gbuild: add support for auto-creationa nd reuse of binary package.

many so-called 'external' libraries are built using the
UnpackedTarball/ExternalProject pattern, and their build is quite
stable... they can go month without any changes.
Yet some buildbot, that need to do full build, build them over and over
again.
This patch introduce the infrastructure to shortcut these build by using
a binary package of the build result

Change-Id: Ib0daf2a9d1a1f76802273c093bae7df8da4a90f8
Reviewed-on: https://gerrit.libreoffice.org/4764
Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com>
Tested-by: Norbert Thiebaud <nthiebaud@gmail.com>

1 files changed, 37 insertions, 10 deletions

diff --git a/configure.ac b/configure.ac
index a5180a1683c5..5894618ab9da 100644
--- a/configure.ac
+++ b/configure.ac
@@ -256,7 +256,7 @@ if test -n "$with_android_ndk"; then
     if test $host_cpu = arm; then
         ANDROID_APP_ABI=armeabi-v7a
         if test -n "$ANDROID_USING_CLANG"; then
-            ANDROIDCFLAGS="-gcc-toolchain $ANDROID_BINUTILS_PREBUILT_ROOT" 
+            ANDROIDCFLAGS="-gcc-toolchain $ANDROID_BINUTILS_PREBUILT_ROOT"
             ANDROIDCFLAGS="$ANDROIDCFLAGS -target armv7-none-linux-androideabi"
             ANDROIDCFLAGS="$ANDROIDCFLAGS -no-canonical-prefixes"
         else
@@ -1204,6 +1204,22 @@ AC_ARG_ENABLE(openssl,
          use only if you are hacking on it.]),
 ,enable_openssl=yes)
 
+AC_ARG_ENABLE(library-bin-tar,
+    AS_HELP_STRING([--enable-library-bin-tar],
+        [Enable the building and reused of tarball of binary build for some 'external' libraries
+        Some libraries can save their build result in a tarball
+        stored in TARFILE_LOCATION. that binary tarball is
+        uniquely identified by the source tarbal,
+        the content of the config_host.mk file and the content
+        of the top-level directory in core for that library
+        If this option is enabled, then if such a tarfile exist, it will be untarred
+        isntead of the source tarfile, and the build step will be skipped for that
+        library.
+        If a proper tarfile does not exist, then the normal source-based
+        build is done for taht library and a proper binary tarfile is created
+        for the next time.]),
+)
+
 dnl ===================================================================
 dnl Optional Packages (--with/without-)
 dnl ===================================================================
@@ -1813,26 +1829,26 @@ AC_ARG_WITH(branding,
     AS_HELP_STRING([--with-branding],
         [Use given path to retrieve branding images set.])
     [
-                          Search for intro.png about.svg flat_logo.svg 
-                          backing_left.png backing_right.png 
-                          backing_rtl_left.png backing_rtl_right.png 
+                          Search for intro.png about.svg flat_logo.svg
+                          backing_left.png backing_right.png
+                          backing_rtl_left.png backing_rtl_right.png
                           backing_space.png. If any is missing, default
                           ones will be used instead.
 
-                          Search also progress.conf for progress 
+                          Search also progress.conf for progress
                           settings on intro screen :
 
-                          PROGRESSBARCOLOR="255,255,255" Set color of 
+                          PROGRESSBARCOLOR="255,255,255" Set color of
                           progress bar. Comma separated RGB decimal values.
-                          PROGRESSSIZE="407,6" Set size of progress bar. 
+                          PROGRESSSIZE="407,6" Set size of progress bar.
                           Comma separated decimal values (width, height).
                           PROGRESSPOSITION="61,317" Set position of progress
                           bar from left,top. Comma separated decimal values.
                           PROGRESSFRAMECOLOR="20,136,3" Set color of progress
                           bar frame. Comma separated RGB decimal values.
-                          PROGRESSTEXTCOLOR="255,255,255" Set color of progress 
+                          PROGRESSTEXTCOLOR="255,255,255" Set color of progress
                           bar text. Comma separated RGB decimal values.
-                          PROGRESSTEXTBASELINE="287" Set vertical position of 
+                          PROGRESSTEXTBASELINE="287" Set vertical position of
                           progress bar text from top. Decimal value.
 
                           Default values will be used if not found.
@@ -1935,6 +1951,17 @@ AC_ARG_WITH(all-tarballs,
         [Download all external tarballs unconditionally]))
 
 dnl ===================================================================
+dnl Do we want to use pre-build binary tarball for recompile
+dnl ===================================================================
+
+if test "$enable_library_bin_tar" = "yes" ; then
+   USE_LIBRARY_BIN_TAR=YES
+else
+   USE_LIBRARY_BIN_TAR=NO
+fi
+AC_SUBST(USE_LIBRARY_BIN_TAR)
+
+dnl ===================================================================
 dnl Test whether build target is Release Build
 dnl ===================================================================
 AC_MSG_CHECKING([whether build target is Release Build])
@@ -3922,7 +3949,7 @@ mingw*)
         AC_MSG_ERROR([Unsupported host_cpu $host_cpu for host_os $host_os])
         ;;
     esac
-    
+
     SOLARLIB="-L${SOLARVER}/${OUTPATH}${PROEXT}/lib"
     ;;