From 8c75f6e8c25106002729eabc5c733c3aa8d42d4c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Mon, 1 Apr 2013 01:10:00 +0200
Subject: [PATCH] Expose MAGNUM_BUILD_STATIC in magnumConfigure.h.

---
 CMakeLists.txt               | 4 ++++
 doc/building.dox             | 7 +++++--
 doc/cmake.dox                | 2 ++
 modules/FindMagnum.cmake     | 6 +++++-
 src/Magnum.h                 | 9 +++++++++
 src/Platform/magnum-info.cpp | 6 ++++++
 src/magnumConfigure.h.cmake  | 1 +
 7 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index acef07eb3..9d6f55cd4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -65,6 +65,10 @@ set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/modules/")
 
 find_package(Corrade REQUIRED)
 
+if(BUILD_STATIC)
+    set(MAGNUM_BUILD_STATIC 1)
+endif()
+
 # If targeting NaCl, set explicit OpenGL ES 2.0 support
 if(CORRADE_TARGET_NACL)
     set(TARGET_GLES 1)
diff --git a/doc/building.dox b/doc/building.dox
index 8eee27b50..621984b12 100644
--- a/doc/building.dox
+++ b/doc/building.dox
@@ -74,8 +74,11 @@ optional features.
     make
     make install
 
-If you want to build with another compiler (e.g. Clang), pass
-`-DCMAKE_CXX_COMPILER=clang++` to CMake.
+The libraries are build as shared by default, pass `-DBUILD_STATIC=ON` to build
+them as static. If you plan them to use with shared libraries later, enable
+also position-independent code with `-DBUILD_STATIC_PIC=ON`. If you want to
+build with another compiler (e.g. Clang), pass `-DCMAKE_CXX_COMPILER=clang++`
+to CMake.
 
 @subsection building-optional Enabling or disabling features
 
diff --git a/doc/cmake.dox b/doc/cmake.dox
index 4cb3b1a86..ad07c3acd 100644
--- a/doc/cmake.dox
+++ b/doc/cmake.dox
@@ -95,6 +95,8 @@ convenience aliases `MAGNUM_APPLICATION_LIBRARIES` /
 Features of found %Magnum library are exposed in these CMake variables, they
 are also available as preprocessor variables if including Magnum.h:
 
+- `MAGNUM_BUILD_STATIC` -- Defined if built as static libraries. Default are
+  shared libraries.
 - `MAGNUM_TARGET_GLES` -- Defined if compiled for OpenGL ES
 - `MAGNUM_TARGET_GLES2` -- Defined if compiled for OpenGL ES 2.0
 - `MAGNUM_TARGET_GLES3` -- Defined if compiled for OpenGL ES 3.0
diff --git a/modules/FindMagnum.cmake b/modules/FindMagnum.cmake
index 27ade163b..59367f8ff 100644
--- a/modules/FindMagnum.cmake
+++ b/modules/FindMagnum.cmake
@@ -45,6 +45,7 @@
 # / MAGNUM_WINDOWLESSAPPLICATION_INCLUDE_DIRS to simplify porting.
 #
 # Features of found Magnum library are exposed in these variables:
+#  MAGNUM_BUILD_STATIC  - Defined if compiled as static libraries
 #  MAGNUM_TARGET_GLES   - Defined if compiled for OpenGL ES
 #  MAGNUM_TARGET_GLES2  - Defined if compiled for OpenGL ES 2.0
 #  MAGNUM_TARGET_GLES3  - Defined if compiled for OpenGL ES 3.0
@@ -111,7 +112,10 @@ find_path(MAGNUM_INCLUDE_DIR
 # Configuration
 file(READ ${MAGNUM_INCLUDE_DIR}/magnumConfigure.h _magnumConfigure)
 
-# Built for specific target?
+string(FIND "${_magnumConfigure}" "#define MAGNUM_BUILD_STATIC" _BUILD_STATIC)
+if(NOT _BUILD_STATIC EQUAL -1)
+    set(MAGNUM_BUILD_STATIC 1)
+endif()
 string(FIND "${_magnumConfigure}" "#define MAGNUM_TARGET_GLES" _TARGET_GLES)
 if(NOT _TARGET_GLES EQUAL -1)
     set(MAGNUM_TARGET_GLES 1)
diff --git a/src/Magnum.h b/src/Magnum.h
index 3540beea9..3be9bb7e0 100644
--- a/src/Magnum.h
+++ b/src/Magnum.h
@@ -69,6 +69,15 @@ using Corrade::Utility::Error;
 
 /** @todoc remove trailing underscores when Doxygen can handle `undef` */
 
+/**
+@brief Static library build
+
+`MAGNUM_BUILD_STATIC` is defined if build as static libraries. Default are
+shared libraries.
+@see @ref building-corrade
+*/
+#define MAGNUM_BUILD_STATIC_
+
 /**
 @brief OpenGL ES target
 
diff --git a/src/Platform/magnum-info.cpp b/src/Platform/magnum-info.cpp
index 9578c32dd..5dfa7bd7e 100644
--- a/src/Platform/magnum-info.cpp
+++ b/src/Platform/magnum-info.cpp
@@ -53,6 +53,12 @@ MagnumInfo::MagnumInfo(int& argc, char** argv): WindowlessGlxApplication(argc, a
         #ifdef CORRADE_GCC46_COMPATIBILITY
         d << "CORRADE_GCC46_COMPATIBILITY";
         #endif
+        #ifdef CORRADE_BUILD_STATIC
+        d << "CORRADE_BUILD_STATIC";
+        #endif
+        #ifdef MAGNUM_BUILD_STATIC
+        d << "MAGNUM_BUILD_STATIC";
+        #endif
         #ifdef CORRADE_TARGET_NACL
         d << "CORRADE_TARGET_NACL";
         #endif
diff --git a/src/magnumConfigure.h.cmake b/src/magnumConfigure.h.cmake
index db580c400..1cb5f49b5 100644
--- a/src/magnumConfigure.h.cmake
+++ b/src/magnumConfigure.h.cmake
@@ -22,6 +22,7 @@
     DEALINGS IN THE SOFTWARE.
 */
 
+#cmakedefine MAGNUM_BUILD_STATIC
 #cmakedefine MAGNUM_TARGET_GLES
 #cmakedefine MAGNUM_TARGET_GLES2
 #cmakedefine MAGNUM_TARGET_GLES3