This commit adds the configure option --with-abiversion and the CMake option
OPTION_ABI_VERSION. Both options can be set e.g. to 10304 to build with
FL_ABI_VERSION = 10304 (FLTK 1.3.4).
For IDE builds there are new files ide/<IDE-NAME>/FL/abi-version.h that
can be edited to change the ABI version before the FLTK lib is built.
Note that this file MUST be copied to the include/FL directory if the
IDE-built library is to be installed.
The default is FL_ABI_VERSION = FL_MAJOR*10000 + FL_MINOR*100 + 0, i.e.
10300 for all FLTK 1.3.x versions to keep binary compatibility (ABI).
Todo: more tests and more documentation.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10786 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
CMake Warning (dev) at CMake/export.cmake:48 (set):
Policy CMP0053 is not set: Simplify variable reference and escape sequence
evaluation. Run "cmake --help-policy CMP0053" for policy details. Use the
cmake_policy command to set the policy and suppress this warning.
Changed old-style @variable@ replacement to ${variable}.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10467 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
