disable ASDLGEN if hg won't work, or if python is not installed.
This change makes configure check for
- the existence of a hg repository
- the hg executable itself
- the python executable
Running $(srcdir)/Parser/asdl_c.py (i.e. ASDLGEN) will fail if any of
the above prerequisites is missing, so we now disable it instead.
closes #12225
diff --git a/configure.in b/configure.in
index 524282f..8e89c8f 100644
--- a/configure.in
+++ b/configure.in
@@ -832,7 +832,13 @@
AC_SUBST(HGVERSION)
AC_SUBST(HGTAG)
AC_SUBST(HGBRANCH)
+
+if test -e $srcdir/.hg/00changelog.i
+then
AC_CHECK_PROG(HAS_HG, hg, found, not-found)
+else
+HAS_HG=no-repository
+fi
if test $HAS_HG = found
then
HGVERSION="hg id -i \$(srcdir)"
@@ -844,6 +850,15 @@
HGBRANCH=""
fi
+AC_SUBST(DISABLE_ASDLGEN)
+DISABLE_ASDLGEN=""
+AC_CHECK_PROG(HAS_PYTHON, python, found, not-found)
+if test $HAS_HG != found -o $HAS_PYTHON != found
+then
+ DISABLE_ASDLGEN="@echo hg: $HAS_HG, python: $HAS_PYTHON! cannot run \$(srcdir)/Parser/asdl_c.py #"
+fi
+
+
case $MACHDEP in
bsdos*|hp*|HP*)
# install -d does not work on BSDI or HP-UX