Ghostscript の概要
Ghostscript は、PostScrit
データに対する万能なプロセッサーであり、PostScript をさまざまに異なる書式に変換する機能を提供します。 これは cups
の印刷機能の一部として必須のものです。
![[注記]](../images/note.png)
注記
LFS や依存パッケージが本ブックに示す最新安定バージョンでなかった場合には、BLFS
開発版においては、パッケージのビルドや処理実行が適切に行われないことがあります。
パッケージ情報
追加のダウンロード
If you wish, you can download additional fonts.
Ghostscript の依存パッケージ
推奨
Cups-2.4.7
(required for building the 「cups」 device backend, which is needed by
cups-filters), Fontconfig-2.14.2 (required, if you are
installing any suggested font), FreeType-2.13.2, Little
CMS-2.14, libjpeg-turbo-3.0.1, libpng-1.6.40, libtiff-4.6.0,
OpenJPEG-2.5.0
任意
Cairo-1.18.0, GTK+-3.24.38, libidn-1.41, libpaper-2.1.2, libwebp-1.3.2,
グラフィック環境
Ghostscript のインストール
注記
The Ghostscript build system is
not user-friendly. In order to use system copies of various
graphics libraries, you must do it using unconventional methods.
Ghostscript includes (old) copies
of several libraries. Some of these seem to have been patched to
fix known vulnerabilities, but others of these copies are less-well
maintained. To ensure that any future fixes are applied throughout
the whole system, it is recommended that you first install the
released versions of these libraries and then configure
Ghostscript to link to them.
If you have installed the recommended dependencies on your system,
remove the copies of freetype,
lcms2, libjpeg, libpng, and openjpeg:
rm -rf freetype lcms2mt jpeg libpng openjpeg
Compile Ghostscript:
rm -rf zlib &&
./configure --prefix=/usr \
--disable-compile-inits \
--with-system-libtiff &&
make
To compile the shared library libgs.so, run the following additional command as
an unprivileged user:
make so
This package does not come with a test suite. A set of example
files may be used for testing, but it is only possible after
installation of the package.
root ユーザーになって以下を実行します。
make install
If you want the shared library too:
make soinstall &&
install -v -m644 base/*.h /usr/include/ghostscript &&
ln -sfvn ghostscript /usr/include/ps
Now make the documentation accessible from a standard place:
mv -v /usr/share/doc/ghostscript/10.02.1 /usr/share/doc/ghostscript-10.02.1 &&
rm -rfv /usr/share/doc/ghostscript &&
cp -r examples/ /usr/share/ghostscript/10.02.1/
If you have downloaded the fonts, unpack them to /usr/share/ghostscript and ensure the ownership
of the files are root: root.
tar -xvf ../ghostscript-fonts-std-8.11.tar.gz -C /usr/share/ghostscript --no-same-owner &&
tar -xvf ../gnu-gs-fonts-other-6.0.tar.gz -C /usr/share/ghostscript --no-same-owner &&
fc-cache -v /usr/share/ghostscript/fonts/
You can now test the rendering of various postscript and pdf files
from the /usr/share/ghostscript/10.02.1/examples . To do
this, run the following command (in a X Windows display):
gs -q -dBATCH /usr/share/ghostscript/10.02.1/examples/tiger.eps
コマンド説明
rm -rf zlib :
zlib was installed as part of LFS.
--disable-compile-inits:
This option makes gs
and libgs.so slightly smaller.
--with-system-libtiff:
Remove this option if you've not installed libtiff-4.6.0.
install -v -m644
base/*.h... : Some packages (ImageMagick is one) need the Ghostscript interface headers in place to link
to the shared library. These commands install the headers.
ln -sfvn ghostscript
/usr/include/ps: Some packages expect to find the
interface headers in an alternate location.
mv -v
/usr/share/doc/ghostscript/10.02.1
/usr/share/doc/ghostscript-10.02.1: This moves the
documentation where it is expected to be found.
--disable-cups: this option will save a
tiny amount of space by not linking gs and libgs.so to the Cups-2.4.7 libraries if you have installed
those.
パッケージ構成
インストールプログラム: dvipdf, eps2eps, gs, gsbj, gsc (from soinstall),
gsdj, gsdj500, gslj, gslp, gsnd, gsx (from soinstall),
lprsetup.sh, pdf2dsc, pdf2ps, pf2afm, pfbtopfa, pphs, printafm,
ps2ascii, ps2epsi, ps2pdf, ps2pdf12, ps2pdf13, ps2pdf14,
ps2pdfwr, ps2ps, ps2ps2, unix-lpr.sh
インストールライブラリ: libgs.so
インストールディレクトリ: /usr/include/ghostscript, /usr/share/ghostscript,
/usr/share/doc/ghostscript-10.02.1
概略説明
|
gs
|
is an interpreter for Adobe Systems' PostScript(tm) and
Portable Document Format (PDF)
|
|
libgs.so
|
provides Ghostscript
functionality to other programs, such as GSView, ImageMagick, and libspectre
|
Ghostscript provides many
different scripts used to convert PostScript, PDF, and other
formats. Please refer to the HTML documentation or the man pages
for information about the capabilities provided.