patches/gcc/4.4.0/120-java-nomulti.patch
author Anthony Foiani <anthony.foiani@gmail.com>
Thu May 19 23:06:16 2011 +0200 (2011-05-19)
changeset 2461 ec30b191f0e3
permissions -rw-r--r--
complibs/ppl: build only C and C++ interfaces for PPL

By default, PPL wants to build interfaces for any of a variety of
langauges it finds on the local host (python, java, possibly perl, also
more esoteric languages such as ocaml and prolog).

These extra interfaces can double the compile time for the library. For
single-process builds, I found a savings of more than 40%:

default / j1: 716s total, 143.2s avg, 0.52s stdev
just_c / j1: 406s total, 81.2s avg, 0.33s stdev
just_c_cpp / j1: 413s total, 82.6s avg, 0.22s stdev

And for multi-process builds, it approached 50%:

default / j4: 625s total, 125.0s avg, 0.57s stdev
just_c / j4: 338s total, 67.6s avg, 1.25s stdev
just_c_cpp / j4: 327s total, 65.4s avg, 0.36s stdev

Since the PPL we build within ct-ng is only used by GCC, we only need to
build the C and C++ interfaces.

Signed-Off-By: Anthony Foiani <anthony.foiani@gmail.com>
yann@1393
     1
diff -durN gcc-4.4.0.orig/libjava/configure gcc-4.4.0/libjava/configure
yann@1393
     2
--- gcc-4.4.0.orig/libjava/configure	2009-04-21 11:08:08.000000000 +0200
yann@1393
     3
+++ gcc-4.4.0/libjava/configure	2009-05-27 21:38:03.000000000 +0200
yann@1393
     4
@@ -1021,6 +1021,8 @@
yann@1393
     5
                           default=yes
yann@1393
     6
   --enable-java-maintainer-mode
yann@1393
     7
                           allow rebuilding of .class and .h files
yann@1393
     8
+  --enable-libjava-multilib
yann@1393
     9
+                          build libjava as multilib
yann@1393
    10
   --disable-dependency-tracking  speeds up one-time build
yann@1393
    11
   --enable-dependency-tracking   do not reject slow dependency extractors
yann@1393
    12
   --enable-maintainer-mode  enable make rules and dependencies not useful
yann@1393
    13
@@ -1973,6 +1975,16 @@
yann@1393
    14
 fi
yann@1393
    15
 
yann@1393
    16
 
yann@1393
    17
+# Check whether --enable-libjava-multilib was given.
yann@1393
    18
+if test "${enable_libjava_multilib+set}" = set; then
yann@1393
    19
+  enableval=$enable_libjava_multilib;
yann@1393
    20
+fi
yann@1393
    21
+
yann@1393
    22
+if test "$enable_libjava_multilib" = no; then
yann@1393
    23
+  multilib=no
yann@1393
    24
+  ac_configure_args="$ac_configure_args --disable-multilib"
yann@1393
    25
+fi
yann@1393
    26
+
yann@1393
    27
 # It may not be safe to run linking tests in AC_PROG_CC/AC_PROG_CXX.
yann@1393
    28
 
yann@1393
    29
 
yann@1393
    30
diff -durN gcc-4.4.0.orig/libjava/configure.ac gcc-4.4.0/libjava/configure.ac
yann@1393
    31
--- gcc-4.4.0.orig/libjava/configure.ac	2009-04-09 23:54:28.000000000 +0200
yann@1393
    32
+++ gcc-4.4.0/libjava/configure.ac	2009-05-27 21:38:03.000000000 +0200
yann@1393
    33
@@ -139,6 +139,13 @@
yann@1393
    34
 	[allow rebuilding of .class and .h files]))
yann@1393
    35
 AM_CONDITIONAL(JAVA_MAINTAINER_MODE, test "$enable_java_maintainer_mode" = yes)
yann@1393
    36
 
yann@1393
    37
+AC_ARG_ENABLE(libjava-multilib,
yann@1393
    38
+	AS_HELP_STRING([--enable-libjava-multilib], [build libjava as multilib]))
yann@1393
    39
+if test "$enable_libjava_multilib" = no; then
yann@1393
    40
+  multilib=no
yann@1393
    41
+  ac_configure_args="$ac_configure_args --disable-multilib"
yann@1393
    42
+fi
yann@1393
    43
+
yann@1393
    44
 # It may not be safe to run linking tests in AC_PROG_CC/AC_PROG_CXX.
yann@1393
    45
 GCC_NO_EXECUTABLES
yann@1393
    46