| |
| FreeType 2 compilation how-to |
| ============================= |
| |
| |
| Introduction |
| ------------ |
| |
| Welcome to the FreeType 2 library. You'll find in this document |
| instructions on how to compile the library on your favorite platform. |
| |
| |
| I. QUICK COMMAND-LINE GUIDE |
| --------------------------- |
| |
| Install GNU Make (version 3.78 or newer), then try the following on |
| Unix or any system with gcc: |
| |
| make // this will setup the build |
| make // this will build the library |
| |
| On Win32 + Visual C++: |
| |
| make setup visualc // setup the build for VisualC++ on Win32 |
| make // build the library |
| |
| Then, go to the `demos' directory and type |
| |
| make |
| |
| |
| Note that on Unix, the first `make' invocation will run a configure |
| script (which is located in `freetype2/builds/unix/'. You can also |
| pass parameters to this script with the CFG variable, as in: |
| |
| make CFG="--prefix=/usr/local" |
| make |
| |
| |
| If this doesn't work, read the following. |
| |
| |
| II. COMMAND-LINE COMPILATION |
| ---------------------------- |
| |
| Note that if you do not want to compile FreeType 2 from a command |
| line shell, please skip to section III below (DETAILED COMPILATION). |
| |
| FreeType 2 includes a powerful and flexible build system that allows |
| you to easily compile it on a great variety of platforms from the |
| command line. To do so, just follow these simple instructions: |
| |
| a. Install GNU Make |
| |
| Because GNU Make is the only Make tool supported to compile |
| FreeType 2, you should install it on your machine. |
| |
| The FreeType 2 build system relies on many features special to GNU |
| Make -- trying to build the library with any other Make tool will |
| *fail*. |
| |
| Make sure that you are invoking GNU Make from the command line, by |
| typing something like: |
| |
| make -v |
| |
| to display its version number. |
| |
| Version 3.78 or newer is needed. |
| |
| b. Invoke `make' |
| |
| Go to the root directory of FreeType 2, then simply invoke GNU |
| Make from the command line. This will launch the FreeType 2 host |
| platform detection routines. A summary will be displayed, for |
| example, on Win32: |
| |
| |
| ============================================================== |
| FreeType build system -- automatic system detection |
| |
| The following settings are used: |
| |
| platform win32 |
| compiler gcc |
| configuration directory ./builds/win32 |
| configuration rules ./builds/win32/w32-gcc.mk |
| |
| If this does not correspond to your system or settings please |
| remove the file 'config.mk' from this directory then read the |
| INSTALL file for help. |
| |
| Otherwise, simply type 'make' again to build the library. |
| ============================================================= |
| |
| |
| If the detected settings correspond to your platform and compiler, |
| skip to step e. Note that if your platform is completely alien to |
| the build system, the detected platform will be `ansi'. |
| |
| c. Configure the build system for a different compiler |
| |
| If the build system correctly detected your platform, but you want |
| to use a different compiler than the one specified in the summary |
| (for most platforms, gcc is the defaut compiler), invoke GNU Make |
| with |
| |
| make setup <compiler> |
| |
| For example: |
| |
| to use Visual C++ on Win32, type: "make setup visualc" |
| to use LCC-Win32 on Win32, type: "make setup lcc" |
| |
| The <compiler> name to use is platform-dependent. The list of |
| available compilers for your system is available in the file |
| `builds/<system>/detect.mk' (note that we hope to make the list |
| displayed at user demand in the final release). |
| |
| If you are satisfied by the new configuration summary, skip to |
| step e. |
| |
| d. Configure the build system for an unknown platform/compiler |
| |
| The auto-detection/setup phase of the build system copies a file |
| to the current directory under the name `config.mk'. |
| |
| For example, on OS/2+gcc, it would simply copy |
| `builds/os2/os2-gcc.mk' to `./config.mk'. |
| |
| If for some reason your platform isn't correctly detected, copy |
| manually the configuration sub-makefile to `./config.mk' and go to |
| step e. |
| |
| Note that this file is a sub-Makefile used to specify Make |
| variables for compiler and linker invocation during the build. |
| You can easily create your own version from one of the existing |
| configuration files, then copy it to the current directory under |
| the name `./config.mk'. |
| |
| e. Build the library |
| |
| The auto-detection/setup phase should have copied a file in the |
| current directory, called `./config.mk'. This file contains |
| definitions of various Make variables used to invoke the compiler |
| and linker during the build. |
| |
| To launch the build, simply invoke GNU Make again: The top |
| Makefile will detect the configuration file and run the build with |
| it. |
| |
| f. Build the demonstration programs |
| |
| |
| III. DETAILED COMPILATION PROCEDURE |
| ----------------------------------- |
| |
| If you don't want to compile FreeType 2 from the command-line (for |
| example if you use a graphical IDE on a Mac or Windows), you will |
| need to understand how the FreeType files are organized. |
| |
| FreeType 2 has a very modular design, and it is made of several |
| components. Each component must be compiled as a stand-alone object |
| file, even if it is really made of several C source files. For |
| example, the `base layer' component is made of the following C |
| files: |
| |
| src/ |
| base/ |
| ftcalc.c - computations |
| ftextend.c - extensions support |
| ftlist.c - simple list management |
| ftobjs.c - object management |
| ftoutln.c - simple outline processing |
| ftstream.c - stream input |
| |
| However, you can create a single object file by compiling the file |
| `src/base/ftbase.c', which basically contains |
| |
| #include <base/ftcalc.c> |
| #include <base/ftobjs.c> |
| #include <base/ftstream.c> |
| #include <base/ftlist.c> |
| #include <base/ftoutln.c> |
| #include <base/ftextend.c> |
| |
| Similarly, each component has a single `englobing' C file to compile |
| it as a stand-alone object: |
| |
| src/autohint/autohint.c - the autohinting module |
| src/base/ftbase.c - the base layer, high-level interface |
| src/cache/ftcache.c - a glyph and image caching system |
| (still experimental) |
| src/cff/cff.c - the OpenType font driver |
| src/cid/type1cid.c - the CID-keyed font driver |
| src/psaux/psaux.c - the PS support module |
| src/psnames/psnames.c - a support module to handle PS glyph |
| names |
| src/raster1/raster1.c - the monochrome raster module |
| src/sfnt/sfnt.c - the `sfnt' module |
| src/smooth/smooth.c - the anti-aliasing raster module |
| src/truetype/truetype.c - the TrueType font driver |
| src/type1/type1.c - the Type 1 font driver |
| |
| The last module of FreeType 2, winfonts (implementing support for |
| Windows FNT format), is a single file. |
| |
| To compile one component, do the following: |
| |
| - Add the top-level `include' directory to your compilation |
| include path |
| |
| - Add the `src' directory to your compilation include path. |
| |
| - Compile the component `source' file (see list below); you don't |
| need to be in the component's directory. |
| |
| For example, the following line can be used to compile the truetype |
| driver on Unix: |
| |
| cd freetype2/ |
| cc -c -Iinclude -Isrc src/truetype/truetype.c |
| |
| Alternatively: |
| |
| cd freetype2/src/truetype |
| cc -c -I../../include -I.. truetype.c |
| |
| Finally, FreeType 2 contains some other components: |
| |
| src/base/ftsystem.c - system-specific memory and i/o support |
| src/base/ftinit.c - initialization layer |
| src/base/ftdebug.c - debugging component (empty in release |
| build) |
| src/base/ftglyph.c - optional convenience functions |
| |
| All font drivers are optional. The `sfnt', `psaux', and `psnames' |
| modules are mandatory for certain drivers. However, you may need to |
| update the list of drivers that are statically linked to the |
| library, which is located in the configuration file |
| `include/freetype/config/ftmodule.h'. |
| |
| |
| IV. Support for flat-directory compilation |
| ------------------------------------------ |
| |
| It is now possible to put all FreeType 2 source files into a single |
| directory, with the exception of the `include' hierarchy. |
| |
| Note that you still need to only compile the `wrapper' sources |
| described above. Define the `FT_FLAT_COMPILE' macro when |
| compiling. Here an example: |
| |
| 1. Copy all files in current directory: |
| |
| cp freetype2/src/base/*.[hc] . |
| cp freetype2/src/raster1/*.[hc] . |
| cp freetype2/src/smooth/*.[hc] . |
| etc. |
| |
| 2. Compile sources: |
| |
| cc -c -DFT_FLAT_COMPILE -Ifreetype2/include ftsystem.c |
| cc -c -DFT_FLAT_COMPILE -Ifreetype2/include ftinit.c |
| cc -c -DFT_FLAT_COMPILE -Ifreetype2/include ftdebug.c |
| cc -c -DFT_FLAT_COMPILE -Ifreetype2/include ftbase.c |
| etc. |
| |
| |
| End of file |