Gentoo に Scala をインストールする
注: インストール前に必ず Java をインストールしておくこと
Java をインストールしておかないと、Scala 起動時に下記のようなエラーが発生する。
# which scala /usr/bin/scala # scala -version Traceback (most recent call last): File "/usr/bin/gjl", line 300, in <module> vm = get_vm(pkg) File "/usr/bin/gjl", line 205, in get_vm if verman.version_satisfies( needed, manager.get_active_vm()): File "//usr/lib/python2.5/site-packages/java_config_2/EnvironmentManager.py", line 127, in get_active_vm self.load_active_vm() File "//usr/lib/python2.5/site-packages/java_config_2/EnvironmentManager.py", line 120, in load_active_vm raise InvalidVMError("Unable to determine valid vm. Please see http://www.gentoo.org/doc/en/java.xml#doc_chap4") java_config_2.Errors.InvalidVMError: Unable to determine valid vm. Please see http://www.gentoo.org/doc/en/java.xml#doc_chap4 Couldn't get needed information
この時、Scala の依存パッケージとしてインストールされる Java を動作させてみると、
# java -version basename: missing operand Try `basename --help' for more information. * Home for VM '' does not exist: * Invalid System VM:
というエラーが発生する。
このようなエラーが発生した Scala をアンインストールするには、
# emerge --unmerge scala
とする。
Scala が Portarge に登録されている状況を確認する
# emerge -pv dev-lang/scala These are the packages that would be merged, in order: Calculating dependencies... done! !!! All ebuilds that could satisfy "dev-lang/scala" have been masked. !!! One of the following masked packages is required to complete your request: - dev-lang/scala-2.7.5 (masked by: ~x86 keyword) - dev-lang/scala-2.7.4-r1 (masked by: ~x86 keyword) - dev-lang/scala-2.7.4 (masked by: ~x86 keyword) - dev-lang/scala-2.7.3-r1 (masked by: ~x86 keyword) - dev-lang/scala-2.7.3 (masked by: ~x86 keyword) - dev-lang/scala-2.7.2 (masked by: ~x86 keyword) For more information, see the MASKED PACKAGES section in the emerge man page or refer to the Gentoo Handbook.
Scala は masked の状態であり、複数のバージョンの Scala がインストールできる状態になっている。また、最新版の Scala をインストールできる状態にあることがわかる。
Scala の ebuild を確認する
# ls -l /usr/portage/dev-lang/scala/ total 40 -rw-r--r-- 1 root root 3234 Jun 5 18:05 ChangeLog -rw-r--r-- 1 root root 3866 Jun 5 18:05 Manifest drwxr-xr-x 2 portage portage 4096 Feb 11 2009 files -rw-r--r-- 1 portage portage 317 Aug 23 2008 metadata.xml -rw-r--r-- 1 root root 3279 Apr 5 17:08 scala-2.7.2.ebuild -rw-r--r-- 1 portage portage 3263 Feb 15 2009 scala-2.7.3-r1.ebuild -rw-r--r-- 1 root root 3386 Apr 5 17:08 scala-2.7.3.ebuild -rw-r--r-- 1 root root 3180 May 1 16:44 scala-2.7.4-r1.ebuild -rw-r--r-- 1 root root 3296 May 1 04:29 scala-2.7.4.ebuild -rw-r--r-- 1 root root 3160 Jun 5 17:45 scala-2.7.5.ebuild
masked の対象外にして、インストールする Scala のバージョンを明示的に指定する
/etc/portage/package.unmask にインストールする Scala のバージョンを記述する。
# vi /etc/portage/package.unmask >=dev-lang/scala-2.7.5
Scala をインストールする
まずはパッケージの依存状況も含めて、インストールの設定内容を確認する。
# ACCEPT_KEYWORDS="~x86" emerge dev-lang/scala -vp These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild N ] app-portage/portage-utils-0.2 86 kB [ebuild N ] media-libs/giflib-4.1.6-r1 USE="-X -rle" 495 kB [ebuild N ] media-libs/jpeg-7 950 kB [ebuild N ] dev-python/pyxml-0.8.4-r2 USE="-doc -examples" 718 kB [ebuild N ] dev-java/javatoolkit-0.3.0-r3 17 kB [ebuild N ] app-arch/unzip-6.0-r1 USE="bzip2 unicode" 1,345 kB [ebuild N ] dev-java/java-config-wrapper-0.16 8 kB [ebuild N ] media-libs/libpng-1.2.38 514 kB [ebuild N ] dev-java/java-config-2.1.8-r1 56 kB [ebuild N ] dev-java/icedtea6-bin-1.4.1 USE="-X -alsa -doc -examples -nsplugin -source" 34,990 kB [ebuild N ] virtual/jdk-1.6.0 0 kB [ebuild N ] dev-java/ant-core-1.7.1-r4 USE="-doc -source" 6,828 kB [ebuild N ] virtual/jre-1.6.0 0 kB [ebuild N ] dev-java/jakarta-oro-2.0.8-r2 USE="-doc -examples -source" 338 kB [ebuild N ] dev-java/commons-logging-1.1.1 USE="-avalon-framework -avalon-logkit -doc -log4j -servletapi -source -test" 187 kB [ebuild N ] dev-java/xml-commons-external-1.3.04 USE="-doc -source" 645 kB [ebuild N ] dev-java/ant-nodeps-1.7.1 0 kB [ebuild N ] dev-java/jline-0.9.94 USE="-doc -source -test" 754 kB [ebuild N ] dev-java/bcel-5.2 USE="-doc -source" 256 kB [ebuild N ] dev-java/commons-cli-1.2 USE="-doc -source -test" 67 kB [ebuild N ] dev-java/commons-collections-3.2.1 USE="-doc -source -test -test-framework" 596 kB [ebuild N ] dev-java/jzlib-1.0.7-r1 USE="-doc -source" 50 kB [ebuild N ] dev-java/commons-codec-1.3-r2 USE="-doc -source -test" 87 kB [ebuild N ] dev-java/xml-commons-resolver-1.2 USE="-doc -source" 257 kB [ebuild N ] dev-java/xjavac-20041208-r5 2 kB [ebuild N ] dev-java/commons-httpclient-3.1 USE="-doc -examples -source -test" 1,839 kB [ebuild N ] dev-java/jsch-0.1.41 USE="zlib -doc -examples -source" 276 kB [ebuild N ] dev-java/commons-net-1.4.1-r1 USE="-doc -examples -source" 224 kB [ebuild N ] dev-java/xalan-serializer-2.7.1 USE="-doc -source" 6,138 kB [ebuild N ] dev-java/commons-vfs-1.0 USE="-doc -source" 273 kB [ebuild N ] dev-java/xerces-2.9.1 USE="-doc -examples -source" 1,672 kB [ebuild N ] dev-java/ant-ivy-2.0.0 USE="-doc -examples -source -test" 2,196 kB [ebuild N ] dev-java/ant-ivy-1.4.1 USE="-doc -examples -source -test" 735 kB [ebuild N ] dev-java/ant-contrib-1.0_beta3 USE="-doc -source" 3,221 kB [ebuild N ] dev-lang/scala-2.7.5 USE="-binary -doc -emacs -examples -source" 28,767 kB Total: 35 packages (35 new), Size of downloads: 94,570 kB
インストールを実行する。
# ACCEPT_KEYWORDS="~x86" emerge dev-lang/scala
長い時間をかけた後に、コンパイル終了後にエラーが発生…。
>>> '/var/tmp/portage/dev-lang/scala-2.7.5/temp/build.log' * Messages for package dev-lang/scala-2.7.5: * This package can fail to build with memory allocation errors in some cases. * If you are unable to build from sources, please try USE=binary * for this package. See bug #181390 for more information. * Don't have at least 512MBytes RAM * Bad things may happen! You may abort the build by pressing ctrl+c in * the next 15 seconds. * * * ERROR: dev-lang/scala-2.7.5 failed. * Call stack: * ebuild.sh, line 49: Called src_compile * environment, line 4272: Called eant 'all.clean' 'dist.done' * environment, line 982: Called die * The specific snippet of code: * ant ${antflags} "${@}" || die "eant failed" * The die message: * eant failed * * If you need support, post the topmost build error, and the call stack if relevant. * A complete build log is located at '/var/tmp/portage/dev-lang/scala-2.7.5/temp/build.log'. * The ebuild environment file is located at '/var/tmp/portage/dev-lang/scala-2.7.5/temp/environment'. * * IMPORTANT: 1 news items need reading for repository 'gentoo'. * Use eselect news to read news items.
エラーログを見ると、メモリーが足りないために、発生したようだ。解決策として、コンパイル済みのバイナリをインストールしろとのこと。
* This package can fail to build with memory allocation errors in some cases. * If you are unable to build from sources, please try USE=binary * for this package. See bug #181390 for more information. * Don't have at least 512MBytes RAM
ということで、
# ACCEPT_KEYWORDS="~x86" USE="binary" emerge dev-lang/scala # scala -version Welcome to Scala version 2.7.5.r0-b20090605191508 (Java HotSpot(TM) Client VM, Java 1.6.0_15). Type in expressions to have them evaluated. Type :help for more information.
でインストールは完了。
