buildenv zotman gawk updates

buildenv

@@ -51,9 +51,10 @@ ZZ
 zopen_install_caveats()
 {
 cat <<ZZ
-GNU Make has been installed as gmake under bin/ to avoid collision with z/OS /bin/make tool.
-If you prefer to use the make as is, source zopen-config with the option --override-zos-tools.
-Or add \$ZOPEN_ROOTFS/usr/local/altbin to your \$PATH.
+GNU make has been installed as gmake under the bin/ dir to avoid collision with z/OS /bin/make.
+The conflicting manpages have been installed under the share/altman dir. You can use zotman to view
+the manpages as such: zotman gmake
+If you prefer to use the GNU make as make, source zopen-config with the option --override-zos-tools.
 ZZ
 }
 
@@ -62,6 +63,10 @@ zopen_post_install()
   mv $ZOPEN_INSTALL_DIR/bin/make $ZOPEN_INSTALL_DIR/bin/gmake
   mkdir $ZOPEN_INSTALL_DIR/altbin
   ln -s ../bin/gmake $ZOPEN_INSTALL_DIR/altbin/make
+
+  mkdir -p $ZOPEN_INSTALL_DIR/share/altman/man1
+  mv $ZOPEN_INSTALL_DIR/share/man/man1/make.1 $ZOPEN_INSTALL_DIR/share/man/man1/gmake.1
+  ln -s ../../man/man1/gmake.1 $ZOPEN_INSTALL_DIR/share/altman/man1/make.1
 }
 
 zopen_get_version()