added a Modules cmake dir, only use for find_package, reference cmake include paths explicitly.

(bzr r10358)

1 files changed, 89 insertions, 0 deletions

diff --git a/CMakeScripts/Modules/FindGSL.cmake b/CMakeScripts/Modules/FindGSL.cmake
new file mode 100644
index 000000000..1ef4643ad
--- /dev/null
+++ b/CMakeScripts/Modules/FindGSL.cmake
@@ -0,0 +1,89 @@
+# - Try to find GSL
+# Once done this will define
+#
+#  GSL_FOUND - system has GSL
+#  GSL_INCLUDE_DIRS - the GSL include directory
+#  GSL_LIBRARIES - Link these to use GSL
+#  GSL_DEFINITIONS - Compiler switches required for using GSL
+#
+#  Copyright (c) 2008 Joshua L. Blocher <verbalshadow@gmail.com>
+#
+#  Redistribution and use is allowed according to the terms of the New
+#  BSD license.
+#  For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+#
+
+
+if (GSL_LIBRARIES AND GSL_INCLUDE_DIRS)
+  # in cache already
+  set(GSL_FOUND TRUE)
+else (GSL_LIBRARIES AND GSL_INCLUDE_DIRS)
+  # use pkg-config to get the directories and then use these values
+  # in the FIND_PATH() and FIND_LIBRARY() calls
+  if (${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 4)
+    include(UsePkgConfig)
+    pkgconfig(gsl _GSL_INCLUDEDIR _GSL_LIBDIR _GSL_LDFLAGS _GSL_CFLAGS)
+  else (${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 4)
+    find_package(PkgConfig)
+    if (PKG_CONFIG_FOUND)
+      pkg_check_modules(_GSL gsl)
+    endif (PKG_CONFIG_FOUND)
+  endif (${CMAKE_MAJOR_VERSION} EQUAL 2 AND ${CMAKE_MINOR_VERSION} EQUAL 4)
+  find_path(GSL_INCLUDE_DIR
+    NAMES
+      gsl_blas.h
+    PATHS
+      ${_GSL_INCLUDEDIR}
+      /usr/include
+      /usr/local/include
+      /opt/local/include
+      /sw/include
+    PATH_SUFFIXES
+      gsl
+  )
+
+  find_library(GSL_LIBRARY
+    NAMES
+      gsl
+    PATHS
+      ${_GSL_LIBDIR}
+      /usr/lib
+      /usr/local/lib
+      /opt/local/lib
+      /sw/lib
+  )
+
+  if (GSL_LIBRARY)
+    set(GSL_FOUND TRUE)
+  endif (GSL_LIBRARY)
+
+  set(GSL_INCLUDE_DIRS
+    ${GSL_INCLUDE_DIR}
+  )
+
+  if (GSL_FOUND)
+    set(GSL_LIBRARIES
+      ${GSL_LIBRARIES}
+      ${GSL_LIBRARY}
+    )
+  endif (GSL_FOUND)
+
+  if (GSL_INCLUDE_DIRS AND GSL_LIBRARIES)
+     set(GSL_FOUND TRUE)
+  endif (GSL_INCLUDE_DIRS AND GSL_LIBRARIES)
+
+  if (GSL_FOUND)
+    if (NOT GSL_FIND_QUIETLY)
+      message(STATUS "Found GSL: ${GSL_LIBRARIES}")
+    endif (NOT GSL_FIND_QUIETLY)
+  else (GSL_FOUND)
+    if (GSL_FIND_REQUIRED)
+      message(FATAL_ERROR "Could not find GSL")
+    endif (GSL_FIND_REQUIRED)
+  endif (GSL_FOUND)
+
+  # show the GSL_INCLUDE_DIRS and GSL_LIBRARIES variables only in the advanced view
+  mark_as_advanced(GSL_INCLUDE_DIRS GSL_LIBRARIES)
+
+endif (GSL_LIBRARIES AND GSL_INCLUDE_DIRS)
+