ref: da97b4c43e34b1c83769d5137165e5201fd1fde2
parent: 4854df62f72fe70d0517eecbd1cd6e7a6e508e67
author: Tamas Kenez <[email protected]>
date: Fri Nov 27 02:11:42 EST 2015
[cmake] Add better control of library dependencies. * CMakeLists.txt: Add `WITH_*' variables to force/auto/omit ZLIB/BZip2/PNG/HarfBuzz.
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -61,6 +61,13 @@
#
# . If you want to disable the automatic generation of the distribution
# targets, add the `-D FREETYPE_NO_DIST=true' command line argument.
+#
+# . Set the `WITH_ZLIB', `WITH_BZip2', `WITH_PNG', and `WITH_HarfBuzz'
+# CMake variables to `ON' or `OFF' to force or skip using a dependency.
+# Leave a variable undefined (which is the default) to use the dependency
+# only if it is available. Example:
+#
+# cmake ... -DWITH_ZLIB=ON -DWITH_HarfBuzz=OFF ...
cmake_minimum_required(VERSION 2.6)
@@ -153,10 +160,21 @@
# Find dependencies
-find_package(ZLIB)
-find_package(BZip2)
-find_package(PNG)
-find_package(HarfBuzz)
+foreach (d ZLIB BZip2 PNG HarfBuzz)
+ string(TOUPPER "${d}" D)+
+ if (DEFINED WITH_${d} OR DEFINED WITH_${D})+ if (WITH_${d} OR WITH_${D})+ find_package(${d} QUIET REQUIRED)+ endif ()
+ else ()
+ find_package(${d} QUIET)+ endif ()
+
+ if (${d}_FOUND OR ${D}_FOUND)+ message(STATUS "Building with ${d}")+ endif()
+endforeach ()
message(STATUS
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
2015-11-27 Tamas Kenez <[email protected]>
+ [cmake] Add better control of library dependencies.
+
+ * CMakeLists.txt: Add `WITH_*' variables to force/auto/omit
+ ZLIB/BZip2/PNG/HarfBuzz.
+
+2015-11-27 Tamas Kenez <[email protected]>
+
[cmake] Make `FindHarfbuzz' observe the REQUIRED option.
* builds/cmake/FindHarfBuzz.cmake: Implement it.