17439423f8
to NULL. This allows custom close functions to delete the FT_STREAM object. Add API to get information about SFNT tables. * include/freetype/internal/services/svsfnt.h (FT_SFNT_Table_Info_Func): New typedef. (SFNT_Table): Add it. * src/base/ftobjs (FT_Sfnt_Table_Info): New function. * include/freetype/tttables.h: Updated. * src/sfnt/sfdriver.c (sfnt_table_info): New function. (sfnt_service_sfnt_table): Add it. * docs/CHANGES: Updated. * include/freetype/freetype.h (FREETYPE_PATCH): Set to 10. * builds/unix/configure.ac (version_info): Set to 9:8:3. * builds/unix/configure: Updated. * builds/win32/visualc/index.html, builds/win32/visualc/freetype.dsp, builds/win32/visualc/freetype.vcproj: s/219/2110/, s/2.1.9/2.1.10/. * builds/freetype.mk (refdoc), README, Jamfile (RefDoc): s/2.1.8/2.1.9/. * docs/CHANGES, docs/VERSION.DLL: Updated. * src/base/ftrfork.c (FT_Raccess_Guess) [!FT_CONFIG_OPTION_GUESSING_EMBEDDED_FORK]: Remove compiler warnings.
112 lines
3.6 KiB
Plaintext
112 lines
3.6 KiB
Plaintext
Due to our use of "libtool" to generate and install the FreeType 2
|
|
libraries on Unix systems, as well as other historical events, it is
|
|
generally very difficult to know precisely which release of the font
|
|
engine is installed on a given system.
|
|
|
|
This file tries to explain why and to document ways to properly detect
|
|
FreeType on Unix.
|
|
|
|
|
|
1. Version & Release numbers
|
|
----------------------------
|
|
|
|
For each new public release of FreeType 2, there are generally *three*
|
|
distinct "version" numbers to consider:
|
|
|
|
* The official FT2 release number, like 2.0.9, or 2.1.3.
|
|
|
|
* The libtool (and Unix) specific version number, like "9.2.3". This
|
|
is what "freetype-config --version" will return.
|
|
|
|
* The platform-specific shared object number, used for example when
|
|
the library is installed as "/usr/lib/libfreetype.so.6.3.2".
|
|
|
|
The platform-specific number is, unsurprisingly, platform-specific and
|
|
varies with the operating system you are using (several variants of
|
|
Linux, FreeBSD, Solaris, etc.). You should thus _never_ use it, even
|
|
for simple tests.
|
|
|
|
The libtool-specific number does not equal the release number but is
|
|
tied to it.
|
|
|
|
The release number is available at *compile* time through the following
|
|
macros defined in FT_FREETYPE_H:
|
|
|
|
- FREETYPE_MAJOR : major release number
|
|
- FREETYPE_MINOR : minor release number
|
|
- FREETYPE_PATCH : patch release number
|
|
|
|
See below for a small autoconf fragment.
|
|
|
|
The release number is also available at *runtime* through the
|
|
"FT_Library_Version" API. Unfortunately, this one wasn't available or
|
|
working correctly before the 2.1.3 official release.
|
|
|
|
|
|
2. History
|
|
----------
|
|
|
|
The following table gives, for each official release, the corresponding
|
|
libtool number, as well as the shared object number found on _most_
|
|
systems, but not all of them:
|
|
|
|
release libtool so
|
|
-------------------------------
|
|
2.1.10 9.8.3 6.3.8
|
|
2.1.9 9.7.3 6.3.7
|
|
2.1.8 9.6.3 6.3.6
|
|
2.1.7 9.5.3 6.3.5
|
|
2.1.6 9.5.3 6.3.5
|
|
2.1.5 9.4.3 6.3.4
|
|
2.1.4 9.3.3 6.3.3
|
|
2.1.3 9.2.3 6.3.2
|
|
2.1.2 9.1.3 6.3.1
|
|
2.1.1 9.0.3 ?
|
|
2.1.0 8.0.2 ?
|
|
2.0.9 9.0.3 ?
|
|
2.0.8 8.0.2 ?
|
|
2.0.4 7.0.1 ?
|
|
2.0.1 6.1.0 ?
|
|
|
|
The libtool numbers are a bit inconsistent due to the library's history:
|
|
|
|
- 2.1.0 was created as a development branch from 2.0.8 (hence the same
|
|
libtool numbers).
|
|
|
|
- 2.0.9 was a bug-fix release of the "stable" branch, and we
|
|
incorrectly increased its libtool number.
|
|
|
|
- 2.1.4 is still in the "development" branch, however it is stable
|
|
enough to be the basis of an upcoming 2.2.0 release.
|
|
|
|
|
|
3. Autoconf Code Fragment
|
|
-------------------------
|
|
|
|
Lars Clausen contributed the following autoconf fragment to detect which
|
|
version of FreeType is installed on a system. This one tests for a
|
|
version that is at least 2.0.9; you should change it to check against
|
|
other release numbers.
|
|
|
|
|
|
AC_MSG_CHECKING([whether FreeType version is 2.0.9 or higher])
|
|
old_CPPFLAGS="$CPPFLAGS"
|
|
CPPFLAGS=`freetype-config --cflags`
|
|
AC_TRY_CPP([
|
|
|
|
#include <ft2build.h>
|
|
#include FT_FREETYPE_H
|
|
#if (FREETYPE_MAJOR*1000 + FREETYPE_MINOR)*1000 + FREETYPE_PATCH < 2000009
|
|
#error Freetype version too low.
|
|
#endif
|
|
],
|
|
[AC_MSG_RESULT(yes)
|
|
FREETYPE_LIBS=`freetype-config --libs`
|
|
AC_SUBST(FREETYPE_LIBS)
|
|
AC_DEFINE(HAVE_FREETYPE,1,[Define if you have the FreeType2 library])
|
|
CPPFLAGS="$old_CPPFLAGS"],
|
|
[AC_MSG_ERROR([Need FreeType library version 2.0.9 or higher])])
|
|
|
|
|
|
--- end of VERSION.DLL ---
|