_LT_CURRENT - GDLIB_LT_AGE ))" + ;; +esac |