ceph/cmake/modules/Findfuse.cmake
Casey Bodley 7c00bf05db cmake: update FUSE_INCLUDE_DIRS to match autoconf
client/fuse_ll.cc is now including <fuse.h> and <fuse_lowlevel.h>
instead of <fuse/fuse.h> and <fuse/fuse_lowlevel.h>, so we need to add
the fuse directory to the FUSE_INCLUDE_DIRS variable

using find_path() with just fuse.h was finding a /usr/include/fuse.h
instead of the one in /usr/include/fuse/. looking for fuse_common.h and
fuse_lowlevel.h first causes it to generate the correct
FUSE_INCLUDE_DIRS=/usr/include/fuse

Fixes: 

Signed-off-by: Casey Bodley <cbodley@redhat.com>
2015-09-01 14:11:03 -04:00

168 lines
5.2 KiB
CMake

# This module can find FUSE Library
#
# Requirements:
# - CMake >= 2.8.3
#
# The following variables will be defined for your use:
# - FUSE_FOUND : was FUSE found?
# - FUSE_INCLUDE_DIRS : FUSE include directory
# - FUSE_LIBRARIES : FUSE library
# - FUSE_DEFINITIONS : FUSE cflags
# - FUSE_VERSION : complete version of FUSE (major.minor)
# - FUSE_MAJOR_VERSION : major version of FUSE
# - FUSE_MINOR_VERSION : minor version of FUSE
#
# Example Usage:
#
# 1. Copy this file in the root of your project source directory
# 2. Then, tell CMake to search this non-standard module in your project directory by adding to your CMakeLists.txt:
# set(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR})
# 3. Finally call find_package() once, here are some examples to pick from
#
# Require FUSE 2.6 or later
# find_package(FUSE 2.6 REQUIRED)
#
# if(FUSE_FOUND)
# add_definitions(${FUSE_DEFINITIONS})
# include_directories(${FUSE_INCLUDE_DIRS})
# add_executable(myapp myapp.c)
# target_link_libraries(myapp ${FUSE_LIBRARIES})
# endif()
#=============================================================================
# Copyright (c) 2012, julp
#
# Distributed under the OSI-approved BSD License
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#=============================================================================
cmake_minimum_required(VERSION 2.8.3)
########## Private ##########
function(fusedebug _varname)
if(FUSE_DEBUG)
message("${_varname} = ${${_varname}}")
endif(FUSE_DEBUG)
endfunction(fusedebug)
########## Public ##########
set(FUSE_FOUND TRUE)
set(FUSE_LIBRARIES )
set(FUSE_DEFINITIONS )
set(FUSE_INCLUDE_DIRS )
find_package(PkgConfig)
set(PC_FUSE_INCLUDE_DIRS )
set(PC_FUSE_LIBRARY_DIRS )
if(PKG_CONFIG_FOUND)
pkg_check_modules(PC_FUSE "fuse" QUIET)
if(PC_FUSE_FOUND)
# fusedebug(PC_FUSE_LIBRARIES)
# fusedebug(PC_FUSE_LIBRARY_DIRS)
# fusedebug(PC_FUSE_LDFLAGS)
# fusedebug(PC_FUSE_LDFLAGS_OTHER)
# fusedebug(PC_FUSE_INCLUDE_DIRS)
# fusedebug(PC_FUSE_CFLAGS)
# fusedebug(PC_FUSE_CFLAGS_OTHER)
set(FUSE_DEFINITIONS "${PC_FUSE_CFLAGS_OTHER}")
endif(PC_FUSE_FOUND)
endif(PKG_CONFIG_FOUND)
find_path(
FUSE_INCLUDE_DIRS
NAMES fuse_common.h fuse_lowlevel.h fuse.h
PATHS "${PC_FUSE_INCLUDE_DIRS}"
DOC "Include directories for FUSE"
)
if(NOT FUSE_INCLUDE_DIRS)
set(FUSE_FOUND FALSE)
endif(NOT FUSE_INCLUDE_DIRS)
find_library(
FUSE_LIBRARIES
NAMES "fuse"
PATHS "${PC_FUSE_LIBRARY_DIRS}"
DOC "Libraries for FUSE"
)
if(NOT FUSE_LIBRARIES)
set(FUSE_FOUND FALSE)
endif(NOT FUSE_LIBRARIES)
if(FUSE_FOUND)
if(EXISTS "${FUSE_INCLUDE_DIRS}/fuse_common.h")
file(READ "${FUSE_INCLUDE_DIRS}/fuse_common.h" _contents)
string(REGEX REPLACE ".*# *define *FUSE_MAJOR_VERSION *([0-9]+).*" "\\1" FUSE_MAJOR_VERSION "${_contents}")
string(REGEX REPLACE ".*# *define *FUSE_MINOR_VERSION *([0-9]+).*" "\\1" FUSE_MINOR_VERSION "${_contents}")
set(FUSE_VERSION "${FUSE_MAJOR_VERSION}.${FUSE_MINOR_VERSION}")
endif()
include(CheckCSourceCompiles)
# Backup CMAKE_REQUIRED_*
set(OLD_CMAKE_REQUIRED_INCLUDES "${CMAKE_REQUIRED_INCLUDES}")
set(OLD_CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}")
set(OLD_CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}")
# Add FUSE compilation flags
set(CMAKE_REQUIRED_INCLUDES "${CMAKE_REQUIRED_INCLUDES}" "${FUSE_INCLUDE_DIRS}")
set(CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES}" "${FUSE_LIBRARIES}")
set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS}" "${FUSE_DEFINITIONS}")
check_c_source_compiles("#include <stdlib.h>
#include <fuse.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
int main(void) {
return 0;
}" FUSE_CFLAGS_CHECK)
if(NOT FUSE_CFLAGS_CHECK)
set(FUSE_DEFINITIONS "-D_FILE_OFFSET_BITS=64")
# Should we run again previous test to assume the failure was due to missing definition -D_FILE_OFFSET_BITS=64?
endif(NOT FUSE_CFLAGS_CHECK)
# Restore CMAKE_REQUIRED_*
set(CMAKE_REQUIRED_INCLUDES "${OLD_CMAKE_REQUIRED_INCLUDES}")
set(CMAKE_REQUIRED_LIBRARIES "${OLD_CMAKE_REQUIRED_LIBRARIES}")
set(CMAKE_REQUIRED_DEFINITIONS "${OLD_CMAKE_REQUIRED_DEFINITIONS}")
endif(FUSE_FOUND)
if(FUSE_INCLUDE_DIRS)
include(FindPackageHandleStandardArgs)
if(FUSE_FIND_REQUIRED AND NOT FUSE_FIND_QUIETLY)
find_package_handle_standard_args(FUSE REQUIRED_VARS FUSE_LIBRARIES FUSE_INCLUDE_DIRS VERSION_VAR FUSE_VERSION)
else()
find_package_handle_standard_args(FUSE "FUSE not found" FUSE_LIBRARIES FUSE_INCLUDE_DIRS)
endif()
else(FUSE_INCLUDE_DIRS)
if(FUSE_FIND_REQUIRED AND NOT FUSE_FIND_QUIETLY)
message(FATAL_ERROR "Could not find FUSE include directory")
endif()
endif(FUSE_INCLUDE_DIRS)
mark_as_advanced(
FUSE_INCLUDE_DIRS
FUSE_LIBRARIES
)
# IN (args)
fusedebug("FUSE_FIND_COMPONENTS")
fusedebug("FUSE_FIND_REQUIRED")
fusedebug("FUSE_FIND_QUIETLY")
fusedebug("FUSE_FIND_VERSION")
# OUT
# Found
fusedebug("FUSE_FOUND")
# Definitions
fusedebug("FUSE_DEFINITIONS")
# Linking
fusedebug("FUSE_INCLUDE_DIRS")
fusedebug("FUSE_LIBRARIES")
# Version
fusedebug("FUSE_MAJOR_VERSION")
fusedebug("FUSE_MINOR_VERSION")
fusedebug("FUSE_VERSION")