From 2592e50f83805ed0997b0d30c9a1f412e48a1684 Mon Sep 17 00:00:00 2001
From: Fabian Wolff <fabi.wolff@arcor.de>
Date: Sun, 13 Mar 2016 14:36:10 +0100
Subject: [PATCH] Implement more flexible installation

---
 CMakeLists.txt          | 24 +++++++++++++++++++++++-
 COMPILE                 | 18 +++++++++++++++++-
 sq/CMakeLists.txt       |  4 ++--
 sqstdlib/CMakeLists.txt | 16 +++++++++-------
 squirrel/CMakeLists.txt | 20 +++++++++++---------
 5 files changed, 62 insertions(+), 20 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7657079..add3193 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -35,8 +35,30 @@ if(CMAKE_SIZEOF_VOID_P EQUAL 8)
   add_definitions(-D_SQ64)
 endif()
 
+if(NOT DEFINED INSTALL_BIN_DIR)
+  set(INSTALL_BIN_DIR bin)
+endif()
+
+if(NOT DEFINED INSTALL_LIB_DIR)
+  set(INSTALL_LIB_DIR lib)
+endif()
+
 add_subdirectory(squirrel)
 add_subdirectory(sqstdlib)
 add_subdirectory(sq)
 
-install(FILES doc/squirrel3.pdf doc/sqstdlib3.pdf DESTINATION share/doc/squirrel3)
+if(DEFINED INSTALL_DOC_DIR)
+  install(FILES doc/squirrel3.pdf doc/sqstdlib3.pdf DESTINATION ${INSTALL_DOC_DIR})
+endif()
+
+if(DEFINED INSTALL_INC_DIR)
+  set(SQ_PUB_HEADERS include/sqconfig.h
+                     include/sqstdaux.h
+                     include/sqstdblob.h
+                     include/sqstdio.h
+                     include/sqstdmath.h
+                     include/sqstdstring.h
+                     include/sqstdsystem.h
+                     include/squirrel.h)
+  install(FILES ${SQ_PUB_HEADERS} DESTINATION ${INSTALL_INC_DIR})
+endif()
diff --git a/COMPILE b/COMPILE
index 05591a8..220999a 100644
--- a/COMPILE
+++ b/COMPILE
@@ -44,7 +44,23 @@ can change this behavior by calling CMake like this:
 
  $ cmake .. -DCMAKE_INSTALL_PREFIX=/some/path/on/your/system
 
-Under Windows, it is probably easiest to use the CMake GUI interface.
+With the INSTALL_BIN_DIR and INSTALL_LIB_DIR options, the directories
+the binaries & libraries will go in (relative to CMAKE_INSTALL_PREFIX)
+can be specified. For instance,
+
+ $ cmake .. -DINSTALL_LIB_DIR=lib64
+
+will install the libraries into a 'lib64' subdirectory in the top
+source directory. If INSTALL_DOC_DIR is set, the PDF documentation
+will be installed into the directory the value of INSTALL_DOC_DIR
+points to. There is no default directory - if you want only the
+binaries and no documentation, just don't specify INSTALL_DOC_DIR, and
+no documentation will be installed. The same applies for
+INSTALL_INC_DIR, which can install the public header files.
+
+Under Windows, it is probably easiest to use the CMake GUI interface,
+although invoking CMake from the command line as explained above
+should work as well.
 
 GCC USERS
 .........................................................
diff --git a/sq/CMakeLists.txt b/sq/CMakeLists.txt
index 4609b0e..14d91e6 100644
--- a/sq/CMakeLists.txt
+++ b/sq/CMakeLists.txt
@@ -1,7 +1,7 @@
 add_executable(sq sq.c)
 set_target_properties(sq PROPERTIES LINKER_LANGUAGE C)
 target_link_libraries(sq squirrel sqstdlib)
-install(TARGETS sq RUNTIME DESTINATION bin)
+install(TARGETS sq RUNTIME DESTINATION ${INSTALL_BIN_DIR})
 
 add_executable(sq_static sq.c)
 set_target_properties(sq_static PROPERTIES LINKER_LANGUAGE C)
@@ -11,4 +11,4 @@ if(CMAKE_COMPILER_IS_GNUCXX)
   set_target_properties(sq_static PROPERTIES COMPILE_FLAGS "-static -Wl,-static")
 endif()
 
-install(TARGETS sq_static RUNTIME DESTINATION bin)
+install(TARGETS sq_static RUNTIME DESTINATION ${INSTALL_BIN_DIR})
diff --git a/sqstdlib/CMakeLists.txt b/sqstdlib/CMakeLists.txt
index 78bed96..ee60d99 100644
--- a/sqstdlib/CMakeLists.txt
+++ b/sqstdlib/CMakeLists.txt
@@ -1,15 +1,17 @@
-set(SQSTDLIB_SRC sqstdblob.cpp
+set(SQSTDLIB_SRC sqstdaux.cpp
+                 sqstdblob.cpp
                  sqstdio.cpp
-                 sqstdstream.cpp
                  sqstdmath.cpp
-                 sqstdsystem.cpp
+                 sqstdrex.cpp
+                 sqstdstream.cpp
                  sqstdstring.cpp
-                 sqstdaux.cpp
-                 sqstdrex.cpp)
+                 sqstdsystem.cpp)
 
 add_library(sqstdlib SHARED ${SQSTDLIB_SRC})
 target_link_libraries(sqstdlib squirrel)
-install(TARGETS sqstdlib RUNTIME DESTINATION bin LIBRARY DESTINATION lib ARCHIVE DESTINATION lib)
+install(TARGETS sqstdlib RUNTIME DESTINATION ${INSTALL_BIN_DIR}
+                         LIBRARY DESTINATION ${INSTALL_LIB_DIR}
+                         ARCHIVE DESTINATION ${INSTALL_LIB_DIR})
 
 add_library(sqstdlib_static STATIC ${SQSTDLIB_SRC})
-install(TARGETS sqstdlib_static ARCHIVE DESTINATION lib)
+install(TARGETS sqstdlib_static ARCHIVE DESTINATION ${INSTALL_LIB_DIR})
diff --git a/squirrel/CMakeLists.txt b/squirrel/CMakeLists.txt
index 1ef3866..84c0d36 100644
--- a/squirrel/CMakeLists.txt
+++ b/squirrel/CMakeLists.txt
@@ -1,18 +1,20 @@
 set(SQUIRREL_SRC sqapi.cpp
                  sqbaselib.cpp
-                 sqfuncstate.cpp
-                 sqdebug.cpp
-                 sqlexer.cpp
-                 sqobject.cpp
+                 sqclass.cpp
                  sqcompiler.cpp
+                 sqdebug.cpp
+                 sqfuncstate.cpp
+                 sqlexer.cpp
+                 sqmem.cpp
+                 sqobject.cpp
                  sqstate.cpp
                  sqtable.cpp
-                 sqmem.cpp
-                 sqvm.cpp
-                 sqclass.cpp)
+                 sqvm.cpp)
 
 add_library(squirrel SHARED ${SQUIRREL_SRC})
-install(TARGETS squirrel RUNTIME DESTINATION bin LIBRARY DESTINATION lib ARCHIVE DESTINATION lib)
+install(TARGETS squirrel RUNTIME DESTINATION ${INSTALL_BIN_DIR}
+                         LIBRARY DESTINATION ${INSTALL_LIB_DIR}
+                         ARCHIVE DESTINATION ${INSTALL_LIB_DIR})
 
 add_library(squirrel_static STATIC ${SQUIRREL_SRC})
-install(TARGETS squirrel_static ARCHIVE DESTINATION lib)
+install(TARGETS squirrel_static ARCHIVE DESTINATION ${INSTALL_LIB_DIR})