Force initial ssgState before doing ssg cull and render pass so that the

[flightgear.git] / README.autoconf

diff --git a/README.autoconf b/README.autoconf
index 40a0fc61594e121417337bf64938bdc1e915d9d2..6f30c54106851807267e7f403dfe889d12dde2a2 100644 (file)
--- a/README.autoconf
+++ b/README.autoconf
@@ -4,14 +4,21 @@ libraries.  Key input files for this system are:
 
     configure.in - Top level directory
     Makefile.am - One in each subdirectory
-    Simulator/Include/config.in - input file for building config.h
+    Include/config.in - input file for building config.h
 
 If you need to modify any of these files, you will need to build and
 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
+