diff --git a/Makefile b/Makefile
index ff49fc0d8..77bb4ce87 100644
--- a/Makefile
+++ b/Makefile
@@ -148,7 +148,7 @@ clean:
 #------------------------------------------------------------------------------
 # make install is validated only for Linux, macOS, Hurd and some BSD targets
 #------------------------------------------------------------------------------
-ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD DragonFly NetBSD MSYS_NT Haiku))
+ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD DragonFly NetBSD MSYS_NT Haiku AIX))
 
 HOST_OS = POSIX
 
diff --git a/lib/Makefile b/lib/Makefile
index 9b74e708c..1b4613c87 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -75,7 +75,11 @@ ifeq ($(UNAME), Darwin)
   SHARED_EXT_VER = $(LIBVER).$(SHARED_EXT)
   SONAME_FLAGS = -install_name $(LIBDIR)/libzstd.$(SHARED_EXT_MAJOR) -compatibility_version $(LIBVER_MAJOR) -current_version $(LIBVER)
 else
-  SONAME_FLAGS = -Wl,-soname=libzstd.$(SHARED_EXT).$(LIBVER_MAJOR)
+  ifeq ($(UNAME), AIX)
+    SONAME_FLAGS =
+  else
+    SONAME_FLAGS = -Wl,-soname=libzstd.$(SHARED_EXT).$(LIBVER_MAJOR)
+  endif
   SHARED_EXT = so
   SHARED_EXT_MAJOR = $(SHARED_EXT).$(LIBVER_MAJOR)
   SHARED_EXT_VER = $(SHARED_EXT).$(LIBVER)
@@ -245,7 +249,7 @@ clean:
 #-----------------------------------------------------------------------------
 # make install is validated only for below listed environments
 #-----------------------------------------------------------------------------
-ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku))
+ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku AIX))
 
 all: libzstd.pc
 
diff --git a/programs/Makefile b/programs/Makefile
index ef094fb74..fa557e6f9 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -337,7 +337,7 @@ include $(wildcard $(DEPFILES))
 #-----------------------------------------------------------------------------
 # make install is validated only for Linux, macOS, BSD, Hurd and Solaris targets
 #-----------------------------------------------------------------------------
-ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku))
+ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku AIX))
 
 HAVE_COLORNEVER = $(shell echo a | egrep --color=never a > /dev/null 2> /dev/null && echo 1 || echo 0)
 EGREP_OPTIONS ?=
diff --git a/tests/Makefile b/tests/Makefile
index 56c448340..bd45451a5 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -248,7 +248,7 @@ clean:
 # valgrind tests are validated only for some posix platforms
 #----------------------------------------------------------------------------------
 UNAME := $(shell uname)
-ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS))
+ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS AIX))
 HOST_OS = POSIX
 
 valgrindTest: VALGRIND = valgrind --leak-check=full --show-leak-kinds=all --error-exitcode=1
@@ -267,7 +267,6 @@ valgrindTest: zstd datagen fuzzer fullbench
 
 endif
 
-
 ifneq (,$(filter MINGW% MSYS%,$(UNAME)))
   HOST_OS = MSYS
 endif
diff --git a/tests/playTests.sh b/tests/playTests.sh
index 45d1d3fe8..69653276a 100755
--- a/tests/playTests.sh
+++ b/tests/playTests.sh
@@ -811,7 +811,7 @@ rm -f ./*.tmp ./*.zstd
 println "frame concatenation tests completed"
 
 
-if [ "$isWindows" = false ] && [ "$UNAME" != 'SunOS' ] && [ "$UNAME" != "OpenBSD" ] ; then
+if [ "$isWindows" = false ] && [ "$UNAME" != 'SunOS' ] && [ "$UNAME" != "OpenBSD" ] && [ "$UNAME" != "AIX" ]; then
 println "\n**** flush write error test **** "
 
 println "println foo | zstd > /dev/full"