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John's suggestions.

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K. Richard Pixley
1991-05-04 00:57:57 +00:00
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README.configure
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@ -2,7 +2,7 @@
On Configuring Development Tools On Configuring Development Tools
Last Mod Mon Apr 15 10:25:59 PDT 1991, by rich@sendai Last Mod Fri May 3 13:02:35 PDT 1991, by rich@sendai
INTRO INTRO
@ -61,7 +61,7 @@ Host Environments:
calculator to compile on a SparcStation, we might configure for calculator to compile on a SparcStation, we might configure for
host sun4. With our configuration system: host sun4. With our configuration system:
cd desk-calculator ; configure sun4 cd desk-calculator ; ./configure sun4
does the trick. "configure" is a shell script that sets up does the trick. "configure" is a shell script that sets up
Makefiles, subdirectories, and symbolic links appropriate for Makefiles, subdirectories, and symbolic links appropriate for
@ -73,7 +73,7 @@ Host Environments:
compiler on the sun4 to build a program intended to be run on a compiler on the sun4 to build a program intended to be run on a
sun3, we would configure the source for sun3. sun3, we would configure the source for sun3.
cd desk-calculator ; configure sun3 cd desk-calculator ; ./configure sun3
The fact that we are actually building the program on a sun4 makes The fact that we are actually building the program on a sun4 makes
no difference if the sun3 cross compiler presents an environment no difference if the sun3 cross compiler presents an environment
@ -101,18 +101,18 @@ Configuration Time Options:
notation or postfix as a configuration option. For a sun3, chosing notation or postfix as a configuration option. For a sun3, chosing
infix might be: infix might be:
configure sun3 +notation=infix ./configure sun3 +notation=infix
while a sun4 with postfix might be: while a sun4 with postfix might be:
configure sun4 +notation=postfix ./configure sun4 +notation=postfix
If we wanted to build both at the same time, in the same directory If we wanted to build both at the same time, in the same directory
structure, the intermediate pieces used in the build process must structure, the intermediate pieces used in the build process must
be kept separate. be kept separate.
configure sun4 +forcesubdirs +notation=postfix ./configure sun4 +forcesubdirs +notation=postfix
configure sun3 +forcesubdirs +notation=infix ./configure sun3 +forcesubdirs +notation=infix
will create subdirectories for the intermediate pieces of the sun4 will create subdirectories for the intermediate pieces of the sun4
and sun3 configurations. This is necessary as previous systems and sun3 configurations. This is necessary as previous systems
@ -139,7 +139,7 @@ Configuration Time Options:
You can elect to change $(destdir) only as a configuration time You can elect to change $(destdir) only as a configuration time
option. option.
configure sun4 +notation=postfix +destdir=/local ./configure sun4 +notation=postfix +destdir=/local
Will configure the source such that: Will configure the source such that:
@ -164,8 +164,8 @@ SPECIFICS
The GNU Development Tools can be built on a wide variety of hosts. The GNU Development Tools can be built on a wide variety of hosts.
So, of course, they must be configured. Like the last example, So, of course, they must be configured. Like the last example,
configure sun4 +destdir=/local ./configure sun4 +destdir=/local
configure sun3 +destdir=/local ./configure sun3 +destdir=/local
will configure the source to be built in subdirectories, in order will configure the source to be built in subdirectories, in order
to keep the intermediate pieces separate, and to be installed in to keep the intermediate pieces separate, and to be installed in
@ -211,14 +211,14 @@ BUILDING DEVELOPMENT ENVIRONMENTS
The development environment produced, is a configuration time The development environment produced, is a configuration time
option, just like $(destdir). option, just like $(destdir).
configure sun4 +destdir=/local +target=sun3 ./configure sun4 +destdir=/local +target=sun3
configure sun3 +destdir=/local +target=sun4 ./configure sun3 +destdir=/local +target=sun4
In this example, like before, we create two configurations. The In this example, like before, we create two configurations. The
first is intended to be built in a sun4 environment, in first is intended to be built in a sun4 environment, in
subdirectories, to be installed in /local. The second is also subdirectories, to be installed in /local. The second is intended
intended to be build in a sun4 environment, in subdirectories, to to be build in a sun3 environment, in subdirectories, to be
be installed in /local. installed in /local.
Unlike the previous example, the first configuration will produce Unlike the previous example, the first configuration will produce
a sun3 development environment, perhaps even suitable for building a sun3 development environment, perhaps even suitable for building
@ -256,7 +256,7 @@ Native Development Environments:
machine. The process of using a native development environment to machine. The process of using a native development environment to
build native programs is called a "native" build. build native programs is called a "native" build.
configure sun4 ./configure sun4
Will configure this source such that when built in a sun4 Will configure this source such that when built in a sun4
development environment, with a development environment that development environment, with a development environment that
@ -363,7 +363,7 @@ Emulation Environments:
The Cygnus Support Release of the GNU Development Tools can be The Cygnus Support Release of the GNU Development Tools can be
configured for one such emulation at this time. configured for one such emulation at this time.
configure sun4 +ansi ./configure sun4 +ansi
will configure the source such that when built in a sun4 will configure the source such that when built in a sun4
development environment the resulting development environment is development environment the resulting development environment is
@ -378,11 +378,11 @@ Emulation Environments:
Simple Cross Environments: Simple Cross Environments:
configure sun4 +target=a29k ./configure sun4 +target=a29k
will configure the tools such that when compiled in a sun4 will configure the tools such that when compiled in a sun4
development environment the resulting development environment can development environment the resulting development environment can
be used to create programs intended for a sun3. Again, this does be used to create programs intended for an a29k. Again, this does
not necessarily mean that the new development environment can be not necessarily mean that the new development environment can be
run on a sun4. That would depend on the development environment run on a sun4. That would depend on the development environment
used to build these tools. used to build these tools.
@ -409,7 +409,7 @@ Simple Cross Environments:
Crossing Into Targets: Crossing Into Targets:
configure a29k +target=a29k ./configure a29k +target=a29k
will configure the tools such that when compiled in an a29k will configure the tools such that when compiled in an a29k
development environment, the resulting development environment can development environment, the resulting development environment can
@ -445,7 +445,7 @@ Crossing Into Targets:
sun4 environment. sun4 environment.
If you happen to have an a29k lying around, you could now use If you happen to have an a29k lying around, you could now use
this fresh development environment on the a29k to three stage this fresh development environment on the a29k to three-stage
these tools all over again. This process would look just like it these tools all over again. This process would look just like it
did when we built the native sun4 development environment because did when we built the native sun4 development environment because
we would be building another native development environment, this we would be building another native development environment, this
@ -481,7 +481,7 @@ The Three Party Cross:
Most of the other permutations do exist in some form, but only one Most of the other permutations do exist in some form, but only one
more is interesting to the current discussion. more is interesting to the current discussion.
configure a29k +target=sun3 ./configure a29k +target=sun3
will configure the tools such that when compiled in an a29k will configure the tools such that when compiled in an a29k
development environment, the resulting development environment can development environment, the resulting development environment can
@ -580,6 +580,6 @@ may not exist. If fragments
This will configure the configure scripts themselves, recursively if This will configure the configure scripts themselves, recursively if
appropriate. appropriate.
* "configure -srcdir=foo" is not supported yet. At the moment, things * "./configure -srcdir=foo" is not supported yet. At the moment, things
will probably be configured correctly only for leaf directories, and will probably be configured correctly only for leaf directories, and
even they will not have paths to libraries set properly. even they will not have paths to libraries set properly.