From fceec98e767bce7ad2c24dde73cdcf8837e04013 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Fri, 30 Dec 2011 22:30:48 +0000
Subject: [PATCH] -add test for libunistring

---
 configure.ac | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/configure.ac b/configure.ac
index 6eccb5327..e6e465435 100644
--- a/configure.ac
+++ b/configure.ac
@@ -212,6 +212,7 @@ AC_ARG_ENABLE(gcc-hardening,
     LDFLAGS="$LDFLAGS -pie"
 fi])
 
+
 # Linker hardening options
 # Currently these options are ELF specific - you can't use this with MacOSX
 AC_ARG_ENABLE(linker-hardening,
@@ -367,6 +368,42 @@ fi
 # restore LIBS
 LIBS=$SAVE_LIBS
 
+# test for libunistring
+unistring=0
+AC_MSG_CHECKING(for libunistring)
+AC_ARG_WITH(unistring,
+   [  --with-unistring=PFX    base of libunistring installation],
+   [AC_MSG_RESULT([$with_unistring])
+    case $with_unistring in
+      no)
+        ;;
+      yes)
+        AC_CHECK_HEADERS(unistr.h,
+          AC_CHECK_LIB([unistring], [u8_check],
+            unistring=1))
+        ;;
+      *)
+        LDFLAGS="-L$with_unistring/lib $LDFLAGS"
+        CPPFLAGS="-I$with_unistring/include $CPPFLAGS"
+        AC_CHECK_HEADERS(unistr.h,
+          AC_CHECK_LIB([unistring], [u8_check],
+            EXT_LIB_PATH="-L$with_unistring/lib $EXT_LIB_PATH"
+            unistring=1))
+        ;;
+    esac
+   ],
+   [AC_MSG_RESULT([--with-unistring not specified])
+    AC_CHECK_HEADERS(unistr.h,
+     AC_CHECK_LIB([unistring], [u8_check],
+      unistring=1))])
+if test "$unistring" != 1
+then
+ AC_MSG_ERROR([GNUnet requires libunistring])
+fi
+# restore LIBS
+LIBS=$SAVE_LIBS
+
+
 
 # Checks for standard header files.
 AC_HEADER_DIRENT
-- 
2.25.1