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Fix CMakeLists.txt to reliably find GTK on Linux #6

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Fix CMakeLists.txt to reliably find GTK on Linux #6

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20 changes: 19 additions & 1 deletion CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,6 @@ elseif (APPLE)
REQUIRE_INCLUDE_FILE(AppKit/AppKit.h HAS_APPKIT)
list(APPEND SOURCES src/nfd_cocoa.m)
elseif (UNIX)
REQUIRE_INCLUDE_FILE(gtk/gtk.h HAS_GTK)
list(APPEND SOURCES src/nfd_gtk.c)
elseif (UNIX)
message(FATAL_ERROR "Cannot detect your system, please report to https://github.com/aarcangeli/nativefiledialog-cmake/issues")
Expand All @@ -25,3 +24,22 @@ endif ()
add_library(nativefiledialog ${SOURCES})

target_include_directories(nativefiledialog PUBLIC src/include)

if (UNIX AND NOT APPLE)
# GTK3 configuration adapted from https://gist.github.com/fracek/3323924

# Use the package PkgConfig to detect GTK+ headers/library files
find_package(PkgConfig REQUIRED)
pkg_check_modules(GTK3 REQUIRED gtk+-3.0)

# Setup CMake to use GTK+, tell the compiler where to look for headers
# and to the linker where to look for libraries
target_include_directories(nativefiledialog PRIVATE ${GTK3_INCLUDE_DIRS})
target_link_directories(nativefiledialog PRIVATE ${GTK3_LIBRARY_DIRS})

# Add other flags to the compiler
target_compile_options(nativefiledialog PRIVATE ${GTK3_CFLAGS_OTHER})

# Link the target to the GTK+ libraries
target_link_libraries(nativefiledialog PRIVATE ${GTK3_LIBRARIES})
endif()