From: Owen Anderson <resistor@mac.com>
Date: Mon, 19 Jul 2010 19:24:37 +0000 (+0000)
Subject: Add support for detecting <mach-o/getsect.h> and the getsect() function.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=ba3fe6961798cbe9713e1d89b11f431def494f12;p=oota-llvm.git

Add support for detecting <mach-o/getsect.h> and the getsect() function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108737 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index be320cf3981..35cbc882263 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -1287,6 +1287,9 @@ fi
 dnl Try to find Darwin specific crash reporting library.
 AC_CHECK_HEADERS([CrashReporterClient.h])
 
+dnl Try to find Darwin specific linker-section library.
+AC_CHECK_HEADERS([mach-o/getsect.h])
+
 dnl===-----------------------------------------------------------------------===
 dnl===
 dnl=== SECTION 7: Check for types and structures
@@ -1362,6 +1365,22 @@ AC_LINK_IFELSE(
   AC_DEFINE(LLVM_MULTITHREADED, 0, Build multithreading support into LLVM)
   AC_MSG_WARN([LLVM will be built thread-unsafe because atomic builtins are missing]))
 
+dnl Check for Darwin-specific getsect().
+AC_MSG_CHECKING(for getsect())
+AC_COMPILE_IFELSE(
+  AC_LANG_SOURCE(
+    [[#include <mach-o/getsect.h>
+      int main() {
+        unsigned long p;
+        return (int)getsect("__DATA","´__pass_info", &p);
+      }
+    ]]),
+  AC_MSG_RESULT(yes)
+    AC_DEFINE(HAVE_GETSECT, 1, Have Darwin getsect() support),
+  AC_MSG_RESULT(no)
+    AC_DEFINE(HAVE_GETSECT, 1, Have Darwin getsect() support)
+)
+
 
 dnl===-----------------------------------------------------------------------===
 dnl===