disable build of the solv tool for unsupported system types

Also gets rid of the no longer used NOSYSTEM.

CMakeLists.txt

@@ -129,7 +129,6 @@ ENDIF (HAIKU)
 
 IF (${have_system} STREQUAL x)
     MESSAGE (STATUS "Building for no system")
-    ADD_DEFINITIONS (-DNOSYSTEM)
 ENDIF (${have_system} STREQUAL x)
 IF (${have_system} STRGREATER xx)
     MESSAGE (FATAL_ERROR "Can only compile for one system type.")

examples/CMakeLists.txt

@@ -1,6 +1,10 @@
+IF (SUSE OR FEDORA OR DEBIAN)
+
 ADD_EXECUTABLE (solv solv.c)
 TARGET_LINK_LIBRARIES (solv libsolvext libsolv ${SYSTEM_LIBRARIES})
 
 INSTALL(TARGETS
     solv
     DESTINATION ${BIN_INSTALL_DIR})
+
+ENDIF (SUSE OR FEDORA OR DEBIAN)

examples/solv.c

@@ -216,15 +216,13 @@ yum_substitute(Pool *pool, char *line)
 #define TYPE_PLAINDIR	3
 #define TYPE_DEBIAN     4
 
-#ifndef NOSYSTEM
 static int
 read_repoinfos_sort(const void *ap, const void *bp)
 {
   const struct repoinfo *a = ap;
   const struct repoinfo *b = bp;
   return strcmp(a->alias, b->alias);
 }
-#endif
 
 #if defined(SUSE) || defined(FEDORA)
 
@@ -478,15 +476,6 @@ read_repoinfos(Pool *pool, int *nrepoinfosp)
 
 #endif
 
-#ifdef NOSYSTEM
-struct repoinfo *
-read_repoinfos(Pool *pool, int *nrepoinfosp)
-{
-  *nrepoinfosp = 0;
-  return 0;
-}
-#endif
-
 
 void
 free_repoinfos(struct repoinfo *repoinfos, int nrepoinfos)
@@ -1733,6 +1722,7 @@ read_repos(Pool *pool, struct repoinfo *repoinfos, int nrepoinfos)
 #endif
 
   repo = repo_create(pool, "@System");
+  memset(&stb, 0, sizeof(stb));
 #if defined(ENABLE_RPMDB) && (defined(SUSE) || defined(FEDORA))
   printf("rpm database:");
   if (stat(pool_prepend_rootdir_tmp(pool, "/var/lib/rpm/Packages"), &stb))
@@ -1742,10 +1732,6 @@ read_repos(Pool *pool, struct repoinfo *repoinfos, int nrepoinfos)
   printf("dpgk database:");
   if (stat(pool_prepend_rootdir_tmp(pool, "/var/lib/dpkg/status"), &stb))
     memset(&stb, 0, sizeof(stb));
-#endif
-#ifdef NOSYSTEM
-  printf("no installed database:");
-  memset(&stb, 0, sizeof(stb));
 #endif
   calc_checksum_stat(&stb, REPOKEY_TYPE_SHA256, 0, installedcookie);
   if (usecachedrepo(repo, 0, installedcookie, 0))