LDM build warnings

Hi

openSUSE Build Service checks packages being built and gives out
warnings/informations to fix issues, here is the one for the new LDM
package, please see what is required to get rid of these messages.

Kind regards

-J

I: Program is using implicit definitions of functions getting
   pointers or implemented by macros. These functions need to use their
   correct prototypes to allow correct argument passing on e.g. x86_64 .
     - Implicit memory/string functions need #include <string.h>.
     - Implicit *printf functions need #include <stdio.h>.
     - Implicit *printf functions need #include <stdio.h>.
     - Implicit *read* functions need #include <unistd.h>.
     - Implicit *recv* functions need #include <sys/socket.h>.
W: ldm2 implicit-pointer-decl ../src/ldminfo.c:168
W: ldm2 implicit-pointer-decl ldmgreetercomm.c:87
W: ldm2 implicit-pointer-decl ldminfo.c:168
W: ldm2 implicit-pointer-decl ssh.c:381, 450

I: Program is using uninitialized variables.
   Note the difference between "is used" and "may be used"
W: ldm2 uninitialized-variable greeter.c:282, 704

I: Program is using implicit definitions of special functions.
   these functions need to use their correct prototypes to allow
   the lightweight buffer overflow checking to work.
     - Implicit memory/string functions need #include <string.h>.
     - Implicit *printf functions need #include <stdio.h>.
     - Implicit *printf functions need #include <stdio.h>.
     - Implicit *read* functions need #include <unistd.h>.
     - Implicit *recv* functions need #include <sys/socket.h>.
E: ldm2 implicit-fortify-decl ../src/ldminfo.c:161
E: ldm2 implicit-fortify-decl ldminfo.c:161
E: ldm2 implicit-fortify-decl prefs.c:27
E: ldm2 implicit-fortify-decl ssh.c:153, 307

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