AM_CPPFLAGS not applied for CHECK programs?

[Bob Friesenhahn]

I am using automake 1.9.6.  Today I was shocked to learn that programs 
listed in check_PROGRAMS are not built using the same CPPFLAGS options 
as normal programs.

Normal code is built using

  $(AM_CPPFLAGS) $(CPPFLAGS)

but it appears that check programs are only being built using

  $(CPPFLAGS)

so the wrong header files may be used.  If it makes any difference, I 
am using a non-recursive build, and the check programs are in a 
subdirectory.

In my Makefile.am I have been careful to define AM_CPPFLAGS so that it 
prepares the proper include path to use header files from the build 
and source directories.  Without the extra AM_CPPFLAGS the build is 
incorrect or fails.

Bob
======================================
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/