source: general/prog/gcc/gcc-exp.xml@ 58bd309a

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Last change on this file since 58bd309a was 58bd309a, checked in by Larry Lawrence <larry@…>, 19 years ago

update gcc intros

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@1199 af4574ff-66df-0310-9fd7-8a98e5e911e0

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1<sect2>
2<title>Command explanations</title>
3
4<para><command>PATH_HOLD=$PATH</command> : This command
5stores your current path before it's modified so that it can be restored after
6installation.</para>
7
8<para><command>export PATH=/opt/gnat/bin:$PATH</command> : This
9command allows the build to find
10<application><acronym>GNAT</acronym></application>'s
11<application>Ada</application> compiler to build
12<application>Ada</application>.</para>
13
14<para><command>touch treeprs.ads [es]info.h nmake.ad[bs]</command> :
15This command creates necessary files for the
16<application>Ada</application> build. This step
17may be skipped if you don't want to compile the
18<application>Ada</application> frontend.</para>
19
20<para><command>CC=/usr/bin/gcc</command> : This command works around the
21new <envar>PATH</envar> which puts <application><acronym>GNAT</acronym>
22</application>'s <command>gcc</command> as the primary compiler.</para>
23
24<para><command>--enable-languages=c,c++,objc,f77,ada,java</command>
25: This command builds all available languages in the
26<application><acronym>GCC</acronym></application> package.
27You may modify this command to remove unwanted languages.</para>
28
29<para><command>--enable-shared --enable-threads=posix
30--enable-__cxa_atexit</command> : These commands are required to build
31the <application>C++</application> libraries to published standards.</para>
32
33<para><command>--enable-clocale=gnu</command> : This command is a
34failsafe for incomplete locale data.</para>
35
36<para><command>make gnatlib_and tools</command> : This command
37completes the <application>Ada</application> build process. Skip this step if
38you have not enabled <application>Ada</application> as one of the languages.
39</para>
40
41</sect2>
42
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