[m-users.] C include dir

[Volker Wysk]

Hi!

On Linux, there is the pkg-config program. With "--cflags", it outputs
compiler options for the include directories needed for using a certain
library. For instance:

desktop ~ $ pkg-config --cflags glib-2.0
-I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include

That "-I" is for the C compiler, not for Mercury. Mercury uses "--c-include-
dir", when the foreign language interface is to be used. It would be nice,
if mmc understood "-I" too, as a synonym for "--c-include-dir". So "pkg-
config" could be used directly.

Cheers, 
Volker
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