From 374747c4f67f6f1975d45b7efd3017e83eada1b5 Mon Sep 17 00:00:00 2001
From: Christian Stimming <stimming@tuhh.de>
Date: Fri, 13 Apr 2012 20:43:23 +0000
Subject: [PATCH] Check whether header <pow.h> really exists before including
 it.

The windows build has been failing for several days due to this.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@22146 57a11ea4-9604-0410-9ed3-97b8803252fd
---
 configure.ac                 | 2 +-
 src/libqof/qof/gnc-numeric.c | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 0ccf291860..e0a18b88e8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -153,7 +153,7 @@ AC_PROG_MAKE_SET
 AC_PROG_LN_S
 AC_HEADER_STDC
 
-AC_CHECK_HEADERS(limits.h sys/time.h sys/times.h sys/wait.h)
+AC_CHECK_HEADERS(limits.h sys/time.h sys/times.h sys/wait.h pow.h)
 AC_CHECK_FUNCS(stpcpy memcpy timegm towupper)
 AC_CHECK_FUNCS(setenv,,[
   AC_CHECK_FUNCS(putenv,,[
diff --git a/src/libqof/qof/gnc-numeric.c b/src/libqof/qof/gnc-numeric.c
index ed2876ca9d..48543ee930 100644
--- a/src/libqof/qof/gnc-numeric.c
+++ b/src/libqof/qof/gnc-numeric.c
@@ -27,7 +27,9 @@
 #include <glib.h>
 #include <math.h>
 #if defined(G_OS_WIN32) && !defined(_MSC_VER)
-# include <pow.h>
+# ifdef HAVE_POW_H
+#   include <pow.h>
+# endif
 #endif
 #include <stdio.h>
 #include <stdlib.h>