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Merge branch 'backport-3.16-FindPkgConfig-isystem'

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This commit is contained in:
Brad King 2020-05-06 07:45:55 -04:00
commit dfaaae67a3
2 changed files with 62 additions and 8 deletions
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36
Modules/FindPkgConfig.cmake
View File

@ -364,6 +364,36 @@ macro(_pkg_restore_path_internal)
unset(_pkgconfig_path_old)
endmacro()
# pkg-config returns -isystem include directories in --cflags-only-other,
# depending on the version and if there is a space between -isystem and
# the actual path
function(_pkgconfig_extract_isystem _prefix)
set(cflags "${${_prefix}_CFLAGS_OTHER}")
set(outflags "")
set(incdirs "${${_prefix}_INCLUDE_DIRS}")
set(next_is_isystem FALSE)
foreach (THING IN LISTS cflags)
# This may filter "-isystem -isystem". That would not work anyway,
# so let it happen.
if (THING STREQUAL "-isystem")
set(next_is_isystem TRUE)
continue()
endif ()
if (next_is_isystem)
set(next_is_isystem FALSE)
list(APPEND incdirs "${THING}")
elseif (THING MATCHES "^-isystem")
string(SUBSTRING "${THING}" 8 -1 THING)
list(APPEND incdirs "${THING}")
else ()
list(APPEND outflags "${THING}")
endif ()
endforeach ()
set(${_prefix}_CFLAGS_OTHER "${outflags}" PARENT_SCOPE)
set(${_prefix}_INCLUDE_DIRS "${incdirs}" PARENT_SCOPE)
endfunction()
###
macro(_pkg_check_modules_internal _is_required _is_silent _no_cmake_path _no_cmake_environment_path _imp_target _imp_target_global _prefix)
_pkgconfig_unset(${_prefix}_FOUND)
@ -502,10 +532,14 @@ macro(_pkg_check_modules_internal _is_required _is_silent _no_cmake_path _no_cma
_pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" LDFLAGS "" --libs )
_pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" LDFLAGS_OTHER "" --libs-only-other )
_pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" INCLUDE_DIRS "(^| )-I" --cflags-only-I )
_pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" INCLUDE_DIRS "(^| )(-I|-isystem ?)" --cflags-only-I )
_pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" CFLAGS "" --cflags )
_pkgconfig_invoke_dyn("${_pkg_check_modules_packages}" "${_prefix}" CFLAGS_OTHER "" --cflags-only-other )
if (${_prefix}_CFLAGS_OTHER MATCHES "-isystem")
_pkgconfig_extract_isystem("${_prefix}")
endif ()
_pkg_recalculate("${_prefix}" ${_no_cmake_path} ${_no_cmake_environment_path} ${_imp_target} ${_imp_target_global})
endif()

22
Tests/RunCMake/FindPkgConfig/FindPkgConfig_IMPORTED_TARGET.cmake
View File

@ -99,6 +99,7 @@ file(WRITE ${fakePkgDir}/lib/pkgconfig/${pname}.pc
Description: Dummy package for FindPkgConfig IMPORTED_TARGET INTERFACE_LINK_OPTIONS test
Version: 1.2.3
Libs: -e dummy_main
Cflags: -I/special -isystem /other -isystem/more -DA-isystem/foo
")
set(expected_link_options -e dummy_main)
@ -109,7 +110,26 @@ endif()
get_target_property(link_options PkgConfig::FakeLinkOptionsPackage INTERFACE_LINK_OPTIONS)
if (NOT link_options STREQUAL expected_link_options)
message(FATAL_ERROR
"Additional link options not present in INTERFACE_LINK_OPTIONS property"
"Additional link options not present in INTERFACE_LINK_OPTIONS property\n"
"expected: \"${expected_link_options}\", but got \"${link_options}\""
)
endif()
get_target_property(inc_dirs PkgConfig::FakeLinkOptionsPackage INTERFACE_INCLUDE_DIRECTORIES)
set(expected_inc_dirs "/special" "/other" "/more")
if (NOT inc_dirs STREQUAL expected_inc_dirs)
message(FATAL_ERROR
"Additional include directories not correctly present in INTERFACE_INCLUDE_DIRECTORIES property\n"
"expected: \"${expected_inc_dirs}\", got \"${inc_dirs}\""
)
endif ()
get_target_property(c_opts PkgConfig::FakeLinkOptionsPackage INTERFACE_COMPILE_OPTIONS)
set(expected_c_opts "-DA-isystem/foo") # this is an invalid option, but a good testcase
if (NOT c_opts STREQUAL expected_c_opts)
message(FATAL_ERROR
"Additional compile options not present in INTERFACE_COMPILE_OPTIONS property\n"
"expected: \"${expected_c_opts}\", got \"${c_opts}\""
)
endif ()