m4/ae_in_git_repo.m4

   1 # SPDX-FileCopyrightText: 2021 Michael Jeanson <mjeanson@efficios.com>
   2 #
   3 # SPDX-License-Identifier: GPL-2.0-or-later WITH LicenseRef-Autoconf-exception-macro
   4 #
   5 # SYNOPSIS
   6 #
   7 # AE_IF_IN_GIT_REPO(ACTION-IF-TRUE, [ACTION-IF-FALSE])
   8 #
   9 # DESCRIPTION
  10 #
  11 # Check if we are building from the git repository.
  12 #
  13 # The cache variable for this test is `ae_cv_in_git_repo`.
  14 #
  15 # ---------------------------------------------------------------------------
  16
  17 #serial 2
  18
  19 AC_DEFUN([AE_IF_IN_GIT_REPO], [
  20   AC_CACHE_VAL([ae_cv_in_git_repo], [
  21
  22       dnl We're in the Git repository; the `bootstrap` file
  23       dnl is not distributed in tarballs
  24       AS_IF([test -f "$srcdir/bootstrap"],
  25         [ae_cv_in_git_repo=yes],
  26         [ae_cv_in_git_repo=no])
  27   ])
  28
  29   AS_IF([test "x$ae_cv_in_git_repo" = "xyes"], [dnl
  30     $1
  31   ], [: dnl
  32     $2
  33   ])
  34 ])