Ken Thomases : configure: Add a check for libunwind.h.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 260832c5c86b6d22f7b77da5b834fc652755a3be
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=260832c5c86b6d22f7b77da5b834fc652755a3be

Author: Ken Thomases <ken at codeweavers.com>
Date:   Fri Jun  5 00:40:23 2015 -0500

configure: Add a check for libunwind.h.

---

 configure           | 1 +
 configure.ac        | 1 +
 include/config.h.in | 3 +++
 3 files changed, 5 insertions(+)

diff --git a/configure b/configure
index 1759dba..fa52cf7 100755
--- a/configure
+++ b/configure
@@ -6626,6 +6626,7 @@ for ac_header in \
 	lber.h \
 	ldap.h \
 	libproc.h \
+	libunwind.h \
 	link.h \
 	linux/cdrom.h \
 	linux/compiler.h \
diff --git a/configure.ac b/configure.ac
index 445c9d4..79110c1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -424,6 +424,7 @@ AC_CHECK_HEADERS(\
 	lber.h \
 	ldap.h \
 	libproc.h \
+	libunwind.h \
 	link.h \
 	linux/cdrom.h \
 	linux/compiler.h \
diff --git a/include/config.h.in b/include/config.h.in
index 0f435d1..eb61a94 100644
--- a/include/config.h.in
+++ b/include/config.h.in
@@ -360,6 +360,9 @@
 /* Define to 1 if you have the <libproc.h> header file. */
 #undef HAVE_LIBPROC_H
 
+/* Define to 1 if you have the <libunwind.h> header file. */
+#undef HAVE_LIBUNWIND_H
+
 /* Define to 1 if you have the <libv4l1.h> header file. */
 #undef HAVE_LIBV4L1_H