| 1 | diff --git a/m4/sigrok.m4 b/m4/sigrok.m4 |
| 2 | index 2ca2444..924b9df 100644 |
| 3 | |
| 4 | |
| 5 | m4_assert([$# >= 6])[]dnl |
| 6 | $1=$4 |
| 7 | sr_git_deps= |
| 8 | # Check if we can get revision information from git. |
| 9 | -sr_head=`git -C "$srcdir" rev-parse --verify --short HEAD 2>&AS_MESSAGE_LOG_FD` |
| 10 | +sr_head=`test -d "$srcdir"/.git && git -C "$srcdir" rev-parse --verify --short HEAD 2>&AS_MESSAGE_LOG_FD` |
| 11 | |
| 12 | AS_IF([test "$?" = 0 && test "x$sr_head" != x], [dnl |
| 13 | test ! -f "$srcdir/.git/HEAD" \ |