AX_DETECT_GIT_HEAD: detect git version with newer versions of git
commit1c7e2a47d57c1e2083ed17bef90c748a8e22ffb2
authorSven Verdoolaege <skimo@kotnet.org>
Mon, 23 Dec 2013 09:12:10 +0000 (23 10:12 +0100)
committerSven Verdoolaege <skimo@kotnet.org>
Wed, 22 Mar 2017 11:40:51 +0000 (22 12:40 +0100)
treeadd187f093d71b6f96d0d5525d1b5f1b95e8525d
parent151de982088b7a5618b60fbfe771ccf17e010136
AX_DETECT_GIT_HEAD: detect git version with newer versions of git

In particular, if ppcg is used as a submodule, then in newer versions
of git, .git may be a file containing the path of the real directory
that has the repository.

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
m4/ax_detect_git_head.m4