182 lines
6.4 KiB
Gnuplot
182 lines
6.4 KiB
Gnuplot
This document contains instructions how to build the FreeType library
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on non-Unix systems with the help of GNU Make. Note that if you are
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running Cygwin or MinGW/MSYS in Windows, you should follow the
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instructions in the file `INSTALL.UNIX' instead.
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FreeType 2 includes a powerful and flexible build system that allows
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you to easily compile it on a great variety of platforms from the
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command line. To do so, just follow these simple instructions.
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1. Install GNU Make
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-------------------
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The FreeType 2 build system relies on many features special to GNU
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Make.
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NEARLY ALL OTHER MAKE TOOLS FAIL, INCLUDING `BSD MAKE', SO REALLY
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INSTALL A RECENT VERSION OF GNU MAKE ON YOUR SYSTEM!
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Note that make++, a make tool written in Perl, supports enough
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features of GNU make to compile FreeType. See
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https://makepp.sourceforge.net
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for more information; you need version 2.0 or newer, and you must
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pass option `--norc-substitution'.
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Make sure that you are invoking GNU Make from the command line, by
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typing something like:
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make -v
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to display its version number.
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VERSION 3.81 OR NEWER IS NEEDED!
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2. Invoke `make'
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----------------
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Go to the root directory of FreeType 2, then simply invoke GNU
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Make from the command line. This will launch the FreeType 2 host
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platform detection routines. A summary will be displayed, for
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example, on Win32.
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==============================================================
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FreeType build system -- automatic system detection
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The following settings are used:
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platform windows
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compiler gcc
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configuration directory .\builds\windows
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configuration rules .\builds\windows\w32-gcc.mk
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If this does not correspond to your system or settings please
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remove the file 'config.mk' from this directory then read the
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INSTALL file for help.
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Otherwise, simply type 'make' again to build the library
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or 'make refdoc' to build the API reference (the latter needs
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Python >= 3.5).
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=============================================================
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If the detected settings correspond to your platform and compiler,
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skip to step 5. Note that if your platform is completely alien to
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the build system, the detected platform will be `ansi'.
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3. Configure the build system for a different compiler
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------------------------------------------------------
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If the build system correctly detected your platform, but you want
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to use a different compiler than the one specified in the summary
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(for most platforms, gcc is the default compiler), invoke GNU Make
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with
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make setup <compiler>
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Examples:
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to use Visual C++ on Win32, type: `make setup visualc'
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to use Borland C++ on Win32, type `make setup bcc32'
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to use Watcom C++ on Win32, type `make setup watcom'
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to use Intel C++ on Win32, type `make setup intelc'
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to use LCC-Win32 on Win32, type: `make setup lcc'
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to use Watcom C++ on OS/2, type `make setup watcom'
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to use VisualAge C++ on OS/2, type `make setup visualage'
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The <compiler> name to use is platform-dependent. The list of
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available compilers for your system is available in the file
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`builds/<system>/detect.mk'.
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If you are satisfied by the new configuration summary, skip to
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step 5.
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3a. Use clang instead of gcc
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----------------------------
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The `clang' compiler can use FreeType's setup for `gcc'; it is
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sufficient to set the `CC' variable, for example
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make CC=clang
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3b. Compiling with a C++ compiler
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---------------------------------
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FreeType can be built with a C++ compiler, for example
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make CC="g++"
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If `clang++' should be used it is necessary to also override the
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`ANSIFLAGS' variable:
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make CC="clang++" ANSIFLAGS=""
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4. Configure the build system for an unknown platform/compiler
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--------------------------------------------------------------
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The auto-detection/setup phase of the build system copies a file
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to the current directory under the name `config.mk'.
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For example, on OS/2+gcc, it would simply copy
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`builds/os2/os2-gcc.mk' to `./config.mk'.
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If for some reason your platform isn't correctly detected, copy
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manually the configuration sub-makefile to `./config.mk' and go to
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step 5.
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Note that this file is a sub-Makefile used to specify Make
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variables for compiler and linker invocation during the build.
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You can easily create your own version from one of the existing
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configuration files, then copy it to the current directory under
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the name `./config.mk'.
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5. Build the library
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--------------------
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The auto-detection/setup phase should have copied a file in the
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current directory, called `./config.mk'. This file contains
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definitions of various Make variables used to invoke the compiler
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and linker during the build. [It has also generated a file called
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`ftmodule.h' in the objects directory (which is normally
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`<toplevel>/objs/'); please read the file `docs/CUSTOMIZE' for
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customization of FreeType.]
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To launch the build, simply invoke GNU Make again: The top
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Makefile will detect the configuration file and run the build with
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it. If you have used variables in step 3, you must use the same
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variables here, too.
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Final note
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The above instructions build a _statically_ linked library of the
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font engine in the `objs' directory. On Windows, you can build a
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DLL either with MinGW (within an MSYS shell, following the
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instructions in `INSTALL.UNIX'), or you use one of the Visual C++
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project files; see the subdirectories of `builds/windows'. For
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everything else, you are on your own, and you might follow the
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instructions in `INSTALL.ANY' to create your own Makefiles.
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----------------------------------------------------------------------
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Copyright (C) 2003-2023 by
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David Turner, Robert Wilhelm, and Werner Lemberg.
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This file is part of the FreeType project, and may only be used,
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modified, and distributed under the terms of the FreeType project
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license, LICENSE.TXT. By continuing to use, modify, or distribute
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this file you indicate that you have read the license and understand
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and accept it fully.
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--- end of INSTALL.GNU ---
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