configure: ensure settings from user are also usable in the script

Allow things set by the user (--with-lib, --with-iconv, etc) to set
variables for use by other parts of the script.  Display values as
they're set.

Signed-off-by: Ben Walton <bwalton@artsci.utoronto.ca>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/configure.ac b/configure.ac
index 082a03d3cf6e9416c80b5d486c3191d3ac64cca4..0b314d73593c18f92bb10ac9027e884aa602de32 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -42,6 +42,8 @@ else \
        if test "$withval" = "yes"; then \
                AC_MSG_WARN([You should provide path for --with-$1=PATH]); \
        else \
+               m4_toupper($1)_PATH=$withval; \
+               AC_MSG_NOTICE([Setting m4_toupper($1)_PATH to $withval]); \
                GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \
        fi; \
 fi; \
@@ -61,6 +63,8 @@ elif test "$withval" = "yes"; then \
        m4_toupper(NO_$1)=; \
 else \
        m4_toupper(NO_$1)=; \
+       m4_toupper($1)DIR=$withval; \
+       AC_MSG_NOTICE([Setting m4_toupper($1)DIR to $withval]); \
        GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \
 fi \
 ])# GIT_PARSE_WITH
@@ -86,9 +90,16 @@ AC_ARG_WITH([lib],
  [if test "$withval" = "no" || test "$withval" = "yes"; then \
        AC_MSG_WARN([You should provide name for --with-lib=ARG]); \
 else \
+       lib=$withval; \
+       AC_MSG_NOTICE([Setting lib to '$lib']); \
        GIT_CONF_APPEND_LINE(lib=$withval); \
 fi; \
 ],[])
+
+if test -z "$lib"; then
+   AC_MSG_NOTICE([Setting lib to 'lib' (the default)])
+   lib=lib
+fi
 #
 # Define SHELL_PATH to provide path to shell.
 GIT_ARG_SET_PATH(shell)