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 be320cf..35cbc88 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -1287,6 +1287,9 @@
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_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===