fix C vs C++ locale handling on AIX+gcc; tweak mini-setup script

mini-setup.sh

@@ -6,7 +6,7 @@
 
 cp src/mini-setup/twcfg.txt bin/twcfg.txt
 cp src/mini-setup/twpol.txt bin/twpol.txt
-chdir bin
+cd bin
 
 if [ ! -f "l" ] || [ ! -f "s" ]; then
   echo "***** Generating Keys *****"

src/core/platform.h

@@ -200,6 +200,9 @@
 #    elif defined(_AIX)
 #        define OS OS_AIX
 #        define IS_AIX 1
+#        if defined(__PASE__)
+#            define IS_PASE 1
+#        endif
 
 #    elif defined(__hpux)
 #        define OS OS_HPUX
@@ -351,7 +354,7 @@
 #    define USE_STD_CPP_LOCALE_WORKAROUND \
         (IS_SUNPRO || (IS_KAI && !IS_KAI_3_4)) // TODO:BAM -- name this something more general.
 //#    define USE_CLIB_LOCALE IS_KAI || HAVE_GCC
-#    define USE_CLIB_LOCALE (!HAVE_LOCALE || (HAVE_GCC && IS_SOLARIS))
+#    define USE_CLIB_LOCALE (!HAVE_LOCALE || (HAVE_GCC && (IS_SOLARIS || IS_AIX)))
 #    define USES_CLIB_DATE_FUNCTION      \
         (USE_CLIB_LOCALE || IS_SUNPRO || \
          IS_MSVC) // if we use clib, can't use C++ time_put, and SUNPRO and MSVC add characters