Merge pull request #20 from willfurnass/patch-2-0-13-building_on_linux

Building on Linux: #define DLL_EXPORT as the empty string and link to libm

build/CMake/CMakeLists.txt

@@ -15,4 +15,4 @@ add_library(epanet STATIC  ../../src/epanet.c ../../src/hydraul.c ../../src/hash
 # the standalone executable
 include_directories(../../src)
 add_executable(runepanet ../../run/main.c)
-target_link_libraries (runepanet LINK_PUBLIC epanet)
+target_link_libraries (runepanet LINK_PUBLIC epanet m)

include/epanet2.h

@@ -47,6 +47,8 @@
     #else
       #define DLLEXPORT
     #endif
+  #else
+    #define DLLEXPORT
   #endif
 #endif
 
@@ -271,4 +273,4 @@ extern "C" {
 }
 #endif
 
-#endif //EPANET2_H
+#endif //EPANET2_H