45872 – [4.5 Regression] java/net/natVMInetAddress.cc:42:52: error: declaration of C function 'int gethostname(char*, int)' conflicts

Bug 45872 - [4.5 Regression] java/net/natVMInetAddress.cc:42:52: error: declaration of C function 'int gethostname(char*, int)' conflicts

Summary: [4.5 Regression] java/net/natVMInetAddress.cc:42:52: error: declaration of C ...

Status:	RESOLVED FIXED

Alias:	None

Product:	gcc
Classification:	Unclassified
Component:	libgcj (show other bugs)
Version:	4.5.2

Importance:	P2 normal
Target Milestone:	4.5.2
Assignee:	Not yet assigned to anyone

URL:
Keywords:	build

Depends on:
Blocks:

Reported:	2010-10-03 15:17 UTC by Dominique d'Humieres
Modified:	2010-11-22 14:19 UTC (History)
CC List:	0 users

See Also:
Host:	x86_64-apple-darwin10.4
Target:	x86_64-apple-darwin10.4
Build:	x86_64-apple-darwin10.4
Known to work:
Known to fail:
Last reconfirmed:	2010-11-12 14:01:03

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Description Dominique d'Humieres 2010-10-03 15:17:51 UTC

Bootstrapping 4.5 revision 164915 on x86_64-apple-darwin10.4 fails with

libtool: compile:  /opt/gcc/4.5_build/./gcc/xgcc -shared-libgcc -B/opt/gcc/4.5_build/./gcc -nostdinc++ -L/opt/gcc/4.5_build/x86_64-apple-darwin10/libstdc++-v3/src -L/opt/gcc/4.5_build/x86_64-apple-darwin10/libstdc++-v3/src/.libs -B/opt/gcc/gcc4.5/x86_64-apple-darwin10/bin/ -B/opt/gcc/gcc4.5/x86_64-apple-darwin10/lib/ -isystem /opt/gcc/gcc4.5/x86_64-apple-darwin10/include -isystem /opt/gcc/gcc4.5/x86_64-apple-darwin10/sys-include -DHAVE_CONFIG_H -I. -I../../../4.5_work/libjava -I./include -I./gcj -I../../../4.5_work/libjava -Iinclude -I../../../4.5_work/libjava/include -I../../../4.5_work/libjava/classpath/include -Iclasspath/include -I../../../4.5_work/libjava/classpath/native/fdlibm -I../../../4.5_work/libjava/../boehm-gc/include -I../boehm-gc/include -I../../../4.5_work/libjava/libltdl -I../../../4.5_work/libjava/libltdl -I../../../4.5_work/libjava/.././libjava/../gcc -I../../../4.5_work/libjava/../libffi/include -I../libffi/include -I/opt/sw64/include -fno-rtti -fnon-call-exceptions -fdollars-in-identifiers -Wswitch-enum -D_FILE_OFFSET_BITS=64 -fomit-frame-pointer -Wextra -Wall -D_GNU_SOURCE -DPREFIX=\"/opt/gcc/gcc4.5\" -DTOOLEXECLIBDIR=\"/opt/gcc/gcc4.5/lib\" -DJAVA_HOME=\"/opt/gcc/gcc4.5\" -DBOOT_CLASS_PATH=\"/opt/gcc/gcc4.5/share/java/libgcj-4.5.2.jar\" -DJAVA_EXT_DIRS=\"/opt/gcc/gcc4.5/share/java/ext\" -DGCJ_ENDORSED_DIRS=\"/opt/gcc/gcc4.5/share/java/gcj-endorsed\" -DGCJ_VERSIONED_LIBDIR=\"/opt/gcc/gcc4.5/lib/gcj-4.5.2-11\" -DPATH_SEPARATOR=\":\" -DECJ_JAR_FILE=\"\" -DLIBGCJ_DEFAULT_DATABASE=\"/opt/gcc/gcc4.5/lib/gcj-4.5.2-11/classmap.db\" -DLIBGCJ_DEFAULT_DATABASE_PATH_TAIL=\"gcj-4.5.2-11/classmap.db\" -g -O2 -MT java/net/natVMInetAddress.lo -MD -MP -MF java/net/.deps/natVMInetAddress.Tpo -c java/net/natVMInetAddress.cc  -fno-common -DPIC -o java/net/.libs/natVMInetAddress.o
java/net/natVMInetAddress.cc:42:52: error: declaration of C function 'int gethostname(char*, int)' conflicts with
/usr/include/unistd.h:455:6: error: previous declaration 'int gethostname(char*, size_t)' here
make[3]: *** [java/net/natVMInetAddress.lo] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-target-libjava] Error 2
make: *** [all] Error 2

Note that this step passes with -m32.

Comment 1 Dominique d'Humieres 2010-10-03 15:50:44 UTC

Bootstrapped after replacing 'int' with 'size_t' in x86_64-apple-darwin10/libjava/java/net/natVMInetAddress.cc.

Comment 2 Richard Biener 2010-10-03 19:41:02 UTC

Which release works?

Comment 3 Dominique d'Humieres 2010-10-03 20:00:46 UTC

> Which release works?

157991;-(

Comment 4 Richard Biener 2010-11-12 14:01:03 UTC

Please figure out why configury doesn't find HAVE_GETHOSTNAME_DECL set.

Is 4.6 also affected?

Comment 5 Dominique d'Humieres 2010-11-22 14:19:05 UTC

> Is 4.6 also affected?

No, otherwise I would have reported it.

This seems fixed gcc-4_5-branch revision 167027, so closing. For the record grepping HAVE_GETHOSTNAME_DECL gave

[macbook] gcc/4.5_build% grep -r HAVE_GETHOSTNAME_DECL *
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:#define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.status:D["HAVE_GETHOSTNAME_DECL"]=" 1"
x86_64-apple-darwin10/i386/libjava/include/config.h:#define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/java/net/natVMInetAddress.cc:#ifndef HAVE_GETHOSTNAME_DECL
x86_64-apple-darwin10/libjava/include/config.h:/* #undef HAVE_GETHOSTNAME_DECL */
x86_64-apple-darwin10/libjava/java/net/natVMInetAddress.cc:#ifndef HAVE_GETHOSTNAME_DECL

for revision 164915, while it gave

x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.log:#define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/config.status:D["HAVE_GETHOSTNAME_DECL"]=" 1"
x86_64-apple-darwin10/i386/libjava/include/config.h:#define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/i386/libjava/java/net/natVMInetAddress.cc:#ifndef HAVE_GETHOSTNAME_DECL
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:| #define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.log:#define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/config.status:D["HAVE_GETHOSTNAME_DECL"]=" 1"
x86_64-apple-darwin10/libjava/include/config.h:#define HAVE_GETHOSTNAME_DECL 1
x86_64-apple-darwin10/libjava/java/net/natVMInetAddress.cc:#ifndef HAVE_GETHOSTNAME_DECL

for revision 167027. I have no idea why ' #undef HAVE_GETHOSTNAME_DECL' got commented in x86_64-apple-darwin10/libjava/include/config.h for the failing case.