Initial Linux build.

CMakeLists.txt

@@ -5,3 +5,4 @@
 # https://github.com/desktop-app/legal/blob/master/LEGAL
 
 add_subdirectory(external)
+add_subdirectory(linux_glibc_wraps)

external/CMakeLists.txt

@@ -6,6 +6,7 @@
 
 add_subdirectory(auto_updates)
 add_subdirectory(crash_reports)
+add_subdirectory(ffmpeg)
 add_subdirectory(gsl)
 add_subdirectory(iconv)
 add_subdirectory(lz4)

external/auto_updates/xz/CMakeLists.txt

@@ -12,9 +12,14 @@ if (APPLE AND NOT build_osx)
     INTERFACE
         /usr/local/macos/lib/liblzma.a
     )
-else()
+elseif (APPLE)
     target_link_libraries(external_xz
     INTERFACE
-        /usr/local/lib/liblzma.a
+        /usr/local/liblzma.a
+    )
+else()
+    target_link_static_libraries(external_xz
+    INTERFACE
+        lzma
     )
 endif()

external/crash_reports/breakpad/CMakeLists.txt

@@ -21,4 +21,9 @@ if (WIN32)
         ${breakpad_lib_loc}/windows/handler/exception_handler.lib
         ${breakpad_lib_loc}/windows/crash_generation/crash_generation_client.lib
     )
+elseif (LINUX)
+    target_link_static_libraries(external_breakpad
+    INTERFACE
+        breakpad_client
+    )
 endif()

external/ffmpeg/CMakeLists.txt

@@ -0,0 +1,38 @@
+# This file is part of Desktop App Toolkit,
+# a set of libraries for developing nice desktop applications.
+#
+# For license and copyright information please follow this link:
+# https://github.com/desktop-app/legal/blob/master/LEGAL
+
+add_library(external_ffmpeg INTERFACE IMPORTED GLOBAL)
+add_library(desktop-app::external_ffmpeg ALIAS external_ffmpeg)
+
+target_include_directories(external_ffmpeg SYSTEM
+INTERFACE
+    ${libs_loc}/ffmpeg
+)
+
+set(ffmpeg_lib_loc ${libs_loc}/ffmpeg)
+
+target_link_libraries(external_ffmpeg
+INTERFACE
+    ${ffmpeg_lib_loc}/libavformat/libavformat.a
+    ${ffmpeg_lib_loc}/libavcodec/libavcodec.a
+    ${ffmpeg_lib_loc}/libswresample/libswresample.a
+    ${ffmpeg_lib_loc}/libswscale/libswscale.a
+    ${ffmpeg_lib_loc}/libavutil/libavutil.a
+)
+if (LINUX)
+    target_link_static_libraries(external_ffmpeg
+    INTERFACE
+        va-x11
+        va-drm
+        va
+        vdpau
+        drm
+        Xi
+        Xext
+        Xfixes
+        Xrender
+    )
+endif()

external/iconv/CMakeLists.txt

@@ -7,14 +7,14 @@
 add_library(external_iconv INTERFACE IMPORTED GLOBAL)
 add_library(desktop-app::external_iconv ALIAS external_iconv)
 
-if (build_osx)
+if (APPLE AND NOT build_osx)
     target_link_libraries(external_iconv
     INTERFACE
-        /usr/local/lib/libiconv.a
+        /usr/local/macos/lib/libiconv.a
     )
-else()
+elseif (APPLE)
     target_link_libraries(external_iconv
     INTERFACE
-        /usr/local/macos/lib/libiconv.a
+        /usr/local/lib/libiconv.a
     )
 endif()

external/openal/CMakeLists.txt

@@ -16,7 +16,7 @@ if (WIN32)
     INTERFACE
         ${libs_loc}/openal-soft/build/$<IF:$<CONFIG:Debug>,Debug,Release>/OpenAL32.lib
     )
-else()
+elseif(APPLE AND NOT build_osx)
     target_include_directories(external_openal SYSTEM
     INTERFACE
         /usr/local/macos/include
@@ -25,6 +25,15 @@ else()
     INTERFACE
         /usr/local/macos/lib/libopenal.a
     )
+else()
+    target_include_directories(external_openal SYSTEM
+    INTERFACE
+        /usr/local/include
+    )
+    target_link_static_libraries(external_openal
+    INTERFACE
+        openal
+    )
 endif()
 
 target_compile_definitions(external_openal

external/openssl/CMakeLists.txt

@@ -7,7 +7,12 @@
 add_library(external_openssl INTERFACE IMPORTED GLOBAL)
 add_library(desktop-app::external_openssl ALIAS external_openssl)
 
-if (NOT APPLE OR NOT build_osx)
+if (LINUX)
+    target_include_directories(external_openssl SYSTEM
+    INTERFACE
+        /usr/local/desktop-app/openssl-1.1.1/include
+    )
+elseif (NOT APPLE OR NOT build_osx)
     target_include_directories(external_openssl SYSTEM
     INTERFACE
         ${libs_loc}/openssl_1_1_1/include
@@ -30,11 +35,21 @@ else()
         else()
             set(openssl_lib_loc ${libs_loc}/openssl)
         endif()
+    else()
+        set(openssl_lib_loc /usr/local/desktop-app/openssl-1.1.1/lib)
     endif()
 endif()
 
 target_link_libraries(external_openssl
 INTERFACE
-    ${openssl_lib_loc}/libcrypto.${openssl_lib_ext}
     ${openssl_lib_loc}/libssl.${openssl_lib_ext}
+    ${openssl_lib_loc}/libcrypto.${openssl_lib_ext}
+    pthread
 )
+
+if (LINUX)
+    target_link_libraries(external_openssl
+    INTERFACE
+        desktop-app::linux_glibc_wraps
+    )
+endif()

external/opus/CMakeLists.txt

@@ -25,8 +25,8 @@ elseif (APPLE AND NOT build_osx)
         /usr/local/macos/lib/libopus.a
     )
 else()
-    target_link_libraries(external_opus
+    target_link_static_libraries(external_opus
     INTERFACE
-        /usr/local/lib/libopus.a
+        opus
     )
 endif()

external/qt/CMakeLists.txt

@@ -8,7 +8,7 @@ add_library(external_qt INTERFACE IMPORTED GLOBAL)
 add_library(desktop-app::external_qt ALIAS external_qt)
 
 if (LINUX)
-    if (CMAKE_SIZEOF_VOID_P EQUAL 8)
+    if (NOT build_linux32)
         target_compile_definitions(external_qt INTERFACE Q_OS_LINUX64)
     else()
         target_compile_definitions(external_qt INTERFACE Q_OS_LINUX32)
@@ -43,7 +43,11 @@ if (WIN32)
     set(qt_lib_suffix $<$<CONFIG:Debug>:d>.lib)
 else()
     set(qt_lib_prefix lib)
-    set(qt_lib_suffix $<$<CONFIG:Debug>:_debug>.a)
+    if (APPLE)
+        set(qt_lib_suffix $<$<CONFIG:Debug>:_debug>.a)
+    else()
+        set(qt_lib_suffix .a)
+    endif()
 endif()
 
 set(common_qt_libs
@@ -112,9 +116,90 @@ elseif (APPLE)
         desktop-app::external_zlib
         cups
     )
+else()
+    set(qt_libs
+        plugins/platforminputcontexts/${qt_lib_prefix}composeplatforminputcontextplugin
+        plugins/platforminputcontexts/${qt_lib_prefix}ibusplatforminputcontextplugin
+        plugins/platforminputcontexts/${qt_lib_prefix}fcitxplatforminputcontextplugin
+        plugins/platforminputcontexts/${qt_lib_prefix}himeplatforminputcontextplugin
+        plugins/platforminputcontexts/${qt_lib_prefix}nimfplatforminputcontextplugin
+        plugins/platforms/${qt_lib_prefix}qxcb
+        lib/${qt_lib_prefix}Qt5XcbQpa
+        lib/${qt_lib_prefix}Qt5LinuxAccessibilitySupport
+        lib/${qt_lib_prefix}Qt5ServiceSupport
+        lib/${qt_lib_prefix}Qt5EdidSupport
+        plugins/bearer/${qt_lib_prefix}qconnmanbearer
+        plugins/bearer/${qt_lib_prefix}qgenericbearer
+        plugins/bearer/${qt_lib_prefix}qnmbearer
+        ${common_qt_libs}
+        lib/${qt_lib_prefix}Qt5DBus
+        lib/${qt_lib_prefix}Qt5Core
+        lib/${qt_lib_prefix}qtpcre2
+        lib/${qt_lib_prefix}xcb-static
+    )
+    foreach (lib ${qt_libs})
+        list(APPEND qt_libs_list "${qt_loc}/${lib}${qt_lib_suffix}")
+    endforeach()
 endif()
 
 target_link_libraries(external_qt
 INTERFACE
     ${qt_libs_list}
 )
+
+if (LINUX)
+    target_include_directories(external_qt SYSTEM
+    INTERFACE
+        ${qt_loc}/mkspecs/linux-g++
+    )
+    target_link_options(external_qt
+    INTERFACE
+        -static-libstdc++
+        -pthread
+        -rdynamic
+        -Wl,-wrap,aligned_alloc
+        -Wl,-wrap,secure_getenv
+        -Wl,-wrap,clock_gettime
+        -Wl,--no-as-needed,-lrt
+    )
+    if (NOT build_linux32)
+        target_link_options(external_qt
+        INTERFACE
+            -Wl,-wrap,__divmodti4
+        )
+    else()
+        target_link_options(external_qt
+        INTERFACE
+            -Wl,-wrap,__divmoddi4
+        )
+    endif()
+    target_link_static_libraries(external_qt
+    INTERFACE
+        SM
+        ICE
+        fontconfig
+        freetype
+        expat
+        z
+        xcb-shm
+        xcb-xfixes
+        xcb-render
+        xkbcommon
+        xkbcommon-x11
+        icutu
+        icui18n
+        icuuc
+        icudata
+    )
+    target_link_libraries(external_qt
+    INTERFACE
+        desktop-app::linux_glibc_wraps
+        xcb
+        X11
+        X11-xcb
+        dbus-1
+        dl
+        glib-2.0
+        pthread
+    )
+endif()

external/zlib/CMakeLists.txt

@@ -44,6 +44,8 @@ if (WIN32)
     set(zlib_lib_loc ${libs_loc}/zlib/contrib/vstudio/vc14/x86/ZlibStat$<IF:$<CONFIG:Debug>,Debug,ReleaseWithoutAsm>)
 
     target_link_libraries(external_zlib INTERFACE ${zlib_lib_loc}/zlibstat.lib)
-else()
+elseif (APPLE)
     target_link_libraries(external_zlib INTERFACE /usr/local/lib/libz.a)
+else()
+    target_link_static_libraries(external_zlib INTERFACE z)
 endif()

generate_target.cmake

@@ -4,8 +4,8 @@
 # For license and copyright information please follow this link:
 # https://github.com/desktop-app/legal/blob/master/LEGAL
 
-function(generate_target parent_name postfix generated_files gen_dst)
-    add_custom_target(${parent_name}_${postfix} DEPENDS ${generated_files})
+function(generate_target parent_name postfix generated_timestamp generated_files gen_dst)
+    add_custom_target(${parent_name}_${postfix} DEPENDS ${generated_timestamp})
     init_target_folder(${parent_name}_${postfix} "(gen)")
     add_dependencies(${parent_name} ${parent_name}_${postfix})
     target_sources(${parent_name} PRIVATE ${generated_files})

init_target.cmake

@@ -34,7 +34,15 @@ function(init_target target_name) # init_target(my_target folder_name)
         XCODE_ATTRIBUTE_GCC_OPTIMIZATION_LEVEL $<IF:$<CONFIG:Debug>,0,fast>
         XCODE_ATTRIBUTE_LLVM_LTO $<IF:$<CONFIG:Debug>,NO,YES>
     )
-    if (NOT APPLE)
+    if (LINUX)
+        target_compile_options(${target_name} PUBLIC $<IF:$<CONFIG:Debug>,,-g -Ofast -fno-strict-aliasing>)
+        target_link_options(${target_name} PUBLIC $<IF:$<CONFIG:Debug>,,-g -Ofast>)
+        if (NOT build_linux32)
+            target_compile_options(${target_name} PUBLIC $<IF:$<CONFIG:Debug>,,-flto>)
+            target_link_options(${target_name} PUBLIC $<IF:$<CONFIG:Debug>,,-flto -fuse-linker-plugin>)
+        endif()
+    endif()
+    if (WIN32)
         set_target_properties(${target_name} PROPERTIES
             INTERPROCEDURAL_OPTIMIZATION_RELEASE True
             INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO True

linux_glibc_wraps/CMakeLists.txt

@@ -0,0 +1,24 @@
+# This file is part of Desktop App Toolkit,
+# a set of libraries for developing nice desktop applications.
+#
+# For license and copyright information please follow this link:
+# https://github.com/desktop-app/legal/blob/master/LEGAL
+
+if (LINUX)
+    add_library(linux_glibc_wraps STATIC)
+    add_library(desktop-app::linux_glibc_wraps ALIAS linux_glibc_wraps)
+
+    get_filename_component(src_loc . REALPATH)
+
+    nice_target_sources(linux_glibc_wraps ${src_loc}
+    PRIVATE
+        platform/linux/linux_glibc_wraps.c
+        platform/linux/linux_glibc_wraps_32.c
+        platform/linux/linux_glibc_wraps_64.c
+    )
+    if (NOT build_linux32)
+        set_source_files_properties(${src_loc}/platform/linux/linux_glibc_wraps_32.c PROPERTIES HEADER_FILE_ONLY TRUE)
+    else()
+        set_source_files_properties(${src_loc}/platform/linux/linux_glibc_wraps_64.c PROPERTIES HEADER_FILE_ONLY TRUE)
+    endif()
+endif()

linux_glibc_wraps/platform/linux/linux_glibc_wraps.c

@@ -0,0 +1,29 @@
+// This file is part of Desktop App Toolkit,
+// a set of libraries for developing nice desktop applications.
+//
+// For license and copyright information please follow this link:
+// https://github.com/desktop-app/legal/blob/master/LEGAL
+//
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+void *__wrap_aligned_alloc(size_t alignment, size_t size) {
+	void *result = NULL;
+	return (posix_memalign(&result, alignment, size) == 0)
+		? result
+		: NULL;
+}
+
+int enable_secure_inited = 0;
+int enable_secure = 1;
+
+char *__wrap_secure_getenv(const char *name) {
+	if (enable_secure_inited == 0) {
+		enable_secure_inited = 1;
+		enable_secure = (geteuid() != getuid())
+		|| (getegid() != getgid());
+	}
+	return enable_secure ? NULL : getenv(name);
+}
+