diff --git a/build/make.linux64.so.py b/build/make.linux64.so.py
index 8104754..9c9c283 100644
--- a/build/make.linux64.so.py
+++ b/build/make.linux64.so.py
@@ -16,6 +16,7 @@ builddir = "./build_linux64"
 
 doinstall = True   #copies the build_output to the install dir when finished
 cc = "gcc" #compiler
+# -fvisibility=hidden -- stripping symbols to avoid namespace pollution doesn't seem to work on Linux
 cflags = "-fPIC -O3 -DEXPORT_AMSCIMGLIB4"
 libraries = "-l{} -ljpeg -lpng -lz -lm".format(libname)
 libdirs = "-L{} -L{}/lib -L{}/lib".format(builddir,commondir,depdir)
diff --git a/build/make.linux64.test.py b/build/make.linux64.test.py
index b9d7147..b348109 100644
--- a/build/make.linux64.test.py
+++ b/build/make.linux64.test.py
@@ -14,7 +14,7 @@ depdir = "./dependencies/linux64" #local pre-compiled dependency libraries and t
 installdir = "../../linux64" #directory to install to when finished
 builddir = "./build_linux64"
 
-doinstall = False   #copies the build_output to the install dir when finished
+doinstall = True   #copies the build_output to the install dir when finished
 cc = "gcc" #compiler
 cflags = "-fPIC -O3"
 libraries = "-l{}".format(libname)
diff --git a/build/make.mingw64.dll.py b/build/make.mingw64.dll.py
index cee0f9a..463135d 100644
--- a/build/make.mingw64.dll.py
+++ b/build/make.mingw64.dll.py
@@ -7,14 +7,14 @@ from shutil import copytree
 
 from amsbuildlib4 import *
 
-libname = "amscimglib4.mingw64" #static library name to generate
+libname = "amscimglib4.winx64" #static library name to generate
 binname = "tests" #create this executable when compiling main.c or main.cpp
 commondir = "../../winx64" #common directory to pul libraries and includes from
 depdir = "./dependencies/winx64" #local pre-compiled dependency libraries and their includes
 installdir = "../../winx64" #directory to install to when finished
 builddir = "./build_mingw64"
 
-doinstall = False   #copies the build_output to the install dir when finished
+doinstall = True   #copies the build_output to the install dir when finished
 cc = "x86_64-w64-mingw32-gcc" #compiler
 cflags = "-fPIC -O3 -DEXPORT_AMSCIMGLIB4"
 libraries = "-l{} -ljpeg -lpng -lz -lm".format(libname)
@@ -54,7 +54,7 @@ callproc("x86_64-w64-mingw32-strip --strip-all --discard-all {}/lib{}.dll".forma
 if(doinstall):
     #Push any libraries to the common lib folder
     shutil.copy(
-        '{}/lib{}.lib'.format(builddir,libname),
+        '{}/lib{}.a'.format(builddir,libname),
         "{}/lib".format(installdir)
     )
 
diff --git a/build/make.mingw64.test.py b/build/make.mingw64.test.py
index 5ec0cd7..12eca52 100644
--- a/build/make.mingw64.test.py
+++ b/build/make.mingw64.test.py
@@ -7,14 +7,14 @@ from shutil import copytree
 
 from amsbuildlib4 import *
 
-libname = "amscimglib4.mingw64" #static library name to generate
+libname = "amscimglib4.winx64" #static library name to generate
 binname = "tests" #create this executable when compiling main.c or main.cpp
 commondir = "../../winx64" #common directory to pul libraries and includes from
 depdir = "./dependencies/winx64" #local pre-compiled dependency libraries and their includes
 installdir = "../../winx64" #directory to install to when finished
 builddir = "./build_mingw64"
 
-doinstall = False   #copies the build_output to the install dir when finished
+doinstall = True   #copies the build_output to the install dir when finished
 cc = "x86_64-w64-mingw32-gcc" #compiler
 cflags = "-fPIC -O3"
 libraries = "-l{}".format(libname)
diff --git a/build/make.msvc64.dll.py b/build/make.msvc64.dll.py
index e143bd1..ed8a106 100644
--- a/build/make.msvc64.dll.py
+++ b/build/make.msvc64.dll.py
@@ -7,14 +7,14 @@ from shutil import copytree
 
 from amsbuildlib4 import *
 
-libname = "amscimglib4.msvc64" #static library name to generate
+libname = "amscimglib4.winx64" #static library name to generate
 binname = "tests.exe" #create this executable when compiling main.c or main.cpp
 commondir = "../../winx64" #common directory to pul libraries and includes from
 depdir = "./dependencies/winx64" #local pre-compiled dependency libraries and their includes
 installdir = "../../winx64" #directory to install to when finished
 builddir = "./build_msvc64"
 
-doinstall = False   #copies the build_output to the install dir when finished
+doinstall = True   #copies the build_output to the install dir when finished
 cc = "cl" #compiler
 cflags = "/MT /O2 /DEXPORT_TEMPLATEDLL"
 libraries = "lib{}.lib".format(libname)
diff --git a/build_linux64/libamscimglib4.linux64.a b/build_linux64/libamscimglib4.linux64.a
index 5687b4f..889d11a 100644
Binary files a/build_linux64/libamscimglib4.linux64.a and b/build_linux64/libamscimglib4.linux64.a differ
diff --git a/build_linux64/libamscimglib4.linux64.so b/build_linux64/libamscimglib4.linux64.so
index f95d8bd..fe55311 100644
Binary files a/build_linux64/libamscimglib4.linux64.so and b/build_linux64/libamscimglib4.linux64.so differ
diff --git a/build_linux64/objstore/amscimglib4_bitmap.o b/build_linux64/objstore/amscimglib4_bitmap.o
index 9ecc5a7..fc753be 100644
Binary files a/build_linux64/objstore/amscimglib4_bitmap.o and b/build_linux64/objstore/amscimglib4_bitmap.o differ
diff --git a/build_linux64/objstore/amscimglib4_image.o b/build_linux64/objstore/amscimglib4_image.o
index 58a3e14..d80ec3d 100644
Binary files a/build_linux64/objstore/amscimglib4_image.o and b/build_linux64/objstore/amscimglib4_image.o differ
diff --git a/build_linux64/objstore/amscimglib4_util.o b/build_linux64/objstore/amscimglib4_util.o
index d1572b2..afe56ca 100644
Binary files a/build_linux64/objstore/amscimglib4_util.o and b/build_linux64/objstore/amscimglib4_util.o differ
diff --git a/build_mingw64/libamscimglib4.mingw64.a b/build_mingw64/libamscimglib4.winx64.a
similarity index 61%
rename from build_mingw64/libamscimglib4.mingw64.a
rename to build_mingw64/libamscimglib4.winx64.a
index 8f1fef4..089c742 100644
Binary files a/build_mingw64/libamscimglib4.mingw64.a and b/build_mingw64/libamscimglib4.winx64.a differ
diff --git a/build_mingw64/libamscimglib4.mingw64.dll b/build_mingw64/libamscimglib4.winx64.dll
similarity index 99%
rename from build_mingw64/libamscimglib4.mingw64.dll
rename to build_mingw64/libamscimglib4.winx64.dll
index 2b8844a..0e6e243 100644
Binary files a/build_mingw64/libamscimglib4.mingw64.dll and b/build_mingw64/libamscimglib4.winx64.dll differ
diff --git a/build_mingw64/tests.exe b/build_mingw64/tests.exe
index 3690b62..983a6ea 100644
Binary files a/build_mingw64/tests.exe and b/build_mingw64/tests.exe differ
diff --git a/include/amscimglib4/amscimglib4.h b/include/amscimglib4/amscimglib4.h
index 0d53d9c..ef3a06b 100644
--- a/include/amscimglib4/amscimglib4.h
+++ b/include/amscimglib4/amscimglib4.h
@@ -12,8 +12,9 @@
         #define AMSCIMGLIB4_API __declspec(dllimport)
     #endif
 #else
-    //#define AMSCPPDLL_API __attribute__((visibility("default")))
-    #define AMSCIMGLIB4_API 
+    #define AMSCIMGLIB4_API __attribute__((visibility("default")))
+    //#define AMSCIMGLIB4_API 
+    //#define AMSCIMGLIB4_API __attribute__((visibility("hidden")))
 #endif
 
 #ifdef __cplusplus