Hi,
I'm quite confused by the behaviour of CVS automake and AM_CFLAGS.
Given the following Makefile.am
bin_PROGRAMS = foo
foo_SOURCES = foo.c sub/foo2.c
it turns out that "foo.c" is compiled using $(COMPILE), and hence
includes AM_CFLAGS. However, "foo2.c" is compiled *without*
AM_CFLAGS. Indeed, in automake's handle_languages(), "foo_CFLAGS" is
explicitly substituted for AM_CFLAGS.
The upshot is that "foo.c" is compiled using AM_CFLAGS but NOT
foo_CFLAGS, while "foo2.c" is compiled NOT using AM_CFLAGS but using
foo_CFLAGS.
That strikes me as inconsistent. What is intended?
It seems to me that AM_CFLAGS should always be there. Assuming this is
true, I started a test case to detect when this is not true (attached).
Regards,
-Steve
#! /bin/sh
# Test that AM_ shadow variables are honoured.
. $srcdir/defs || exit 1
cat >> configure.in << 'END'
AC_PROG_CC
AC_PROG_CXX
END
cat > Makefile.am << 'END'
bin_PROGRAMS = foo bar
foo_SOURCES = foo.c sub/foo2.c
bar_SOURCES = bar.cc sub/bar2.cc
END
# Make sure `compile' is required.
$ACLOCAL || exit 1
$AUTOMAKE || exit 1
: > compile
$AUTOMAKE || exit 1
# Each line with variable VAR should have shadow variable AM_VAR
# (assume they will appear on the same line)
test "`grep '$(CPPFLAGS)' Makefile.in | grep -v '$(AM_CPPFLAGS)'`" && exit 1
test "`grep '$(CFLAGS)' Makefile.in | grep -v '$(AM_CFLAGS)'`" && exit 1
test "`grep '$(LDFLAGS)' Makefile.in | grep -v '$(AM_LDFLAGS)'`" && exit 1
test "`grep '$(CXXFLAGS)' Makefile.in | grep -v '$(AM_CXXFLAGS)'`" && exit 1
test "`grep '$(OBJCFLAGS)' Makefile.in | grep -v '$(AM_OBJCFLAGS)'`" && exit 1
test "`grep '$(ASFLAGS)' Makefile.in | grep -v '$(AM_ASFLAGS)'`" && exit 1
test "`grep '$(FFLAGS)' Makefile.in | grep -v '$(AM_FFLAGS)'`" && exit 1
test "`grep '$(RFLAGS)' Makefile.in | grep -v '$(AM_RFLAGS)'`" && exit 1
test "`grep '$(GCJFLAGS)' Makefile.in | grep -v '$(AM_GCJFLAGS)'`" && exit 1
test "`grep '$(YFLAGS)' Makefile.in | grep -v '$(AM_YFLAGS)'`" && exit 1
exit 0
--
by Rocket to the Moon,
by Airplane to the Rocket,
by Taxi to the Airport,
by Frontdoor to the Taxi,
by throwing back the blanket and laying down the legs ...
- They Might Be Giants
