Test C, C++, Fortran interface combinations

Previously the Fortran test created a single executable containing C,
C++, and Fortran sources.  This commit divides the executable into three
libraries corresponding to each language, and two executables testing
Fortran/C only and Fortran/C/C++ together.  The result tests more
combinations of using the languages together, and that language
requirements propagate through linking.

1 files changed, 6 insertions, 0 deletions

diff --git a/Tests/Fortran/maincxx.c b/Tests/Fortran/maincxx.c
new file mode 100644
index 0000000..d35ea7e
--- /dev/null
+++ b/Tests/Fortran/maincxx.c
@@ -0,0 +1,6 @@
+extern int myc(void);
+extern int mycxx(void);
+int main()
+{
+  return myc() + mycxx();
+}