[PATCH] autoconf: Use autoconf to write installation directories to config.mak

This is beginning of patch series introducing installation configuration
using autoconf (and no other autotools) to git. The idea is to generate
config.mak using ./configure (generated from configure.ac) from
config.mak.in, so one can use autoconf as an _alternative_ to ordinary
Makefile, and creating one's own config.mak.

This patch includes minimal configure.ac and config.mak.in, so one 
can set installation directories using ./configure script
e.g. ./configure --prefix=/usr

Ignoring files generated by running autoconf and ./configure

Signed-off-by: Jakub Narebski <jnareb <at> gmail.com>

---

One of the ideas is to use in .spec RPM macro %configure which takes
care of setting all installation directories correctly.

Thoughts?

 .gitignore    |    4 ++++
 config.mak.in |   12 ++++++++++++
 configure.ac  |   11 +++++++++++
 3 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/.gitignore b/.gitignore
index 7b954d5..b0dd54d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -136,3 +136,7 @@ git-core.spec
 *.py[co]
 config.mak
 git-blame
+autom4te.cache
+config.log
+config.status
+configure
diff --git a/config.mak.in b/config.mak.in
new file mode 100644
index 0000000..82d80e2
--- /dev/null
+++ b/config.mak.in
@@ -0,0 +1,12 @@
+# git Makefile configuration, included in main Makefile
+# @configure_input@
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+bindir = @bindir@
+#gitexecdir = @libexecdir@/git-core/
+template_dir = @datadir@/git-core/templates/
+GIT_PYTHON_DIR = @datadir@/git-core/python
+
+srcdir = @srcdir@
+VPATH = @srcdir@
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..4003ff6
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,11 @@
+#                                               -*- Autoconf -*-
+# Process this file with autoconf to produce a configure script.
+
+AC_PREREQ(2.59)
+AC_INIT([git], [1.4.0], [git <at> vger.kernel.org])
+
+AC_CONFIG_SRCDIR([git.c])
+
+# Output files
+AC_CONFIG_FILES([config.mak])
+AC_OUTPUT
--

-- 
1.4.0