From c52703c0a8adb4f64ec52e4bf602e9c17ef2c748 Mon Sep 17 00:00:00 2001
From: Stefan Metzmacher <metze@samba.org>
Date: Thu, 9 Jun 2005 07:51:58 +0000
Subject: [PATCH] r7425: configure check to see if a compiler can handle
 negative enum values if the compiler doesn't support it we pass --uint-enums
 to pidl

metze
---
 source/build/m4/check_cc.m4        | 14 ++++++++++++++
 source/build/m4/check_perl.m4      |  3 +++
 source/build/smb_build/makefile.pm |  4 ++--
 source/script/build_idl.sh         |  4 +++-
 4 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/source/build/m4/check_cc.m4 b/source/build/m4/check_cc.m4
index 68e938b7943..947112f4b6d 100644
--- a/source/build/m4/check_cc.m4
+++ b/source/build/m4/check_cc.m4
@@ -67,6 +67,20 @@ if test x"$samba_cv_immediate_structures" = x"yes"; then
    AC_DEFINE(HAVE_IMMEDIATE_STRUCTURES,1,[Whether the compiler supports immediate structures])
 fi
 
+############################################
+# check if the compiler can handle negative enum values
+AC_CACHE_CHECK([that the C compiler understands negative enum values],SMB_BUILD_CC_NEGATIVE_ENUM_VALUES, [
+    AC_TRY_COMPILE([
+#include <stdio.h>],
+[
+	enum negative_values { NEGATIVE_VALUE = 0xFFFFFFFF };
+],
+	SMB_BUILD_CC_NEGATIVE_ENUM_VALUES=yes,SMB_BUILD_CC_NEGATIVE_ENUM_VALUES=no)])
+if test x"$SMB_BUILD_CC_NEGATIVE_ENUM_VALUES" != x"yes"; then
+	AC_MSG_WARN([using --unit-enums for pidl])
+	PIDL_ARGS="$PIDL_ARGS --uint-enums"
+fi
+
 AC_MSG_CHECKING([for test routines])
 AC_TRY_RUN([#include "${srcdir-.}/build/tests/trivial.c"],
 	    AC_MSG_RESULT(yes),
diff --git a/source/build/m4/check_perl.m4 b/source/build/m4/check_perl.m4
index 5f5f614f843..5e493db875d 100644
--- a/source/build/m4/check_perl.m4
+++ b/source/build/m4/check_perl.m4
@@ -13,3 +13,6 @@ fi
 if test x"$debug" = x"yes";then
 	PERL="$PERL -W"
 fi
+
+PIDL_ARGS=""
+AC_SUBST(PIDL_ARGS)
diff --git a/source/build/smb_build/makefile.pm b/source/build/smb_build/makefile.pm
index 0367124e64f..b14991a840c 100644
--- a/source/build/smb_build/makefile.pm
+++ b/source/build/smb_build/makefile.pm
@@ -130,10 +130,10 @@ sub _prepare_IDL($)
 
 	return << '__EOD__';
 idl_full: build/pidl/idl.pm
-	CPP="@CPP@" PERL="$(PERL)" script/build_idl.sh FULL
+	CPP="@CPP@" PERL="$(PERL)" script/build_idl.sh FULL @PIDL_ARGS@
 
 idl: build/pidl/idl.pm
-	@CPP="@CPP@" PERL="$(PERL)" script/build_idl.sh PARTIAL
+	@CPP="@CPP@" PERL="$(PERL)" script/build_idl.sh PARTIAL @PIDL_ARGS@
 
 build/pidl/idl.pm: build/pidl/idl.yp
 	-yapp -s build/pidl/idl.yp
diff --git a/source/script/build_idl.sh b/source/script/build_idl.sh
index d15a9add318..2018d70d2b1 100755
--- a/source/script/build_idl.sh
+++ b/source/script/build_idl.sh
@@ -1,10 +1,12 @@
 #!/bin/sh
 
 FULLBUILD=$1
+shift 1
+PIDL_EXTRA_ARGS="$*"
 
 [ -d librpc/gen_ndr ] || mkdir -p librpc/gen_ndr || exit 1
 
-PIDL="$PERL ./build/pidl/pidl.pl --output librpc/gen_ndr/ndr_ --parse --header --parser --server --client --dcom-proxy --com-header --swig --odl"
+PIDL="$PERL ./build/pidl/pidl.pl --output librpc/gen_ndr/ndr_ --parse --header --parser --server --client --dcom-proxy --com-header --swig --odl $PIDL_EXTRA_ARGS"
 
 if [ x$FULLBUILD = xFULL ]; then
       echo Rebuilding all idl files in librpc/idl
-- 
2.11.4.GIT