From ca5e0697032e9074f1a20526122679e4af464123 Mon Sep 17 00:00:00 2001
From: Egor Yusov <egor.yusov@gmail.com>
Date: Tue, 17 Sep 2019 23:24:14 -0700
Subject: [PATCH] Added option to disable installation

---
 CMakeLists.txt                 | 23 +++++++++++++----------
 src/bin/jp2/CMakeLists.txt     | 10 ++++++----
 src/lib/openjp2/CMakeLists.txt | 32 ++++++++++++++++++--------------
 3 files changed, 37 insertions(+), 28 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8f89df72..2dcd8712 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -107,6 +107,7 @@ endif()
 # Install directories
 # Build DOCUMENTATION (not in ALL target and only if Doxygen is found)
 option(BUILD_DOC "Build the HTML documentation (with doxygen if available)." OFF)
+option(OPENJPEG_SKIP_INSTALL "Disable openjpeg installation" ON)
 
 string(TOLOWER ${PROJECT_NAME} projectname)
 set(OPENJPEG_INSTALL_SUBDIR "${projectname}-${OPENJPEG_VERSION_MAJOR}.${OPENJPEG_VERSION_MINOR}")
@@ -334,16 +335,18 @@ if(BUILD_TESTING)
   endif()
 endif()
 
-#-----------------------------------------------------------------------------
-# install all targets referenced as OPENJPEGTargets
-install(EXPORT OpenJPEGTargets DESTINATION ${OPENJPEG_INSTALL_PACKAGE_DIR})
-configure_file( ${${OPENJPEG_NAMESPACE}_SOURCE_DIR}/cmake/OpenJPEGConfig.cmake.in
-  ${${OPENJPEG_NAMESPACE}_BINARY_DIR}/OpenJPEGConfig.cmake
-  @ONLY
-)
-install( FILES ${OPENJPEG_BINARY_DIR}/OpenJPEGConfig.cmake
-  DESTINATION ${OPENJPEG_INSTALL_PACKAGE_DIR}
-)
+if(NOT OPENJPEG_SKIP_INSTALL)
+  #-----------------------------------------------------------------------------
+  # install all targets referenced as OPENJPEGTargets
+  install(EXPORT OpenJPEGTargets DESTINATION ${OPENJPEG_INSTALL_PACKAGE_DIR})
+  configure_file( ${${OPENJPEG_NAMESPACE}_SOURCE_DIR}/cmake/OpenJPEGConfig.cmake.in
+    ${${OPENJPEG_NAMESPACE}_BINARY_DIR}/OpenJPEGConfig.cmake
+    @ONLY
+  )
+  install( FILES ${OPENJPEG_BINARY_DIR}/OpenJPEGConfig.cmake
+    DESTINATION ${OPENJPEG_INSTALL_PACKAGE_DIR}
+  )
+endif()
 
 #-----------------------------------------------------------------------------
 # install CHANGES and LICENSE
diff --git a/src/bin/jp2/CMakeLists.txt b/src/bin/jp2/CMakeLists.txt
index 4d4bd952..79124f6e 100644
--- a/src/bin/jp2/CMakeLists.txt
+++ b/src/bin/jp2/CMakeLists.txt
@@ -65,10 +65,12 @@ foreach(exe opj_decompress opj_compress opj_dump)
     endif()
   endif()
   # Install exe
-  install(TARGETS ${exe}
-    EXPORT OpenJPEGTargets
-    DESTINATION ${OPENJPEG_INSTALL_BIN_DIR} COMPONENT Applications
-  )
+  if(NOT OPENJPEG_SKIP_INSTALL)
+    install(TARGETS ${exe}
+      EXPORT OpenJPEGTargets
+      DESTINATION ${OPENJPEG_INSTALL_BIN_DIR} COMPONENT Applications
+    )
+  endif()
   if(OPJ_USE_DSYMUTIL)
     add_custom_command(TARGET ${exe} POST_BUILD
     COMMAND "dsymutil" "$<TARGET_FILE:${exe}>"
diff --git a/src/lib/openjp2/CMakeLists.txt b/src/lib/openjp2/CMakeLists.txt
index ea4131a3..3ee60523 100644
--- a/src/lib/openjp2/CMakeLists.txt
+++ b/src/lib/openjp2/CMakeLists.txt
@@ -1,8 +1,10 @@
 include_regular_expression("^.*$")
 
 #
-install( FILES  ${CMAKE_CURRENT_BINARY_DIR}/opj_config.h
- DESTINATION ${OPENJPEG_INSTALL_INCLUDE_DIR} COMPONENT Headers)
+if(NOT OPENJPEG_SKIP_INSTALL)
+  install( FILES  ${CMAKE_CURRENT_BINARY_DIR}/opj_config.h
+   DESTINATION ${OPENJPEG_INSTALL_INCLUDE_DIR} COMPONENT Headers)
+endif()
 
 include_directories(
   ${${OPENJPEG_NAMESPACE}_BINARY_DIR}/src/lib/openjp2 # opj_config.h and opj_config_private.h
@@ -114,18 +116,20 @@ if(NOT ${CMAKE_VERSION} VERSION_LESS "2.8.12")
   target_compile_options(${OPENJPEG_LIBRARY_NAME} PRIVATE ${OPENJP2_COMPILE_OPTIONS})
 endif()
 
-# Install library
-install(TARGETS ${INSTALL_LIBS}
-  EXPORT OpenJPEGTargets
-  RUNTIME DESTINATION ${OPENJPEG_INSTALL_BIN_DIR} COMPONENT Applications
-  LIBRARY DESTINATION ${OPENJPEG_INSTALL_LIB_DIR} COMPONENT Libraries
-  ARCHIVE DESTINATION ${OPENJPEG_INSTALL_LIB_DIR} COMPONENT Libraries
-)
-
-# Install includes files
-install(FILES openjpeg.h opj_stdint.h
-  DESTINATION ${OPENJPEG_INSTALL_INCLUDE_DIR} COMPONENT Headers
-)
+if(NOT OPENJPEG_SKIP_INSTALL)
+  # Install library
+  install(TARGETS ${INSTALL_LIBS}
+    EXPORT OpenJPEGTargets
+    RUNTIME DESTINATION ${OPENJPEG_INSTALL_BIN_DIR} COMPONENT Applications
+    LIBRARY DESTINATION ${OPENJPEG_INSTALL_LIB_DIR} COMPONENT Libraries
+    ARCHIVE DESTINATION ${OPENJPEG_INSTALL_LIB_DIR} COMPONENT Libraries
+  )
+  
+  # Install includes files
+  install(FILES openjpeg.h opj_stdint.h
+    DESTINATION ${OPENJPEG_INSTALL_INCLUDE_DIR} COMPONENT Headers
+  )
+endif()
 
 if(BUILD_DOC)
 # install man page of the library