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| -rw-r--r-- | configure.in | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 4073ff190e..bf7b307e2e 100644 --- a/configure.in +++ b/configure.in @@ -505,6 +505,16 @@ if test "$INSTALL" = "${srcdir}/scripts/install-sh -c"; then fi AC_PROG_LN_S +# We need the physical current working directory. We cannot use the +# "pwd -P" shell builtin since that's not portable. Instead we try to +# find a pwd binary. Note that assigning to the PWD environment +# variable might have some interesting side effects, so we don't do +# that. +AC_PATH_PROG(PWD_P, pwd, no) +if test "$PWD_P" = no; then + AC_MSG_ERROR(*** A pwd binary could not be found.) +fi + # These programs are version sensitive. AC_REQUIRE([AC_CHECK_TOOL_PREFIX])dnl AC_CHECK_PROG_VER(CC, ${ac_tool_prefix}gcc ${ac_tool_prefix}cc, -v, |