/usr/share/dolfin/cmake/FindPETSc.cmake is in libdolfin-dev 2017.2.0.post0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 | # - Try to find PETSc
# Once done this will define
#
# PETSC_FOUND - system has PETSc
# PETSC_INCLUDE_DIRS - include directories for PETSc
# PETSC_LIBRARY_DIRS - library directories for PETSc
# PETSC_LIBRARIES - libraries for PETSc
# PETSC_STATIC_LIBRARIES - libraries for PETSc (static linking, undefined if not required)
# PETSC_VERSION - version for PETSc
# PETSC_VERSION_MAJOR - First number in PETSC_VERSION
# PETSC_VERSION_MINOR - Second number in PETSC_VERSION
# PETSC_VERSION_SUBMINOR - Third number in PETSC_VERSION
# PETSC_INT_SIZE - sizeof(PetscInt)
#
#=============================================================================
# Copyright (C) 2010-2016 Garth N. Wells, Anders Logg and Johannes Ring
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#=============================================================================
# Outline:
# 1. Get flags from PETSc-generated pkg-config file
# 2. Test compile and run program using shared library linking
# 3. If shared library linking fails, test with static library linking
# Load pkg-config module (provided by CMake)
find_package(PkgConfig REQUIRED)
# Find PETSc pkg-config file. Note: craypetsc_real is on Cray systems
set(ENV{PKG_CONFIG_PATH} "$ENV{CRAY_PETSC_PREFIX_DIR}/lib/pkgconfig:$ENV{PETSC_DIR}/$ENV{PETSC_ARCH}/lib/pkgconfig:$ENV{PETSC_DIR}/lib/pkgconfig:$ENV{PKG_CONFIG_PATH}")
pkg_search_module(PETSC craypetsc_real PETSc)
# Extract major, minor, etc from version string
if (PETSC_VERSION)
string(REPLACE "." ";" VERSION_LIST ${PETSC_VERSION})
list(GET VERSION_LIST 0 PETSC_VERSION_MAJOR)
list(GET VERSION_LIST 1 PETSC_VERSION_MINOR)
list(GET VERSION_LIST 2 PETSC_VERSION_SUBMINOR)
endif()
# Configure PETSc IMPORT (this involves creating an 'imported' target
# and attaching 'properties')
if (PETSC_FOUND AND NOT TARGET PETSC::petsc)
add_library(PETSC::petsc INTERFACE IMPORTED)
# Add include paths
set_property(TARGET PETSC::petsc PROPERTY
INTERFACE_INCLUDE_DIRECTORIES ${PETSC_INCLUDE_DIRS})
# Add libraries
unset(_libs)
foreach (lib ${PETSC_LIBRARIES})
find_library(LIB_${lib} NAMES ${lib} PATHS ${PETSC_LIBRARY_DIRS} NO_DEFAULT_PATH)
list(APPEND _libs ${LIB_${lib}})
endforeach()
set_property(TARGET PETSC::petsc PROPERTY INTERFACE_LINK_LIBRARIES "${_libs}")
endif()
# Configure PETSc 'static' IMPORT (this involves creating an
# 'imported' target and attaching 'properties')
if (PETSC_FOUND AND NOT TARGET PETSC::petsc_static)
add_library(PETSC::petsc_static INTERFACE IMPORTED)
# Add libraries (static)
unset(_libs)
foreach (lib ${PETSC_STATIC_LIBRARIES})
find_library(LIB_${lib} ${lib} HINTS ${PETSC_STATIC_LIBRARY_DIRS})
list(APPEND _libs ${LIB_${lib}})
endforeach()
set_property(TARGET PETSC::petsc_static PROPERTY INTERFACE_LINK_LIBRARIES "${_libs}")
endif()
# Attempt to build and run PETSc test program
if (DOLFIN_SKIP_BUILD_TESTS)
# Assume PETSc works
set(PETSC_TEST_RUNS TRUE)
elseif (PETSC_FOUND)
# Create PETSc test program
set(PETSC_TEST_LIB_CPP
"${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/petsc_test_lib.cpp")
file(WRITE ${PETSC_TEST_LIB_CPP} "
#include \"petscts.h\"
#include \"petsc.h\"
int main()
{
PetscErrorCode ierr;
TS ts;
int argc = 0;
char** argv = NULL;
ierr = PetscInitialize(&argc, &argv, PETSC_NULL, PETSC_NULL);CHKERRQ(ierr);
ierr = TSCreate(PETSC_COMM_WORLD,&ts);CHKERRQ(ierr);
ierr = TSSetFromOptions(ts);CHKERRQ(ierr);
ierr = TSDestroy(&ts);CHKERRQ(ierr);
ierr = PetscFinalize();CHKERRQ(ierr);
return 0;
}
")
# Add MPI variables if MPI has been found
if (MPI_C_FOUND)
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${MPI_C_INCLUDE_PATH})
set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${MPI_C_LIBRARIES})
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${MPI_C_COMPILE_FLAGS}")
endif()
# Try to run test program (shared linking)
try_run(
PETSC_TEST_LIB_EXITCODE
PETSC_TEST_LIB_COMPILED
${CMAKE_CURRENT_BINARY_DIR}
${PETSC_TEST_LIB_CPP}
CMAKE_FLAGS
"-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}"
"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}"
LINK_LIBRARIES PETSC::petsc;${CMAKE_REQUIRED_LIBRARIES}
COMPILE_OUTPUT_VARIABLE PETSC_TEST_LIB_COMPILE_OUTPUT
RUN_OUTPUT_VARIABLE PETSC_TEST_LIB_OUTPUT)
# Check program output
if (PETSC_TEST_LIB_COMPILED AND PETSC_TEST_LIB_EXITCODE EQUAL 0)
message(STATUS "Test PETSC_TEST_RUNS with shared library linking - Success")
set(PETSC_TEST_RUNS TRUE)
# Static libraries not required, so unset
set_property(TARGET PETSC::petsc_static PROPERTY INTERFACE_LINK_LIBRARIES)
else()
message(STATUS "Test PETSC_TEST_RUNS with shared library linking - Failed")
# Add MPI variables if MPI has been found
if (MPI_C_FOUND)
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${MPI_C_INCLUDE_PATH})
set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${MPI_C_LIBRARIES})
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${MPI_C_COMPILE_FLAGS}")
endif()
# Try to run test program (static linking)
try_run(
PETSC_TEST_LIB_EXITCODE
PETSC_TEST_LIB_COMPILED
${CMAKE_CURRENT_BINARY_DIR}
${PETSC_TEST_LIB_CPP}
CMAKE_FLAGS
"-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}"
"-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES}"
LINK_LIBRARIES PETSC::petsc PETSC::petsc_static
COMPILE_OUTPUT_VARIABLE PETSC_TEST_LIB_COMPILE_OUTPUT
RUN_OUTPUT_VARIABLE PETSC_TEST_LIB_OUTPUT)
if (PETSC_TEST_LIB_COMPILED AND PETSC_TEST_LIB_EXITCODE EQUAL 0)
message(STATUS "Test PETSC_TEST_RUNS static linking - Success")
set(PETSC_TEST_RUNS TRUE)
else()
message(STATUS "Test PETSC_TEST_RUNS static linking - Failed")
set(PETSC_TEST_RUNS FALSE)
endif()
endif()
endif()
# Check sizeof(PetscInt)
if (PETSC_INCLUDE_DIRS)
include(CheckTypeSize)
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${PETSC_INCLUDE_DIRS})
set(CMAKE_EXTRA_INCLUDE_FILES petscsys.h)
check_type_size("PetscInt" PETSC_INT_SIZE)
unset(CMAKE_EXTRA_INCLUDE_FILES)
unset(CMAKE_REQUIRED_INCLUDES)
endif()
# Standard package handling
include(FindPackageHandleStandardArgs)
if (PETSC_FOUND)
find_package_handle_standard_args(PETSc
REQUIRED_VARS PETSC_FOUND PETSC_TEST_RUNS VERSION_VAR PETSC_VERSION
FAIL_MESSAGE "PETSc could not be configured.")
else()
find_package_handle_standard_args(PETSc
REQUIRED_VARS PETSC_FOUND
FAIL_MESSAGE "PETSc could not be found. Be sure to set PETSC_DIR.")
endif()
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