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# cmake/modules/ada.cmake
#
# Copyright (C) 2007 Alan W. Irwin
#
# This file is part of PLplot.
#
# PLplot is free software; you can redistribute it and/or modify
# it under the terms of the GNU Library General Public License as published
# by the Free Software Foundation; version 2 of the License.
#
# PLplot is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public License
# along with the file PLplot; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Module for determining Ada bindings configuration options
if(DEFAULT_NO_BINDINGS)
option(ENABLE_ada "Enable Ada bindings" OFF)
else(DEFAULT_NO_BINDINGS)
option(ENABLE_ada "Enable Ada bindings" ON)
endif(DEFAULT_NO_BINDINGS)
if(ENABLE_ada AND NOT PLPLOT_Ada_COMPILER_WORKS)
workaround_9220(Ada PLPLOT_Ada_COMPILER_WORKS)
if(NOT PLPLOT_Ada_COMPILER_WORKS)
message(STATUS "WARNING: no working Ada compiler so disabling Ada bindings and examples.")
set(ENABLE_ada OFF CACHE BOOL "Enable Ada bindings" FORCE)
endif(NOT PLPLOT_Ada_COMPILER_WORKS)
endif(ENABLE_ada AND NOT PLPLOT_Ada_COMPILER_WORKS)
if(ENABLE_ada)
# Find and check Ada compiler
enable_language(Ada OPTIONAL)
if(NOT CMAKE_Ada_COMPILER_WORKS)
message(STATUS "WARNING: no working Ada compiler so disabling Ada bindings and examples.")
set(ENABLE_ada OFF CACHE BOOL "Enable Ada bindings" FORCE)
endif(NOT CMAKE_Ada_COMPILER_WORKS)
endif(ENABLE_ada)
if(ENABLE_ada)
# Find the gnat version used in order to search for the right version of libgnat
execute_process(COMMAND ${CMAKE_Ada_COMPILER} --version OUTPUT_VARIABLE ADA_OUTPUT)
string(REGEX MATCH "gcc.* [(][^)]*[)] ([0-9]*[.][0-9]*)[.][0-9]" ADA_OUTPUT_TRIM ${ADA_OUTPUT})
set(GNATVERSION ${CMAKE_MATCH_1})
message(STATUS "gnat version = ${GNATVERSION}")
find_library(GNAT_LIB NAMES gnat gnat-${GNATVERSION})
if(NOT GNAT_LIB)
message(STATUS "WARNING: "
"gnat library not found. Disabling ada bindings")
set(ENABLE_ada OFF CACHE BOOL "Enable Ada bindings" FORCE)
else(NOT GNAT_LIB)
message(STATUS "FOUND gnat library ${GNAT_LIB}")
endif(NOT GNAT_LIB)
endif(ENABLE_ada)
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