1 files changed, 87 insertions, 0 deletions
diff --git a/t/am-default-source-ext.sh b/t/am-default-source-ext.sh
new file mode 100644
index 000000000..082c7a1fb
--- /dev/null
+++ b/t/am-default-source-ext.sh
@@ -0,0 +1,87 @@
+#! /bin/sh
+# Copyright (C) 2008-2017 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# AM_DEFAULT_SOURCE_EXT
+
+required='cc c++'
+. test-init.sh
+
+cat >> configure.ac << 'END'
+AC_PROG_CC
+AC_PROG_CXX
+AC_CONFIG_FILES([sub/Makefile sub2/Makefile])
+AM_CONDITIONAL([COND], [:])
+AC_OUTPUT
+END
+
+mkdir sub sub2
+
+cat > Makefile.am << 'END'
+SUBDIRS = sub sub2
+bin_PROGRAMS = foo
+END
+
+cat > sub/Makefile.am << 'END'
+bin_PROGRAMS = bar baz
+AM_DEFAULT_SOURCE_EXT = .cpp
+END
+
+cat > sub2/Makefile.am << 'END'
+bin_PROGRAMS = bla
+if COND
+AM_DEFAULT_SOURCE_EXT = .foo .quux
+endif
+SUFFIXES = .foo .c
+.foo.c:
+	cat $< >$@
+BUILT_SOURCES = bla.c
+CLEANFILES = bla.c
+END
+
+cat > foo.c << 'END'
+int main () { return 0; }
+END
+
+cp foo.c sub/bar.cpp
+cp foo.c sub/baz.cpp
+cp foo.c sub2/bla.foo
+
+$ACLOCAL
+$AUTOCONF
+
+# Conditional AM_DEFAULT_SOURCE_EXT does not work yet  :-(
+# (this limitation could be lifted).
+AUTOMAKE_fails --add-missing
+grep 'defined conditionally' stderr
+
+sed '/^if/d; /^endif/d' sub2/Makefile.am > t
+mv -f t sub2/Makefile.am
+
+# AM_DEFAULT_SOURCE_EXT can only assume one value
+# (lifting this limitation is not such a good idea).
+AUTOMAKE_fails --add-missing
+grep 'at most one value' stderr
+
+sed 's/ \.quux//' sub2/Makefile.am > t
+mv -f t sub2/Makefile.am
+
+$AUTOMAKE --add-missing
+
+./configure
+$MAKE
+$MAKE distcheck
+
+: