[Automake-NG] [PATCH 3/5] [ng] coverage: pure languages doesn't bring in C support

[Stefano Lattarini]

Automake, when dealing with a Makefile.am using a single "pure" language
(like C++ and Fortran), shouldn't output stuff related to C compilation.
Extend some tests checking this behaviour, since it is implemented by a
parts of the codebase we plan to touch soon.

* t/fnoc.sh, t/cxxnoc.sh: Removed, merged ...
* t/no-c.tap: ... in here.  Checks for more languages (Java, modern
Fortran, Objective C and Objective C++).
* t/suffix3.sh: Enhance.

Signed-off-by: Stefano Lattarini <address@hidden>
---
 t/cxxnoc.sh  |   37 -------------------------------------
 t/fnoc.sh    |   39 ---------------------------------------
 t/no-c.tap   |   57 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 t/suffix3.sh |    7 +++++++
 4 files changed, 64 insertions(+), 76 deletions(-)
 delete mode 100755 t/cxxnoc.sh
 delete mode 100755 t/fnoc.sh
 create mode 100755 t/no-c.tap

diff --git a/t/cxxnoc.sh b/t/cxxnoc.sh
deleted file mode 100755
index 66d0b0d..0000000
--- a/t/cxxnoc.sh
+++ /dev/null
@@ -1,37 +0,0 @@
-#! /bin/sh
-# Copyright (C) 1996-2012 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 <http://www.gnu.org/licenses/>.
-
-# Test to make sure pure C++ sources don't include C-specific code.
-
-. ./defs || Exit 1
-
-cat >> configure.ac << 'END'
-AC_PROG_CXX
-END
-
-cat > Makefile.am << 'END'
-sbin_PROGRAMS = anonymous
-anonymous_SOURCES = doe.C jane.C
-END
-
-: > doe.C
-: > jane.C
-
-$ACLOCAL
-$AUTOMAKE
-
-$FGREP '(CC)' Makefile.in && Exit 1
-Exit 0
diff --git a/t/fnoc.sh b/t/fnoc.sh
deleted file mode 100755
index fbd2135..0000000
--- a/t/fnoc.sh
+++ /dev/null
@@ -1,39 +0,0 @@
-#! /bin/sh
-# Copyright (C) 1998-2012 Free Software Foundation, Inc.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-# Test to make sure that pure Fortran 77 sources don't include
-# C-specific code.
-# Matthew D. Langston <address@hidden>
-
-. ./defs || Exit 1
-
-cat >> configure.ac << 'END'
-AC_PROG_F77
-END
-
-cat > Makefile.am << 'END'
-sbin_PROGRAMS = anonymous
-anonymous_SOURCES = doe.f jane.f
-END
-
-: > doe.f
-: > jane.f
-
-$ACLOCAL
-$AUTOMAKE
-
-grep '[^F]CC' Makefile.in | grep -v MKDEP && Exit 1
-Exit 0
diff --git a/t/no-c.tap b/t/no-c.tap
new file mode 100755
index 0000000..5adb056
--- /dev/null
+++ b/t/no-c.tap
@@ -0,0 +1,57 @@
+#! /bin/sh
+# Copyright (C) 2012 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 <http://www.gnu.org/licenses/>.
+
+# Projects using only Fortran or C++ shouldn't need C-related stuff.
+
+am_create_testdir=empty
+. ./defs || Exit 1
+
+plan_ 6
+
+only_ ()
+{
+  test $# -eq 3 || fatal_ "only_: bad usage"
+  lang=$1; shift
+  macro=$1; shift
+  sources=$*
+  : ================  $lang  ================ :
+  mkdir "$macro"
+  cd "$macro"
+  unindent > configure.ac <<END
+    AC_INIT([Only $2], [1.0])
+    AM_INIT_AUTOMAKE
+    AC_CONFIG_FILES([Makefile])
+    $macro
+END
+  echo bin_PROGRAMS = foo > Makefile.am
+  echo foo_SOURCES = $sources >> Makefile.am
+  r=ok
+  $ACLOCAL \
+    && $AUTOMAKE -a \
+    && not $EGREP '\(CC\)|\(CFLAGS\)|AM_CFLAGS' Makefile.in \
+    || r='not ok'
+  result_ "$r" "$lang only"
+  cd ..
+}
+
+only_ "C++"           AC_PROG_CXX    '1.cxx 2.cpp 3.c++ 4.cc 5.C'
+only_ "Fortran"       AC_PROG_FC     'a.f90 b.f95 c.f03 d.f08'
+only_ "Fortran 77"    AC_PROG_F77    'x.f y.for'
+only_ "Java"          AM_PROG_GCJ    'foo.java bar.class'
+only_ "Objective C"   AC_PROG_OBJC   'zardoz.m fu.m'
+only_ "Objective C++" AC_PROG_OBJCXX 'foo.mm bar.mm'
+
+:
diff --git a/t/suffix3.sh b/t/suffix3.sh
index 1ef8a2b..66be6cc 100755
--- a/t/suffix3.sh
+++ b/t/suffix3.sh
@@ -45,6 +45,13 @@ $FGREP foo.c Makefile.in && Exit 1
 # However Automake must figure that foo.zoo is eventually
 # transformed into foo.o, and use this latter file (to link foo).
 $FGREP 'foo.$(OBJEXT)' Makefile.in
+# Finally, our dummy package doesn't use C in any way, so it the
+# Makefile shouldn't contain stuff related to the C compiler.
+$FGREP '$(LINK)'   Makefile.in && Exit 1
+$FGREP 'AM_CFLAGS' Makefile.in && Exit 1
+$FGREP '$(CFLAGS)' Makefile.in && Exit 1
+$FGREP '$(CC)'     Makefile.in && Exit 1
+
 
 $AUTOCONF
 ./configure
-- 
1.7.9.5