/usr/share/dune/cmake/modules/Headercheck.cmake is in libdune-common-dev 2.5.1-1.
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 | # .. cmake_variable:: ENABLE_HEADERCHECK
#
# Set this variable to TRUE if you want to use the CMake
# reimplementation of the old autotools feaure :code:`make headercheck`.
# There has been a couple of issues with this implementation in
# the past, so it was deactivated by default.
#
# sets up a global property with the names of all header files
# in the module and a global target depending on all checks
macro(setup_headercheck)
#glob for headers
file(GLOB_RECURSE all_headers "*.hh")
# strip hidden files
string(REGEX REPLACE "[^;]*/\\.[^;]*\\.hh;?" "" headers "${all_headers}")
set_property(GLOBAL PROPERTY headercheck_list ${headers})
#define headercheck target
dune_module_path(MODULE dune-common RESULT scriptdir SCRIPT_DIR)
add_custom_target(headercheck ${CMAKE_COMMAND} -P ${scriptdir}/FinalizeHeadercheck.cmake -DENABLE_HEADERCHECK=${ENABLE_HEADERCHECK}
WORKING_DIRECTORY ${CMAKE_BINARY_DIR})
endmacro(setup_headercheck)
# these macros are used to exclude headers from make headercheck
# call this from a CMakeLists.txt file with a list of headers in that directory
macro(exclude_from_headercheck)
#make this robust to argument being passed with or without ""
string(REGEX REPLACE "[\ \n]+([^\ ])" ";\\1" list ${ARGV0})
set(list "${list};${ARGV}")
get_property(headerlist GLOBAL PROPERTY headercheck_list)
foreach(item ${list})
list(REMOVE_ITEM headerlist "${CMAKE_CURRENT_SOURCE_DIR}/${item}")
endforeach()
set_property(GLOBAL PROPERTY headercheck_list ${headerlist})
endmacro(exclude_from_headercheck)
macro(exclude_dir_from_headercheck)
file(GLOB list RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*.hh")
exclude_from_headercheck(${list})
endmacro(exclude_dir_from_headercheck)
macro(exclude_all_but_from_headercheck)
file(GLOB excllist RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} "*.hh")
#make this robust to argument being passed with or without ""
string(REGEX REPLACE "[\ \n]+([^\ \n])" ";\\1" list ${ARGV0})
set(list "${list};${ARGV}")
foreach(item ${list})
list(REMOVE_ITEM excllist ${item})
endforeach()
exclude_from_headercheck(${excllist})
endmacro(exclude_all_but_from_headercheck)
# configure all headerchecks
macro(finalize_headercheck)
if(ENABLE_HEADERCHECK)
get_property(headerlist GLOBAL PROPERTY headercheck_list)
foreach(header ${headerlist})
#do some name conversion
string(REGEX REPLACE ".*/([^/]*)" "\\1" simple ${header})
string(REPLACE ${PROJECT_SOURCE_DIR} "" rel ${header})
string(REGEX REPLACE "(.*)/[^/]*" "\\1" relpath ${rel})
string(REGEX REPLACE "/" "_" targname ${rel})
#generate the headercheck .cc file
file(WRITE ${CMAKE_BINARY_DIR}/headercheck/${rel}.cc "#ifdef HAVE_CONFIG_H\n#include<config.h>\n#endif\n#include<${simple}>\n#include<${simple}>\nint main(){return 0;}")
# add target for the check of current header, this is implemented as a library
# to prevent CMake from automatically trying to link the target, functionality
# of macro try_compile() is unfortunately not availbale due to it not being scriptable.
add_library(headercheck_${targname} STATIC EXCLUDE_FROM_ALL
${CMAKE_BINARY_DIR}/headercheck/${rel}.cc)
add_dependencies(headercheck headercheck_${targname})
#add PKG_ALL_FLAGS and the directory where the header is located
set_property(TARGET headercheck_${targname}
APPEND_STRING PROPERTY COMPILE_FLAGS "-DHEADERCHECK -I${PROJECT_SOURCE_DIR}${relpath} -I${CMAKE_BINARY_DIR}")
set_property(TARGET headercheck_${targname} PROPERTY ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/headercheck/${relpath}")
add_dune_all_flags(headercheck_${targname})
unset(headercheck_${targname}_LIB_DEPENDS CACHE)
endforeach(header ${headerlist})
endif()
endmacro(finalize_headercheck)
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