From 694fc0c98a832ca553f75f396ce58efd6fce2171 Mon Sep 17 00:00:00 2001
From: Andreas Lauser <and@poware.org>
Date: Fri, 9 Aug 2013 17:44:38 +0200
Subject: [PATCH] add and use CMake modules for valgrind client requests and
 quadruple precision math

---
 cmake/Modules/FindQuadmath.cmake | 19 +++++++++++++++++++
 cmake/Modules/FindValgrind.cmake | 25 +++++++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 cmake/Modules/FindQuadmath.cmake
 create mode 100644 cmake/Modules/FindValgrind.cmake

diff --git a/cmake/Modules/FindQuadmath.cmake b/cmake/Modules/FindQuadmath.cmake
new file mode 100644
index 000000000..63f181283
--- /dev/null
+++ b/cmake/Modules/FindQuadmath.cmake
@@ -0,0 +1,19 @@
+# Module that checks whether the compiler supports the
+# quadruple precision floating point math
+#
+# Sets the following variable:
+# HAVE_QUAD
+#
+# perform tests
+include(CheckCXXSourceCompiles)
+include(CMakePushCheckState)
+
+cmake_push_check_state()
+list(APPEND CMAKE_REQUIRED_LIBRARIES "quadmath")
+CHECK_C_SOURCE_COMPILES("
+#include <quadmath.h>
+
+int main(void){
+    __float128 foo = sqrtq(123.456);
+}" HAVE_QUAD)
+cmake_pop_check_state()
diff --git a/cmake/Modules/FindValgrind.cmake b/cmake/Modules/FindValgrind.cmake
new file mode 100644
index 000000000..ae261507a
--- /dev/null
+++ b/cmake/Modules/FindValgrind.cmake
@@ -0,0 +1,25 @@
+# Find Valgrind.
+#
+# This module defines:
+#  VALGRIND_INCLUDE_DIR, where to find valgrind/memcheck.h, etc.
+#  VALGRIND_PROGRAM, the valgrind executable.
+#  VALGRIND_FOUND, If false, do not try to use valgrind.
+#
+# If you have valgrind installed in a non-standard place, you can define
+# VALGRIND_ROOT to tell cmake where it is.
+if (VALGRIND_FOUND)
+  return()
+endif()
+
+find_path(VALGRIND_INCLUDE_DIR valgrind/memcheck.h
+  /usr/include /usr/local/include ${VALGRIND_ROOT}/include)
+
+# if VALGRIND_ROOT is empty, we explicitly add /bin to the search
+# path, but this does not hurt...
+find_program(VALGRIND_PROGRAM NAMES valgrind PATH ${VALGRIND_ROOT}/bin)
+
+find_package_handle_standard_args(VALGRIND DEFAULT_MSG
+  VALGRIND_INCLUDE_DIR
+  VALGRIND_PROGRAM)
+
+mark_as_advanced(VALGRIND_ROOT VALGRIND_INCLUDE_DIR VALGRIND_PROGRAM)