From 181f7baa453c58d4070de7196fd74663110946a8 Mon Sep 17 00:00:00 2001
From: est31 <MTest31@outlook.com>
Date: Sun, 12 Apr 2015 06:18:48 +0200
Subject: Add LibGMP

Uses system provided libgmp if found, if not it falls back to mini-gmp.
---
 cmake/Modules/FindGMP.cmake | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 cmake/Modules/FindGMP.cmake

(limited to 'cmake')

diff --git a/cmake/Modules/FindGMP.cmake b/cmake/Modules/FindGMP.cmake
new file mode 100644
index 000000000..bb48289c5
--- /dev/null
+++ b/cmake/Modules/FindGMP.cmake
@@ -0,0 +1,28 @@
+
+option(ENABLE_SYSTEM_GMP "Use GMP from system" TRUE)
+mark_as_advanced(GMP_LIBRARY GMP_INCLUDE_DIR)
+set(USE_SYSTEM_GMP FALSE)
+
+if(ENABLE_SYSTEM_GMP)
+	find_library(GMP_LIBRARY NAMES libgmp.so)
+	find_path(GMP_INCLUDE_DIR NAMES gmp.h)
+
+	if(GMP_LIBRARY AND GMP_INCLUDE_DIR)
+		message (STATUS "Using GMP provided by system.")
+		set(USE_SYSTEM_GMP TRUE)
+	else()
+		message (STATUS "Detecting GMP from system failed.")
+	endif()
+else()
+	message (STATUS "Detecting GMP from system disabled! (ENABLE_SYSTEM_GMP=0)")
+endif()
+
+if(NOT USE_SYSTEM_GMP)
+	message(STATUS "Using bundled mini-gmp library.")
+	set(GMP_INCLUDE_DIR ${PROJECT_SOURCE_DIR}/gmp)
+	set(GMP_LIBRARY gmp)
+	add_subdirectory(gmp)
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(GMP DEFAULT_MSG GMP_LIBRARY GMP_INCLUDE_DIR)
-- 
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