Add the Eclipse Java Compiler to be able to compile Java.

Andy JOHNSON wrote:
  The Java compiler for GCC versions 4.3.0 and up requires the
  Eclipse compiler "ecj1" to be built as well.  I added "gcj" to
  the list of utilities to make the initial link.


 /trunk/scripts/build/cc/gcc.sh |   12    12     0     0 ++++++++++++
 /trunk/scripts/crosstool.sh    |    2     1     1     0 +-
 /trunk/config/cc/gcc.in        |    6     6     0     0 ++++++
 3 files changed, 19 insertions(+), 1 deletion(-)

3 files changed, 19 insertions, 1 deletions

diff --git a/config/cc/gcc.in b/config/cc/gcc.in
index 610ac59..9eb99b1 100644
--- a/config/cc/gcc.in
+++ b/config/cc/gcc.in
@@ -223,3 +223,9 @@ config CC_BUGURL
     default ""
     help
       Specify the URL that users should visit if they wish to report a bug.
+
+config CC_LANG_JAVA_USE_ECJ
+    bool
+    default y
+    depends on CC_LANG_JAVA
+    depends on CC_GCC_4_3_or_later
diff --git a/scripts/build/cc/gcc.sh b/scripts/build/cc/gcc.sh
index 1263e76..3274abc 100644
--- a/scripts/build/cc/gcc.sh
+++ b/scripts/build/cc/gcc.sh
@@ -12,12 +12,24 @@ do_cc_get() {
     # subdirectory! You bastard!
     CT_GetFile "gcc-${CT_CC_VERSION}"   \
                {ftp,http}://ftp.gnu.org/gnu/gcc{,{,/releases}/gcc-${CT_CC_VERSION}}
+    # Starting with GCC 4.3, ecj is used for Java, and will only be
+    # built if the configure script finds ecj.jar at the top of the
+    # GCC source tree, which will not be there unless we get it and
+    # put it there ourselves
+    if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" ]; then
+        CT_GetFile ecj-latest .jar ftp://gcc.gnu.org/pub/java   \
+                                   ftp://sourceware.org/pub/java
+    fi
 }
 
 # Extract gcc
 do_cc_extract() {
     CT_Extract "gcc-${CT_CC_VERSION}"
     CT_Patch "gcc-${CT_CC_VERSION}"
+    # Copy ecj-latest.jar to ecj.jar at the top of the GCC source tree
+    if [ "${CT_CC_LANG_JAVA_USE_ECJ}" = "y" ]; then
+        CT_DoExecLog ALL cp -v "${CT_TARBALLS_DIR}/ecj-latest.jar" "${CT_SRC_DIR}/gcc-${CT_CC_VERSION}/ecj.jar"
+    fi
 }
 
 #------------------------------------------------------------------------------
diff --git a/scripts/crosstool.sh b/scripts/crosstool.sh
index 228cb54..b00baa1 100755
--- a/scripts/crosstool.sh
+++ b/scripts/crosstool.sh
@@ -315,7 +315,7 @@ if [ -z "${CT_RESTART}" ]; then
             t="${!r}-"
         fi
 
-        for tool in ar as dlltool gcc g++ gnatbind gnatmake ld nm objcopy objdump ranlib strip windres; do
+        for tool in ar as dlltool gcc g++ gcj gnatbind gnatmake ld nm objcopy objdump ranlib strip windres; do
             # First try with prefix + suffix
             # Then try with prefix only
             # Then try with suffix only, but only for BUILD, and HOST iff REAL_BUILD == REAL_HOST