Introduce DESKTOP_APP_USE_PACKAGED.

CMakeLists.txt

@@ -5,4 +5,6 @@
 # https://github.com/desktop-app/legal/blob/master/LEGAL
 
 add_subdirectory(external)
+if (DESKTOP_APP_USE_GLIBC_WRAPS)
     add_subdirectory(linux_glibc_wraps)
+endif()

external/auto_updates/xz/CMakeLists.txt

@@ -7,7 +7,10 @@
 add_library(external_xz INTERFACE IMPORTED GLOBAL)
 add_library(desktop-app::external_xz ALIAS external_xz)
 
-if (APPLE AND NOT build_osx)
+if (DESKTOP_APP_USE_PACKAGED)
+    find_package(LibLZMA REQUIRED)
+    target_link_libraries(external_xz LibLZMA::LibLZMA)
+elseif (APPLE AND NOT build_osx)
     target_link_libraries(external_xz
     INTERFACE
         /usr/local/macos/lib/liblzma.a

external/openssl/CMakeLists.txt

@@ -47,9 +47,8 @@ INTERFACE
 )
 
 if (LINUX)
-    target_link_libraries(external_openssl
-    INTERFACE
-        desktop-app::linux_glibc_wraps
-        pthread
-    )
+    if (DESKTOP_APP_USE_GLIBC_WRAPS)
+        target_link_libraries(external_openssl INTERFACE desktop-app::linux_glibc_wraps)
+    endif()
+    target_link_libraries(external_openssl INTERFACE pthread)
 endif()

external/qt/CMakeLists.txt

@@ -191,9 +191,11 @@ if (LINUX)
         icuuc
         icudata
     )
+    if (DESKTOP_APP_USE_GLIBC_WRAPS)
+        target_link_libraries(external_qt INTERFACE desktop-app::linux_glibc_wraps)
+    endif()
     target_link_libraries(external_qt
     INTERFACE
-        desktop-app::linux_glibc_wraps
         xcb
         X11
         X11-xcb

linux_glibc_wraps/CMakeLists.txt

@@ -4,7 +4,6 @@
 # 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)
 
@@ -21,4 +20,3 @@ if (LINUX)
 else()
     set_source_files_properties(${src_loc}/platform/linux/linux_glibc_wraps_64.c PROPERTIES HEADER_FILE_ONLY TRUE)
 endif()
-endif()

run_cmake.py

@@ -0,0 +1,54 @@
+'''
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+'''
+import sys, os, shutil, subprocess
+
+def run(project, arguments):
+    scriptPath = os.path.dirname(os.path.realpath(__file__))
+    basePath = scriptPath + '/../out'
+    
+    cmake = ['cmake']
+    for arg in arguments:
+        if arg == 'debug':
+            cmake.append('-DCMAKE_BUILD_TYPE=Debug')
+        elif arg != 'fresh':
+            cmake.append(arg)
+    
+    if sys.platform == 'win32':
+        cmake.append('-AWin32')
+    elif sys.platform != 'darwin':
+        if not '-DCMAKE_BUILD_TYPE=Debug' in cmake:
+            cmake.append('-DCMAKE_BUILD_TYPE=Release')
+
+    specialTarget = ''
+    specialTargetFile = scriptPath + '/../' + project + '/build/target'
+    if os.path.isfile(specialTargetFile):
+        with open(specialTargetFile, 'r') as f:
+            for line in f:
+                target = line.strip()
+                if len(target) > 0:
+                    cmake.append('-DDESKTOP_APP_SPECIAL_TARGET=' + target)
+
+    cmake.extend(['-Werror=dev', '-Werror=deprecated', '--warn-uninitialized', '..'])
+    command = ' '.join(cmake)
+
+    if not os.path.exists(basePath):
+        os.mkdir(basePath)
+    elif 'fresh' in arguments:
+        paths = os.listdir(basePath)
+        for path in paths:
+            if path.lower().startswith('cmake'):
+                full = basePath + '/' + path
+                if os.path.isdir(full):
+                    shutil.rmtree(full, ignore_errors=False)
+                else:
+                    os.remove(full)
+        print('Cleared previous.')
+    os.chdir(basePath)
+    subprocess.call(command, shell=True)
+
+    return 0

variables.cmake

@@ -8,6 +8,8 @@ set(DESKTOP_APP_SPECIAL_TARGET "" CACHE STRING "Use special platform target, lik
 option(DESKTOP_APP_DISABLE_CRASH_REPORTS "Disable crash report generation." OFF)
 option(DESKTOP_APP_DISABLE_SPELLCHECK "Disable spellcheck library." OFF)
 option(DESKTOP_APP_LOTTIE_USE_CACHE "Use caching in lottie animations." ON)
+option(DESKTOP_APP_USE_GLIBC_WRAPS "Use wraps for new GLIBC features." OFF)
+option(DESKTOP_APP_USE_PACKAGED "Find libraries using CMake instead of exact paths." ON)
 
 function(report_bad_special_target)
     message(FATAL_ERROR "Bad special target '${DESKTOP_APP_SPECIAL_TARGET}'")
@@ -19,6 +21,11 @@ if (DESKTOP_APP_SPECIAL_TARGET STREQUAL ""
     set(disable_autoupdate 1)
 endif()
 
+if (NOT DESKTOP_APP_SPECIAL_TARGET STREQUAL "")
+    set(DESKTOP_APP_USE_GLIBC_WRAPS ON)
+    set(DESKTOP_APP_USE_PACKAGED OFF)
+endif()
+
 if (NOT DESKTOP_APP_SPECIAL_TARGET STREQUAL "osx")
     set(CMAKE_OSX_DEPLOYMENT_TARGET 10.12 CACHE STRING "Minimum OS X deployment version" FORCE)
 else()
@@ -38,6 +45,7 @@ if (WIN32)
         AND NOT DESKTOP_APP_SPECIAL_TARGET STREQUAL "win")
         report_bad_special_target()
     endif()
+    set(DESKTOP_APP_USE_GLIBC_WRAPS OFF)
 elseif (APPLE)
     if (DESKTOP_APP_SPECIAL_TARGET STREQUAL "osx")
         set(build_osx 1)
@@ -48,6 +56,7 @@ elseif (APPLE)
         AND NOT DESKTOP_APP_SPECIAL_TARGET STREQUAL "mac")
         report_bad_special_target()
     endif()
+    set(DESKTOP_APP_USE_GLIBC_WRAPS OFF)
 else()
     set(LINUX 1)
     execute_process(COMMAND uname -m OUTPUT_VARIABLE machine_uname)