From 18b3bde0c00cf0b7b538da73c0759c50edf858af Mon Sep 17 00:00:00 2001
From: Tim Harder <radhermit@gentoo.org>
Date: Mon, 29 Apr 2019 20:45:42 +0200
Subject: [PATCH 2/3] Allow building of just glxtrace library (without GUI
 tools)

Patch was rebased multiple times from 1.0 to 8.0 now.

Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>
---
 CMakeLists.txt         | 18 ++++++++++++++++++
 retrace/CMakeLists.txt |  4 ++++
 2 files changed, 22 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 36879db6..65be2d72 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -47,6 +47,8 @@ if (ANDROID)
     message (FATAL_ERROR "Android is no longer supported (https://git.io/vH2gW)")
 endif ()
 
+option (BUILD_LIB_ONLY "Build the glxtrace library only" OFF)
+
 # Proprietary Linux games often ship their own libraries (zlib, libstdc++,
 # etc.) in order to ship a single set of binaries across multiple
 # distributions.  Given that apitrace wrapper modules will be loaded into those
@@ -109,6 +111,8 @@ endif ()
 
 find_package (Threads)
 
+if (NOT BUILD_LIB_ONLY)
+
 if (CMAKE_SYSTEM_NAME STREQUAL "Linux" AND NOT ENABLE_STATIC_EXE)
     find_package (procps)
     if (PROCPS_FOUND)
@@ -116,6 +120,8 @@ if (CMAKE_SYSTEM_NAME STREQUAL "Linux" AND NOT ENABLE_STATIC_EXE)
     endif ()
 endif ()
 
+endif (NOT BUILD_LIB_ONLY)
+
 if (ENABLE_GUI)
     if (NOT (ENABLE_GUI STREQUAL "AUTO"))
         set (REQUIRE_GUI REQUIRED)
@@ -186,11 +192,15 @@ elseif (ENABLE_X11)
     endif ()
 endif ()
 
+if (NOT BUILD_LIB_ONLY)
+
 if (ENABLE_EGL AND ENABLE_WAFFLE)
     # Use Waffle for eglretrace
     find_package (Waffle REQUIRED)
 endif ()
 
+endif (NOT BUILD_LIB_ONLY)
+
 
 ##############################################################################
 # Set global build options
@@ -459,6 +469,8 @@ set (WRAPPER_INSTALL_DIR ${LIB_ARCH_INSTALL_DIR}/wrappers)
 
 include_directories (${CMAKE_CURRENT_SOURCE_DIR}/compat)
 
+if (NOT BUILD_LIB_ONLY OR ENABLE_CLI)
+
 if (NOT ENABLE_STATIC_SNAPPY)
     find_package (SNAPPY)
 endif ()
@@ -486,6 +498,10 @@ if (NOT ZLIB_FOUND)
 endif ()
 include_directories (${ZLIB_INCLUDE_DIRS})
 
+endif (NOT BUILD_LIB_ONLY OR ENABLE_CLI)
+
+if (NOT BUILD_LIB_ONLY)
+
 # FindPNG.cmake will search ZLIB internally (without requiring any particular
 # version), adding its include dirs and libraries, and overwriting ZLIB_FOUND.
 # So if the system's ZLIB was did not meet the our requirements, then there's
@@ -501,6 +517,8 @@ if (NOT PNG_FOUND)
     add_subdirectory (thirdparty/libpng)
 endif ()
 
+endif (NOT BUILD_LIB_ONLY)
+
 if (MSVC)
     add_subdirectory (thirdparty/getopt)
     include_directories (${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/getopt)
diff --git a/retrace/CMakeLists.txt b/retrace/CMakeLists.txt
index 76dc8362..e1bad990 100644
--- a/retrace/CMakeLists.txt
+++ b/retrace/CMakeLists.txt
@@ -15,6 +15,8 @@ include_directories (
 
 add_definitions (-DRETRACE)
 
+if (NOT BUILD_LIB_ONLY)
+
 add_custom_command (
     OUTPUT glretrace_gl.cpp
     COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/glretrace.py > ${CMAKE_CURRENT_BINARY_DIR}/glretrace_gl.cpp
@@ -343,3 +345,5 @@ if (WIN32)
     install (TARGETS d3dretrace RUNTIME DESTINATION bin)
     install_pdb (d3dretrace DESTINATION bin)
 endif ()
+
+endif (NOT BUILD_LIB_ONLY)
-- 
2.21.0