X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=README.autoconf;h=6f30c54106851807267e7f403dfe889d12dde2a2;hb=04170bd489e42b980378439c34cef231d02504df;hp=3f9104300c411450c9761de65b4030f249130415;hpb=d0dfa60488cbc00466e372d650e3a67e15580b15;p=flightgear.git

diff --git a/README.autoconf b/README.autoconf
index 3f9104300..6f30c5410 100644
--- a/README.autoconf
+++ b/README.autoconf
@@ -11,7 +11,14 @@ install the following packages:
 
     - GNU autoconf 2.12 (available from ftp://prep.ai.mit.edu/pub/gnu)
     - GNU automake 1.2h (available from ftp://ftp.cygnus.com/pub/tromey)
-    - GNU libtool 1.0c  (available from ftp://prep.ai.mit.edu/pub/gnu)
+
+Libtool is not currently used:
+
+    - GNU libtool 1.2   (available from ftp://prep.ai.mit.edu/pub/gnu)
+                        (or maybe ftp://alpha.gnu.org/gnu)
+    - After upgrading libtool, if we were using it, you would want to run:
+
+      libtoolize --force
 
 When making a change to any of these files you will need to run:
 
@@ -20,3 +27,17 @@ When making a change to any of these files you will need to run:
 Then follow the regular build procedure:
 
     ./configure; make; make install
+
+For debuging purposes you might want to try something like:
+
+    CFLAGS=-Wall CXXFLAGS=-Wall ./configure; make; make install
+
+For full optimization using the EGCS compiler on an Intel processor you 
+could try something like:
+
+    MACH="-mpentium"   # -m486 -mpentiumpro etc.
+    export CC=egcc     # for Linux
+    export CFLAGS="-Wall -O5 -fomit-frame-pointer -ffast-math -funroll-loops $MACH"
+    export CXXFLAGS="-Wall -O5 -fomit-frame-pointer -ffast-math -funroll-loops $MACH"
+    ./configure
+