avoid sbrk(), which does not work with mprotect()

svn: r16832

diff --git a/os_dep.c b/os_dep.c
index 86d94559ca338649f31064b05867b96c5a60bdba..c6d4fcbb2221544dc75075a5d37c18e05e3a7b6a 100644 (file)
--- a/os_dep.c
+++ b/os_dep.c
@@ -1860,7 +1860,7 @@ ptr_t GC_unix_sbrk_get_mem(word bytes)
 /* By default, we try both sbrk and mmap, in that order. */
 ptr_t GC_unix_get_mem(word bytes)
 {
-    static GC_bool sbrk_failed = FALSE;
+    static GC_bool sbrk_failed = TRUE; /* PLTSCHEME: don't use sbrk */
     ptr_t result = 0;
 
     if (!sbrk_failed) result = GC_unix_sbrk_get_mem(bytes);