-or giving "configure" initial values for these variables by setting them
-in the environment. Using a Bourne-compatible shell (such as sh,ksh,zsh),
-
-you can do that on the command line like this:
- CC=c89 CFLAGS=-O2 LIBS=-lposix ./configure
-
+or giving "configure" initial values for these in its command line or in
+its environment. For example:
+
+ ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
+