From ad544ba1cd40539d87c6357dbd74bc753e546340 Mon Sep 17 00:00:00 2001
From: Paul Brook <paul@codesourcery.com>
Date: Wed, 20 Sep 2006 17:06:36 +0000
Subject: 2006-09-20  Paul Brook  <paul@codesourcery.com>

	libgloss/
	* configure.in: Add check for .init_array.
	* configure: Regenerate.
---
 ChangeLog.csl         |  6 ++++++
 libgloss/configure    | 35 +++++++++++++++++++++++++++++++++++
 libgloss/configure.in | 25 +++++++++++++++++++++++++
 3 files changed, 66 insertions(+)

diff --git a/ChangeLog.csl b/ChangeLog.csl
index 6682c1382..485e4188d 100644
--- a/ChangeLog.csl
+++ b/ChangeLog.csl
@@ -1,3 +1,9 @@
+2006-09-20  Paul Brook  <paul@codesourcery.com>
+
+	libgloss/
+	* configure.in: Add check for .init_array.
+	* configure: Regenerate.
+
 2006-09-20  Paul Brook  <paul@codesourcery.com>
 
 	newlib/
diff --git a/libgloss/configure b/libgloss/configure
index 1b2f62305..fd765dc01 100755
--- a/libgloss/configure
+++ b/libgloss/configure
@@ -1031,6 +1031,40 @@ else
 fi
 
 
+echo $ac_n "checking for .preinit_array/.init_array/.fini_array support""... $ac_c" 1>&6
+echo "configure:1036: checking for .preinit_array/.init_array/.fini_array support" >&5
+if eval "test \"`echo '$''{'libc_cv_initfinit_array'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.c <<EOF
+int _start (void) { return 0; }
+int __start (void) { return 0; }
+int foo (void) { return 1; }
+int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
+EOF
+if { ac_try='${CC} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest conftest.c
+		   -static -nostartfiles -nostdlib 1>&AS_MESSAGE_LOG_FD'; { (eval echo configure:1047: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }
+then
+  if readelf -S conftest | grep -e INIT_ARRAY > /dev/null; then
+    libc_cv_initfinit_array=yes
+  else
+    libc_cv_initfinit_array=no
+  fi
+else
+  libc_cv_initfinit_array=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$libc_cv_initfinit_array" 1>&6
+
+if test $libc_cv_initfinit_array = yes; then
+  cat >> confdefs.h <<EOF
+#define HAVE_INITFINI_ARRAY 1
+EOF
+
+fi
+
 host_makefile_frag=${srcdir}/config/default.mh
 
 host_makefile_frag_path=$host_makefile_frag
@@ -1207,6 +1241,7 @@ s%@AS@%$AS%g
 s%@AR@%$AR%g
 s%@LD@%$LD%g
 s%@RANLIB@%$RANLIB%g
+s%@libc_cv_initfinit_array@%$libc_cv_initfinit_array%g
 s%@host_makefile_frag_path@%$host_makefile_frag_path%g
 /@host_makefile_frag@/r $host_makefile_frag
 s%@host_makefile_frag@%%g
diff --git a/libgloss/configure.in b/libgloss/configure.in
index 3eca088ec..fa5f459d7 100644
--- a/libgloss/configure.in
+++ b/libgloss/configure.in
@@ -181,6 +181,31 @@ LD=${LD-ld}
 AC_SUBST(LD)
 AC_PROG_RANLIB
 
+AC_CACHE_CHECK(for .preinit_array/.init_array/.fini_array support,
+	       libc_cv_initfinit_array, [dnl
+cat > conftest.c <<EOF
+int _start (void) { return 0; }
+int __start (void) { return 0; }
+int foo (void) { return 1; }
+int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
+EOF
+if AC_TRY_COMMAND([${CC} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest conftest.c
+		   -static -nostartfiles -nostdlib 1>&AS_MESSAGE_LOG_FD])
+then
+  if readelf -S conftest | grep -e INIT_ARRAY > /dev/null; then
+    libc_cv_initfinit_array=yes
+  else
+    libc_cv_initfinit_array=no
+  fi
+else
+  libc_cv_initfinit_array=no
+fi
+rm -f conftest*])
+AC_SUBST(libc_cv_initfinit_array)
+if test $libc_cv_initfinit_array = yes; then
+  AC_DEFINE_UNQUOTED(HAVE_INITFINI_ARRAY)
+fi
+
 host_makefile_frag=${srcdir}/config/default.mh
 
 dnl We have to assign the same value to other variables because autoconf
-- 
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