m4/ae_in_git_repo.m4

   1 # SPDX-License-Identifier: MIT
   2 #
   3 # Copyright (C) 2021 Michael Jeanson <mjeanson@efficios.com>
   4 #
   5 # ae_in_git_repo.m4 -- Check if we are building from the git repo
   6 #
   7 # The cache variable for this test is `ae_cv_in_git_repo`.
   8 #
   9 # AE_IF_IN_GIT_REPO(ACTION-IF-TRUE, [ACTION-IF-FALSE])
  10 # ---------------------------------------------------------------------------
  11 AC_DEFUN([AE_IF_IN_GIT_REPO], [
  12   AC_CACHE_VAL([ae_cv_in_git_repo], [
  13
  14       dnl We're in the Git repository; the `bootstrap` file
  15       dnl is not distributed in tarballs
  16       AS_IF([test -f "$srcdir/bootstrap"],
  17         [ae_cv_in_git_repo=yes],
  18         [ae_cv_in_git_repo=no])
  19   ])
  20
  21   AS_IF([test "x$ae_cv_in_git_repo" = "xyes"], [dnl
  22     $1
  23   ], [: dnl
  24     $2
  25   ])
  26 ])