Merge pull request #13 from apache/update_readme

Update readme
diff --git a/libs/crypto/libpqnist/CMakeLists.txt b/libs/crypto/libpqnist/CMakeLists.txt
index de2ed4e..7b4177a 100644
--- a/libs/crypto/libpqnist/CMakeLists.txt
+++ b/libs/crypto/libpqnist/CMakeLists.txt
@@ -57,9 +57,16 @@
         message(STATUS "GCC 4.8 required to run address sanitizer - please upgrade your installation")
     endif(GCC_VERSION VERSION_GREATER 4.8 OR GCC_VERSION VERSION_EQUAL 4.8)
 
-    set(CMAKE_C_FLAGS_RELEASE     " -static -O2")
-    set(CMAKE_C_FLAGS_DEBUG       " -static -O0 -g3 -D DEBUG")
-    set(CMAKE_C_FLAGS_COVERAGE    " -static -O0 -g3 --coverage")
+    IF (BUILD_SHARED_LIBS)
+        set(CMAKE_C_FLAGS_RELEASE     "-O2")
+        set(CMAKE_C_FLAGS_DEBUG       "-O0 -g3 -D DEBUG")
+        set(CMAKE_C_FLAGS_COVERAGE    "-O0 -g3 --coverage")
+    else(BUILD_SHARED_LIBS)
+        set(CMAKE_C_FLAGS_RELEASE     "-static -O2")
+        set(CMAKE_C_FLAGS_DEBUG       "-static -O0 -g3 -D DEBUG")
+        set(CMAKE_C_FLAGS_COVERAGE    "-static -O0 -g3 --coverage")
+    endif(BUILD_SHARED_LIBS)    
+
 endif(CMAKE_COMPILER_IS_GNUCC)
 
 if(CMAKE_BUILD_TYPE STREQUAL "Coverage")