FindLIQ.cmake: delete libimagequant source code download logic

* FindLIQ.cmake: add comment of LIQ_BUILD which is used in CMakeLists.txt

And fixed some indent error.

* FindLIQ.cmake: delete download libimagequant source code logic.

* And delete the LIQ_BUILD logic in CMakeLists.txt correspondingly.
* Fixed some indent errors.

* FindLIQ.cmake: Delete libimagequant download path

1 files changed, 5 insertions, 31 deletions

diff --git a/cmake/modules/FindLIQ.cmake b/cmake/modules/FindLIQ.cmake
index bf17fcf..4f730f0 100644
--- a/cmake/modules/FindLIQ.cmake
+++ b/cmake/modules/FindLIQ.cmake
@@ -4,56 +4,30 @@
 # This module defines
 #  LIQ_INCLUDE_DIR, where to find libimagequant.h
 #  LIQ_LIBRARIES, the libraries to link against to use libimagequant.
-#  LIQ_FOUND, If false, do not try to use libimagequant.
+#  LIQ_FOUND, if false, do not try to use libimagequant.
 
 SET(LIQ_FOUND "NO")
 
 FIND_PATH(LIQ_INCLUDE_DIR libimagequant.h
-"${PROJECT_SOURCE_DIR}/libimagequant"
-"${PROJECT_SOURCE_DIR}/pngquant/lib"
-/usr/local/include
-/usr/include
+  /usr/local/include
+  /usr/include
 )
 
 FIND_LIBRARY(LIQ_LIBRARY
   NAMES libimagequant imagequant
-  PATHS "${PROJECT_SOURCE_DIR}/libimagequant" "${PROJECT_SOURCE_DIR}/pngquant/lib" /usr/lib64 /usr/lib /usr/local/lib
+  PATHS /usr/lib64 /usr/lib /usr/local/lib
 )
 
 IF (LIQ_LIBRARY AND LIQ_INCLUDE_DIR)
     SET(LIQ_FOUND "YES")
     SET(LIQ_LIBRARIES ${LIQ_LIBRARY})
-		SET(HAVE_LIBIMAGEQUANT 1)
+    SET(HAVE_LIBIMAGEQUANT 1)
 ENDIF (LIQ_LIBRARY AND LIQ_INCLUDE_DIR)
 
 IF (LIQ_FOUND)
   IF (NOT LIQ_FIND_QUIETLY)
     MESSAGE(STATUS "Found LIQ: ${LIQ_LIBRARY} ${LIQ_INCLUDE_DIR}")
   ENDIF (NOT LIQ_FIND_QUIETLY)
-ELSE (LIQ_FOUND)
-  # if existing library not found, then download and build it
-  IF (NOT WIN32 OR CYGWIN OR MINGW) # MSVC's C compiler is too old to compile libimagequant
-    IF (CMAKE_VERSION VERSION_GREATER "2.8.1")
-      MESSAGE(STATUS "LIQ will be built")
-      INCLUDE(ExternalProject)
-      EXTERNALPROJECT_ADD(
-          libimagequant
-          URL "http://pngquant.org/libimagequant-2.0.0-src.tar.bz2"
-          SOURCE_DIR libimagequant
-          BUILD_IN_SOURCE 1
-          INSTALL_DIR libimagequant
-          INSTALL_COMMAND true
-          CONFIGURE_COMMAND true
-          BUILD_COMMAND make static CFLAGSADD='-fPIC'
-      )
-
-      SET(LIQ_FOUND "SORTOF")
-      SET(LIQ_BUILD "YES")
-    SET(LIQ_LIBRARIES "${PROJECT_BINARY_DIR}/libimagequant/libimagequant.a")
-    SET(LIQ_INCLUDE_DIR "${PROJECT_BINARY_DIR}/libimagequant/")
-      SET(HAVE_LIBIMAGEQUANT 1)
-    ENDIF(CMAKE_VERSION VERSION_GREATER "2.8.1")
-  ENDIF(NOT WIN32 OR CYGWIN OR MINGW)
 ENDIF (LIQ_FOUND)
 
 MARK_AS_ADVANCED(LIQ_INCLUDE_DIR LIQ_LIBRARIES LIQ_BUILD)