[PATCH] Update configure script hints wrt precious env vars.

[Thien-Thi Nguyen <ttn@gnuvola.org>]

Personally, i dislike environment variable dependence.
Maybe that's exposure to lexical binding poisoning my tastes...
In any case, (info "(autoconf) Defining Variables") has more info.

thi

_________________________________________________________________________
From 7a7b846cc2eb1f6aadfb06ccb445642f2bc2dfa7 Mon Sep 17 00:00:00 2001
From: Thien-Thi Nguyen <ttn@gnuvola.org>
Date: Sat, 9 Jan 2010 10:07:48 +0100
Subject: [PATCH] Update configure script hints wrt precious env vars.

* README: Don't suggest setting vars before running configure.
Instead, suggest specifying them on the configure command-line.

Signed-off-by: Thien-Thi Nguyen <ttn@gnuvola.org>
---
 README |   19 +++++++++++--------
 1 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/README b/README
index 5669ce8..e799495 100644
--- a/README
+++ b/README
@@ -50,16 +50,19 @@ names (where that is supported), makes it impossible to later move the
 built executables and libraries to an installation location other than
 the one that was specified at build time.
 
-Another possible approach is to set CPPFLAGS and LDFLAGS before
-running configure, so that they include -I options for all the
+Another possible approach is to set CPPFLAGS and LDFLAGS on the
+configure command-line, so that they include -I options for all the
 non-standard places where you have installed header files and -L
 options for all the non-standard places where you have installed
 libraries.  This will allow configure and make to find those headers
-and libraries during the build.  The locations found will not be
-hardcoded into the build executables and libraries, so with this
-approach you will probably also need to set LD_LIBRARY_PATH
-correspondingly, to allow Guile to find the necessary libraries again
-at runtime.
+and libraries during the build.  E.g.:
+
+  ../configure [...] CPPFLAGS='-I/my/include' LDFLAGS='-L/my/lib'
+
+The locations found will not be hardcoded into the build executables and
+libraries, so with this approach you will probably also need to set
+LD_LIBRARY_PATH correspondingly, to allow Guile to find the necessary
+libraries again at runtime.
 
 
 Required External Packages ================================================
@@ -94,7 +97,7 @@ Guile requires the following external packages:
     compile and link options for libgc.  If you don't have pkg-config
     installed, or you have a version of libgc that doesn't provide a
     .pc file, you can work around this by setting some environment
-    variables before running ./configure:
+    as part of the configure command-line:
 
     - PKG_CONFIG=true
 
-- 
1.6.3.2