compile in PASE IBM i from sources

[acerbis]

Hello, I've downloaded 5.5 and compiled on a PASE IBM i environment (it's like an AIX POSIX environment , power processor , inside a IBM i system).

Just to inform you, in order to compile it via gcc, I had to define these variables during configure

./configure --prefix=/QOpenSys/usr CC=/QOpenSys/pkgs/bin/gcc CPPFLAGS="-I/QOpenSys/pkgs/include -D_SIGSET_T -DHAVE_STDLIB_H -DIP_RECVTOS=0" CFLAGS="-g -O2"

_SIGSET_T required due to avoid a redefinition (guard) in a double include h on the system.
HAVE_STDLIB_H forced because it wasn't included by the auto configuration.
IP_RECVTOS forced to let it compile (this socket options is missing in this environment like some BSDs).

I just note here in case someone will find this useful on PASE.

BTW such gcc I see define the variable "___PASE__" when run in PASE environment... maybe it is possible to include in the stock sources a conditional def that auto include such vars if __PASE__ is defined? just to streamline the compilation process for this useful tool.
thanks

[gsnw-sebast]

You can try to handle this by extending configure.ac as follows.
Unfortunately, I am unable to test this.

configure.ac

diff --git a/configure.ac b/configure.ac
index 27454a9..256a02c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -23,6 +23,23 @@ case "${target}" in
     ;;
 esac
 
+dnl Detect IBM i PASE environment
+AC_MSG_CHECKING([for IBM i PASE environment])
+AC_COMPILE_IFELSE(
+  [AC_LANG_PROGRAM([[]], [[
+#if !defined(___PASE__)
+#error not PASE
+#endif
+  ]])],
+  [
+    AC_MSG_RESULT([yes])
+    AC_MSG_NOTICE([IBM i PASE detected: applying required CPPFLAGS and library paths])
+    CPPFLAGS="$CPPFLAGS -I/QOpenSys/pkgs/include -D_SIGSET_T -DHAVE_STDLIB_H -DIP_RECVTOS=0"
+    LDFLAGS="$LDFLAGS -L/QOpenSys/pkgs/lib"
+  ],
+  [AC_MSG_RESULT([no])]
+)
+
 dnl --disable-ipv4
 AC_ARG_ENABLE([ipv4],
   AS_HELP_STRING([--disable-ipv4], [Disable support for pinging IPv4 hosts]))

[acerbis]

Thanks.
Patched on 5.5 according to your script above, it works, downloaded 5.5, ./configure , make ... compiled successfully.
Only fix I did was that the variable is not ___PASE__ but with just two underscores, so __PASE__
thanks