From 958ad381dbb4acdaf8435c8eef1c684e497f26db Mon Sep 17 00:00:00 2001
From: Frits van Bommel <fvbommel@wxs.nl>
Date: Sun, 8 Mar 2009 16:37:55 +0100
Subject: [PATCH] Fix to make sure to create gen/ in build dir and unbreak
 build with older perl

---
 CMakeLists.txt  | 1 +
 revisions.pl.in | 6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index bb9072f5..18b48915 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -65,6 +65,7 @@ endif(D_VERSION EQUAL 1)
 file(MAKE_DIRECTORY
 	${PROJECT_BINARY_DIR}/bin
 	${PROJECT_BINARY_DIR}/${DMDFE_PATH}
+	${PROJECT_BINARY_DIR}/gen
 )
 
 # idgen and impcnvgen
diff --git a/revisions.pl.in b/revisions.pl.in
index cc13e1ab..f88a4dc2 100644
--- a/revisions.pl.in
+++ b/revisions.pl.in
@@ -11,9 +11,9 @@ my $llvm_rev = `svnversion --committed $llvm_src`;
 my $llvm_rev_str;
 my $llvm_rev_nr;
 
-if ($llvm_rev =~ /^\s*(\d+:)?(?<str>(?<nr>\d+)[MSP]*)\s*$/) {
-	$llvm_rev_str = qq!#define LLVM_REV_STR "LLVM rev. $+{str}"!;
-	$llvm_rev_nr = "$+{nr}";
+if ($llvm_rev =~ /^\s*(\d+:)?((\d+)[MSP]*)\s*$/) {
+	$llvm_rev_str = qq!#define LLVM_REV_STR "LLVM rev. $2"!;
+	$llvm_rev_nr = "$3";
 } else {
 	my $llvm_lib = `perl @LLVM_CONFIG@ --libdir`;
 	$llvm_lib =~ s/\s+$//;