Add configure caching to speed up the build, and stop pixman and cairo for being configure twice

autogen.sh

@@ -128,7 +128,7 @@ autoconf || { echo "**Error**: autoconf failed."; exit 1; }
 
 if test -d $srcdir/pixman; then
   echo Running pixman/autogen.sh ...
-  (cd $srcdir/pixman ; ./autogen.sh "$@")
+  (cd $srcdir/pixman ; NOCONFIGURE=1 ./autogen.sh "$@")
   echo Done running pixman/autogen.sh ...
 fi
 
@@ -146,7 +146,7 @@ if test -d $srcdir/cairo; then
       export PKG_CONFIG_PATH
   fi
 
-  (cd $srcdir/cairo ; ./autogen.sh "$@")
+  (cd $srcdir/cairo ; NOCONFIGURE=1 ./autogen.sh "$@")
 
   echo Done running cairo/autogen.sh ...
 fi
@@ -212,7 +212,7 @@ if [ $configure_gallium -eq 1 ] ; then
   fi
 fi
 
-conf_flags="--enable-maintainer-mode --enable-compile-warnings --with-sanity-checks" #--enable-iso-c
+conf_flags="--enable-maintainer-mode --enable-compile-warnings --with-sanity-checks -C" #--enable-iso-c
 
 if test x$NOCONFIGURE = x; then
   echo Running $srcdir/configure $conf_flags "$@" ...

m4/utilities.m4

@@ -20,7 +20,7 @@ AC_CONFIG_SUBDIRS([$1])
 m4_ifblank([$2], [rm -f $1/configure.gnu],
     [AX_PRINT_TO_FILE([$1/configure.gnu],
 [#!/bin/sh
-./configure $2
+./configure $2 --cache-file=../config.cache
 ])
 ])
 

pixman/autogen.sh

@@ -9,4 +9,9 @@ cd $srcdir
 autoreconf -v --install || exit 1
 cd $ORIGDIR || exit $?
 
-$srcdir/configure "$@"
+if test x$NOCONFIGURE = x; then
+  echo Running $srcdir/configure $conf_flags "$@" ...
+  $srcdir/configure "$@"
+else
+  echo Skipping configure process.
+fi