Do not require that .git be a directory

Problem reportyed by Phillip Lord.
* admin/update_autogen, autogen.sh, build-aux/gitlog-to-emacslog:
* configure.ac, make-dist:
Do not require that .git be a directory, as 'git worktree' makes
it a file and not a directory.

5 files changed, 6 insertions, 6 deletions

diff --git a/admin/update_autogen b/admin/update_autogen
index 199a3aad093..1e8aae2bd44 100755
--- a/admin/update_autogen
+++ b/admin/update_autogen
@@ -49,7 +49,7 @@ cd ../
 
 if [ -d .bzr ]; then
     vcs=bzr
-elif [ -d .git ]; then
+elif [ -e .git ]; then
     vcs=git
 else
     die "Cannot determine vcs"
diff --git a/autogen.sh b/autogen.sh
index 904246509fa..2e10a77cb37 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -330,7 +330,7 @@ fi
 
 if test ! -f configure; then
     echo "You can now run '$0 autoconf'."
-elif test -d .git && test $git_was_ok = false && test $do_git = false; then
+elif test -e .git && test $git_was_ok = false && test $do_git = false; then
     echo "You can now run '$0 git'."
 elif test ! -f config.status ||
         test -n "`find src/stamp-h.in -newer config.status`"; then
diff --git a/build-aux/gitlog-to-emacslog b/build-aux/gitlog-to-emacslog
index 5c187f5eae0..6b9cfc145bc 100755
--- a/build-aux/gitlog-to-emacslog
+++ b/build-aux/gitlog-to-emacslog
@@ -68,7 +68,7 @@ if [ -f "$output" ]; then
 fi
 
 # If this is not a Git repository, just generate an empty ChangeLog.
-test -d .git || {
+test -e .git || {
   >"$output"
   exit
 }
diff --git a/configure.ac b/configure.ac
index 790ff84365e..8f311cf7872 100644
--- a/configure.ac
+++ b/configure.ac
@@ -874,11 +874,11 @@ AC_ARG_ENABLE([gcc-warnings],
    gl_gcc_warnings=$enableval],
   [# By default, use 'warn-only' if it looks like the invoker of 'configure'
    # is a developer as opposed to a builder.  This is most likely true
-   # if GCC is recent enough and there is a .git subdirectory;
+   # if GCC is recent enough and there is a .git directory or file;
    # however, if there is also a .tarball-version file it is probably
    # just a release imported into Git for patch management.
    gl_gcc_warnings=no
-   test -d "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version &&
+   test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version &&
      gl_GCC_VERSION_IFELSE([5], [3], [gl_gcc_warnings=warn-only])]
 )
 
diff --git a/make-dist b/make-dist
index 1cd1a50d75a..c0b0a0466f2 100755
--- a/make-dist
+++ b/make-dist
@@ -284,7 +284,7 @@ echo "Creating top directory: '${tempdir}'"
 mkdir ${tempdir}
 
 if [ "$changelog" = yes ]; then
-  if test -d .git; then
+  if test -e .git; then
     echo "Making top-level ChangeLog"
     make ChangeLog CHANGELOG=${tempdir}/ChangeLog || \
       { x=$?; echo "make ChangeLog FAILED (try --no-changelog?)" >&2; exit $x; }