CMake: Support building HarfBuzz-GObject

This adds support to the CMake build files to support building
HarfBuzz-GObject, which is actually a little bit complicated,
as we need to:

-Run glib-mkenums, which is a Python (for newer GLib/GObject) or PERL
 (for older, pre 2.53.4, GLib/GObject) script.  This matters more for
 Visual Studio builds as shebang lines are not supported, so we need to
 test-run it with PERL or Python to determine which is the correct
 interpretor to use.

-Next, we need to replace strings in the sources that we obtain from
 running glib-mkenums.  So, the solution here is to use a small utility
 CMake script for our purposes here, to maintain maximum compatibility.

-Ensure that things do work in the Visual Studio IDE builds.
This commit is contained in:
Chun-wei Fan 2017-10-18 15:43:57 +08:00
parent 162575f2c6
commit 53db221259
3 changed files with 150 additions and 0 deletions

View File

@ -49,6 +49,11 @@ if (HB_BUILD_UTILS)
set(HB_HAVE_FREETYPE ON)
endif ()
option(HB_HAVE_GOBJECT "Enable GObject Bindings" OFF)
if (HB_HAVE_GOBJECT)
set(HB_HAVE_GLIB ON)
endif ()
include_directories(AFTER
${PROJECT_SOURCE_DIR}/src
${PROJECT_BINARY_DIR}/src
@ -301,6 +306,107 @@ if (WIN32 AND HB_HAVE_DIRECTWRITE)
list(APPEND THIRD_PARTY_LIBS dwrite rpcrt4)
endif ()
if (HB_HAVE_GOBJECT)
include(FindPythonInterp)
include(FindPerl)
# Use the hints from glib-2.0.pc to find glib-mkenums
find_package(PkgConfig)
pkg_check_modules(PC_GLIB QUIET glib-2.0)
find_program(GLIB_MKENUMS glib-mkenums
HINTS ${PC_glib_mkenums}
)
set(GLIB_MKENUMS_CMD)
if (WIN32 AND NOT MINGW)
# In Visual Studio builds, shebang lines are not supported
# in the standard cmd.exe shell that we use, so we need to
# first determine whether glib-mkenums is a Python or PERL
# script
execute_process(COMMAND "${PYTHON_EXECUTABLE}" "${GLIB_MKENUMS}" --version
RESULT_VARIABLE GLIB_MKENUMS_PYTHON
OUTPUT_QUIET ERROR_QUIET
)
if (GLIB_MKENUMS_PYTHON EQUAL 0)
message("${GLIB_MKENUMS} is a Python script.")
set(GLIB_MKENUMS_CMD "${PYTHON_EXECUTABLE}" "${GLIB_MKENUMS}")
else ()
execute_process(COMMAND "${PERL_EXECUTABLE}" "${GLIB_MKENUMS}" --version
RESULT_VARIABLE GLIB_MKENUMS_PERL
OUTPUT_QUIET ERROR_QUIET
)
if (GLIB_MKENUMS_PERL EQUAL 0)
message("${GLIB_MKENUMS} is a PERL script.")
set(GLIB_MKENUMS_CMD "${PERL_EXECUTABLE}" "${GLIB_MKENUMS}")
endif ()
if (NOT GLIB_MKENUMS_PERL EQUAL 0 AND NOT GLIB_MKENUMS_PYTHON EQUAL 0)
message(FATAL_ERROR "Unable to determine type of glib-mkenums script")
endif ()
endif ()
else ()
set(GLIB_MKENUMS_CMD "${GLIB_MKENUMS}")
endif ()
if (NOT GLIB_MKENUMS_CMD)
message(FATAL_ERROR "HB_HAVE_GOBJECT was set, but we failed to find glib-mkenums, which is required")
endif()
pkg_check_modules(PC_GOBJECT QUIET gobject-2.0)
find_library(GOBJECT_LIBRARIES NAMES gobject-2.0 HINTS ${PC_GLIB_LIBDIR} ${PC_GLIB_LIBRARY_DIRS})
find_path(GOBJECT_INCLUDE_DIR NAMES glib-object.h HINTS ${PC_GLIB_INCLUDEDIR} ${PC_GLIB_INCLUDE_DIRS} PATH_SUFFIXES glib-2.0)
include_directories(${GOBJECTCONFIG_INCLUDE_DIR} ${GOBJECT_INCLUDE_DIR})
mark_as_advanced(GOBJECT_LIBRARIES GOBJECT_INCLUDE_DIR)
list(APPEND hb_gobject_sources ${PROJECT_SOURCE_DIR}/src/hb-gobject-structs.cc)
list(APPEND hb_gobject_gen_sources
${CMAKE_CURRENT_BINARY_DIR}/src/hb-gobject-enums.cc
)
list(APPEND hb_gobject_headers
${PROJECT_SOURCE_DIR}/src/hb-gobject.h
${PROJECT_SOURCE_DIR}/src/hb-gobject-structs.h
)
list(APPEND hb_gobject_gen_headers
${CMAKE_CURRENT_BINARY_DIR}/src/hb-gobject-enums.h
)
add_custom_command (
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/src/hb-gobject-enums.h
COMMAND ${GLIB_MKENUMS_CMD}
--template=${PROJECT_SOURCE_DIR}/src/hb-gobject-enums.h.tmpl
--identifier-prefix hb_
--symbol-prefix hb_gobject
${hb_gobject_header}
${project_headers}
> ${CMAKE_CURRENT_BINARY_DIR}/src/hb-gobject-enums.h.tmp
COMMAND "${CMAKE_COMMAND}"
"-DENUM_INPUT_SRC=${CMAKE_CURRENT_BINARY_DIR}/src/hb-gobject-enums.h.tmp"
"-DENUM_OUTPUT_SRC=${CMAKE_CURRENT_BINARY_DIR}/src/hb-gobject-enums.h"
-P ${PROJECT_SOURCE_DIR}/replace-enum-strings.cmake
DEPENDS ${PROJECT_SOURCE_DIR}/src/hb-gobject-enums.h.tmpl
${hb_gobject_header}
${project_headers}
)
add_custom_command (
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/src/hb-gobject-enums.cc
COMMAND ${GLIB_MKENUMS_CMD}
--template=${PROJECT_SOURCE_DIR}/src/hb-gobject-enums.cc.tmpl
--identifier-prefix hb_
--symbol-prefix hb_gobject
${hb_gobject_header}
${project_headers}
> ${CMAKE_CURRENT_BINARY_DIR}/src/hb-gobject-enums.cc.tmp
COMMAND "${CMAKE_COMMAND}"
"-DENUM_INPUT_SRC=${CMAKE_CURRENT_BINARY_DIR}/src/hb-gobject-enums.cc.tmp"
"-DENUM_OUTPUT_SRC=${CMAKE_CURRENT_BINARY_DIR}/src/hb-gobject-enums.cc"
-P ${PROJECT_SOURCE_DIR}/replace-enum-strings.cmake
DEPENDS ${PROJECT_SOURCE_DIR}/src/hb-gobject-enums.cc.tmpl
${CMAKE_CURRENT_BINARY_DIR}/src/hb-gobject-enums.h
${hb_gobject_header}
${project_headers}
)
endif ()
## Atomic ops availability detection
file(WRITE "${PROJECT_BINARY_DIR}/try_compile_intel_atomic_primitives.c"
@ -338,6 +444,18 @@ endif ()
add_library(harfbuzz ${project_sources} ${project_headers})
target_link_libraries(harfbuzz ${THIRD_PARTY_LIBS})
## Define harfbuzz-gobject library
if (HB_HAVE_GOBJECT)
add_library(harfbuzz-gobject
${hb_gobject_sources}
${hb_gobject_gen_sources}
${hb_gobject_headers}
${hb_gobject_gen_headers}
)
include_directories(BEFORE ${CMAKE_CURRENT_BINARY_DIR}/src)
add_dependencies(harfbuzz-gobject harfbuzz)
target_link_libraries(harfbuzz-gobject harfbuzz ${GOBJECT_LIBRARIES} ${THIRD_PARTY_LIBS})
endif ()
## Additional framework build configs
if (BUILD_FRAMEWORK)
@ -382,6 +500,9 @@ endif ()
## Install
if (NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL)
install(FILES ${project_headers} DESTINATION include/harfbuzz)
if (HB_HAVE_GOBJECT)
install(FILES ${hb_gobject_headers} ${hb_gobject_gen_headers} DESTINATION include/harfbuzz)
endif ()
endif ()
if (NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
@ -407,4 +528,11 @@ if (NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
RUNTIME DESTINATION bin
)
endif ()
if (HB_HAVE_GOBJECT)
install(TARGETS harfbuzz-gobject
ARCHIVE DESTINATION lib
LIBRARY DESTINATION lib
RUNTIME DESTINATION bin
)
endif ()
endif ()

View File

@ -13,6 +13,7 @@ EXTRA_DIST = \
BUILD.md \
RELEASING.md \
CMakeLists.txt \
replace-enum-strings.cmake \
$(NULL)
MAINTAINERCLEANFILES = \

View File

@ -0,0 +1,21 @@
# CMake script to replace items
# in sources generated by glib-mkenums
FILE(READ ${ENUM_INPUT_SRC} enum_in)
STRING(REPLACE
"_t_get_type"
"_get_type"
enum_out_tmp
"${enum_in}"
)
STRING(REPLACE
"_T ("
" ("
enum_out
"${enum_out_tmp}"
)
FILE(WRITE ${ENUM_OUTPUT_SRC} "${enum_out}")
FILE(REMOVE ${ENUM_INPUT_SRC})