master a89c86888c4 1/3: Detect developer builds in git worktrees as well

[Mattias Engdegård]

branch: master
commit a89c86888c41c922e5dc6a4c9cfb303a7bd3ab4f
Author: Mattias Engdegård <mattiase@acm.org>
Commit: Mattias Engdegård <mattiase@acm.org>

    Detect developer builds in git worktrees as well
    
    * configure.ac (gcc-warnings): Don't require .git to be a directory.
    If you wondered why you didn't get any warnings, this may have been
    the reason.
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 855c4ec7df1..f63eb870ffb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1664,7 +1664,7 @@ AC_ARG_ENABLE([gcc-warnings],
    # 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
-   if test -d "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
+   if test -e "$srcdir"/.git && test ! -f "$srcdir"/.tarball-version; then
       # Clang typically identifies itself as GCC 4.2 or something similar
       # even if it is recent enough to accept the warnings we enable.
       AS_IF([test "$emacs_cv_clang" = yes],