Re: fatal error: krb5.h: No such file or directory

[Guy Harris <guy () alum mit edu>]

On Apr 20, 2018, at 1:35 PM, Guy Harris <guy () alum mit edu> wrote:

> From a quick look at the definition of pkg_search_module in CMake 3.5.1, it does *NOT* check for -isystem in the 
> output of pkg-config --cflags, it only checks for -I and --cflags-only-I.

No, --cflags-only-I is what's used as an argument to pkg-config to get the -I arguments.  It *doesn't* provide -isystem 
arguments; you need either --cflags *or --cflags-only-other.

> So perhaps what we have to do with *any* package found with pkg-config is to use *all* of <XPREFIX>_CFLAGS, rather 
> than using <XPREFIX>_INCLUDE_DIRS.  There might be other flags that pig-config supplies that might be necessary when 
> compiling - presumably it wouldn't supply them if they weren't necessary or at least recommended.

Or add <XPREFIX>_CFLAGS_OTHER, in addition to using <XPREFIX>_INCLUDE_DIRS, which might be a bit safer (and simpler).

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