Hi,
My macOD 10.13 box I have access to right now has
/usr/include/sys/cdefs.h
which should be found by default.
I suspect this is a case of the OP's macOS10.14 does not have the
command line tools package installed (as this is depreciated in 10.14)
and thus does not have this header installed.
If so, then I go back to my last post. The best fix here is to use clang
instead of gcc.
cheers Chris
On 01/04/2019 10:18 am, Andrew Udvare wrote:
On 2019-04-01, at 05:10, Sean Lake <odysseus9...@gmail.com> wrote:
In file included from MWReddening.c:1:
/opt/local/lib/gcc8/gcc/x86_64-apple-darwin18/8.3.0/include-fixed/math.h:45:10:fatal
error: sys/cdefs.h: No such file or directory
#include <sys/cdefs.h>
^~~~~~~~~~~~~
You should have this file at:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/sys/cdefs.h
Assuming GCC 8 can use Apple's headers, add:
-I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include
Looking for similar errors on the web, I get pages like this
https://stackoverflow.com/questions/31045721/c-compiler-error-cdefs-h-not-found
that recommend installing a libc package. Will a similar solution work
in Macports? If so, which package(s)? If not, will modifying my CFLAGS
and LDFLAGS suffice? Currently, I have included "-I/opt/local/include"
in CFLAGS and "-L/opt/local/lib" in LDFLAGS, but that's obviously not
enough (or wrong).
There are some (dated) libc* packages. Run `port search 'Library for
cross-platform C'`.
