commit 5be7d047f6bf54cc577e311b5426c463d2b9b131
author Behdad Esfahbod <behdad@behdad.org> Tue May 17 15:05:34 2011 -0400
committer Behdad Esfahbod <behdad@behdad.org> Tue May 17 15:56:31 2011 -0400
tree c32930d88f080b2f5472aa9551487bb340833759
parent 4053f3f788353448b41e541ee617aafbe1cac366

Check for mmap()

Apparently there exist systems with mprotect(), but not mmap()?

configure.ac

diff --git a/configure.ac b/configure.ac
index 96dbca5..ba3290a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -34,7 +34,7 @@
 
 
 # Functions and headers
-AC_CHECK_FUNCS(mprotect sysconf getpagesize)
+AC_CHECK_FUNCS(mprotect sysconf getpagesize mmap)
 AC_CHECK_HEADERS(unistd.h sys/mman.h)
 
 # Compiler flags

test/test-blob.c

diff --git a/test/test-blob.c b/test/test-blob.c
index f3f7a86..5fcb208 100644
--- a/test/test-blob.c
+++ b/test/test-blob.c
@@ -28,7 +28,7 @@
 
 /* Unit tests for hb-blob.h */
 
-#if defined(HAVE_SYS_MMAN_H) && defined(HAVE_MPROTECT)
+#if defined(HAVE_SYS_MMAN_H) && defined(HAVE_MPROTECT) && defined(HAVE_MMAP)
 
 # define TEST_MMAP 1
 
@@ -109,6 +109,7 @@
 }
 
 
+#ifdef TEST_MMAP
 static uintptr_t
 get_pagesize (void)
 {
@@ -133,6 +134,7 @@
   free_up (fixture);
   munmap (fixture->data, get_pagesize ());
 }
+#endif
 
 #include <errno.h>
 static void
@@ -164,7 +166,7 @@
       free_func = (hb_destroy_func_t) free_up_free;
       break;
 
-#if TEST_MMAP
+#ifdef TEST_MMAP
     case HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE:
     {
       uintptr_t pagesize = get_pagesize ();