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Implemented run time check of libburn version.

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This commit is contained in:
Thomas Schmitt
2008-01-23 21:18:25 +00:00
parent 8eede592cb
commit bf8a26d96c
3 changed files with 75 additions and 13 deletions
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29
libburn/trunk/configure.ac
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@ -9,7 +9,7 @@ AM_INIT_AUTOMAKE([subdir-objects])
dnl Note by ts A71207:
dnl
dnl BURN_MICRO_VERSION is _not_ the third component Z of libburn-X.Y.Z
dnl BURN_MICRO_VERSION was _not_ the third component Z of libburn-X.Y.Z
dnl but an eternal counter which leads to CURRENT. This misunderstanding
dnl caused a messed up sequence of CURRENTs.
dnl
@ -68,21 +68,34 @@ dnl .if MAJOR or MINOR version changes, be sure to change AC_INIT above to match
dnl ---------------------------------------------------------------------------
dnl
dnl Instead, LT_CURRENT, LT_REVISION and LT_AGE get set directly now.
dnl If BURN_VERSION changes, be sure to change AC_INIT above to match.
dnl
dnl SONAME of the emerging library is LT_CURRENT - LT_AGE.
dnl The linker will do no finer checks. Especially no age range check for
dnl the cdrskin binary. If SONAME matches, then the couple starts.
dnl
dnl Therefore a run time check is provided by libburn function burn_version().
dnl It returns the major, minor and micro revision of the library. This means
dnl BURN_*_VERSION kept its second job which does not comply to the usual ways
dnl of configure.ac . I.e. now *officially* this is the source code release
dnl version as announced to the public. It has no conection to SONAME or
dnl libtool version numbering.
dnl It rather feeds the API function burn_version().
dnl
dnl If BURN_*_VERSION changes, be sure to change AC_INIT above to match.
dnl
BURN_MAJOR_VERSION=0
BURN_MINOR_VERSION=4
BURN_DEV_VERSION=1
BURN_VERSION=$BURN_MAJOR_VERSION.$BURN_MINOR_VERSION.$BURN_DEV_VERSION
BURN_MICRO_VERSION=1
BURN_VERSION=$BURN_MAJOR_VERSION.$BURN_MINOR_VERSION.$BURN_MICRO_VERSION
AC_SUBST(BURN_MAJOR_VERSION)
AC_SUBST(BURN_MINOR_VERSION)
AC_SUBST(BURN_DEV_VERSION)
AC_SUBST(BURN_MICRO_VERSION)
AC_SUBST(BURN_VERSION)
dnl Libtool versioning
# LT_RELEASE=$BURN_MAJOR_VERSION.$BURN_MINOR_VERSION
LT_RELEASE=$BURN_MAJOR_VERSION.$BURN_MINOR_VERSION.$BURN_DEV_VERSION
LT_RELEASE=$BURN_MAJOR_VERSION.$BURN_MINOR_VERSION.$BURN_MICRO_VERSION
# SONAME = 10 - 6 = 4 . Library name = libburn.4.6.1
LT_CURRENT=10
LT_REVISION=1
LT_AGE=6
@ -97,8 +110,6 @@ AC_SUBST(LT_CURRENT_MINUS_AGE)
# ts A71207: This is done only not to break any old components
BURN_INTERFACE_AGE=$LT_REVISION
BURN_BINARY_AGE=`expr $LT_AGE + $BURN_INTERFACE_AGE`
BURN_MICRO_VERSION=`expr $LT_CURRENT + $BURN_INTERFACE_AGE`
AC_SUBST(BURN_MICRO_VERSION)
AC_SUBST(BURN_INTERFACE_AGE)
AC_SUBST(BURN_BINARY_AGE)