diff --git a/configure.ac b/configure.ac
index e888601b1df8ba021ef566ecb5787573e3628156..e1255506a636722031c58398cb33056c43cffed3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,54 +1,55 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-## Definitions of macros
+## Definitions of private macros.
+
 # GIT_CONF_APPEND_LINE(LINE)
 # --------------------------
 # Append LINE to file ${config_append}
 AC_DEFUN([GIT_CONF_APPEND_LINE],
-[echo "$1" >> "${config_append}"])# GIT_CONF_APPEND_LINE
-#
+         [echo "$1" >> "${config_append}"])
+
 # GIT_ARG_SET_PATH(PROGRAM)
 # -------------------------
 # Provide --with-PROGRAM=PATH option to set PATH to PROGRAM
 # Optional second argument allows setting NO_PROGRAM=YesPlease if
 # --without-PROGRAM version used.
 AC_DEFUN([GIT_ARG_SET_PATH],
-[AC_ARG_WITH([$1],
- [AS_HELP_STRING([--with-$1=PATH],
-                 [provide PATH to $1])],
- [GIT_CONF_APPEND_PATH($1,$2)],[])
-])# GIT_ARG_SET_PATH
-#
+    [AC_ARG_WITH([$1],
+        [AS_HELP_STRING([--with-$1=PATH],
+                        [provide PATH to $1])],
+        [GIT_CONF_APPEND_PATH([$1], [$2])],
+        [])])
+
 # GIT_CONF_APPEND_PATH(PROGRAM)
-# ------------------------------
+# -----------------------------
 # Parse --with-PROGRAM=PATH option to set PROGRAM_PATH=PATH
 # Used by GIT_ARG_SET_PATH(PROGRAM)
 # Optional second argument allows setting NO_PROGRAM=YesPlease if
 # --without-PROGRAM is used.
 AC_DEFUN([GIT_CONF_APPEND_PATH],
-[m4_pushdef([GIT_UC_PROGRAM], m4_toupper([$1]))dnl
-PROGRAM=GIT_UC_PROGRAM; \
-if test "$withval" = "no"; then \
-	if test -n "$2"; then \
-		GIT_UC_PROGRAM[]_PATH=$withval; \
-		AC_MSG_NOTICE([Disabling use of ${PROGRAM}]); \
-		GIT_CONF_APPEND_LINE(NO_${PROGRAM}=YesPlease); \
-		GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=); \
-	else \
-		AC_MSG_ERROR([You cannot use git without $1]); \
-	fi; \
-else \
-	if test "$withval" = "yes"; then \
-		AC_MSG_WARN([You should provide path for --with-$1=PATH]); \
-	else \
-		GIT_UC_PROGRAM[]_PATH=$withval; \
-		AC_MSG_NOTICE([Setting GIT_UC_PROGRAM[]_PATH to $withval]); \
-		GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval); \
-	fi; \
-fi; \
-m4_popdef([GIT_UC_PROGRAM])]) # GIT_CONF_APPEND_PATH
-#
+    [m4_pushdef([GIT_UC_PROGRAM], m4_toupper([$1]))dnl
+    PROGRAM=GIT_UC_PROGRAM
+    if test "$withval" = "no"; then
+	if test -n "$2"; then
+		GIT_UC_PROGRAM[]_PATH=$withval
+		AC_MSG_NOTICE([Disabling use of ${PROGRAM}])
+		GIT_CONF_APPEND_LINE(NO_${PROGRAM}=YesPlease)
+		GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=)
+	else
+		AC_MSG_ERROR([You cannot use git without $1])
+	fi
+    else
+	if test "$withval" = "yes"; then
+		AC_MSG_WARN([You should provide path for --with-$1=PATH])
+	else
+		GIT_UC_PROGRAM[]_PATH=$withval
+		AC_MSG_NOTICE([Setting GIT_UC_PROGRAM[]_PATH to $withval])
+		GIT_CONF_APPEND_LINE(${PROGRAM}_PATH=$withval)
+	fi
+    fi
+    m4_popdef([GIT_UC_PROGRAM])])
+
 # GIT_PARSE_WITH(PACKAGE)
 # -----------------------
 # For use in AC_ARG_WITH action-if-found, for packages default ON.
@@ -56,22 +57,22 @@ m4_popdef([GIT_UC_PROGRAM])]) # GIT_CONF_APPEND_PATH
 # * Set PACKAGEDIR=PATH for --with-PACKAGE=PATH
 # * Unset NO_PACKAGE for --with-PACKAGE without ARG
 AC_DEFUN([GIT_PARSE_WITH],
-[m4_pushdef([GIT_UC_PACKAGE], m4_toupper([$1]))dnl
-PACKAGE=GIT_UC_PACKAGE; \
-if test "$withval" = "no"; then \
-	NO_[]GIT_UC_PACKAGE=YesPlease; \
-elif test "$withval" = "yes"; then \
-	NO_[]GIT_UC_PACKAGE=; \
-else \
-	NO_[]GIT_UC_PACKAGE=; \
-	GIT_UC_PACKAGE[]DIR=$withval; \
-	AC_MSG_NOTICE([Setting GIT_UC_PACKAGE[]DIR to $withval]); \
-	GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval); \
-fi \
-m4_popdef([GIT_UC_PACKAGE])]) # GIT_PARSE_WITH
-#
+    [m4_pushdef([GIT_UC_PACKAGE], m4_toupper([$1]))dnl
+    PACKAGE=GIT_UC_PACKAGE
+    if test "$withval" = "no"; then
+	NO_[]GIT_UC_PACKAGE=YesPlease
+    elif test "$withval" = "yes"; then
+	NO_[]GIT_UC_PACKAGE=
+    else
+	NO_[]GIT_UC_PACKAGE=
+	GIT_UC_PACKAGE[]DIR=$withval
+	AC_MSG_NOTICE([Setting GIT_UC_PACKAGE[]DIR to $withval])
+	GIT_CONF_APPEND_LINE(${PACKAGE}DIR=$withval)
+    fi
+    m4_popdef([GIT_UC_PACKAGE])])
+
 # GIT_PARSE_WITH_SET_MAKE_VAR(WITHNAME, VAR, HELP_TEXT)
-# ---------------------
+# -----------------------------------------------------
 # Set VAR to the value specied by --with-WITHNAME.
 # No verification of arguments is performed, but warnings are issued
 # if either 'yes' or 'no' is specified.
@@ -80,33 +81,32 @@ m4_popdef([GIT_UC_PACKAGE])]) # GIT_PARSE_WITH
 AC_DEFUN([GIT_PARSE_WITH_SET_MAKE_VAR],
 [AC_ARG_WITH([$1],
  [AS_HELP_STRING([--with-$1=VALUE], $3)],
- if test -n "$withval"; then \
-  if test "$withval" = "yes" -o "$withval" = "no"; then \
+ if test -n "$withval"; then
+  if test "$withval" = "yes" -o "$withval" = "no"; then
     AC_MSG_WARN([You likely do not want either 'yes' or 'no' as]
-		     [a value for $1 ($2).  Maybe you do...?]); \
-  fi; \
-  \
-  AC_MSG_NOTICE([Setting $2 to $withval]); \
-  GIT_CONF_APPEND_LINE($2=$withval); \
+		     [a value for $1 ($2).  Maybe you do...?])
+  fi
+  AC_MSG_NOTICE([Setting $2 to $withval])
+  GIT_CONF_APPEND_LINE($2=$withval)
  fi)])# GIT_PARSE_WITH_SET_MAKE_VAR
 
-dnl
-dnl GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE)
-dnl -----------------------------------------
-dnl Similar to AC_CHECK_FUNC, but on systems that do not generate
-dnl warnings for missing prototypes (e.g. FreeBSD when compiling without
-dnl -Wall), it does not work.  By looking for function definition in
-dnl libraries, this problem can be worked around.
+#
+# GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE)
+# -----------------------------------------
+# Similar to AC_CHECK_FUNC, but on systems that do not generate
+# warnings for missing prototypes (e.g. FreeBSD when compiling without
+# -Wall), it does not work.  By looking for function definition in
+# libraries, this problem can be worked around.
 AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[
   AC_SEARCH_LIBS([$1],,
   [$2],[$3])
 ],[$3])])
 
-dnl
-dnl GIT_STASH_FLAGS(BASEPATH_VAR)
-dnl -----------------------------
-dnl Allow for easy stashing of LDFLAGS and CPPFLAGS before running
-dnl tests that may want to take user settings into account.
+#
+# GIT_STASH_FLAGS(BASEPATH_VAR)
+# -----------------------------
+# Allow for easy stashing of LDFLAGS and CPPFLAGS before running
+# tests that may want to take user settings into account.
 AC_DEFUN([GIT_STASH_FLAGS],[
 if test -n "$1"; then
    old_CPPFLAGS="$CPPFLAGS"
@@ -164,14 +164,13 @@ AC_ARG_WITH([sane-tool-path],
 AC_ARG_WITH([lib],
  [AS_HELP_STRING([--with-lib=ARG],
                  [ARG specifies alternative name for lib directory])],
- [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=$withval); \
-fi; \
-],[])
+ [if test "$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 "$lib"; then
    AC_MSG_NOTICE([Setting lib to 'lib' (the default)])
@@ -237,9 +236,9 @@ AC_MSG_NOTICE([CHECKS for site configuration])
 # /foo/bar/include and /foo/bar/lib directories.
 AC_ARG_WITH(openssl,
 AS_HELP_STRING([--with-openssl],[use OpenSSL library (default is YES)])
-AS_HELP_STRING([],              [ARG can be prefix for openssl library and headers]),\
-GIT_PARSE_WITH(openssl))
-#
+AS_HELP_STRING([],              [ARG can be prefix for openssl library and headers]),
+GIT_PARSE_WITH([openssl]))
+
 # Define USE_LIBPCRE if you have and want to use libpcre. git-grep will be
 # able to use Perl-compatible regular expressions.
 #
@@ -249,17 +248,16 @@ GIT_PARSE_WITH(openssl))
 AC_ARG_WITH(libpcre,
 AS_HELP_STRING([--with-libpcre],[support Perl-compatible regexes (default is NO)])
 AS_HELP_STRING([],           [ARG can be also prefix for libpcre library and headers]),
-if test "$withval" = "no"; then \
-	USE_LIBPCRE=; \
-elif test "$withval" = "yes"; then \
-	USE_LIBPCRE=YesPlease; \
-else
-	USE_LIBPCRE=YesPlease; \
-	LIBPCREDIR=$withval; \
-	AC_MSG_NOTICE([Setting LIBPCREDIR to $withval]); \
-	GIT_CONF_APPEND_LINE(LIBPCREDIR=$withval); \
-fi \
-)
+    if test "$withval" = "no"; then
+	USE_LIBPCRE=
+    elif test "$withval" = "yes"; then
+	USE_LIBPCRE=YesPlease
+    else
+	USE_LIBPCRE=YesPlease
+	LIBPCREDIR=$withval
+	AC_MSG_NOTICE([Setting LIBPCREDIR to $withval])
+	GIT_CONF_APPEND_LINE(LIBPCREDIR=$withval)
+    fi)
 #
 # Define NO_CURL if you do not have curl installed.  git-http-pull and
 # git-http-push are not built, and you cannot use http:// and https://
@@ -367,7 +365,7 @@ AC_ARG_WITH(tcltk,
 AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)])
 AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.])
 AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if])
-AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\
+AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),
 GIT_PARSE_WITH(tcltk))
 #