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Add environment examples and hints.

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Kurt Zeilenga 1998-11-03 01:12:04 +00:00
parent 48aab762d2
commit 1963dde36d
1 changed files with 65 additions and 9 deletions
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74
INSTALL
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@ -24,8 +24,9 @@ these steps:
these options is provided in the 'CONFIGURE OPTIONS' section
below.
The configure script will also use your environmental
variables for determining compiler/linker options.
The configure script uses environmental variables for
determining compiler/linker options. See the HINTS
section for commonly used settings.
These environment variables are used:
CC C Compiler (cc, ecgs)
@ -33,8 +34,8 @@ these steps:
CPPFLAGS CPP Flags (-I/path/include -Ddef)
LDFLAGS LDFLAGS (-L/path/lib -llib)
A list of defines and other options are noted in the
'DEFINES and FLAGS' comments below.
See the 'USING ENVIRONMENT VARIABLES' section for information
on how to use the variables.
3. edit the file include/ldapconfig.h.edit to configure
the software for your site (the files are well-commented):
@ -113,16 +114,71 @@ Regrettably, this section has not been written (yet). See
"./configure --help" for current list of options.
DEFINES and FLAGS
USING ENVIRONMENT VARIABLES
The configure script will also use your environmental
variables for determining compiler/linker options. This can
be used to manual specify features and compilation options.
Supported Environmental Variables
CC C Compiler (cc, ecgs)
CFLAGS C Flags (-ansi)
CPPFLAGS CPP Flags (-I/path/include -Ddef)
LDFLAGS LDFLAGS (-L/path/lib -llib)
CC C Compiler (cc, ecgs)
CFLAGS C Flags (-ansi)
CPPFLAGS CPP Flags (-I/path/include -Ddef)
LDFLAGS LDFLAGS (-L/path/lib -llib)
PATH command path /usr/local/bin:/usr/bin:/bin
* Including alternative compilers
Use the CC environment variable to tell configure to
use a specific compiler. For example, to use ecgs
instead of the compiler configure choose, use:
[env] CC=ecgs ./configure
You can also use CC use specific flags with the
specified compiler. For example, to require strict
ANSI C using the GNU C Compiler, use:
[env] CC="gcc -ansi -predantic" ./configure
(you can use CFLAGS to specify compiler flags)
* Preprocessor Flags
You may specify additional preprocessor flags by setting
CPPFLAGS. For example, if you would like to use headers
installed in /usr/local/include, use:
[env] CPPFLAGS="-I/usr/local/include" ./configure
You can also use CPPFLAGS to specify preprocessor macros.
[env] CPPFLAGS="-D__SPECIAL_FLAG__" ./configure
* Linker Flags
You may specify additional linker flags by setting LDFLAGS.
For example, if you would like to use libraries installed
in /usr/local/lib, use:
[env] LDFLAGS="-L/usr/local/lib" ./configure
You can also use CPPFLAGS to specify linker flags:
[env] LDFLAGS="-Bstatic" ./configure
* Path
You may alter your path to affect configure ability to
find (or not find) commands. For example, to have configure
additionally look in /usr/css/bin for commands, use:
[env] PATH="/usr/css/bin:$PATH" ./configure
HINTS
* use software under installed in /usr/local/{include,lib}
[env] \
CPPFLAGS="-I/usr/local/include" \
LDFLAGS="-L/usr/local/lib" \
./configure
End of OpenLDAP INSTALL file.