Change HP=UX compiler options from -Aa to -Ae, which implies
-D_HPUX_SOURCE and also turns on long long support.

Suggestion by stnor@sweden.hp.com (Stefan Norberg).

Please test this if you have access to HP-UX!!!
diff --git a/configure.in b/configure.in
index c881890..1bf8854 100644
--- a/configure.in
+++ b/configure.in
@@ -213,12 +213,12 @@
 case $ac_sys_system in
 hp*|HP*)
     case $CC in
-    cc|*/cc) CC="$CC -Aa -D_HPUX_SOURCE";;
+    cc|*/cc) CC="$CC -Ae";;
     esac;;
 BeOS*)
-	case $CC in
-	cc) CC=cc;;
-	esac;;
+    case $CC in
+    cc) CC=cc;;
+    esac;;
 Monterey*)
     case $CC in
     cc) CC="$CC -Wl,-Bexport";;