From 4019fd9081241aca8a054252fcb5654297888a38 Mon Sep 17 00:00:00 2001
From: Mark Abraham <mark.j.abraham@gmail.com>
Date: Mon, 16 Jun 2014 11:53:30 +0200
Subject: Enhancements to CMake usage

These changes mostly address being able to use fully-constructed
source-file targets in GROMACS, e.g. to construct an object
library. Thus compilation properties are moved onto the source files,
rather than the library into which they are linked.

Removed unnecessary library properties

Made it easier to handle lists of source files in non-repetitious
ways.

Change-Id: I01a4a56ba8a8d45ba02d95d08c948b9ca5015013

diff --git a/src/compression/CMakeLists.txt b/src/compression/CMakeLists.txt
index 267a45a..3efd6bb 100644
--- a/src/compression/CMakeLists.txt
+++ b/src/compression/CMakeLists.txt
@@ -1,11 +1,12 @@
-add_library(tng_compress bwlzh.c bwt.c coder.c dict.c fixpoint.c huffman.c huffmem.c lz77.c merge_sort.c mtf.c rle.c tng_compress.c vals16.c warnmalloc.c widemuldiv.c xtc2.c xtc3.c)
+set(source_files bwlzh.c bwt.c coder.c dict.c fixpoint.c huffman.c huffmem.c lz77.c merge_sort.c mtf.c rle.c tng_compress.c vals16.c warnmalloc.c widemuldiv.c xtc2.c xtc3.c)
+
+add_library(tng_compress ${source_files})
+
+# Append the required library dependencies
 if(UNIX)
-target_link_libraries(tng_compress m)
+  target_link_libraries(tng_compress m)
 endif()
 
-set_property(TARGET tng_compress PROPERTY LIBRARY_OUTPUT_DIRECTORY ${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
-set_property(TARGET tng_compress PROPERTY ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
-
 install(TARGETS tng_compress
         LIBRARY DESTINATION lib
         ARCHIVE DESTINATION lib)
diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt
index c760f57..81b5843 100644
--- a/src/lib/CMakeLists.txt
+++ b/src/lib/CMakeLists.txt
@@ -1,18 +1,18 @@
+set(source_files tng_io.c md5.c)
 if(TNG_BUILD_FORTRAN)
-  add_library(tng_io tng_io.c md5.c tng_io_fortran.c)
-else()
-  add_library(tng_io tng_io.c md5.c)
+  list(APPEND source_files tng_io_fortran.c)
 endif()
 
-set_property(TARGET tng_io PROPERTY LIBRARY_OUTPUT_DIRECTORY ${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
-set_property(TARGET tng_io PROPERTY ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
+add_library(tng_io ${source_files})
 
-install(TARGETS tng_io
-        LIBRARY DESTINATION lib
-        ARCHIVE DESTINATION lib)
+# Now add source-file compilation properties to the source-file
+# targets
 
 if(HAVE_INTTYPES_H)
-  set_property(TARGET tng_io APPEND PROPERTY COMPILE_DEFINITIONS USE_STD_INTTYPES_H)
+  set_property(SOURCE tng_io.c APPEND PROPERTY COMPILE_DEFINITIONS USE_STD_INTTYPES_H)
+endif()
+if(TNG_BUILD_WITH_ZLIB)
+  set_property(SOURCE tng_io.c APPEND PROPERTY COMPILE_DEFINITIONS USE_ZLIB)
 endif()
 
 # This test is for md5. The TNG library itself determines the actual byte order -
@@ -20,12 +20,15 @@ endif()
 include(TestBigEndian)
 test_big_endian(TNG_INTEGER_BIG_ENDIAN)
 if(TNG_INTEGER_BIG_ENDIAN)
-  set_property(TARGET tng_io APPEND PROPERTY COMPILE_DEFINITIONS TNG_INTEGER_BIG_ENDIAN)
+  set_property(SOURCE md5.c APPEND PROPERTY COMPILE_DEFINITIONS TNG_INTEGER_BIG_ENDIAN)
 endif()
 
+# Append the required library dependencies
+target_link_libraries(tng_io tng_compress)
 if(TNG_BUILD_WITH_ZLIB)
-  set_property(TARGET tng_io APPEND PROPERTY COMPILE_DEFINITIONS USE_ZLIB)
-  target_link_libraries(tng_io tng_compress ${ZLIB_LIBRARIES})
-else()
-  target_link_libraries(tng_io tng_compress)
+  target_link_libraries(tng_io ${ZLIB_LIBRARIES})
 endif()
+
+install(TARGETS tng_io
+        LIBRARY DESTINATION lib
+        ARCHIVE DESTINATION lib)
-- 
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