Did you try: CPPFLAGS="$CPPFLAGS -DMACR..."
? John Sent via the Samsung GALAXY S® 5, an AT&T 4G LTE smartphone -------- Original message -------- From: "Andy Falanga (afalanga)" <afala...@micron.com> Date:04/02/2015 5:04 PM (GMT-07:00) To: automake@gnu.org Subject: The right way to use standard variable in configure.ac Hi, I placed the following in my configure.ac file: CPPFLAGS="-DMACRO1 -DMACRO2" because I found that as an example on a webpage someplace. I reviewed so many learning about the autotools that I don't recall which one now. I did this because there were some preprocessor flags that I wanted to have common to all sub-makefiles. I ran into a problem today, however, where I needed to add a -I directive to my CPPFLAGS in order to find the necessary headers. Then, the problem stepped in. Because I placed this line in configure.ac, it was transcribed, verbatim (as it should), into configure. The net result: not matter what I placed on the command line was ignored. For example, the following: CPPFLAGS=-I/path/to/the/alternate/location ./configure --build=x86_64-linux --host=arm-poky-linux-gnueabi The additional path wasn't being appended, it was being stomped. Did I miss a macro? How should this be done because, obviously, I've gotten it incorrect. Thanks, Andy
