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.
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Note to devs: if I missed something, please mark follow-up commits with
[Version 1.3.4] so we can find the necessary commits for version updates.
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configure is used to set all needed version numbers in makeinclude.
makeinclude is included in Makefile's and the version numbers are used
to build the correct shared libs.
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Experimental. Thanks to Greg for finding this option.
If this option is supported by the linker, it is used when linking shared
libraries like libfltk_gl.so. With this option linking of the shared library
fails instead of postponing failure to linking programs with this library,
if any undefined references exist in this library. See STR #3191.
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Shared library sizes were about 4x the usual size, because makeinclude
and fltk-config always used "-g -O2", i.e. debugging compiler options.
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These help both shared lib size, as well as app size when statically linking. STR #3097
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Also change our fallback cursors to use this method, so that fallback
cursors are handled in a platform independent manner. STR #2660.
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we are building for. This makes cross compiling things a lot
easier.
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unused function strtoll() [resolves one part of STR #2965].
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Though the FL_PATCH_VERSION in Enumerations.H seems to be fine, I think.
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architectures when using configure --with-archflags option, thus file config.h should not contain
architecture-dependent definitions.
The fix: 1) don't use autoconf's endianness determination procedure because it can't give a result
that fits both big and little endian architectures.
2) have config.h include a mac-specific file under Mac OS.
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fluid to find its help files even if they are correctly installed.
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in configure.in. Also, applied suggestion in "Fixing configure.in for OSX universal builds"
from the fltk.development forum that architecture flags are not transmitted from
configure to the fltk-config script. This brings 2 benefits:
- A universal library can be prepared, and then used to build applications of any sort
of architectures.
- Makefiles using non-Apple compilers that don't know the -arch option can call fltk-config.
This new behavior in now made clear in file README.OSX.txt.
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try to find libpthread, unless we use Cygwin with the Cygwin dll,
since Windows always uses native threads.
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AC_PATH_PROG for ar and windres to get the cross-tools' paths.
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on case sensitive file systems like Unix/Linux, as discussed some time ago.
The new default is --without-links.
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by other files but added to the list of source files to be compiled
for Mac OS X only. Support files for autoconf/configure/make, CMake and Xcode
are also modified accordingly.
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