+# Try to find gnu scientific library GSL
+# See
+# http://www.gnu.org/software/gsl/ and
+# http://gnuwin32.sourceforge.net/packages/gsl.htm
+#
+# Based on a script of Felix Woelk and Jan Woetzel
+# (www.mip.informatik.uni-kiel.de)
+#
+# It defines the following variables:
+# GSL_FOUND - system has GSL lib
+# GSL_INCLUDE_DIRS - where to find headers
+# GSL_LIBRARIES - full path to the libraries
+# GSL_LIBRARY_DIRS, the directory where the PLplot library is found.
+
+# CMAKE_GSL_CXX_FLAGS = Unix compiler flags for GSL, essentially "`gsl-config --cxxflags`"
+# GSL_LINK_DIRECTORIES = link directories, useful for rpath on Unix
+# GSL_EXE_LINKER_FLAGS = rpath on Unix
+
+set( GSL_FOUND OFF )
+set( GSL_CBLAS_FOUND OFF )
+
+# Windows, but not for Cygwin and MSys where gsl-config is available
+if( WIN32 AND NOT CYGWIN AND NOT MSYS )
+ # look for headers
+ find_path( GSL_INCLUDE_DIR
+ NAMES gsl/gsl_cdf.h gsl/gsl_randist.h
+ )
+ if( GSL_INCLUDE_DIR )
+ # look for gsl library
+ find_library( GSL_LIBRARY
+ NAMES gsl
+ )
+ if( GSL_LIBRARY )
+ set( GSL_INCLUDE_DIRS ${GSL_INCLUDE_DIR} )
+ get_filename_component( GSL_LIBRARY_DIRS ${GSL_LIBRARY} PATH )
+ set( GSL_FOUND ON )
+ endif( GSL_LIBRARY )
+
+ # look for gsl cblas library
+ find_library( GSL_CBLAS_LIBRARY
+ NAMES gslcblas
+ )
+ if( GSL_CBLAS_LIBRARY )
+ set( GSL_CBLAS_FOUND ON )
+ endif( GSL_CBLAS_LIBRARY )
+
+ set( GSL_LIBRARIES ${GSL_LIBRARY} ${GSL_CBLAS_LIBRARY} )
+ endif( GSL_INCLUDE_DIR )
+
+ mark_as_advanced(
+ GSL_INCLUDE_DIR
+ GSL_LIBRARY
+ GSL_CBLAS_LIBRARY
+ )
+else( WIN32 AND NOT CYGWIN AND NOT MSYS )
+ if( UNIX OR MSYS )
+ find_program( GSL_CONFIG_EXECUTABLE gsl-config
+ /usr/bin/
+ /usr/local/bin
+ )
+
+ if( GSL_CONFIG_EXECUTABLE )
+ set( GSL_FOUND ON )
+
+ # run the gsl-config program to get cxxflags
+ execute_process(
+ COMMAND sh "${GSL_CONFIG_EXECUTABLE}" --cflags
+ OUTPUT_VARIABLE GSL_CFLAGS
+ RESULT_VARIABLE RET
+ ERROR_QUIET
+ )
+ if( RET EQUAL 0 )
+ string( STRIP "${GSL_CFLAGS}" GSL_CFLAGS )
+ separate_arguments( GSL_CFLAGS )
+
+ # parse definitions from cflags; drop -D* from CFLAGS
+ string( REGEX MATCHALL "-D[^;]+"
+ GSL_DEFINITIONS "${GSL_CFLAGS}" )
+ string( REGEX REPLACE "-D[^;]+;" ""
+ GSL_CFLAGS "${GSL_CFLAGS}" )
+
+ # parse include dirs from cflags; drop -I prefix
+ string( REGEX MATCHALL "-I[^;]+"
+ GSL_INCLUDE_DIRS "${GSL_CFLAGS}" )
+ string( REPLACE "-I" ""
+ GSL_INCLUDE_DIRS "${GSL_INCLUDE_DIRS}")
+ string( REGEX REPLACE "-I[^;]+;" ""
+ GSL_CFLAGS "${GSL_CFLAGS}")
+
+ message("GSL_DEFINITIONS=${GSL_DEFINITIONS}")
+ message("GSL_INCLUDE_DIRS=${GSL_INCLUDE_DIRS}")
+ message("GSL_CFLAGS=${GSL_CFLAGS}")
+ else( RET EQUAL 0 )
+ set( GSL_FOUND FALSE )
+ endif( RET EQUAL 0 )
+
+ # run the gsl-config program to get the libs
+ execute_process(
+ COMMAND sh "${GSL_CONFIG_EXECUTABLE}" --libs
+ OUTPUT_VARIABLE GSL_LIBRARIES
+ RESULT_VARIABLE RET
+ ERROR_QUIET
+ )
+ if( RET EQUAL 0 )
+ string(STRIP "${GSL_LIBRARIES}" GSL_LIBRARIES )
+ separate_arguments( GSL_LIBRARIES )
+
+ # extract linkdirs (-L) for rpath (i.e., LINK_DIRECTORIES)
+ string( REGEX MATCHALL "-L[^;]+"
+ GSL_LIBRARY_DIRS "${GSL_LIBRARIES}" )
+ string( REPLACE "-L" ""
+ GSL_LIBRARY_DIRS "${GSL_LIBRARY_DIRS}" )
+ else( RET EQUAL 0 )
+ set( GSL_FOUND FALSE )
+ endif( RET EQUAL 0 )
+
+ MARK_AS_ADVANCED(
+ GSL_CFLAGS
+ )
+ message( STATUS "Using GSL from ${GSL_PREFIX}" )
+ else( GSL_CONFIG_EXECUTABLE )
+ message( STATUS "FindGSL: gsl-config not found.")
+ endif( GSL_CONFIG_EXECUTABLE )
+ endif( UNIX OR MSYS )
+endif( WIN32 AND NOT CYGWIN AND NOT MSYS )
+
+if( GSL_FOUND )
+ if( NOT GSL_FIND_QUIETLY )
+ message( STATUS "FindGSL: Found both GSL headers and library" )
+ endif( NOT GSL_FIND_QUIETLY )
+else( GSL_FOUND )
+ if( GSL_FIND_REQUIRED )
+ message( FATAL_ERROR "FindGSL: Could not find GSL headers or library" )
+ endif( GSL_FIND_REQUIRED )
+endif( GSL_FOUND )
projects / phys / heatbath.git / commitdiff