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putty-source/cmake/gtk.cmake
Simon Tatham 0e630bc4f1 Fix pre-GTK3 build failures in puttyapp / ptermapp.
These alternate frontends using the GtkApplication class don't work
before GTK3, because the GtkApplication class didn't exist. In the old
mkfiles.pl system, the simplest way to prevent a build failure was to
just compile them anyway but make them reduce to a stub main(). But
now, with the new library-based code organisation, library search
order issues mean that these applications won't build at all.

Happily, with cmake, it's also easy to simply omit these binaries from
the build completely depending on our GTK version.
2021-12-18 11:43:57 +00:00

89 lines
2.7 KiB
CMake

# Look for GTK, of any version.
set(PUTTY_GTK_VERSION "ANY"
CACHE STRING "Which major version of GTK to build with")
set_property(CACHE PUTTY_GTK_VERSION
PROPERTY STRINGS ANY 3 2 1)
set(GTK_FOUND FALSE)
macro(try_pkg_config_gtk VER PACKAGENAME)
if(NOT GTK_FOUND AND
(PUTTY_GTK_VERSION STREQUAL ANY OR PUTTY_GTK_VERSION STREQUAL ${VER}))
find_package(PkgConfig)
pkg_check_modules(GTK ${PACKAGENAME})
if(GTK_FOUND)
set(GTK_VERSION ${VER})
endif()
endif()
endmacro()
try_pkg_config_gtk(3 gtk+-3.0)
try_pkg_config_gtk(2 gtk+-2.0)
if(NOT GTK_FOUND AND
(PUTTY_GTK_VERSION STREQUAL ANY OR PUTTY_GTK_VERSION STREQUAL 1))
message("-- Checking for GTK1 (via gtk-config)")
find_program(GTK_CONFIG gtk-config)
if(GTK_CONFIG)
execute_process(COMMAND ${GTK_CONFIG} --cflags
OUTPUT_VARIABLE gtk_config_cflags
OUTPUT_STRIP_TRAILING_WHITESPACE
RESULT_VARIABLE gtk_config_cflags_result)
execute_process(COMMAND ${GTK_CONFIG} --libs
OUTPUT_VARIABLE gtk_config_libs
OUTPUT_STRIP_TRAILING_WHITESPACE
RESULT_VARIABLE gtk_config_libs_result)
if(gtk_config_cflags_result EQUAL 0 AND gtk_config_libs_result EQUAL 0)
set(GTK_INCLUDE_DIRS)
set(GTK_LIBRARY_DIRS)
set(GTK_LIBRARIES)
separate_arguments(gtk_config_cflags NATIVE_COMMAND
${gtk_config_cflags})
foreach(opt ${gtk_config_cflags})
string(REGEX MATCH "^-I" ok ${opt})
if(ok)
string(REGEX REPLACE "^-I" "" optval ${opt})
list(APPEND GTK_INCLUDE_DIRS ${optval})
endif()
endforeach()
separate_arguments(gtk_config_libs NATIVE_COMMAND
${gtk_config_libs})
foreach(opt ${gtk_config_libs})
string(REGEX MATCH "^-l" ok ${opt})
if(ok)
list(APPEND GTK_LIBRARIES ${opt})
endif()
string(REGEX MATCH "^-L" ok ${opt})
if(ok)
string(REGEX REPLACE "^-L" "" optval ${opt})
list(APPEND GTK_LIBRARY_DIRS ${optval})
endif()
endforeach()
message("-- Found GTK1")
set(GTK_FOUND TRUE)
endif()
endif()
endif()
if(GTK_FOUND)
# Check for some particular Pango functions.
function(pango_check_subscope)
set(CMAKE_REQUIRED_INCLUDES ${GTK_INCLUDE_DIRS})
set(CMAKE_REQUIRED_LIBRARIES ${GTK_LIBRARIES})
check_symbol_exists(pango_font_family_is_monospace "pango/pango.h"
HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE)
check_symbol_exists(pango_font_map_list_families "pango/pango.h"
HAVE_PANGO_FONT_MAP_LIST_FAMILIES)
set(HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE
${HAVE_PANGO_FONT_FAMILY_IS_MONOSPACE} PARENT_SCOPE)
set(HAVE_PANGO_FONT_MAP_LIST_FAMILIES
${HAVE_PANGO_FONT_MAP_LIST_FAMILIES} PARENT_SCOPE)
endfunction()
pango_check_subscope()
endif()