* Removed compile-time checks for _SC_OPEN_MAX, _PC_PATH_MAX and _SC_PAGESIZE

and used simple build-time #ifdefs.


git-svn-id: svn://svn.zoy.org/elk/trunk@196 55e467fa-43c5-0310-a8a2-de718669efc6

src/heap-gen.c

@@ -42,7 +42,7 @@
 #if defined(MPROTECT_SIG) || defined(MPROTECT_MMAP)
 #  include <sys/mman.h>
 #endif
-#if defined(HAVE_GETPAGESIZE) || defined(SC_PAGESIZE_IN_UNISTD_H)
+#if defined(HAVE_UNISTD_H)
 #  include <unistd.h>
 #  if defined(_SC_PAGE_SIZE) && !defined(_SC_PAGESIZE)   /* Wrong in HP-UX */
 #    define _SC_PAGESIZE _SC_PAGE_SIZE
@@ -493,7 +493,7 @@ void Make_Heap (int size) {
      * then calculate the resulting number of heap pages.
      */
 
-#if defined(SC_PAGESIZE_IN_UNISTD_H)
+#if defined(_SC_PAGESIZE)
     if ((bytes_per_pp = sysconf (_SC_PAGESIZE)) == -1)
         Fatal_Error ("sysconf(_SC_PAGESIZE) failed; can't get pagesize");
 #elif defined(HAVE_GETPAGESIZE)

src/io.c

@@ -40,7 +40,7 @@
 #include <sys/param.h>
 #include <sys/stat.h>
 
-#ifdef PC_PATH_MAX_IN_UNISTD_H
+#ifdef HAVE_UNISTD_H
 #  include <unistd.h>
 #endif
 
@@ -122,7 +122,7 @@ unsigned int Path_Max () {
     return PATH_MAX;
 #elif defined(MAXPATHLEN) /* 4.3 BSD */
     return MAXPATHLEN;
-#elif defined(PC_PATH_MAX_IN_UNISTD_H)
+#elif defined(_PC_PATH_MAX)
     static int r;
     if (r == 0) {
         if ((r = pathconf ("/", _PC_PATH_MAX)) == -1)