[epiphany] configure.ac: a few more portability tests suggested by 'autoscan'

[Xan Lopez <xan src gnome org>]

commit 9dfbdf89279f112c36ab398c7b322a5a8d63bcec
Author: Xan Lopez <xan gnome org>
Date:   Sun Aug 16 17:48:24 2009 +0300

    configure.ac: a few more portability tests suggested by 'autoscan'

 configure.ac |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 03d2153..9ce51ec 100644
--- a/configure.ac
+++ b/configure.ac
@@ -169,10 +169,14 @@ fi
 # Portability checks
 # ******************
 
-AC_CHECK_FUNCS([mkdtemp])
+AC_CHECK_FUNCS([localtime_r memchr memmove memset mkdir mkdtemp realpath sqrt strchr strcspn strdup strerror strrchr strtol strtoul strstr])
 
 # for backtrace()
-AC_CHECK_HEADERS([execinfo.h])
+AC_CHECK_HEADERS([execinfo.h fcntl.h])
+AC_C_INLINE
+AC_FUNC_MKTIME
+AC_FUNC_STRTOD
+AC_TYPE_SIZE_T
 
 # Check for -Wdeclaration-after-statement (since gcc 3.4)