Use limits.h for PATH_MAX

We use PATH_MAX everywhere by including limits.h so there is no
point in doing a check for it in a different header when dealing
with FreeBSD's libfetch.

Also, remove autoconf check for strings.h header as it is not used
anywhere.

Signed-off-by: Allan McRae <allan@archlinux.org>
Signed-off-by: Dan McGee <dan@archlinux.org>

configure.ac

@@ -172,8 +172,8 @@ AS_IF([test "x$with_fetch" != "xno"],
 AM_CONDITIONAL([HAVE_LIBFETCH], [test "x$ac_cv_lib_fetch_fetchParseURL" = "xyes"])
 
 # Checks for header files.
-AC_CHECK_HEADERS([fcntl.h glob.h libintl.h locale.h mntent.h string.h strings.h \
-                  sys/ioctl.h sys/mount.h sys/param.h sys/statvfs.h sys/syslimits.h \
+AC_CHECK_HEADERS([fcntl.h glob.h libintl.h locale.h mntent.h string.h \
+                  sys/ioctl.h sys/mount.h sys/param.h sys/statvfs.h \
                   sys/time.h sys/types.h sys/ucred.h syslog.h wchar.h])
 
 # Checks for typedefs, structures, and compiler characteristics.

lib/libalpm/dload.c

@@ -29,10 +29,8 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <signal.h>
-/* the following two are needed on BSD for libfetch */
-#if defined(HAVE_SYS_SYSLIMITS_H)
-#include <sys/syslimits.h> /* PATH_MAX */
-#endif
+/* the following two are needed for FreeBSD's libfetch */
+#include <limits.h> /* PATH_MAX */
 #if defined(HAVE_SYS_PARAM_H)
 #include <sys/param.h> /* MAXHOSTNAMELEN */
 #endif

lib/libalpm/error.c

@@ -22,10 +22,8 @@
 
 /* TODO: needed for the libfetch stuff, unfortunately- we should kill it */
 #include <stdio.h>
-/* the following two are needed on BSD for libfetch */
-#if defined(HAVE_SYS_SYSLIMITS_H)
-#include <sys/syslimits.h> /* PATH_MAX */
-#endif
+/* the following two are needed for FreeBSD's libfetch */
+#include <limits.h> /* PATH_MAX */
 #if defined(HAVE_SYS_PARAM_H)
 #include <sys/param.h> /* MAXHOSTNAMELEN */
 #endif