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This patch makes it possible to build GNU Classpath using javac
from OpenJDK 1.7 and 1.8.
- From the javac docs: "Classes found through the classpath are
subject to automatic recompilation if their sources are found."
javac from OpenJDK 1.7+ will try (and fail) to recompile "standard"
Java classes (e.g. java/lang/Object.java) when compiling the Java
test class. Fix this by explicitly passing an empty -sourcepath.
- Test for 1.6 instead of 1.5, as -source/-target 1.5 is deprecated
in Java 8, and the Makefiles already use -source/-target 1.6 anyway.
---
m4/ac_prog_java_works.m4 | 3 ++-
m4/ac_prog_javac_works.m4 | 4 ++--
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/m4/ac_prog_java_works.m4 b/m4/ac_prog_java_works.m4
index d3f2744..f36318b 100644
--- a/m4/ac_prog_java_works.m4
+++ b/m4/ac_prog_java_works.m4
@@ -62,7 +62,8 @@ EOF
changequote([, ])dnl
if test x$ac_cv_prog_uudecode_base64 != xyes; then
AC_REQUIRE([AC_PROG_JAVAC_WORKS])
- if AC_TRY_COMMAND($JAVAC $JAVACFLAGS $JAVA_TEST) && test -s $CLASS_TEST; then
+ CMD="$JAVAC $JAVACFLAGS -sourcepath '' $JAVA_TEST"
+ if AC_TRY_COMMAND($CMD) && test -s $CLASS_TEST; then
:
else
echo "configure: failed program was:" >&AC_FD_CC
diff --git a/m4/ac_prog_javac_works.m4 b/m4/ac_prog_javac_works.m4
index 7fb298d..fbe24ce 100644
--- a/m4/ac_prog_javac_works.m4
+++ b/m4/ac_prog_javac_works.m4
@@ -33,9 +33,9 @@ public class Object
}
EOF
if test x$JAVAC_IS_GCJ = xyes; then
- CMD="$JAVAC $JAVACFLAGS -fsource=1.5 -ftarget=1.5 $JAVA_TEST"
+ CMD="$JAVAC $JAVACFLAGS -fsource=1.6 -ftarget=1.6 $JAVA_TEST"
else
- CMD="$JAVAC $JAVACFLAGS -source 1.5 -target 1.5 $JAVA_TEST"
+ CMD="$JAVAC $JAVACFLAGS -sourcepath '' -source 1.6 -target 1.6 $JAVA_TEST"
fi
if AC_TRY_COMMAND($CMD) >/dev/null 2>&1; then
ac_cv_prog_javac_works=yes
--
1.9.1
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